Manual Vento

7/28/2019 Manual Vento

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Duct Units

INSTALLATIONA

NDOPERAT

INGINSTRU

CTIONS

03/2012


2/402

Vento duct air handling units are manufactured in accordance with valid Czech and European regulations and

technical standards.

Vento duct air handling units must be installed and used only in accordance with this documentation.

The manufacturer is not responsible for any damages resulting from use other than intended,

and the customer bears the risks of such use.

The installation and operating documentation must be available for the operating and servicing staff.

It is advisable to store this documentation close to the Vento unit..

When handling, installing, wiring, commissioning, repairing or servicing the Vento duct air handling units,

it is necessary to observe valid safety rules, standards and generally recognized technical rules.

In particular, it is necessary to use personal protective work aids (e.g. gloves) because of sharp edgesand corners when performing any handling, installing, dismounting, repairing or checking of Vento duct

units. All device connections must comply with the respective safety standards and regulations.

Any changes or modifications to individual components of the Vento system which could affect its safety

and proper functioning are forbidden.

Before installing and using the Vento air handling units, it is necessary to familiarize yourself with

and observe the directions and recommendations included in the following chapters.

The Vento duct air handling units, including their individual parts, are not intended, due to their concept,

for direct sale to end customers. Each installation must be performed in accordance with a professional

project created by a qualified air-handling designer who is responsible for the proper selection

and dimensioning of components concerning their suitability for a given application. The installation

and commissioning may be performed only by an authorized company licensed in accordance

with generally valid regulations.

When disposing of components and materials, it is necessary to observe the respective environmental

protection and waste disposal regulations. In case offinal device liquidation, it is necessary to follow the policy

of differential waste disposal. We recommend metal parts be scrapped and other parts be disposed

of in accordance with separated waste regulations.

Further information can be found in the Duct Units Catalogue and in the AeroCAD planning software.

Up-to-date version of this document is available at website www.remak.eu

StranaContents

Fans RP Fans ............................................................................................................ 3RQ Fans ............................................................................................................. 5

Fans .................................................................................................................... 7

RS Fans* ............................................................................................................ 9

RPH Fans ......................................................................................................... 11

RP Ex, RQ Ex Fans .......................................................................................... 12Fan output

Controllers TRN Controllers .............................................................................................. 14TRRE, TRRD Controllers .................................................................................16

Exchangers EO, EOS, EOSX Electric Heaters .................................................................... 17VO Water Heaters .......................................................................................... 21

SUMX Mixing Sets ............................................................................................ 23

CHV Water Coolers .......................................................................................... 26

CHF Direct Coolers ......................................................................................... 27

Heat Exchangers HRV Plate Heat Exchangers ............................................................................ 28

Accessories KFD Bag Filters ................................................................................................ 29VFK Insert Air Filters ....................................................................................... 29

LKR Blade Dampers ......................................................................................... 30LKS Blade Dampers ......................................................................................... 30

LKSX Blade Dampers ....................................................................................... 31

LKSF Blade Dampers ....................................................................................... 31

SKX Mixing Sections ...................................................................................... 32

TKU Attenuators ............................................................................................... 32

EKP Drop Eliminators ....................................................................................... 32

Petlakov klapky PK Pressure Dampers ......................................................... 33PZ Louvers ....................................................................................................... 33

DV, DK Elastic Connections ............................................................................. 34

EP, GK Flanges ................................................................................................ 34

Humidification ................................................................................................... 34

Introduction* Instalation instructions for the new RF series of roof fans are available in separate document.


3/403

RP Fans

using fan-washers placed on both sides, at least on one

flange connection.

To brace the flanges with a side longer than 40 cm,

it is advisable to connect them in the middle with ano-ther screw clamp which prevents flange bar gapping.

Technical Information

Figure 2 Suspension using perforated stripsOperating Conditions, Position

The RP fans are designed for indoor and outdoor appli-

cations, and to transport air without solid, fibrous, sticky,

aggressive, respectively explosive impurities.

For outdoor applications it is necessary to finish the

fans with a protective coating (except rating plates). Thetransported air must be free of corrosive chemicals or

chemicals aggressive to zinc and/or aluminium. The RP

fans can work in any position. When positioned under

the ceiling, it is advisable to situate the fan with its cup

directed downwards to ease access to the motor ter-

minal box. However, if transported air is oversaturated

with moisture or if the risk of intensive steam condensa-

tion inside the fan exists, it is better to situate the fan's

cup upwards while leaving enough servicing space for

the motor terminal box.

Mechanical InstallationThe fan must be checked carefully before its instal-lation, especially if it was stored for a longer time. In

particular it is necessary to check all parts and cable

insulation for damage, and to see whether the rotary

parts can rotate freely.

It is recommended to insert the DV elastic connecti-ons in front of and behind the fan.

It is advisable to always place the KFD or VFK airfilters in front of the fan to protect the fan and duct aga-

inst dirtying and dust fouling.

If the fan is installed in such a way that persons orobjects can come into contact with the impeller, the gu-

ard grid must be mounted.

The fan must be suspended by separate suspensi-ons so that no loading can be transferred to the elastic

connections or connected duct.

Anchoring to the ceiling with steel anchors and sus-pension using threaded rods (see fig. #1), perforated

galvanized strips (see fig. #2) or ancillary construction is

recommended.

Before installation, paste self-adhesive sealing on tothe connecting flange face. To connect individual parts

of the Vento system, use galvanized screws and nuts

M8 (M10 only for RP 90-50 and RP 100-50). It is ne-

cessary to ensure conductive connection of the flange

Figure 1 Anchoring to the ceiling

The Wiring

The wiring can be performed only by a qualified wor-ker licensed in accordance with national regulations.

The fans can be equipped with two types of terminalboxes:

a) An all-plastic terminal box fixed with screws to the

fan casing, and equipped with WAGO terminals; max.

cross-section of connecting conductors 1.5 mm2 (see

fig. #3).

b) A plastic terminal box fixed with screws to the motorstator, and equipped with screw terminals (see fig. #4).

Figure 4 Plastic terminal box on the motor stator

Figure 3 All-plastic terminal box on the fan casing


4/404

RP Fans

After starting the fan, the current must also be me-asured, and it must not exceed the maximum allowed

current Imax. stated on the rating plate. If the measured

values exceed the given current value, it is necessary to

check the duct system regulation.

The fans are equipped with thermo-contacts situa-ted in the motor winding; they are connected to the TK

terminals. If the motor gets too hot, the thermo-contact

will open. The thermo-contact must be connected to the

control or regulating system (e.g. control unit, TRN con-

troller or STE, STD relay) which is able to evaluate the

failure, and protect the motor against unwanted thermal

effects. The proper function of the controller must ensu-

re that after getting cold and the thermo-contact closing,

the motor cannot be spontaneously started. Before re-

starting the fan, it is necessary to check the duct system

regulation, electrical parameters of the motor and the

entire wiring. If the fans are operated without connecti-on to this protection, our warranty for the damaged mo-

tor will become void.

Operation, Maintenance and Service

During operation it is necessary to check proper func-

tioning of the fan, its smooth running, to keep it and its

surroundings clean, and load the fan only within the

range given by its output characteristics.

If a failure occurs, make sure that the power supply

is disconnected, and check the fan for foreign objects

inside, and free rotation. If the fan does not run after it

has been restarted, the following procedures must be

followed depending on the protection system used:If the fan is protected by STE or STD relays: Turnthe fan on/off using the buttons on the protecting relay.

If the fan is protected by a TRN controller: Turn thefan on/off using the switch on the remote controls of the

controller.

If the fan is protected by the control unit: Press theunblocking button on the control unit (the horn symbol),

and restart the unit.

If the fan does not start: Check the wiring, and measure

the motor winding impedance. If the motor is damaged,

contact your supplier.

