INSTALLATION & MAINTENANCE
TERMINAL BLOCK INTERFACE
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
LIMITS OF RESPONSIBILITIES
Although FläktGroup has tested and reviewed the
documentation contained in this manual, FläktGroup makes
no warranty, neither expressed nor implied, with respect to
this manual, including its quality, performance, or fitness for a
particular purpose.
FläktGroup shall under no circumstances be liable for direct,
indirect, special, incidental or consequential damage arising
from the use or the inability to use information contained in this
manual. FläktGroup reserves the right to revise this publication
at any time and to make changes to its content without prior
notice and has no duty to provide notice to previous or current
owners with respect such revisions or changes.
PROCEDURE
1. Identify components supplied separately against the enclosed bill of
materials.
2. Connect the power and signal wiring to adjacent blocks,
see page 20.
3. Connect the control unit, see instructions on page 10–14.
4. Connect sensors, actuators and accessories, see pages 21–30.
5. Connect the incoming supply, see pages 4,16–19.
6. Switch on the power.
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
CONTENTS
PROCEDURE .............................................................................................2
CONTROL PANEL .....................................................................................4
EXTERNAL PLACEMENT OF CONTROL UNIT...................................5
EXTENDED MULTICABLE ......................................................................5
PLINT INTERFACE ....................................................................................6
INSTALLATION OF CONTROL UNIT ....................................................10
ELECTRICAL CONNECTIONS, NORWAY .......................................... 15
CONNECTION, ENERGY ANALYSER .................................................16
POWER CONSUMPTION EQ................................................................ 17
CONNECTION OF SENSORS AND ACCESSORIES .......................18
ELECTRICAL CONNECTION OF UNITS IN BLOCKS .......................19
CONNECTION BOARD .......................................................................... 20
TEMPERATURE SENSOR .....................................................................21
PRESSURE/FLOW SENSOR ............................................................. 22
CONFIGURATION OF SENSOR .......................................................... 23
ZERO POINT CALIBRATION ................................................................ 23
CO2 SENSOR............................................................................................24
DAMPER ACTUATORS......................................................................... 25
FILTER MONITORS ................................................................................ 25
FAN MONITORS ..................................................................................... 25
TIMER, PUSH BUTTON, MOTION DETECTOR
AND CO2 MONITOR ............................................................................... 26
CO2 MONITOR ......................................................................................... 26
MOTION SENSOR ...................................................................................27
PERMISSIBLE MOUNTING METHODS............................................. 28
FROST PROTECTION SENSOR .......................................................... 28
ELECTRIC HEATERS ............................................................................ 29
CONNECTION OF DUCT-MOUNTED ELECTRIC HEATER ............ 30
OUTPUT AND CURRENT FOR ELECTRIC HEATERS ..................... 31
MINIMUM FLOWS FOR DUCT-MOUNTED
ELECTRIC HEATER ............................................................................... 32
MINIMUM FLOWS FOR AIR HANDLING
UNIT-MOUNTED ELECTRIC HEATER ............................................... 32
ECONET® ................................................................................................. 33
QUESTIONS AND ANSWERS .............................................................34
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Fig. 1
1
2
11
3 a
3 b
7
8
9
6
5
12 1013
18
14 16
17 15 20 2119
4
ELECTRICAL CONNECTIONS AND CURRENTS
Connect the incoming supply to earth (1), neutral terminal block 3 b
and phases L1, L2 and L3 to terminal block group 3 a (see the figure
above) in the control panel. If the STAZ-81 energy analyser has been
selected, connect the incoming supply directly to the energy analyser
(see page 18) Connect the protective earth directly to the earthing bar,
1, (see the figure above). Tighten incoming terminal blocks 3a and b
and earthing bar 1 after connection. Each incoming supply must be
provided with a manually operated lockable main circuit breaker/
load interrupter confirming to Machinery Directive 2006/42/EC and
Standard SS-EN 60204-1 Electrical equipment of machines.
The load interrupter is available as an accessory (STAZ-80). The
safety circuit breaker is available as a motor accessory (APAC).
Protect the incoming power supply of the air handling unit with a
fuse in accordance with current legislation in the country where the
equipment is installed.
