LG LK-1580CH User Manual download pdf (Page 21)

ENGLISH

After the unit has operated in the cooling mode for a short period of time, install pressure

gauges on the gauge ports of the discharge and suction line valves.

Note: Always route refrigerant hoses through the port hole provided and have

compressor access panel in place.

Check the suction and discharge pressures and compare them to the normal operating

pressures provided in the unit's Service Manual.

Note: Do not use pressures from Service manual to determine the unit refrigerant

charge. The correct charge is shown on the unit nameplate. To charge the system

accurately, use superheat charging or weigh the charge.

With the compressor operating, check the line voltage at the unit. The voltage should be

within the range shown on the unit nameplate. If low voltage is encountered, check the size

and length of the supply line from the main disconnect to the unit. The line may be

undersized for the length of the run.

Bodily injury can result from high voltage electrical components. If operating checks must be performed

with the unit operating, it is the technician's responsibility to recognize these hazards and proceed

safely. Failure to do so could result in severe personal injury or death due to electrical shock or contact

with moving parts.

WARNING

Operating Pressures

Voltage

1 2 ... 16 17 18 19 20 21 22 23 24

No comments

LG LK-1580CH User Manual Page 21