44
14.3. Connection of the Basic c.pCOe expansion modules to the control board (optional)
14 - CONECTIONS
Basic c.pCOe module with address 8:
This module is needed to manage the options:
Low outdoor temperature (GREAT COLD).
Remote COOLING / HEATING.
Mechanical disconnection of stages.
Proportional humidifi er or overpressure control with exhaust
damper.
Active dehumidifi cation with condensation coil.
Unit with 100% fresh air.
Analog inputs
U1: remote COOLING / HEATING
U2: ventilation mode with 100% fresh air
U3: temperature probe on the HWC inlet with GREAT COLD
U4: temperature probe on the HWC outlet with GREAT COLD
Digital inputs
U5: disconnection of 1 compressor stage or alarm signal or pump
in the hot water coil circuit or compressor in the recovery circuit
or on-o humidifi er or rotary heat exchanger
U6: disconnection of 2 compressor stages
U7: disconnection of 4 compressor stages
U8: disconnection of electrical heaters
Analog output
U9: proportional humidifier or exhaust damper or control of
proportional 3WV of the condensation coil with actve
dehumidifi cation
Digital outputs
NO1: electical heating for the piping layout of the water circuit with
GREAT COLD or confi gurable output (humidifi er, HWC pump,
general alarm, rotary heat exchanger, Preheater in fresh air for
units with active dehumidifi cation, compressor OFF by timing
of crankcase heater, free-cooling ON on bypass damper of
the rotary heat exchanger)
NO2: compressor with supplementary crankcase heater or
ventilation mode with 100% fresh air
NO3: electrical heater for protection of fresh air damper or solenoid
valve SV1 with actve dehumidifi cation
NO4: confi gurable output (same outputs as NO1) or solenoid valve
SV2 with actve dehumidifi cation
Connection to μPC3 board
J9: connection on Fieldbus1
Power supply
J1: 24 Vac
Basic c.pCOe module with address 9:
This module is needed to manage the options:
Second air quality probe (CO
2
) for installation in the environment
or outdoor.
Preheater (electrical heater) in fresh air (for units with 100% fresh
air).
Rotary heat exchanger with variable speed.
Zoning into 2 zones with dampers.
Control of supply and return dampers (external to the unit).
Constant supply pressure control.
Analog inputs
U1: second air quality probe for installation in the environment or
outdoor (4-20mA / 0…5000 ppm) or air quality probe for the
zone 2 (4-20mA)
U2: di erential pressure sensor for constant supply pressure
control
U3: exhaust temperature probe (prop. rotary heat exchanger)
U4: exhaust temperature probe (prop. rotary heat exchanger)
Digital inputs
U5: opening status of the supply damper of zone 1 or the supply
damper external to the unit) or alarm on the thermistors of the
electrical heater for preheating
U6: opening status of the supply damper of zone 2
U7: opening status of the return damper of zone 1 or return damper
external to the unit
U8: opening status of the return damper of zone 2
Analog output
U9: 0...10Vdc output for wheel control (prop. rotary heat exchanger)
or preheater with electrical heater (100% fresh air)
Digital outputs
NO1: opening signal of supply damper of the zone 1 or supply
damper (external to the unit)
or ON/OFF signal of the electrical
heater for preheating
NO2: opening signal of supply damper of the zone 2
NO3: opening signal of return damper of the zone 1 or return damper
(external to the unit)
NO4: opening signal of return damper of the zone 2
Connection to μPC3 board
J9: connection on Fieldbus1
Power supply
J1: 24 Vac
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
19.2 K
9.6 K
38.4 K
57.6 K
CAREL
Modbus
ON
OFF
Address ProtBaud
Address Ext Baud Prot
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
19.2 K
9.6 K
38.4 K
57.6 K
CAREL
Modbus
ON
OFF
ProtBaud
ExtAddress
Ext
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