1. Earthing bar
2. Transformer
3. Incoming supply, 7,5 kW - 15 kW
a. Connecting phases
Tightening torque: 2,5 - 3,0 Nm
b. Connecting neutral
Tightening torque: 3,2 - 3,7 Nm
CONTROL PANEL
4. Internal operation (red switch)
5. Power supply, air handling unit loads, 3-phase.
6. Air handling unit load short-circuit protection
7. Vertical mounting plate with DIN rail
8. Mounting plate with DIN rail
9. Earthing cable for mounting plate
10. Connection of multiconductor cable
11. Terminal block for connection with eQ cables
12. 24 VAC, also supply to internal DUC 24 VDC
13. Terminal block for selection of supply neutral.
Supplied with jumpers between G0 and PE
14. Control panel electrical supply
15. 230 VAC supply
16. Connection, transformer
17. Connection of thermostat-controlled thermal film
18. Supply to rotary heat recovery unit
19. Glass tube fuse
24 VDC max 1.6A T
24 VAC max 4A T
20. Connect the power supply for G and G0 for the eQ to INPUT.
Internal DUC: Jumper between LOCAL and INPUT (supplied design)
External DUC: Supply of G and G0 from external cabinet to INPUT.
21. Selection of functions on terminal blocks 34 and 42.
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
EXTERNAL PLACEMENT OF CONTROL UNIT
When Twin Wheel and preheater are ordered for eQ, these
functions should be connected to the connection board indicated
above. See table on pages 10–11.
The plint interface solution is designed so that the control unit can be
installed either in the control panel or in an external cabinet. When the
control unit is installed and powered externally, the jumper between PE
and G0 must be removed on the connection board, see page 6 pos 13.
In the external cabinet, G0 must be connected to earth to prevent G0
from floating relative to earth.
In addition, the jumpers between terminal blocks INPUT and LOCAL,
page 6 pos. 12 and 20, should be disconnected and replaced with
signals G and G0 from the external cabinet to the INPUT terminal block.
When cables are routed from an external control unit, terminal blocks
EXTENDED MULTICABLE
15–34 should be routed in screened multiconductor cable of their own,
which should be kept separate from other signals. The screen should
only be earthed in the external cabinet, and should be left unconnected
in the junction box to prevent earth currents in the screen. Signals 1–14
and 35–44 can be placed together in a multiconductor cable.
Minimum cross section of the multiconductor cable to the external
control unit: 0.75 mm
2
. The control unit must be located at a maximum
distance of 100 m.
6
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
PLINT INTERFACE
Please note:
Common reference M internally for analogue inputs and analogue outputs.
All digital inputs are potential-free with user-selectable reference selected in DIG.IN REF, supplied design 0V/G0.
User-selectable resistance sensors: PT1000/NTC 1.8kOhm/NTC 20 k Ohm.
* Only applies to electric heaters; others are NO.
eQ
DUC
24V
0V/G0
M
-
+
M
eQ
Y
DUC MY
-+
Digital outputs
Terminal blocks 1–14
1–10: Controlled 24 VDC
11–14: Controlled 24 VAC
Analogue outputs
Terminal blocks 15-23
DUC
Terminal
block 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 23 24 25 26 39 40 41 43 Terminal
block
Function Signal
eQ Start TF1 24VDC Start FF1 24VDC 2-speed 24VDC Start
heating 24VDC Start
cooling 24VDC Control
Signal TF1
Control
Signal
FF1
M
Heating
control
signal
Cooling
control
signal
M
Recycling
control
signal
Mixing
control
signal ST3
MFlow
sensor GF1
Flow
sensor GF2 MAlarm,
recovery
Alarm,
heater
Alarm,
cooler
Dig.
In
Ref.
Signal
eQ Function
Heater Start
24VDC 24VDC 0-10VDC MPotential-
free, NC*
Dig.
In
Ref.
Heater
Rotary heat exchanger 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Rotary heat
exchanger
Plate heat exchanger 0-10VDC MPlate heat
exchanger
Evaporative humidifier Start
24VDC 24VDC Potential-
free, NO
Dig.
In
Ref.
Evaporative
humidifier
Cooler Start
24VDC 24VDC 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Cooler
ReCooler Start
24VDC 24VDC 0-10VDC M0-10VDC MPotential-
free, NO
Dig.
In
Ref.
