background image

ADVANCED SETUP

STOP FAN WITH 0...10V

2ND 0...10 CONTROL SIGNAL

CONSTANT PRESSURE
SOFT STOP
START TORQUE

ADVANCED SETUP

STOP FAN WITH 0...10V

2ND 0...10 CONTROL SIGNAL
CONSTANT PRESSURE
SOFT STOP
START TORQUE

ADVANCED SETUP

2ND 0...10 CONTROL SIGNAL
CONSTANT PRESSURE

STOP FAN

START TORQUE
DEACTIVATE SOFTSTOP

ADVANCED SETUP

CONSTANT PRESSURE
STOP FAN

START TORQUE

DEACTIVATE SOFTSTOP
TEMPERTURE

ADVANCED SETUP

CONSTANT PRESSURE
DEACTIVATE SOFTSTOP

TEMPERATURE

BOOST
POST VENTILATION

ADVANCED SETUP

23

22

Operation and maintenance instructio

ns – CLASS UNIT TAC5

Operation and maintenance instruction

s – CLASS UNIT TAC5

5.1.4 ADVANCED SETUP

N.B.! The appearance and content of this menu var-

ies depending on the type of air handling unit and 

functions and/or options selected. A code and a 

special training are needed to access this menu.

Attention: 

The settings range for most of the 

functions is defined for maximal flexibility. The 

factory setting is the advised setting, deviating 

from this setting requires carefull considera-

tion. 

Stop fan with 0...10V

Function only availalbe if “demand control” function has been selected 

in basic setup. With this function, the fans can be stopped if the 0...10V 

control signal is below or above a specified setpoint. The control signal is 

connected to the analogue input K2.

Setting

Settings

range

Factory

setting

Stop if <Vlow

No

Yes

Yes

Vlow

0...10V

0,8V

Stop if >Vhigh

No

Yes

Yes

Vhigh

0...10V

10,0V

 

Second 0...10V control signal

Function only availalbe if “demand control” function has been selected 

in basic setup. With this function, a separate 0...10V control signal for 

the extract air can be activated.  The control signal is connected to the 

analogue input K3.

Setting

Settings

range

Factory

setting

0...10V on K3?

No

Yes

No

Control

Exhaust 

Supply

Exhaust

Stop fan when pressure alarm

Possibility to stop the fans automatically in case of a pressure 

alarm.

Setting

Settings

range

Factory

setting

Stop fans

No

Yes

No

Start torque

Possibility to change the fans’s starting torque.

Setting

Settings

range

Factory

setting

Start Torque

0...100%

2%

 

Deactivate softstop

With this function, the “OFF” function is deactivated.

Setting

Settings

range

Factory

setting

Softstop

Yes

No

No

Temperature

In this menu advanced temperature control parameters can 

be modified. 

Supply air 

involves keeping a constant supply air temperature 

without consideration to the load in the premises. 

Extract air 

involves keeping a constant temperature in the 

extract air duct (premises), by modulating the supply air 

temperature. 
The reaction speed of capacity control signal can be modified. 

A higher Setting will result in a smoother control; a lower Set-

ting will result in a faster reaction speed. but also greater risc 

of oscillations. 

Setting

Settings

range

Factory

setting

Supply or Extract tempe-

rature control?

Supply

Extract

Supply

Reaction speed

1...10

1

Supply air, min

0...20°C

15,0°C

Supply air, max

16...50°C

28,0°C

Stop fan if T°Supply <5°C

No

Yes

No

Содержание CLASS UNIT 1000

Страница 1: ...Operation and maintenance instructions CLASS UNIT Applicable to program versions TAC5...

Страница 2: ...and maintenance instructions CLASS UNIT TAC5 1 0 Safety precautions 2 0 Product Overview 3 0 Wiring Overview 4 0 Functions 5 0 Commissioning 6 0 Preventive maintenance 7 0 Troubleshooting 8 0 Paramete...

Страница 3: ...nit should always be operated with closed doors and panels If the unit is installed in a cold place make sure that all joints are covered with insulation and are well taped Duct connections duct ends...

