Vacuuming And Charging Method - McQuay CE 10C Installation Manual

Ceiling/floor exposed convertible split type air conditioner

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CE 40/50/61/62 CR

4WV

Terminal

Strip

Indoor

Unit

COMP

IMPORTANT: (1) These values are for information only, they should be checked and selected to comply with the local and/

or national codes and regulations. They are also subjected to the type of installation and size of conductors

used.

(2) The appropriate voltage range should be checked with label data on the unit. ETL listed unit is only

applicable to 60Hz power supply only.

Ensure that the colors of wires on the outdoor unit and the terminal markings are the same as the indoor unit

respectively.

•

The pre-charged outdoor unit does not need any vacuuming or charging. However, once it is connected, the connecting

pipe line and the indoor unit need to be vacuumed before releasing the refrigerant (R22) from the outdoor unit.

Vacuuming Procedure For 2, 3 Way Valve (See Figure S)

1) Open the suction service port cap.

2) Manifold gauge connection:

•

Low side hose from manifold gauge to the suction

service port.

•

Service (center) hose from manifold gauge to the

vacuum pump.

3) Evacuate for approximately one hour (evacuation time

varies with pump capacity).

•

Confirm that the manifold gauge needle has moved

towards -30inHg (-76cmHg).

4) Close the low side valve on the manifold gauge, turn

off the vacuum pump and confirm that the gauge needle

does not move (approximately 3 minutes after turning

off the vacuum pump).

5) Disconnect the service hose from the vacuum pump.

6) After evacuation, open the valve stem of the discharge

and suction valve counter-clockwise for the gas to run

into the indoor unit.

7) Check the low side pressure after turning on the

compressor for 10 to 15 minutes.

Interconnection Cable

Power Supply

Cable

! Caution