McQuay CE 10C, Installation Manual

Page: 13 / 96

1-9
English
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.
VACUUMING AND CHARGING METHOD
Figure
S
For 2, 3 way valve
Outdoor Unit
Liquid Side
Close
Discharge
Valve
Indoor Unit
Gas Side
Close
Vacuum
Pump
Suction Valve
Hi
Open
Low
Close
• 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)
!
Caution
Ensure that the colors of wires on the outdoor unit and the terminal markings are the same as the indoor unit
respectively.
N
L
COMP
A
4WV
OF
N
L
COMP
A
4WV
OF
S
N
T
R
The electrical power must be provided with
protection devices (circuit breaker or fuse)
with pole separation system, minimum
contact gap of 3mm.
CE 40/50/61/62 CR
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.
Interconnection Cable
Terminal
Strip
Indoor
Unit
Terminal Strip
Outdoor Unit
Power Supply
Cable
!