Страница 4: ...TAC5 DG circuit fac tory pre wired 2 Supply fan 3 Exhaust fan 4 Air Air heat exchanger modulating 100 by pass 5 Drain pan COMPONENTS CLASS UNIT 6 GF ePM10 50 filter at fresh air inlet 7 GF ePM10 50 f...

Страница 5: ...ay 1 SAT3 PRESSURE ALARM T3 to outdoors T sensor prewired O R 2 output relay 2 SAT3 FAN ON O R 3 output relay 3 SAT3 HEATING DEMAND OUTPUT T5 supply T sensor for KWout coil prewired O R 4 output relay...

Страница 6: ...lation system such as blocking of air terminals and dust accumulating in filters causes the fans to run at a higher speed This results in higher power consumption and may also cause discomfort in the...

Страница 7: ...the setpoint AFn In pressure control mode the supply air pressure will modulate between 100 and 50 AFlow of the setpoint AFn If the exhaust air temperature T3 is 1 C the supply air fans will stop unt...

Страница 8: ...and high and as a fourth position the unit is switched off 5 1 COMMISSIONING WITH TACtouch INTERFACE The hand held terminal consists of a 4 3 touch screen with a 1 5 metre long cable for connection to...

Страница 9: ...tion The system is preset for automatic changeover between summer time winter time accord ing to EU Standard 5 1 2 MAIN MENU The main menu consists of a rotary menu with 6 icons Control The control me...

Страница 10: ...e air handling unit is started up for the first time the commissioning menu is automati cally displayed At the very end of the commis sioning menu the commissioning of the unit has to be confirmed by...

Страница 11: ...he desired setpoint is preset in l s m h The sleep factor is a lower operating rate for the unit due to e g low occu pancy that will be activated by speed III Setting Range Factory setting Vmin 0 10V...

Страница 12: ...10V 0 8V Stop if Vhigh No Yes Yes Vhigh 0 10V 10 0V Second 0 10V control signal Function only availalbe if demand control function has been selected in basic setup With this function a separate 0 10V...

Страница 13: ...sec 90sec Internal coils Electrical postheating coil The electrical postheating coil is installed and configured in factory The electrical postheating coil will always have its separate power supply a...

Страница 14: ...low Fan 1 Pressure Fan 1 Flow Fan 2 Pressure Fan 2 Flow Fan 3 Pressure Fan 3 Flow Fan 4 Pressure Fan 4 Torque Fan 1 Torque Fan 2 Torque Fan 3 Torque Fan 4 Pressure Fan 1 Attention before handling and...

Страница 15: ...ED s on control board Alarm on user interface Alarm communication with networking modules provided that an optional communication module Modbus RTU MODBUS TCP IP and KNX is installed on the TAC contro...

Страница 16: ...e pressure Supply air flow not reached P 25 Initialisation of the reference pressure Extract air flow not reached P 26 Initialisation of the reference pressure Supply air flow too high Min limit of th...

Страница 17: ...the running hours feature must be enabled in advanced setup Causes SERVICE ALARM the fan operating time in hours has exceeded the configurable threshold STOP FAN the fan operating time in hours has e...

Страница 18: ...relay O R 1 LED ALARM LED AF Fans Alarm status ON Manual reset mandatory Conditions Only with post heating option Causes The comfort T setpoint cannot be reached actual T lower than setpoint during 15...

Страница 19: ...mon reason for this is a damaged position sensor on the bypass actuator and this must be replaced Other reasons may be that the control board output is damaged implying the replacement of the board or...

Страница 20: ...Airflow O Demand control O Constant Torque O Constant pressure 3 Constant Airflow K1 O m h O l s K2 O m h O l s K3 O m h O l s 4 Constant Torque K1 Torque K2 Torque K3 Torque 5 Demand control Vmin V V...

Страница 21: ...42 EC LVD included Complies also with applicable requirements of the following EC directives 2014 30 EU EMC 2009 125 EC Ecodesign Regulation nr 1253 2014 LOT 6 2011 65 EU RoHS 2 including amendment 2...

Страница 22: ...Version 20220725 We reserve the right for changes...

Отзывы: