Reznor MASA Unit Installation Manual - Manual (Page 30)

Form I-COND, P/N 220746R6, Page 30
10.5 Compressor
Maintenance
and
Replacement
(cont’d)
TABLE 9 (cont’d)- Replacement Scroll Compressors for R-410A
Refrigerant
10.0 Maintenance
and Service
(cont’d)
 Step 2. Determine Cause of Initial Failure and Remove the Compressor
In order to prevent a second failure, the cause of the original failure must be
determined. Identify the cause and make the necessary repairs.
CAUTION
DO NOT LIFT compressor by copper tubing; damage will
occur. Compressor must remain upright. See Hazard Levels,
page 3.
WARNING
Wear eye protection, gloves, and protective clothing when
handling refrigerant, POE oil, and when brazing. See Hazard
Levels, page 3.
a) BEFORE REMOVING THE FAULTY COMPRESSOR, remove R-410A
refrigerant charge using proper recovery procedures. Call 1-800-441-
9450 for the name of the nearest *Dupont authorized distributor or
1-800-ASK-KLEA (IGI) for information on their refrigerant reclaim pro-
grams. This is a scroll compressor. Be sure to remove refrigerant from
both the high side and the low side.
WARNING
Do not release refrigerant to the atmosphere. When adding or
removing refrigerant, the qualified technician must comply
with all national, state/province, and local laws.
MASA
Model
Nominal
Tonnage
Voltage
Refrigerant
Circuit
Nominal
Tonnage
Compressor
Model*
Reznor
P/N
240 20
200-
230/3/60
A 7 ZP83K 216689
B 13 ZP154K 220260
480/3/60
A 7 ZP83K 216690
B 13 ZP154K 220261
575/3/60
A 7 ZP83K 216691
B 13 ZP154K 220262
*Model No. of replacement R410A scroll compressor must be identical to the one
removed including the " E" (ZP39KxExxx) which indicates POE compressor oil.
b) Disconnect wires. Compressor wiring is connected either using a black
molded plastic plug or wire terminals. Either remove the plug from the
compressor or disconnect the wires.
c) Open access ports so that pressure does not build up in the system.
Before unbrazing, cut the suction and discharge tubing with a tubing
cutter.
WARNING
Have a fire extinguisher near. The compressor contains oil.
There is a risk of fire when unbrazing stubs. See Hazard
Levels, page 3.
Use a high temperature torch to disconnect the suction line and the dis-
charge line from the compressor.