Energie INVERTER 4/12, Installation And Instruction Manual

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ENERGIE Page | 51
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20.1 Cooling/ Heating circuit
A
Compressor LP Low pressure switch
B
Heat exchanger HP High pressure switch
C
Electronic expansion valve SUT Suction temperature probe
D
Evaporator ET Exhaust temperature probe
E
4-way valve CT Coil Temperature probe
F
Filter EEV EEV temperature probe
20.2 Wiring diagrams
AT
Ambient temperature
TC
Transformer
COMP Compressor K2 Relay of fan motor
CT Coil temperature K3 Relay of water pump
ET Exhaust temperature R1 Auxiliary relay
TOT
Outlet Water temperature
MT
Timer delay
IT Inlet water temperature LP Low pressure protection
4V 4 way valve HP High pressure protection
FM Fan motor L or F Phase
FS Flow switch N Neutral
SUT
Suction temperature
T Earth
Output 1 3 way valve EEV Electronic expansion valve
MODE
Heating / Cooling selector (voltage
free contact).
ON/OFF
Room thermostat (voltage free
contact).
T-AC
Room thermostat (voltage free
contact).
T-AQS
Domestic hot water thermostat
(220-240V~ contact).
20.3 Hydraulic schemes
1 Shutoff valve 10 Pressure reducing valve
2 Filling valve A Water inlet (central heating)
3
Safety valve
A1
Cold water inlet (DHW)
4 Expansion vessel B Hot water outlet (DHW)
5 Filter C
Central heating (radiators, floor heating
or fan coils)
6 Valve (non-return) BT Buffer tank
7
Water tank (DHW)
P1
Water circulator
8 3 way valve T1 Room thermostat
9 Automatic air vent T2 DHW thermostat