LG PQNUD1S41 Installation & Owner's Manual page 10

INSTALLATION METHOD
10
• When interlocked to GHP product
- Independent Operation of Power Indicator (interlocked to GHP product)
(00)
(70)
Power cable for 3 phase 4 wire
Power cable for single phase
Communication cable (2 wire shielded cable): Between outdoor unit and central controller
Communication cable (2 wire shielded cable): Between indoor unit and outdoor unit
Pulse signal wire
Refrigerant pipe
Gas pipe
Pulse signal wire(Gas)
CAUTION
!
• Use the wattmeter for remote reading to send pulse signal depending on wattage.
• Use the wattmeter with the pulse width of 50 - 400 ms.
• The wattmeter pulse must be able to sink at least 3 mA or more of current in the power indicator.
• Use the wattmeter for 1 W/Pulse, 2 W/Pulse, 4 W/Pulse, 6 W/Pulse, 8 W/Pulse,
10 W/Pulse, 100 W/Pulse, PT / CT (1 - 50 000).
• Use the gas meter for remote reading to send pulse signal depending on gas consumption.
• Use the gas meter with the pulse width of 50 ms or more.
• Use the gas meter containing the max. gas pressure of 0.2-10 m
• Gas meter pulse must be able to sink at least 3mA of current or more in the power indicator.
• Use the gas meters for 1 l / Pulse, 2 l / Pulse, 4 l / Pulse, 6 l / Pulse, 8 l / Pulse, 10 l / Pulse,
100 l / Pulse, VT / Pr (1 - 50 000).
• Set to Master Mode when setting the wattmeter or gas meter.
• Wattmeter or gas meter can be installed up to 4.
• Connection cable for the power indicator and wattmeter (gas meter) must not exceed 10 m
in normal circumstance.
• Reduce the length of connection cable if there is any electrical or mechanical noise on the site.
• For watt-hour meter and gas meter setting, inquire to the corresponding vendor.
h GHP (Gas engine Heat Pump): It is a gas air-conditioner to drive the compressor with LNG or LPG as
a heat source and the gas engine electric power.
Pulse signal(Power)
Pulse signal(Power)
POWER WHM
MENU
Pulse signal(Gas)
SELECT
PQNUD1S40
ODU WHM CHECK
Pulse signal(Gas)
(01) (02) (03)
(71) (72) (73)
RS485
(LGAP)
Wattmeter
380-415 V 3N~, 50/60 Hz
3
/h.
Power In 3
phase 4 wire
Gas meter
Gas