ReCooler
Reversibel Cooler Start
24VDC 24VDC 0-10VDC 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Reversibel Cooler
Combi Cooler Start
24VDC 24VDC 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Combi Cooler
Mixing damper 0-10VDC MMixing damper
Supply air fan Start
24VDC 24 VDC 0 -10VDC MSupply air fan
Exhaust air fan Start
24VDC 24 VDC 0-10VDC MExhaust air fan
Flow sensor, supply air 0-10 VDC MFlow sensor,
supply air
Flow sensor, exhaust air 0-10 VDC MFlow sensor,
exhaust air
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
PLINT INTERFACE
eQ
eQ
YMMB
-
=
+
DUC
DUC
eQ
DUC
DIG.IN REF LARM
Digital inputs
Terminal blocks 35-44
Terminal block
DIG.IN REF is reference
for digital inputs.
Analogue inputs
Terminal blocks 24-34
24-26: 0-10 VDC
27-34: Resistive
DUC
DUC DUC
Terminal
block 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 23 24 25 26 39 40 41 43 Terminal
block
Function Signal
eQ Start TF1 24VDC Start FF1 24VDC 2-speed 24VDC Start
heating 24VDC Start
cooling 24VDC Control
Signal TF1
Control
Signal
FF1
M
Heating
control
signal
Cooling
control
signal
M
Recycling
control
signal
Mixing
control
signal ST3
MFlow
sensor GF1
Flow
sensor GF2 MAlarm,
recovery
Alarm,
heater
Alarm,
cooler
Dig.
In
Ref.
Signal
eQ Function
Heater Start
24VDC 24VDC 0-10VDC MPotential-
free, NC*
Dig.
In
Ref.
Heater
Rotary heat exchanger 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Rotary heat
exchanger
Plate heat exchanger 0-10VDC MPlate heat
exchanger
Evaporative humidifier Start
24VDC 24VDC Potential-
free, NO
Dig.
In
Ref.
Evaporative
humidifier
Cooler Start
24VDC 24VDC 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Cooler
ReCooler Start
24VDC 24VDC 0-10VDC M0-10VDC MPotential-
free, NO
Dig.
In
Ref.
ReCooler
Reversibel Cooler Start
24VDC 24VDC 0-10VDC 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Reversibel Cooler
Combi Cooler Start
24VDC 24VDC 0-10VDC MPotential-
free, NO
Dig.
In
Ref.
Combi Cooler
Mixing damper 0-10VDC MMixing damper
Supply air fan Start
24VDC 24 VDC 0 -10VDC MSupply air fan
Exhaust air fan Start
24VDC 24 VDC 0-10VDC MExhaust air fan
Flow sensor, supply air 0-10 VDC MFlow sensor,
supply air
Flow sensor, exhaust air 0-10 VDC MFlow sensor,
exhaust air
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Terminal
block 11 12 13 14 27 28 29 30 31 32 33 34 35 36 37 38 42 43 44 Terminal
block
Function Signal
eQ ST2 GST1 GGT1 GT3 MGT5 MGT12 MGT4/GT11* GP1 GP2 GP3 GP4 GP7* Dig. In Ref 0V Signal
eQ Function
Supply air temperature Resistance MSupply air temperature
Exhaust air temperature Resistance MExhaust air temperature
Outdoor temperature Resistance MOutdoor temperature
Frost protector Resistance MFrost protector
Exhaust air temperature
cold corner sensor MResistance Exhaust air temperature/
cold corner sensor
Efficiency sensor, supply air MResistance Efficiency sensor, supply air
Outdoor air damper Start
24VAC GOutdoor air damper
Extract air damper Start
24VAC GExtract air damper
Exhaust air damper Start
24VAC GExhaust air damper
Return air damper Start
24VAC GReturn air damper
Filter monitor, supply air Potential-free,
NO
Dig. In
Ref. Filter monitor, supply air
Filter monitor, exhaust air Potential-free,
NO
Dig. In
Ref. Filter monitor, exhaust air
Fan monitor, supply air Potential-free,
NO***
Dig. In
Ref. Fan monitor, supply air
Fan monitor, exhaust air Potential-free,
NO***
Dig. In
Ref. Fan monitor, exhaust air
Frost guard, rotor Potential-free,
NC
Dig. In
Ref. Frost guard, rotor
* Z input several functions share the connection/signal cable.
