Transfer refrigerant from storage tank to machine – Carrier 19XL User Manual
Page 186
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Transfer Refrigerant from Storage Tank to Machine
1. Equalize refrigerant pressure.
a. Use the Control Test Terminate Lockout to turn on water pumps and monitor pressures.
b. Close pumpout/storage tank valves 2, 4, 5, and 8, and close machine charging valve 7;
open machine isolation valves 11, 12, 13, and 14 (if present).
c. Open pumpout/storage tank valves 3 and 6, open machine valves 1a and 1b.
d. Gradually crack open valve 5 to increase machine pressure to 68 psig (469 kPa) for
HCFC-22, 35 psig (141 kPa) for HFC-134a. Slowly feed refrigerant to prevent freeze up.
Valve
1a
1b
2
3
4
5
6
7
8
11
12
13
14
Condition
C
C
C
C
C
Click here for Figure 36 — 19XL Pumpout Unit Wiring Schematic
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