Warning! When performing any maintenance or repairs,the device must always be disconnected from the power

supply! To ensure voltage-free state, the device must be

provided with a stand-alone and lockable switch (or with

a control unit equipped with such a switch).

Rubber plugArrow indicating the direction

of impeller rotation

Figure 6 Rubber plug in the inspection opening


The wiring connection to the terminals can be perfor-med following the marking on the motor cables, descrip-

tion of terminals or the label on the terminal box lid (see

fig. #5).

The following cables are recommended to connectfan motors:

HO5VVH2 - F 2Ax0,75 thermo contact circuit

CYKY 3Cx1,5 single-phase motor supply

CYKY 4Bx1,5 three-phase motor supply

Motor Protection

As standard, the permanent monitoring of internal

motor temperature is applied in all motors. The limit

temperature is monitored by thermal contacts (the TK-

-thermo-contacts) situated in the motor winding. The

thermo-contacts are miniature thermal tripping elements

which after being connected to the protective contactorcircuit protect the motor against overheating (dama-

ging) due to phase failure, forced motor braking, current

protection circuit breakdown or excessive temperature

of transported air. The thermal protection by means

of thermo-contacts is complex and reliable providing

they are correctly connected. This type of protection is

essential especially for speed controlled and frequently

started motors and motors highly thermally loaded by

hot transported air.

Therefore, the fan motors cannot be protected by con-

ventional overcurrent protection elements!

The thermo-contact rated loading is 6A / 250V / 50 Hz

(cos 0.6).

Activation and Start-up The fan can be started after its mounting into theduct system for which it has been designed; preferably

fully throttled by closing either the intake or discharge to

avoid its overloading! (Applicable for fans with non-wor-

king area).

The fan is loaded by increasing the airflow, i.e. by

releasing the throttling.

After starting the fan with three-phase motor, theright direction of the impeller rotation must be checked

following the direction of the arrow on the fan. To do so,remove the rubber plug from the inspection opening in

the fan cup (see fig. #6). The RP fans' impellers rotate

always to the left, i.e. counter clockwise (looking throu-

gh the inspection opening).

Figure 5 Wiring diagram

Single-phasefan motor

L1

Three-phasefan motor

N PETK TK L1 L2 L3TK TK PE

TK

TK

PE

U2

U1

Z1

Z2

TK

TK

PE

W1

V1

U1

TK thermo-contact terminals

U1, U2 single-phase motor supply terminals 1f 230V/50Hz

PE protective conductor terminal

U1, V1, W1 three-phase motor supply terminals 3d 3x 400V/50Hz


5/405

RQ Fans

Operating Conditions, Position

The RQ fans are designed for indoor and outdoor ap-

plications, and to transport air without solid, fibrous,

sticky, aggressive, respectively explosive impurities.

For outdoor applications, it is necessary tofinish thefans with a protective coating (except rating plates). The

transported air must be free of corrosive chemicals or

chemicals aggressive to zinc and/or aluminium. The RQ

fans can work in any position. When positioned under

the ceiling, it is advisable to situate the fan with its cup

directed downwards to ease access to the motor ter-

minal box. However, if transported air is oversaturated

with moisture or if the risk of intensive steam condens-

ation inside the fan exists, it is better to situate the fan's

cup upwards while leaving enough servicing space for

the motor terminal box.


particular, it is necessary to check all parts and cable



It is recom-mended to use

elastic connecti-

ons; a DV elastic

connection on the

discharge side

and the DK elas-tic connection on

the intake side.

It is advisableto always place

an airfilter in

front of the fan

to protect it and

the duct against

dirtying and dust

fouling.

If the fan is in-stalled in such a

way that persons

or objects can

come into contact with the impeller, the guard grid must

be mounted.

The RQ fans are provided on three sides with an-choring holes to be anchored to the foundation in one of

three possible positions (see fig. #7). The RQ

fans can be anchored with four anchoring bolts; howe-

ver, we recommend using silent-blocks to eliminate the

transfer of vibrations.

All versions of the RQ fans can work in any position.Before installation, paste self-adhesive sealing onto

the connecting flange face. To connect individual partsof the Vento system, use galvanized screws and nuts

M8. It is necessary to ensure conductive connection of

the flange using fan-washers placed on both sides at

least on one flange connection.

Figure 8 All-plastic terminal box on the fan casing

Technical information

Rubber plugArrow indicating

the direction

of impeller rotation

When using fans with three-

phase motors, the right direction

of rotation must be checked

after their connection to the

wiring. The inspection opening is

situated on the motor cup. The

RQ fans' impellers rotate always

to the left, i.e. counter clockwise

(looking through the inspection

opening).

Figure 10 Rubber plug location


Figure 7 Anchoring holes





Figure 9 Plastic terminal box on the motor stator

single-phasefan motor

L1

three-phasefan motor

N PETK TK L1 L2 L3TK TK PE

TK

TK

PE

U2

U1

Z1

Z2

TK

TK

PE

W1

V1

U1

The Wiring


The fans can be equipped with two types of terminalboxes:


6/406

RQ Fans



During operation it is necessary to check proper func-


surroundings clean, and to load the fan only within the


If a failure occurs, make sure that the power supplyis disconnected, and check the fan for foreign objects


has been restarted, the following procedures must befollowed depending on the protection system used:

If the fan is protected by STE or STD relays: Turn the

fan on/off using the buttons on the protecting relay.

If the fan is protected by a TRN controller: Turn the

fan on/off using the switch on the remote controls of the

controller.

If the fan is protected by the control unit: It is necessa-

ry to turn the unit on again.

If the fan does not start:

Check the wiring, and measure the motor winding im-

pedance.

If the motor is damaged, contact your supplier.

Warning! When performing any maintenance orrepairs, the device must always be disconnected

from the power supply! To ensure voltage-free sta-

te, the device must be provided with a stand-alone

and lockable switch (or with a control unit equipped

with such a switch).

a) An all-plastic terminal box fixed with screws to the

fan casing, and equipped with WAGO terminals; max.


fig. #8).

b) A plastic terminal box fixed with screws to the motor

stator, and equipped with screw terminals (see fig. #9).The wiring connection to the terminals can be per-formed following the marking on the motor cables, the

description of terminals or the picture on the terminal

box lid (see fig. #11).


H05VVH2 -F 2Ax0,75 thermo contact circuit



Motor Protection


motor temperature is applied in all motors. The limittemperature is monitored by thermal contacts (the TK-

thermo-contacts) situated in the motor winding. The


which after being connected to the protective contactor

circuit protect the motor against overheating (dama-

ging) due to phase failure, forced motor braking, current

protection circuit breakdown or excessive temperature

of transported air. The thermal protection by means

of thermo-contacts is complex and reliable providing

they are correctly connected. This type of protection is

essential especially for speed controlled and frequently

started motors and motors highly thermally loaded byhot transported air.




(cos 0.6).

Activation and Start-up The fan can be started after its mounting into theduct system for which it has been designed; respective-

ly fully throttled by closing either the intake or discharge

to avoid its overloading!

The fan is loaded by increasing the airflow, i.e.

by releasing the throttling.After starting the fan with three-phase motor, theright direction of the impeller rotation must be checked

visually following the direction of the arrow on the fan.

To do so, remove the rubber plug from the inspection

opening in the fan cup (see fig. #10).

After starting the fan, the current must also be me-asured, and it must not exceed the maximum allowed

current Imax. stated on the rating plate. If the measu-

red values exceed the given current value, it is neces-

sary to check the duct system regulation.

The fans are equipped with thermo-contacts situa-

ted in the motor winding; they are connected to the TKterminals. If the motor gets too hot, the thermo-contact



troller or STE relay) which is able to evaluate the failure,

and protect the motor against unwanted thermal effects.

The proper function of the controller must ensure that

after getting cold and the thermo-contact closing, the

motor cannot be spontaneously started. Before restar-

ting the fan, it is necessary to check the duct system

regulation, the electrical parameters of the motor and

the entire wiring. If the fans are operated without con-nection to this protection, our warranty for the damaged

motor will become void.


7/407

RO Fans

Operating Conditions, PositionThe RO fans are designed for indoor and outdoor appli-

cations, and to transport air without solid, fibrous, sticky,

aggressive, respectively explosive impurities. For out-

door applications, it is necessary to finish the fans with

a protective coating (except rating plates). The transpor-ted air must be free of corrosive chemicals or chemicals

aggressive to zinc, aluminium and/or plastics.

Mechanical Installation

The fan must be checked carefully before its instal-lation, especially if it was stored for a longer time. In




It is recommended to install DV elastic connectionsin front of and behind the fan.

It is advisable to always place the KFD or VFK air

filters in front of the fan to protect the fan and duct aga-


If the fan is installed in such a way that persons orobjects can come into contact with the impeller, the gu-

ard grid must be mounted.


connections or connected duct.

Anchoring to the ceiling with steel anchors and sus-pension using threaded rods (see fig. #12), perforated

galvanized strips (see fig. #13) or ancillary construction

is recommended.

The RO fans can work in any position. When positi-oned under the ceiling, it is advisable to situate the fan

with its service panel directed downwards to ease ac-

cess to the motor terminal box.

If transported air is oversaturated with moisture or ifthe risk of intensive and permanent steam condensation

inside the fan exists (e.g. showers, kitchens, laundry

plants, etc.), it is better to situate the fan's access panel

upwards while leaving enough space for the service

panel opening to ensure easy access to the motor ter-

minal box.

Figure 12 Anchoring to the ceiling

Figure 13 Anchoring using galvanized strips


Before installation, paste self-adhesive sealing ontothe connecting flange face. To connect individual parts


M8. It is necessary to ensure conductive connection of

the flange using fan-washers placed on both sides, at

least on one flange connection.

To brace the flanges with a side longer than 40 cm, itis advisable to connect them in the middle with another

screw clamp which prevents flange bar gapping.

After loosening the two wing screws, the hingedservice panel on which the motor and impeller are fixed

can be easily opened.

The motor and impeller must be periodically checkedand cleaned. Especially if the fan is connected to the

outlet from a kitchen or an exhaust hood, and the grea-sy dirt can be expected, the impeller and motor must be

regularly cleaned with warm water and detergent.

The Wiring


The fans are equipped with an all-plastic terminal

box fixed with screws to the fan service panel. The

terminal box is equipped with WAGO terminals; max.


fig. #14).

Figure 14 All-plastic terminal box

Terminal box

Starting capacitor


8/408

RO Fans

Installation, Maintenance and Service

Figure 16 Hinged service panel

Service panelImpeller

Motor

The wiring connection to the terminals can be per-formed following the marking on the motor cables, the

description of terminals or the label on the terminal box

lid (see fig. #15).

The CYKY 3Cx1,5 cable is recommended to connect

the fan motor to the supply.


U1, U2

single-phase motor supply terminals1f

230V/50Hz

PE

protective conductor terminalSingle-phase

motor fan

L1NPE

Motor Protection

As standard, the permanent and automatic monitoringof internal motor temperature is applied in all motors of

RO fans. The limit temperature is monitored by thermal

contacts (the TK-thermo-contacts) situated in the motor

winding. The thermo-contacts are miniature thermal

tripping elements which are connected in series with the

supply circuit, and thus protect the motor against over-

loading due to excessive temperature of transported air,

etc.

ZU1

U2

PE

Warning! When performing any maintenance or re-

pairs, the device must always be disconnected from

the power supply!

To ensure voltage-free state, the device must be

provided with a stand-alone and lockable switch (or

with a control unit equipped with such a switch).

Activation and Start-up

After starting the fan, the current must also be mea-sured, and it must not exceed maximum allowed current

Imax. stated on the rating plate. If the measured values

exceed given the current value, it is necessary to check

whether the rotary parts can rotate freely.

The fans are equipped with thermo-contacts situa-

ted in the motor winding. If the motor gets too hot, the

thermo-contact will automatically disconnect the power

supply. After getting cold, the thermo-contact closes,

and connects the power supply. The activated thermal

protection mostly signals a failure. If this is the case,

then it is necessary to check the electric parameters of

the motor as well as the entire wiring.

If the fans are operated without connection to this prote-

ction, our warranty for the damaged motor will become

void.


During operation, it is necessary to check properfunctioning of the fan, its smooth running, to keep it and

its surroundings clean, and to load the fan only within

the range given by its output characteristics.



inside, free impeller rotation, respectively whether the

motor is overheated.

If the fan does not start: Check the wiring, and me-asure the motor winding impedance. If the motor is da-

maged, contact your supplier.


9/40

RS Fans

9


The RS fans are designed for indoor and outdoor ap-

plications, and to transport air without solid, fibrous,

sticky, aggressive, respectively explosive impurities

(an adequate surfacefinish is a condition for outdoorapplications). The transported air must be free of corro-

sive chemicals or chemicals aggressive to zinc and/or

aluminium. The RS fans can work only in the horizontal

position (i.e. the impeller rotation axis is in the vertical

position).


Motor Protection





thermo-contacts (TK) are miniature thermal tripping

elements which after being connected to the protecti-

ve contactor circuit protect the motor against overhe-

ating (damaging) due to phase failure, forced motor

braking, current protection circuit breakdown or exces-

sive temperature of transported air. The thermal pro-

tection by means of thermo-contacts is complex and

reliable providing they are correctly connected. This

type of protection is essential especially for speed

controlled and frequently started motors and motors

highly thermally loaded by hot transported air.

The fan motors are equipped with the thermo-contacts

in two versions:Serial Thermo-Contact (self-acting)The thermo-contact in the motor connected in series to the

motor winding will disconnect the power supply if the win-

ding temperature exceeds 130 C. After getting cold, the

thermo-contact closes, and the fan will start. All RS 30 fans

are equipped with serial thermo-contacts.

Brought-Out Thermo-Contact (control)The fan equipped with a thermo-contact brought out into the

terminal box (TK terminals) must be connected to the prote-

ctive device. When the temperature exceeds critical values,the thermo-contact will disconnect the control circuit of the

protective device which will further disconnect the motor

power supply. All RS fans, except the RS 30 line, are equip-ped with brought-out thermo-contacts. The thermo-contact

rated loading is 6A / 250V - 50 Hz (cos 0.6).


After starting the fan with three-phase motor, the right

direction of the impeller rotation must be checked following

the direction of the arrow on the fan supporting plate.

After starting the fan, the current must be measured, and

it must not exceed maximum allowed current Imax. stated

on the rating plate. If the measured values exceed the gi-

ven current value, it is necessary to check the duct system

regulation, and to check the direction of rotation.

Safety guards and heads must not be removed if the fan

is in operation. The fan must be installed in such a way that

neither persons nor objects can come into contact with the

impeller.

The fans are equipped with thermo-contacts situated in

the motor winding; they are connected to the TK terminals.

If the motor gets too hot, the thermo-contact will disconnect

the control circuit of the protective contactor, and after ge-

tting cold, the thermo-contact connects it again. The RS 30

line is equipped with a self-acting thermo-contact connected

in series to the power supply.

The wiring must be performed in accordance with the

project and Installation manual. Before putting the fan intooperation, a wiring inspection must be performed. If the

fans are operated without connection to this protection, our

warranty for the damaged motor will become void.


L1 N P ETK TK L1 L2 L3TK TK PE

TK

TK

PE

U2

U1

Z1

Z2

TK

TK

PE

W1

V1

U1







Mechanical Installation

The fan must be checked carefully before its instal-lation, especially if it was stored for a longer time. In

particular, it is necessary to check all parts and cable in-

sulation for damage, and to see whether the rotary parts

can rotate freely.

The RS fans can work only in the horizontal position(i.e. the impeller rotation axis is in the vertical position).

The same applies also for their transport.

It is recommended to install the RS fan on a roofadaptor. A self-acting pressure damper connected to the

fan intake prevents air backdraught.

The RS fans and roof adaptors delivered in the stan-dard version need to be finished with a protective coa-

ting after installation.

The Wiring

The wiring can be performed only by a qualified worker

licensed in accordance with national regulations.The fans are equipped with an all-plastic terminalbox fixed with screws to the fan supporting plate. The

terminal box is equipped with WAGO terminals.

The wiring connection to the terminals can be per-formed following the marking on the motor cables, the

description of terminals or the label on the terminal box

lid (see fig. #17).


HO5VVH2 - F 2Ax0,75 thermo-contact circuit



The wiring cables are led from the terminal boxthrough one of the supporting studs as far as to below

the fan platform, and then through the roof adaptor into

the ventilated space.

The wiring diagram (see fig. #17) with front-end ele-ments (protective relays, controllers, control units).

*

* Instalation instructions for the new RF series of roof

fans are available in separate document.


10/40

RS Fans

10

Fan Accessories Installation

The NK or NDH roof adaptors make the installationof RS fans significantly easier. The roof adaptors can be

used on almost any type of roof.

The opening in the roof construction must not be lar-ger then the adaptor platform and it should be of a pre-

cise square shape. The adaptor platform must be drilled

and screwed to the roof construction.

The contact surfaces of the roof adaptor platform androof construction must be thoroughly sealed with sealing

cement.

The wiring cable can be led through the roof adaptorand through one of the fan supporting studs into the ter-

minal box.

Roof hydro-insulation should also be applied on theroof adaptor up to a height of 30 cm. The end of the roof

hydro-insulation must be completed with sealing cement

and flashing to prevent water penetration (see fig. #18).

Warning! When performing any maintenance

or repairs, the device must always be discon-

nected from the power supply!

To ensure voltage-free state, the device mustbe provided with a stand-alone and lockable

switch (or with a control unit equipped with

such a switch).

Accessories, Operation, Maintenance and Service


A regular check of the RS fan must be performedonce a year.

During operation, it is necessary to check proper

functioning of the fan, its smooth running, to keep it andits surroundings clean.




followed depending on the protection system used:

If the fan is protected by STE or STD relays: Turn the

fan on/off using the buttons on the protecting relay.

If the fan is protected by a TRN controller: Turn the

fan on/off using the switch on the remote controls of the

controller.

If the fan is protected by the control unit: Press theunblocking button on the control unit, and turn the unit

on

If the fan does not start: Check the wiring, and measure the motor winding im-

pedance.

If the motor is damaged, contact your supplier.

Before installation, paste self-adhesive sealing ontothe lower side of the fan platform. To connect the plat-

form to the duct, use galvanized screws and nuts M8.

It is necessary to ensure conductive connection of the

fan platform using fan-washers placed on both sides at

least on one connection, or use Cu conductor wiring.

The roof adaptors need to be painted with a protecti-ve coating after installation.

It is advisable to seal all screw joints on the fan withsilicone cement.

The roof adaptors for applications on sloping roofscan be delivered with their platforms adjusted to the

roof sloping. Specify the roof sloping angle in your order

(see fig. #19).

Figure 20 Duct connection to the roofadaptor

Figure 19 Roof adaptor installed on a sloping roof

The roof adaptor platform is provided with four M8riveted nuts so that standard roof adaptors (without slo-

ping) can be connected to the air-handling duct.

Figure 18 Roof adaptor installed on a flat roof

extension base concrete ceiling

tinsmith edging

roof hydro-insulation

wooden chock

supporting balks

air ventilation gap

flooring boards

thermal insulation

plumb piashing

roof hydroinsulation

flooring boards

roof laths

beam

adapter thermal insulation

roof adapter

washer

bolt M8 x M8

Connected piping


11/4011

RPH Fans

Figure 23 Internal wiring arrangement

The internal wiring arrangement of 3f fans is similar.



insulation for damages, and to see whether the rotary


It is recommended to insert the DV elastic connecti-ons in front of and behind the fan.

It is advisable to always place the KFD or VFK airfilters in front of the fan to protect the fan and duct aga-


If the fan is installed in such a way that persons or

objects can come into contact with the impeller, the gu-ard grid must be mounted.


connections or connected duct. The suspensions must

always include attenuation and anti-vibration elements

(e.g. silent blocks).

Anchoring to the ceiling using steel anchors and"Z" suspensions of suitable load capacity (e.g. ZZTP

suspensions with integrated silent blocks of 80 kg load

capacity) riveted to the fan casing (see fig. #21) or an-

cillary construction is recommended.

Figure 21 "Z" suspensions


The RPH fans are designed only for indoor environment

free of humidity condensation. They can transport air

without solid, fibrous, sticky, aggressive, respectively

explosive impurities. The transported air must be free

of corrosive chemicals or chemicals aggressive to zincand/or aluminium.

The RPH fans can work only in the horizontal position.

When positioned under the ceiling, it is advisable to

situate the fan with its cup directed downwards to ease

access to the motor terminal box.

The RPH fans must always be provided, both intake

and discharge, with dilatation inserts and attenuators,

respectively with noise insulated ducts. The RPH fan

suspensions must always include attenuation and anti-

vibration elements (e.g. silent blocks).


Figure 22 Wiring diagrams






L1


N PE

TK TK

L1 L2 L3TK TK PE

TK

TK

PE

U2

U1

Z1

Z2

TK

TK

PE

W1

V1

U1

The prescribed airflow direction is marked on thefan casing by an arrow.

The RPH fans can work only in the horizontal positi-on. When positioned under the ceiling, it is advisable to

situate the fan with its cup directed downwards to ease

access to the motor terminal box.Before installation, paste self-adhesive sealing ontothe connecting flange face. To connect individual parts


M8 (M10 only for RPH 90-50 and RPH 100-50). It is ne-

cessary to ensure conductive connection of the flange

using fan-washers placed on both sides at least on one

flange connection.



The Wiring


The fans are equipped with WAGO terminals; max.cross-section of connecting conductors 1.5 mm2

The wiring connection to the terminals can be per-formed following the marking on the motor cables in

the terminal box or the description of terminals (see fig.

#22).


12/4012

RPH Fans

Installation


During operation, it is necessary to check proper func-








If the fan is protected by STE or STD relays: Turnthe fan on/off using the buttons on the protecting relay.

If the fan is protected by the TRN controller: Turn thefan on/off using the switch on the remote controls of the

controller.

If the fan is protected by the control unit: Press theunblocking button on the control unit (the horn symbol),

and restart the unit.If the fan does not start: Check the wiring, and measure

the motor winding impedance. If the motor is damaged,

contact your supplier.

Warning!

When performing any maintenance or repairs,

the device must always be disconnected from the

power supply! To ensure voltage-free state, the de-

vice must be provided with a stand-alone and loc-

kable switch (or with a control unit equipped with

such a switch).

The wiring diagrams with front-end elements (protective

relays, controllers, control units) are included in the in-

stallation manual.


HO5VVH2 F 2Ax0,75 thermo contact circuit



Motor Protection






which after being connected to the protective contactor

circuit protect the motor against overheating (damaging)

due to phase failure, forced motor braking, current pro-

tection circuit breakdown or excessive temperature of

transported air.

The thermal protection by means of thermo-contacts is

complex and reliable providing they are correctly con-

nected. This type of protection is essential especially for

speed controlled and frequently started motors and mo-

tors highly thermally loaded by hot transported air.




(cos 0.6).


The fan can be started after its mounting into theduct system for which it has been designed; preferably

fully throttled by closing either the intake or dischargeto avoid its overloading! (Applicable for fans with non-

working area). The fan is loaded by increasing the air

flow, i.e. by releasing the throttling.