** Only applies to electric heaters; others are NO.
*** Alarm function NO, contact function sensor NC.
Terminal block,
extended multicable 1 2 3 4 5 10 16 17 24 1 2 3 4 8 25 26 27 28 Terminal block,
extended multicable
Function Signal
eQ GG0 24VDC M
Control
signal,
preheater
Alarm,
preheater
Preheater
temperature
sensor
Frost protection
sensor,
preheater
Start signal,
preheater GG0 24VDC MSetpoint, Twin
Wheel
External heater
Twin Wheel
A alarm
Twin Wheel
Start signal
Twin Wheel
B alarm
Twin Wheel
Signal
eQ Function
Supply air temperature
preheater MResistance Supply air temperature
pregeater
Electric preheater G0 0-10 VDC
Alarm
potential-
free, NC
24VDC start G0 Elektric preheater
Frost protector
water G0
Alarm
potential 0V,
NC
G0 Frost protector
water
Twin Wheel G***** 0-10 VDC
****
Potential
0V or 24VDC/
VAC*****
Alarm potential
OV or 24VDC/
VAC*****
0V/M start
Alarm potential
OV or 24VDC/
VAC*****
Twin Wheel
Frost protector
preheater MResistance MFrost protector
preheater
**** Value is set in Twin Wheel
***** Required alarm level is connected to the relay in Twin Wheel control cabinet. See wiring.
PLINT INTERFACE
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Terminal
block 11 12 13 14 27 28 29 30 31 32 33 34 35 36 37 38 42 43 44 Terminal
block
Function Signal
eQ ST2 GST1 GGT1 GT3 MGT5 MGT12 MGT4/GT11* GP1 GP2 GP3 GP4 GP7* Dig. In Ref 0V Signal
eQ Function
Supply air temperature Resistance MSupply air temperature
Exhaust air temperature Resistance MExhaust air temperature
Outdoor temperature Resistance MOutdoor temperature
Frost protector Resistance MFrost protector
Exhaust air temperature
cold corner sensor MResistance Exhaust air temperature/
cold corner sensor
Efficiency sensor, supply air MResistance Efficiency sensor, supply air
Outdoor air damper Start
24VAC GOutdoor air damper
Extract air damper Start
24VAC GExtract air damper
Exhaust air damper Start
24VAC GExhaust air damper
Return air damper Start
24VAC GReturn air damper
Filter monitor, supply air Potential-free,
NO
Dig. In
Ref. Filter monitor, supply air
Filter monitor, exhaust air Potential-free,
NO
Dig. In
Ref. Filter monitor, exhaust air
Fan monitor, supply air Potential-free,
NO***
Dig. In
Ref. Fan monitor, supply air
Fan monitor, exhaust air Potential-free,
NO***
Dig. In
Ref. Fan monitor, exhaust air
Frost guard, rotor Potential-free,
NC
Dig. In
Ref. Frost guard, rotor
Terminal block,
extended multicable 1 2 3 4 5 10 16 17 24 1 2 3 4 8 25 26 27 28 Terminal block,
extended multicable
Function Signal
eQ GG0 24VDC M
Control
signal,
preheater
Alarm,
preheater
Preheater
temperature
sensor
Frost protection
sensor,
preheater
Start signal,
preheater GG0 24VDC MSetpoint, Twin
Wheel
External heater
Twin Wheel
A alarm
Twin Wheel
Start signal
Twin Wheel
B alarm
Twin Wheel
Signal
eQ Function
Supply air temperature
preheater MResistance Supply air temperature
pregeater
Electric preheater G0 0-10 VDC
Alarm
potential-
free, NC
24VDC start G0 Elektric preheater
Frost protector
water G0
Alarm
potential 0V,
NC
G0 Frost protector
water
Twin Wheel G***** 0-10 VDC
****
Potential
0V or 24VDC/
VAC*****
Alarm potential
OV or 24VDC/
VAC*****
0V/M start
Alarm potential
OV or 24VDC/
VAC*****
Twin Wheel
Frost protector
preheater MResistance MFrost protector
preheater
Alarm Potential in the preheater is always 0V (G0), regardless of manufacturer on the controller. When the alarm potential of the connected controller
is 24VDC or G and Twin Wheel is connected must 24VDC or G be connected to switching cards for extended multicable. Access Cards for extended
multicabling serves on the Twin Wheel with the same terminal signals. Connection of alarm potential against the controller in the Twin Wheel may
be needed to be done, see the wiring diagram for Twin Wheel. Terminals 1-4 are feeding system voltages for extended multicabling. For the internal
located control unit, these signals are taken from the card. For external placed control unit, these terminals are fed from an external cabinet.
