Cycle Diagram : Internal - LG THERMA V HN0916T Installation Manual

GENERAL INFORMATION
26

Cycle Diagram : Internal

<Refrigerant Side>
S3
S6
S4
EEV1
S2
EEV3
(Inj.EEV)
Description
Category Symbol
S1
S2
S3
S4
S5
Refrigerant
side
S6
S9
S10
EEV1
EEV3
S11
S12
S13
S14
S17
Water Side
A1
A16
A5
A8
: Cooling
: Heating
Pressure
Pressure
Sensor
Switch
Muffler
Accumulator
S1
S5
<Outdoor Unit>
<Inside of the product>
Meaning
Compressor-suction pipe temperature sensor
Inlet IHEX temperature sensor
Outdoor air temperature sensor
Outdoor-HEX temp. sensor
Compressor-discharge pipe temperature sensor
Outdoor-HEX middle temp. sensor
PHEX gas temp. sensor
PHEX liquid temp. sensor
Electronic Expansion Valve (Heating)
Electronic Expansion Valve (Injection)
Inlet water temperature sensor
Outlet water temperature sensor
Electric heater outlet sensor
DHW tank temperature sensor
Flow sensor
Main water pump
DHW Water pump
3Way Valve
Electric backup heater
<Water Side>
Air Vent
S12
Drain/Fill
S17
cock
S9
Flow
Sensor
S10
A1
S11
[PHEX]
DHW
Expansion
Drain pan
vessel
S14
DHW Tank
: Hot Water
: Cold Water
: Domestic Hot Water
: Domestic Cold Water
: DHW re-circulation
Pressure
Gauge Shut-off
Valve
Shut-off
with
Valve
Strainer
A5
S13
A8
Air
Vent
Drain/Fill
cock
Expansion
vessel
Safety
Valve
Safety Valve
Drain/Fill
cock
[DHW PHEX]
A16
DHW Strainer
Drain
<Indoor Unit>
cock
PCB Connector
CN_SUCTION
CN_VI_IN
CN_AIR
CN_C_PIPE
CN_DISCHARGE
CN_MID
CN_PIPE/OUT
CN_PIPE/IN
CN_EEV1(WH)
CN_EEV3(YL)
CN_TH3
CN_TH4
CN_F_METER
CN_MOTOR1
CN_W_PUMP_A
CN_W_PUMP_B
CN_3WAY_A
CN_E_HEAT_A