LG THERMA V AHNW16606B0, Installation Manual, Page: 29 / 65

Installation of Indoor Unit
Installation Manual 29
ENGLISH
MARK CHARACTERISTICS MARK CHARACTERISTICS
Closing valve Manometer
Circulation pump Temperature sensor
Closing valve with exhaust Thermometer
Drain valve with plug Consumer of heat / coolness
Water filter Automatic vent
Expansion vessel 3-way switching valve with EM drive
Safety valve
M
3-way mixing valve with EM drive
Non-return valve Supply pipe
Magnetic separator of impurities Return line
Pipe safety thermostat
ELEMENTS
CONNECTING
TERMINALS
MARK CHARACTERISTICS
1 Return for heating
2 Supply pipe for heating
PLC Processing unit
PST Pipe safety thermostat
Spatial Connector on PLC
Q1-Q12 Digital outputs of regulation ~ 230 V (input/output module MD1 and MD2)
A1-A8 Analogue input (input/output module MD1 and MD2)
D1-D9 Digital input (input/output module MD1 and MD2)
MD1 Basic input/output module 1
T1 Thermostat of heating cycle 1
T2 Thermostat of heating cycle 2
OC1 Circulation pump of heating cycle 1
OC2 Circulation pump of heating cycle 2
MV2 Mixing valve of heating cycle 2
OGK-1 Heating cycle 1
OGK-2 Heating cycle 2
MD2 Expansion input/output module 2
T3 Thermostat of heating cycle 3
T4 Thermostat of heating cycle 4
OC3 Circulation pump of heating cycle 3
OC4 Circulation pump of heating cycle 4
MV3 Mixing valve of heating cycle 3
MV4 Mixing valve of heating cycle 4
OGK-3 Heating cycle 3
OGK-4 Heating cycle 4
The supply line of each heating cycle must be fitted with a pipe safety thermostat that is connected
sequentially with the circulation pump to safeguard against the inflow of high temperature.