4
3 COMPOSITION
The C
ONNECT
2 control module consists of:
► One control and display panel fitted on the unit.
► One non-reversible circuit = one main board.
► One reversible circuit = one main board + one additional board (No. 1) → rotary switch in position 1.
► Two non-reversible circuits = one main board + one additional board (No. 2) two circuits → Rotary switch in position 1.
► Two reversible circuits = one main board + one additional board (No. 2) two circuits → Rotary switch in position 1.
+ one additional board (No. 2), two circuit changeover
→ Rotary switch in position 2.
► One auxiliary electric heater control board = additional board 1 → Rotary switch in position 2 (optional, ILD range).
► One remote console (optional).
► One relay board for operating states and faults (optional).
3.1 Main control board for machines with one non-reversible refrigerating circuit
SWITCH W3
End-of-line resistance for two-wire RS-485 link. The switch must
be turned to the left for the last unit on the loop and to the right for
the others.
TERMINAL BLOCK J2
(analogue outputs)
1-2 0-10 V output 1 two-way valve or three-way valve if unit type
(P2) = water-to-water.
or circuit 1 fan speed if unit type (P2) = air-to-water
or reversible air-to-water when P10 = centrifugal.
or air damper control if unit type (P2) = air-to-water
or reversible air-to-water when P10 = centrifugal and P20 = yes.
3-4 0-10 V output 2 (Compressor I
NVERTER
if P7 = I
NVERTER
)
4-5 0-10 V output 3 (variable speed pumps).
TERMINAL BLOCK J3
(on/off inputs)
1 Stage control common
2 Stage 1, circuit 1 control
3 Stage 2, circuit 1 control
or if P7 = I
NVERTER
(compressor shut off order to driver)
4 Common for fans, heater and heat trace cable
5 Circuit 1, fan 1 control (and circuit 2 if intertwined coil)
6 Circuit 1, fan 2 control (and circuit 2 if intertwined coil)
7 Heater control
8 Heat trace cable control
9-10 Configurable control based on P111:
- Max. power
- Boiler
- Cooling/Heating
11 Fault output common
12 NC contact for fault output
13 NO contact for fault output
14 Common for pumps
15 Pump 1 control
16 Pump 2 or reversing valve control, circuit 1
TERMINAL BLOCK J4
(power supply)
1 230 V board power supply - Line
2 230 V board power supply - Neutral
3 Earth
TERMINAL BLOCK J5
(on/off inputs)
1-2 Motor fault, stage 1, circuit 1
2-3 Motor fault, stage 2, circuit 1
4-5 Manual reset fault, HP, circuit 1
5-6 Expansion valve fault, circuit 1
7-8 Phase controller fault
8-9 Water flow fault
10-11 Pump 1 fault
TERMINAL BLOCK J6
(on/off inputs)
1-3 Pump 2 fault
2-3 Automatic operation control
4-6 Setpoint 1/setpoint 2 selection
5-6 Heating/cooling selection if unit type (P2) = water-to-water
or fan fault if unit type (P2) = air-to-water
or reversible air-to-water
7-9 Stage 1, circuit 1 load shedding control
8-9 Stage 2, circuit 1 load shedding control
10-11 Recovery control
TERMINAL BLOCK J7
(analogue inputs)
1-2 10 K outdoor temperature sensor
2-3 10 K water inlet temperature sensor, heat exchanger 1
4-5 10 K water outlet temperature sensor, heat exchanger 1
5-6 10 K hot water temperature sensor if unit type (P2) = water-to-water
or exchanger amb. temp. if unit type (P2) = air-to-water
or reversible air-to-water
7 +24 V power supply for pressure sensors
8 0-10 V input for water inlet sensor on circuit 1
9 0-10 V input for water outlet sensor on circuit 1
10 Common for pressure sensors
11 4-20 mA remote setpoint
12 Setpoint common
Содержание Magister 2 Series
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