PLINT INTERFACE
10
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
1. Disconnect the power unit and earth plate.
2. Remove the power unit.
INSTALLATION OF CONTROL UNIT
11
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
3. Disconnect the quick coupler
to the transformer and the eQ
signal cables.
Unscrew the three
screws that keep the mounting
plate in place.
4. Lift up the mounting plate.
INSTALLATION OF CONTROL UNIT
12
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
5. Unscrew the vertical
mounting plate if necessary.
Adjust the DIN rails as
necessary by unscrewing
the screws.
6. Connect your control
unit to one of the DIN rails
where there is room for it.
• Use a DIN rail-mounted
screw terminal block for
external accessories.
• Ideally, the cables should
be routed along the edges
of the plastic enclosure.
INSTALLATION OF CONTROL UNIT
13
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
7. Screw the vertical mounting
plate back into place.
Reconnect the mounting plate
in the control panel.
8. Fix the mounting plate into
place with 3 screws.
Jack the quick connector
from the transformer into
the circuit board.
Press the eQ signal cables,
the multiconductor cables in
the IDC devices in the circuit
board marked TF1 and FF1.
INSTALLATION OF CONTROL UNIT
14
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
9. Replace the power unit and earth plate.
10. Screw the power unit and earth plate into place.
• Install a 4-pole Mate-N-Lock
• Motor protection/start signal pump
• Power cables to the unit
• Earth cable from frame and mounting plate
INSTALLATION OF CONTROL UNIT
15
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Primary (3*230 VAC)
Secondary (3*400 VAC +N)
Fig. 3
ELECTRICAL CONNECTIONS FOR NORWAY
ELECTRICAL CONNECTIONS FOR NORWAY WITHOUT TRANSFORMER,
(3X230 VAC)
The power unit for air handling units intended for a 3x230 V AC power
supply is different in a number of ways to that for a 3x400 V AC power
supply.
They must not be mixed up. The unit is connected in the same way
as on page 4 except there is no neutral conductor (terminal block
13 b page 4). Phases L1-L2 supply the control panel through control
switches.
In this case the blue conductor in the system is not the neutral
conductor but phase L2.
NOTE!
An air handling unit intended for a 3x400 VAC power supply must not
be supplied with power by a
3x230 VAC IT/TT system.
ELECTRICAL CONNECTIONS FOR NORWAY WITH TRANSFORMER,
(3X230 VAC)
The transformer is connected as shown in the figure to the right.
Connect the incoming supply 3x230 V to the primary side and the eQ
(400 V) to the secondary side.
Position the transformer so that it has proper ventilation.
Maximum ambient temperature 40 °C.
16
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Outputs, power unit, kW (3x400 VAC) Area of the internal motor cable, mm2Maximum cable size for the terminal block, mm2
0,55-7,5 2,5 16 (max. 63 A)
11-15 625 (max. 80 A)
Incoming phase
Energy analyser
incoming terminal
block
Energy analyser
outgoing terminal
block
L1 (U) 3 1
L2 (V) 6 4
L3 (W) 9 7
41 42 43
3 6 9
11 1 4 7
CONNECTING THE ENERGY ANALYSER
CABLE DIMENSIONS AND CURRENTS, 0.55 – 15 KW
Fig. 3
Energy meters: Connecting L1 (U), L2 (V) and L3 (W).
Connect neutral (N) and earth (PE) to the specified terminal block.
Tightening torque: 1.7–3 Nm.
To be tightened at the same torque after installation.
FUSE PROTECTION FOR DX-COOLING, ELECTRICAL HEATING AND ECONET IS CARRIED OUT SEPARATELY.
17
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Total excl. pump loads 1 motor
Output
(kW)
3x230 V 3x400 V 3x230 V 3x400 V
Current (A) Current (A) Current (A) Current (A)
0,55 7,6 43,3 1,5
0,75 10,2 5,8 4,6 2,4
1,1 14,2 7,6 6,6 3,3
1,2 –4,6 –1,8
1,5 16 9,2 7,5 4,1
1,7 –6–2,5
2,2 24,6 11,8 11,8 5,4
3 – 14,8 –6,9
3,1 –10,8 –4,9
434,4 18,6 16,7 8,8
5,5 49,4 25 24,2 12
7,5 62,6 32 30,8 15,5
11 –47 –23
15 –63 –31
TYPICAL POWER CONSUMPTION eQ
Note!