After starting the fan with three-phase motor, theright direction of the impeller rotation must be checked

following the direction of the arrow on the fan. To do so,

remove the rubber plug from the inspection opening in

the fan cup.

After starting the fan, the current must be measured,and it must not exceed the maximum allowed current

Imax. stated on the rating plate. If the measured values

exceed the given current value, it is necessary to checkthe duct system regulation.

The fans are equipped with thermo-contacts situa-ted in the motor winding; they are connected to the TK

terminals. If the motor gets too hot, the thermo-contact



troller or STE, STD relay) which is able to evaluate the

failure, and protect the motor against unwanted thermal

effects. The proper function of the controller must ensu-

re that after getting cold and the thermo-contact closing,

the motor cannot be spontaneously started.

Before restarting (unblocking) the fan, it is necessary to

check the duct system regulation, electrical parametersof the motor and the entire wiring.

If the fans are operated without connection to this prote-

ction, our warranty for the damaged motor will become

void.


13/4013

RP Ex, RQ Ex Fans

Operation, Maintenance and ServiceDuring operation, it is necessary to check proper func-









If the fan is protected by the STD relay. Turn the fan

on/off using the buttons on the protecting relay.

If the Ex fan is protected by the TRN controller and

UR3R1011 relay, the following restart procedure is ne-

cessary: The restart can be performed only after the

motor has cooled down. First, press the button RESET,

unblock the thermistor relay, and then unblock the TRN

controller selecting the STOP state on the remote ORegovernor.

If the fan is protected by the VCB control unit and

UR3R1011 relay, the following restart procedure is ne-

cessary: The restart can be performed only after the

motor has cooled down. First, press the button RESET,

unblock the thermistor relay, and then unblock the fai-

lure on the LORZJ control module, refer to operation

manual.

Warning!

When performing any maintenance or repairs,

the device must always be disconnected from thepower supply!

To ensure voltage-free state, the device must be

provided with a stand-alone and lockable switch (or

with a control unit equipped with such a switch).

Operating Conditions, PositionRP and RQ Ex fans are designed for indoor and out-

door applications, and to transport air without solid,

brous, sticky or aggressive impurities. The transported

air must be free of corrosive chemicals or chemicals

aggressive to zinc, copper and/or aluminium. The allo-

wed temperature of the transported air ranges from

-20 C up to +40 C.

These fans are designed for use in Zone 1 in reference

to the classication of explosion hazardous areas in

accordance with the EN 60079-10 standard.

Explosion-proof RP and RQ Ex fans, secure version "e",

belong according to EN 60079-0 to Group II and are la-

belled with the II 2G Exe II TX marks.The fans themselves are labelled with the

II 2G c IIB+H2TXmarks proving their explosion-

-proof design.

The fans can work in any position.When positioned under the ceiling, it is advisable to

situate the RP Ex fan with its cup directed downwards

to ease access to the motor terminal box. However, if

transported air is oversaturated with moisture or if the

risk of intensive steam condensation inside the fan

exists, it is better to situate the fan's cup upwards while

leaving enough servicing space for the motor terminal

box.

The RQ Ex fans are mostly installed in the horizontal

position of the motor shaft rotation (however, this is not

a condition of use). The square sidewalls of the fan ser-

ve also as legs to x the fan onto the base using anchorbolts. The fan can be positioned in four positions turned

by 90.

Motor ProtectionAs standard, the permanent monitoring of internal motor

temperature is applied in all motors. The temperature

inside the motor is read by temperature sensitive sen-

sors (thermistors) situated in the motor winding. The

thermistors must be connected to the trip relay which,

after reaching a temperature of 130 C, disconnects the

protective contactor circuit. This system protects the

motor against overheating due to phase failure, forced

motor braking, current protection circuit breakdown orexcessive temperature of transported air. This thermal

protection is complex and reliable providing it is cor-

rectly connected.

It is forbidden to protect the motors by conventio-

nal overcurrent protection elements!

InstallationInstallation, maintenance and service are the same as

with RP and RQ fans.

Thermistor Protection of Ex FansThe temperature inside the motors of all RP Ex and

RQ Ex fans is permanently read by temperature sen-sitive sensors (PTC thermistors) situated in the motor

winding. The thermistors must be connected to the trip

relay which, after reaching a temperature of 130 C, ir-

revocably disconnects the coil control circuit of the STD

or TRD protective elements.



14/4014

TRN Transformer Controllers

ON ... means connected state, OFF ... means disconnected state

Blocking of Output StagesFor each output stage which can be blocked (1, 2, 3)

there serves one connection "jumper". A combination

of their states assigns blocked output stages. Their set-

tings are independent; however, in practice the lowest

stages are blocked, usually dependently, as indicated in

the following table:

Table 1 - Blocking of output stages

InstallationThe installation and commissioning can be perfor-med only by an authorized company licensed in accor-

dance with valid regulations.

The controller must be checked carefully before itsinstallation, especially if it was stored for a longer time.

In particular, it is necessary to check all parts and cable

insulation for damage.

It is advisable to place the TRN output controller clo-se to the fan, e.g. in a machine room, in the ceiling, etc.

The controller can be placed on a wall, air-handling duct

or ancillary construction. With regard to its weight, the

controller is installed in three steps.

First, fix the base with 4 screws 6 mm. Hang the controller supporting plate, including wiring,

on the base, and secure it with a screw.

Finally, fix the controller cover.

The installation must be performed considering theweight of the controller, easy wiring, barrier-free service

access, and free cooling openings.

As the controller contains sensitive electro-mecha-nical parts, take care and keep the controller interior

clean. Especially, it is necessary to avoid the controller

being contaminated with dirt from a construction site

(dust, sand, plaster, etc).

The remote control can be situated at any distancefrom the controller, and mounted on a wall at the opera-tor's location.

The WiringThe wiring can be performed only by a qualified worker

licensed in accordance with national regulations.

Cables for the power supply, fan motors connectionand control are led through plastic grommets, and con-

nected to the WAGO terminals in the lower part of the

controller casing.

The wiring connection must be performed in accor-dance with the description inside the controller (fig. #24,

page #15).To make replacing the fuse easy, free access and thenecessary handling space must be provided.

Each fan must be connected to a separate controller.If one output stage for two fans (inlet, outlet) is needed,

it is possible to control both controllers by one remote

Operating Conditions, PositionThese controllers are intended for indoor applications in a

dry, dust and chemical- free environment. They are desi-

gned for normal environmental conditions in accordance

with SN 33 2000-3 (IEC 364-3). Degree of protection: IP 20 Permissible ambient temperature: +5 C to +40 C

Position: always vertical or horizontal.

The controllers can be situated on a wall, air-handling duct

or ancillary construction. They can be mounted on A and B

combustibility grade materials in accordance with the SNEN 13 501-1 and, SN 73 0823 standards.The installation must be performed considering the weight

of the controller, easy wiring, service access, and free

cooling openings. The controller casing is provided with

ventilation openings, which must not be covered.


governor. For more detailed information, refer to the

operating instructions of individual controllers.

As standard, the TRN controllers are equipped withintegrated fan motor protection. The TK terminals in the

controller serve to interconnect the TK terminals of the

fan motor thermo-contacts.If the fan motor is overheated due to overloadingor emergency, the thermo-contacts will open and the

controller will stop the fan. When the motor cools down,

and the failure is removed, the fan can be restarted

from the zero position on the remote governor.

The TRN controllers enable remote (external) star-ting/stopping of the fan independently of the governor.

This function can be controlled by connecting or discon-

necting the circuit between the PT1 and PT2 terminals.

This feature can be used to start the fan by an external

switch (thermostat, rheostat, hydrostat, auxiliary con-

tact, etc...).

