Reznor MAPS - A,B,C Users Manual - Manual (Page 13)

Form O-MAPSIII&IV Cabinets A/B/C, P/N 257004R8, Page 13
Compressor
Handling
Compressor
Replacement
Do not lift compressor by copper tubing. To prevent internal damage, compressors
must ALWAYS be held upright.
The following instructions include major points of consideration that will ensure proper
installation and protect you from potential personal injury. Please use the following 13
steps as a checklist, taking each item in order before proceeding to the next. If more
information is required, contact the Reznor HVAC Service Department for Reznor ®
products.
WARNING
To avoid electrical shock, power to the compressor(s) MUST REMAIN
OFF during performance of Steps 1 through 9 below. LOCK DISCONNECT
SWITCH OFF (open).
□ Step 1. Verify Proper Application
Verify that the replacement compressor is identical to the model being replaced.
All system components are matched to the compressor. Replacing a compressor
with a model other than the Reznor ® specified replacement will void the product
warranty. See part numbers for R-410A compressors in the tables on page 12.
□ 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.
WARNING
Wear eye protection and gloves when handling refrigerant or oil and
when brazing.
a) BEFORE REMOVING THE FAULTY COMPRESSOR, remove 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 programs.
b) Disconnect wires. All compressor wiring is connected using a black molded
plastic plug. Remove the plug from the compressor.
c) Open access ports so that pressure does not build up in the system. Before
unbrazing stubs from the compressor, cut 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.
Use a high temperature torch to disconnect the suction line and the discharge line from
the compressor.
d) Remove the mounting bolts and the compressor. Save the mounting hardware
to attach the grommets and sleeves shipped with the replacement compressor.
e) To test for acid and to assure excess oil does not remain in the circuit, remove
oil from the failed compressor. Measure the amount of oil.
CAUTION: In addition to the required eye protection and gloves, care
should be taken in handling POE oil because it may cause damage to
certain plastics and roofing materials. See Hazard Levels, page 3.
If the oil taken from the compressor and measured is found to be significantly
WARNINGS
For your safety, wear eye protection, gloves, and protective clothing
when handling refrigerant and oil and when brazing. Have a fire
extinguisher nearby. See Hazard Levels, page 2.