51
G. Removal and Replacement of Condenser
CAUTION
1. Always install a new drier every time the sealed refrigeration system is
opened.
2. Do not replace the drier until after all other repair or replacement has been
made. Install the new drier with the arrow on the drier in the direction of the
refrigerant flow.
3. When brazing, protect the drier by using a wet cloth to prevent the drier from
overheating. Do not allow the drier to exceed 250°F (121°C).
1) Move the power switch to the "OFF" position, then unplug the unit.
2) Remove the panels.
3) Remove the refrigeration system cartridge. Perform steps 1 through 14 in "IV.B.1.
Recovery Procedure." Once the refrigeration system cartridge is out, proceed to step 4.
4) Remove the condenser thermistor (clogged filter).
5) Disconnect the condenser inlet and outlet piping.
6) Remove the condenser assembly.
7) Remove the air guide, evaporator case cover bracket, and condenser shroud (A) from
the old condenser and attach it to the new condenser. See Fig. 4.
8) Place the new condenser assembly in position.
9) Remove the drier, then place the new drier in position.
10) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.
11) Replace the condenser thermistor (clogged filter) in its correct position.
12) Once the repair is complete, return to step 15 in "IV.B.1. Recovery Procedure" for
refrigeration system cartridge replacement.
Condenser
Condenser Thermistor
(clogged filter)
Condenser Shroud (A)
Air Guide
Evaporator Case
Cover Bracket
Fig. 4
Summary of Contents for HPR100A
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