After connecting the controller, the current must bemeasured, and it must not exceed maximum allowed

value in any output stage. The maximum current value

is stated on the rating plate as a numerical part of the

type code of the controller (e.g. TRN7D means

Imax.

= 7A).

If the current values are higher, check whether thecontroller is connected to the appropriate fan; the rated

current of the fan should be lower or equal to Imax.

of the

controller.

If the measured current value still exceeds the maxi-mum permissible value even though the connected fan

complies with the above-mentioned criteria, immediate-ly check the duct system regulation. The fan is probably

operated in a so-called forbidden (non-working) area of

the fan output characteristics. The proper current value

can be reached by airflow throttling. If the current value

does not drop, it is necessary to check the electrical pa-

rameters of the entire wiring.

The installation must be performed in accordancewith the project (resp. Installation Manual). Before put-

ting the controller into operation, an inspection of the

wiring must be performed.

"Jumper" location, see figure #25, page # 15.

Blocking of output stages"Jumper" settings

J1 J2 J3

No blocking ON ON ON

stage 1 OFF ON ONstage 1 + stage 2 OFF OFF ON

stage 1 + stage 2 +stage 3 OFF OFF OFF


15/40


15


Wiring diagram

Figure 24 Terminal diagram of TRN controllers

Single-phase Controller: TRN 2E (4E, 7E)

Speed

Speed 1

Speed 2

Speed 3

Speed 4

Speed 5

STOP All other speed options

STOP/RESET

START

48: 0V/DC

49: +24V/DC, 80 mA

TK, TK: terminals

of thermo-contacts

PT1, PT2: ext. switching

terminals (e.g. space thermostat)

L1, N, PE: 230V supply 1f

U1, N, PE: output controlled

voltage for 1f motor

U1, V1,

W1, PE: 400V supply

U5, V5, W5: output controlled

voltage for 3f motor

1x 230V+N+PE AC 50 Hz

3x 400V+N+PE AC 50 Hz

Figure 25 Jumpers' location

Jumpers

J1, J2, J3

Contact dimensioning

24V/DC, 0,1A

Three-phase Controller: TRN 2D (4D, 7D, 9D)


16/4016

TRRE, TRRD Output Controllers

TRRE, TRRD Transformer Controllers

If the current values are higher, check whether thecontroller is connected to the appropriate fan; the rated

current of the fan should be lower or equal to Imax. of

the controller.

If the measured current value still exceeds the maxi-

mum permissible value even though the connected fancomplies with the above-mentioned criteria, immediate-

ly check the duct system regulation. The fan is probably

being operated in a so-called forbidden (non-working)

area of the fan output characteristics. The proper cur-

rent value can be reached by the airflow throttling.

If the current value does not drop even after adjusting theduct system regulation, it is necessary to check the electrical

parameters of the entire wiring.

Each fan should be connected to a separate control-ler. If this recommendation cannot be fulfilled, max. two

fans can be connected to one controller, and enough

current margins must be kept, i.e. the minimum ratingcurrent of the controller must be 20% higher than the

sum of the maximum currents of both fans. Example:

The total max. current of two fans RP 60-35/31-6D is 2

x 1.86A = 3.72A, plus adding 20% margin the controller

current is 4.46A. For this value, the first higher control-

ler TRRD 7 will be used.

Figure 26 Terminal diagram of TRRE(D) controllers

Installation

The installation and commissioning can be perfor-med only by an authorized company licensed in accor-dance with valid regulations.The controller must be checked carefully before itsinstallation, especially if it was stored for a longer time.In particular, it is necessary to check all parts and cableinsulation for damage.The controller can be placed on a wall, air-handlingduct or ancillary construction only in the vertical or hori-zontal position. With regard to its weight, the controlleris installed in three steps: First, fix the base with 4 screws 6 mm. Hang the controller supporting plate, including

wiring, on the base, and secure it with a screw. Finally, fix the controller cover.The controller must be placed within reach of theoperator. The installation must be performed conside-ring the weight of the controller, easy wiring, free coo-ling openings and its degree of electrical protection.As the controller contains sensitive electro-mecha-nical parts, take care and keep the controller interiorclean (avoid dust, sand, plaster, etc).The controllers enable mechanical blocking of out-put stages 0-3. The blocking serves for the minimum airflow setting, i.e. to limit low outputs or to block the "0"stage if the control unit is used. It can be simply carriedout by bending the corresponding lamella on the rotary

switch coulisse. The WiringThe wiring can be performed only by a qualified workerlicensed in accordance with national regulations.Cables for the power supply, fan motors connection andcontrol are led through plastic grommets and connectedto the WAGO terminals in the lower part of the controllercasing.The TRRE and TRRD controllers are not equipped withan integrated fan motor protection. Therefore, external pro-tection devices must be used (STE, STD relays or controlunit).The connection must be carried out according to figure

26, page 16.After connecting the controller and starting the fan,the current must be measured, and it must not exceedthe maximum allowed value in any output stage. Themaximum current value is stated on the rating plate asa numerical part of the type code of the controller (e.g.TRN7D means I

max.= 7A).

Operating Conditions, PositionThese controllers are intended for indoor applicationsin dry, dust and chemical free environments. They aredesigned for normal environmental conditions in accor-dance with SN 33 2000-3 (IEC 364-3).

Degree of protection: IP 20 Permissible ambient temperature: +5 C to +40 C Position: always only vertical or horizontalThe controllers can be situated on a wall, air-handlingduct or ancillary construction; however, always only inthe vertical or horizontal position. The installation mustbe performed considering the weight of the controller.They can be mounted on A and B combustibility gradematerials in accordance with the SN EN 13 501-1standard. The controller casing is provided with venti-lation openings which must not be covered. Permanentand easy access to the controller must be ensured.

K

P

The blocking of a selected output

stage can be simply carried out bybending the corresponding lamella

on the rotary switch coulisse K up,

90 aslant. Thus the arm of the rotary

switch P is blocked from passing

through the position of the given out-

put stage.

Figure 27

Stages 0 3 can be blocked by

bending the corresponding lamel-

las on the rotary switch coulisse

. One or the range of two,

three or four successive positions of

the rotary switch can be blocked.

This figure shows blocking of the

output stage . The rotary switch

can be turned right or left so all sta-

ges except stage are available.

Figure 28

Figure 29

1x 230V

+N+PE AC 50 Hz

3x 400V

+N+PE AC 50 Hz

Single-phas

e

ControllerTRRE

Three-phase

ControllerTRRD


17/4017

EO, EOS, EOSX Electric Heaters

The Wiring

The heater supply cables must be dimensioned in ac-

cordance with valid technical standards, and maximum

current, cable bedding and length must also be taken

into account. The cable sections are valid for CYKY

cables, type of cable bedding: B, C, E in air at ambient

temperature up to +30 C (SN 33 2000-5-523, resp.IEC 364-5-523).

The cables are led through grommets into the wiring

distribution box, which is an integral part of the heater.Inside the wiring distribution box, the cables are inter-

connected with inner wiring using screw-free clip termi-

nals.

The heating rods of all heaters are designed for230V voltage.

The heaters are provided with two-stage thermalprotection with two stand-alone thermostats (for details,

refer to the chapter "Thermal Protection").

Simpler and cheaper heaters in the EO product line,designed for less demanding conditions, are switched

by the contactor directly in the control unit.

EOS and EOSX heaters are switched by electronic

non-contact switching relays SSR (Solid State Relay)which are characterized by long service life (indefinite

number of closures compared to contactors), low input

(15 mW) to switch output rates in kWs, switching at

zero voltage, abatable nuisance, without sparking, opti-

cally separated input and output (dielectric strength of

4 kV).

Installation

The heater must be checked carefully before its in-stallation, especially if it was stored for a longer time. It

is necessary to check parts for damage, and in particu-

lar, whether the heating rods, thermal fuses, insulation

of conductors, terminals, etc are in good condition.The heaters can operate in any position except theposition with the wiring distribution box directed down-

wards.

