A1
Noise suppression fi lter
A2
Plant water pump control board
A3
Condensation fan control board
A4
Electronic control
A5
EEV driver
A6
RS485 serial interface
A7
Supply module
A8
Remote terminal
BP1
Ratiometric cond./evap. pressure probe.
BP2
Low pressure side ratiometric pressure probe
BT1
Inlet water plant temperature sensor
BT2
Outlet water plant temperature sensor
BT3
Compressor suction temperature sensor
E1
Plant water pump
EV1-2
Condensing air fan
F1
Compressor 1 high pressure safety pressure switch
F2
Compressor 2 high pressure safety pressure switch
F3
Low pressure switch
F4
Water differential pressure switch
F5
Flow switch
FU1
TC1 transformer protection fuse
FU2
Auxiliary circuit protection fuse
FU4
Plant water pump protection fuse
FU5
TC2 transformer protection fuse
FU6
PCBs supply protection fuse
GN1
Green light (compressor ON)
KA1
Relè controllo sequenza fasi
KA2
High pressure switch relay
KA3
Load limitation relay
KM1
Compressor 1 contactor
KM2
Compressor 2 contactor
QF1
Refrigerator group circuit breaker
QM1
Compressor 1 circuit breaker
QM2
ICompressor 2 circuit breaker
QM3
Circuit breaker for fan
QS1
Door locking circuit breaker
R1
Compressor 1 crankcase heater
R2
Compressor 2 crankcase heater
R3
Frost heater
RD1
Red warning light (shut-off comp. signal)
SA1
Heating/cooling switch
SA2
Timer and/or on-off switch
SA3
Load limitation switcho
TC1
Insulation transformer
TC2
230/24VAC transformer
YV1
Cycle reversing valve
YV2
Electronic expansion valvea
Z1
Compressor 1
Z2
Compressor 2
1
Switch (optional)
2
0122-0182 models only
3
Heating-cooling switch (optional), for models only cooling clamps 8-9 closed
4
Timer and on-off switch (optional)
5
Heat pump only
6
Optional
7
Pilot lamps (optional)