Carrier PC211 specifications

(448 kPa) for HCFC-22, 30 psig (207 kPa) for HFC-134a, and then turn off the compressor. Repeat this process until the pressure no longer rises, then turn on the pumpout compressor and pumpout until the pressure reaches 18 in. Hg. (40 kPa absolute).

f.

Close valves 1a, 1b, 3, 4, and 6.

Valve

1a

1b

2

3

4

5

6

7

8

11

12

13

14

Condition

C

C

C

C

C

C

C

C

C

g. Turn off the pumpout condenser water and continue with the Control Test for

Pumpdown, which will lock out the machine compressor for operation.

4. Establish vacuum for service.

a.

In order to conserve refrigerant, operate the pumpout compressor until the machine

pressure is reduced to 18 in. Hg vac., ref 30 in. bar. (40 kPa abs.) following Step 3e.