The heater must be installed so that the prescribedairflow direction through the heater will be retained.

The prescribed airflow direction is marked on the termi-

nal box by an arrow. The correct airflow direction can

also be determined according to the position of the alu-

minium cooler, which must be situated in cold airflow

(in front of the heating rods), (see fig. # 30).

There is no need for individual suspensions to install

the electric heaters. They can be inserted into the ductline, but they must not be exposed to any strain or torsi-

on caused by the connected duct line.

The heaters must be situated at a safe distance fromflammable or easily inflammable materials. The location

of the heater must allow free space for heater surface

cooling.

It is necessary to keep easy access to the heater,especially to its wiring distribution box.

Before installation, paste up to +100 C heat re-sistant sealing onto the connecting flange facing the

heater.

Heaters with dimensions up to 80-50 mm are con-nected to the air-handling duct by 20 mm wide barflan-

ges and four M8 screws on each flange. Heaters with

dimensions up to 90-50 mm are connected to the air-

handling duct by 30 mm wide barflanges and four M10

screws on each flange. To brace the flanges with a side

longer than 40 cm, it is advisable to connect them in the

middle with another screw clamp which prevents flange

bar gapping.

The lid of the wiring distribution box of heaters up to30 kW is fixed with four M4 screws, while the lid of the

wiring distribution box of 45 kW heaters is fixed with six

M4 screws.

It is necessary to ensure conductive connection ofthe lid using fan-washers placed on both sides (at least

on one connection), or use Cu conductor wiring.

The electric heater must be provided with automaticcontrol of the output. REMAK units are recommended

to supply, control and protect electric heaters.

Wiring and Commissioning

The installation of the heater must be performed in ac-

cordance with the project and catalogue (respectively

Installation Manual). The installation can be performed

only by an authorized company licensed in accordance

with generally valid regulations.The wiring diagrams of terminals of electric heatersare attached on the following pages.

The wiring must be checked before putting the devi-ce into operation.

Proper functioning of protective and emergencythermostats connection must be checked before com-

missioning the electric heater. When the circuit of emer-

gency thermostats is disconnected, the control unit

must disconnect the power supply to the heater power

circuit, and signal failure of the heater due to overhea-ting.

The EOSX heaters are controlled by voltage of 10-40V/DC from the control unit. When connecting the he-

ater, it is necessary to observe the proper polarity the

heater terminal Q14 (+). If the polarity is reversed, the

heater will not heat.

The control voltage of the EOSX heater is led throu-gh a limiting thermostat with a switching point of +45

C, which is situated on the cooler of the SSR switching

relays.

The heater is provided with two emergency thermo-

stats adjusted to +80 C . The thermostats are connec-ted to terminals E3 and GE.

Installation, Service and Maintenance


18/4018


Installation, Service and Maintenance

Cooler

of SSR switches

Figure 30 Location of SSR cooler switches


The electric heater needs to be regularly checked at le-

ast at the beginning of each heating season.

During operation, the heater must be checked forsurface cleanness, surface temperature, and the con-

nected cables for damage.It is necessary to inspect the proper switching func-tions of protective devices. If the air-handling device

is stopped by the emergency system due to heater

overheating, it is necessary to find and remove the failu-

re following the respective installation manual.

TroubleshootingWhen you start the air-handling system for the first time,

you can face an undesirable situation. The following

text includes common sources of problems and their

removal:

Permanently low output air temperature Too low temperature was adjusted

on the control unit.

Too low heater output for the given airflow and T. Wrong connection (polarity) of Q14, GC terminals.

The limiting thermostat is defective.

The electric heater's control circuit has been

disconnected

Permanently high output air temperature Too high EO, EOS heaters output for the given air

flow and T. In regulation quality terms, in normal con-ditions higher temperature fluctuation can be expected

with EO and EOS electric heaters controlled by a cont-rol unit than with EOSX heaters or EOS heaters with

a current valve.

The output air temperature fluctuates Too high EO, EOS heaters output for the given air

flow and T.In regulation quality terms, in normal conditions higher

temperature fluctuation can be expected with EO and

EOS electric heaters controlled by a control unit than

with EOSX heaters or EOS heaters with a current valve.

Repeated activation of emergency temperatureprotection

No airflow due to wrong installation. Failure of the emergency thermostat.

The emergency circuit has been disconnected.

Defective SSR switching relay.

The above-mentioned failures which cause repeated

activation of the temperature protection are serious, and

need to be repaired immediately.

Thermal Protection

Generally, if the electric heaters are not properly pro-

tected and controlled, they can be dangerous. Aside

from electrical protection, attention must also be paid to

thermal protection. When creating the project layout, we

recommend observing the following principles.The electric heater output must be automaticallycontrolled.

The operation of the heater must be blocked if thefan is out of operation for any reason, or the speed of

the airflow is limited to below the accepted level.

Either the air-handling device is switched off manual-ly or automatically the heater must be switched offfirst,

and then with time delay sufficient for heater cooling,

the dampers can be closed and the fan switched off.

An airfilter must be placed at a sufficient distance infront of the heater. Without using an airfilter, there is a

danger of the heating rods fouling and being damageddue to insufficient cooling. Sufficient protection can be

ensured by a KFD filter with a filter insert.

Gradual filter fouling causes a reduction in the airflow rate. Therefore, it is necessary to monitor the filter

condition via the differential pressure sensor, and chan-

ge the filter insert in due time.

The speed of the airflow in the electric heatershould not fall below 1 2 meters per second. If the

output of the fan is controlled by the TRN controller, it

is possible to block the lower stages of the controller

so that the speed of the airflow will not fall below the

limit value. As a consequence of breakdown or failing toobserve any of the above-mentioned recommendations,

an emergency situation could occur due to overheating.

Complex and system protection can be ensured by pro-

per connection of the electric heater to the control unit.

As standard, all heaters are equipped with stand-alone

thermal limiters in accordance with the SN 33 2000-4-42 (IEC 364-4-42) standards. The thermal limiters (ther-

mostats) permanently prevent the limit temperature in

the air-duct and in the wire distribution box from being

exceeded.

Basic (emergency) thermal protection

Thermal protection of all electric heaters is ensuredby two emergency thermostats connected into a serial

loop. The thermostats are adjusted in production to +80

C; one reads the temperature among the heating rods

while the other reads the temperature inside the wiring

distribution box. If the thermo-contact in the loop trips

(due to the heater overheating), the power supply of the

heater must be disconnected.

Extended thermal protection

The thermal protection of EOS and EOSX electric

heaters is extended by a protective SSR circuit. The

temperature of the cooler of the SSR switching relays

is read by the third protective thermostat adjusted to

a switching point of +45 C. When this temperature is

exceeded, the control signal to SSR is interrupted. After

cooling down, the thermostat will automatically switch

the control circuit, while the fans work without stopping

all the time.

View in the air

flow direction


19/4019


Wiring Diagrams

El.heater

EO

El.heater

EOS

El.heater

EO

El.heater

EOS

GC,

Q14

Controlsignal10-40V/

DC(+Q14)

Type

Dimensional

line

Output[kW]

G3,

E3

thermo-contacts

max.

230V/1A

Nneutralconductor

U,

V,

W

powersupplyterminals

3x400V/50Hz

PE

Protectiveconductorterminal

Nneutralconductor

U,

V,

W


3x400V/50Hz

PE


G3,

E3

thermo-contacts

max.

230V/1A

Type

Dimensional

line

Output

[kW]

Type

Dimens

ional

line

Output[kW]

Type

Dimens

ional

line

Output[kW]

GC,

Q14

Controlsignal10-40V/

DC(+Q14)

Nneutralconduc

tor

U,

V,

W

powersupplyt

erminals

3x400V/50Hz

PE


G3,

E3

thermo-contacts

max.2

30V/1A

G3,

E3

th

ermo-contacts

m

ax.