The table refer only to frequent streams. For exact power consumption
of fans see Acon data or the engines label.
* The unit is also equipped with a 1-phase circulation pump for
heating, 0,63A and a 3-phase circulation pump for cooling, 2,5A.
When ordering the load interrupter (STAZ-80), specify the total power
consumption.
Total current is calculated in accordance with the example below.
Supply air fan power consumption
+ Extract air fan power consumption
+ Control panel commando approx. 1A
+ Other loads approx. 10 A
= Total power consumption (bbb in STAZ-80)
Exampel:
For a 3x400 V air handling unit with a 7.5 kW supply air fan and
4 kW* extract air fan. The power consumption for each fan can be
read off from the table above.
15,5
+ 8,8
+ 1
+ 0,63
+ 2,5
= 27,93 A
18
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
External components can be easily connected to the eQ unit through
a quick connector or wires to a screw terminal block in the control
cabinet. Then the cable is routed through the cellular plastic strip
on the air handling unit and secured to the adjacent mounting rail.
Remember to place the cables with a suitable diameter. When all
cables have been connected to the terminal block, fit the control panel
cover and secure it using the screws supplied.
CONNECTING THE LIGHTING
The light fittings are connected in the air handling unit at the factory,
and cable is ready routed through the panels to the outside. The power
supply and connection of the lighting for the air handling unit must
be carried out by a qualified electrician. The power supply for the
lighting comes from a lighting switch/junction box for the air handling
unit which is either factory fitted or supplied separately with the unit.
The lighting circuit must be supplied with overcurrent protection in
accordance with SS-EN 60204-1. Connection must be carried out in
accordance with current legislation.
The cellular plastic, which is semi-elastic, will slowly adapt to the
shape of the cables thus sealing the lead-in. The electrician in charge
must ensure that the installation has been done correctly. The following
paragraphs provide information about how to install and connect the
various sensors and accessories.
Fig. 4
Tip: The frame of the control panel can be turned so that the mounting rail faces downwards on outdoor
units and upwards on indoor units where the incoming supply comes via a ceiling mounted cable ladder.
CONNECTING SENSORS AND ACCESSORIES
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FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
When the separate air handling units have been mechanically docked
the blocks must be connected electrical. Connect the signal cables
to the distribution board in the cable trunking or junction box. Connect
the cabling and the screen to the adjacent pins, see the figure below.
Power cables can be disconnected at the delivery with one or more
quick connectors. When installing the unit, the contacts have to be
connected.
Fig. 5
ELECTRICAL CONNECTION OF UNITS IN BLOCKS
20
FläktGroup DC_9028GB 20180316_R0 Specifications are subject to alteration without notice
Installation and maintenance instructions
Terminal block Function
ST1-2-3
Damper actuators
ST1, ST2 (on/off)
ST3 (0-10V)
GF1-2 Flow sensors
GP1-2 Filter monitor
GP3-4 Fan monitor
Z GP7/GT4-11
GP7: Pressure monitor heat exchanger
GT4: Temperature cooled corner/exhaust air
GT11: Temperature air efficiency, supply air
RECOVERY Control signal heat exchanger
GT1 Supply air temperature
GT3 Outdoot temperature
GT5 Antifreeze temperature
GT12 Exhaust temperature
DATA Internal communication bus
(clamp in the control box)
TF1/FF1 Control signal fan
Terminal block Function
24VAC Power Cooler with 24VAC.
0-10V
YC: Control signal cooler 0-10V
YH: Control signal heater 0-10V
YR: Control signal recycler 0-10V
ALARM
Alarm cooler (AC-G0)
Alarm recycler (AR-G0)
In CombiCooler alarm also
(GP3/4-G0 eller Z-G0)
START Start signal Cooler potential free.
Terminal block Function
0-10V Control signal heater (Y-G0)
ALARM Alarm heater (A-G0)
START Start signal heater (C-NO)
START Start signal cooler potential free.
ACCESS CARD
HEATING CARD
From Inspection Side
2011-02-21
2.2.110218.3
Customer id 9902 Project name Sverige EQ
Project 2776 Unit name Cooler
Unit 73 Supply air eQ-050 4.00 m³/sec
AOC ACON-00836444 Exhaust air eQ 050 4.00 m³/sec
COOLING CARD
Heating cardAccess card Cooling card
CONNECTION POINTS ACCESSCARD
Fig. 11
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