230V/1A

Nneutralconduc

tor

U,

V,

W


3x400V/50Hz

PE



20/4020


El.heater

EOSX

El.heater

EOSX

El.heater

E

OSX

El.heater

E

OSX

GC,

Q14

Controlsignal10-40V

/DC(+Q14)

Q31

firstsectionswitching(-Q31)

Q32

secondsectionswitchin

g(-Q32)

Wiring Diagrams

Type

Dimensional

line

Output[kW]

Type

Dimensional

line

Output[kW]

Type

Dimens

ional

line

Output[kW]

Type

Dimens

ional

line

Output[kW]

Nneutralconductor

U,

V,

W


3x400V/50Hz

PE


G3,

E3

thermo-contacts

max.

230V/1A

GC,

Q14

Controlsignal10-40V/DC(+Q14)

Q31

firstsectionswitching(-Q

31)

Q32

secondsectionswitching(-Q32)

Nneutralconductor

U,

V,

W


3x400V/50Hz

PE


G3,

E3

thermo-contacts

max.

230V/1A

GC,

Q14


Q31


Q32


Nneutralconduc

tor

U,

V,

W


3x400V/50Hz

PE


G3,

E3

thermo-contacts

max.

230

V/1A

GC,

Q14


Q31


Q32


Nneutralconductor

U,

V,

W

powersupplyte

rminals

3x400V/50Hz

PE

Protectivecond

uctorterminal

G3,

E3

thermo-conta

cts

max.

230V/1A


21/4021

Water heaters VO

Installation

The heater must be checked carefully before its in-stallation, especially if it was stored for a longer time. It

is necessary to check parts for damage, and in particu-

lar whether the pipes, heater vanes and header pipes,

insulation of conductors of the mixing set pump, etc are

in good condition.

If water is used as the heating medium, then the he-ater can be situated only in an indoor environment whe-

re the temperature is maintained above freezing point

(this does not apply for heated air).

Outdoor use is not recommended. It is allowed onlyif antifreeze solution is used as the heating medium

(mostly ethylene glycol solution). However, the tempe-

rature limit of the used actuating mechanism must be

taken into account.

There is no need for individual suspensions to installthe water heaters. The heater can be inserted into the

duct line, but it must not be exposed to any strain or tor-

sion caused by the connected duct line.

Before installation, paste self-adhesive sealing ontothe connecting flange face. To connect individual parts


M8. It is necessary to ensure conductive connection ofthe flange using fan-washers placed on both sides at

least on one flange connection, or use Cu conductor

wiring.

Operating conditions

The heated air must be without solid, fibrous, sticky, ag-

gressive impurities, free of corrosive chemicals or che-

micals aggressive to aluminium, copper and/or zinc.

Maximum allowed operating parameters of heating wa-

ter:

Maximum allowed water temperature .......+130 C

Maximum allowed water pressure ............. 1,6 MPa

Position and Location

When projecting the layout of the heater location, we

recommend observing the following principles:

If water is used as the heating medium then the hea-ter can be situated only in an indoor environment where

the temperature is maintained above freezing point (this

does not apply for heated air).

Outdoor use is allowed only if antifreeze solution isused as the heating medium (mostly ethylene glycol

solution). However, the temperature limit of the used

actuating mechanism must be taken into account.

Water heaters can work in any position in which air-venting of the heater is possible.

Free access to the heater must be ensured to ena-ble control and service.

An airfilter must be installed in front of the heater toavoid its fouling.

The counter-current connection of the heater is nee-ded to achieve maximum output.

The heater can be situated either in front of or be-

hind the fan. However, if the heater is in front of the fan,the heater output must be controlled so that the air tem-

perature will not exceed the maximum allowed value for

the given fan.

If the heater is situated behind the fan, we recom-mend inserting between the fan and the heater a spacer

(e.g. 1-1.5 m long straight duct) to steady the airflow.

Accessories are not included in the heater delivery and

must be ordered separately.

Air-Venting of the Heater

To ensure proper operation of the heater, it is necessary

to install reliable air-venting, the best being automatic.The TACO automatic air-venting valve with outer G1/2"

thread is designed to be screwed directly into the heater

header pipe. It must be installed on the very top of both


header pipes. Thanks to its small dimensions, it is sui-

table when using the heater just below the ceiling. The

heater can be vented either manually or automatically.

With regard to the fact that the heater is mostly installed

in places difficult to access, at height or on ceilings, au-

tomatic air-venting is a necessity. The TACO automatic

air-venting valve with outer G1/2" thread (see fig. #31)

is designed to be screwed directly into the heater hea-

der pipe. It is installed on the very top of both header pi-

pes. Maximum allowed operating parameters of heating

water:

Maximum operating water temperature ..... 115 C1)

Maximum operating water pressure ...........0,85 MPaMinimum operating water pressure ........... 20 kPa

Thread

Valve head

Figure 31 TACO air-venting valve

The valve must be installed in the vertical position or

aslant with its head upwards, respectively horizontally;

by no means downwards!

Minimum water pressure in the system ensures that

even if the pressure in the intake part of the mixing set

drops, the air-venting valve will not take up air into theoutlet heater header pipe.

Warning! The following antifreeze solutions can be

used as heating media:

water and ethylene glycol (Antifrogen N)

water and 1.2 - ethylene glycol (Antifrogen L)

They enable the freezing temperature of the heating

media to be dropped depending on the solution concen-

tration. Other antifreeze agents can be used only upon

presenting confirmation of the manufacturer confirming

their compatibility with swelling materials (ring, inserts).

(1 V ppad, e vodn ohva pracuje s vodou o teplot +116 C,ppadn vy, nutno odvzdunn zajistit plovkovm ventilem


22/4022

Water heaters VO



Water heaters can work in any position in which airventing of the heater is possible. The most common

heater positions are shown in figure #34. Positions A,B and C show the most suitable places for the TACO

air-venting valve mounting (marked with arrows). Posi-

tion D shows non-permissible installation of the heater

which does not allow air venting.

The TACO air-venting valves must be installed asshown in figure #32, i.e. vertically (upright) with their

heads up view A, or horizontally view B, by no me-

ans downwards or slanted with their heads down C,

D.

The TACO air-venting valves must be mounted ontothe highest point of the inlet/outlet header pipe (see fig.

#34). The openings in the header pipes have G1/2" in-ner thread and they were closed with plugs in the plant.

The casing of the antifreeze protection NS 130 sen-sor can be mounted on the bottom side of the header

pipe.

To allow faster air venting while filling the systemwith water, loosen the knurled screw on the TACO valve

by one or two turns. Afterfinishing the filling of the sys-

tem, tighten the knurled screw firmly, and the valve will

then work automatically.

During the first air venting, a couple of water dropscan leak through the air-venting valve. This will not hap-

pen again during normal operating conditions.

When cleaning the TACO valve inside, it is necessa-ry to replace the swelling parts (rings and inserts). The

TACO valve is equipped with a back valve so there is

no need to drain the heater.

When connecting the mixing set hoses, thermal sen-sor NS 130 casing, or air-venting valve, be careful.

Do not use excessive force, otherwise the pipes

situated between the header pipes and sidewall of the

heater could be damaged!

An airfilter must always be placed in front of theheater to avoid heater fouling.

The heater can be situated either in front of orbehind the fan. However, if the heater is in front of thefan, the heater output must be controlled so that the

air temperature will not exceed the maximum allowed

value for the given fan.

If the heater is situated behind the fan, we recom-mend inserting a 1-1.5 m long straight duct between

the fan and the heater to calm the airflow down.

The counter-current connection of the heater isneeded to achieve maximum output (see fig. #35). The

concurrent connection provides lower output, but it is

Manual Vento

Documents

Transcript of Manual Vento