This task covers:
Tool kit, service, refrigeration unit
Power off at power source.
Both front door assemblies removed. See para 4-17.
General Safety Instructions:
Disconnect input power to the unit before performing any internal maintenance.
Voltages used can kill. Shutting the unit off at the thermostat does not disconnect
The drier must be replaced each time the refrigeration system has been opened. It
should be installed just before unit is leak tested.
Check drier for general condition and signs of leakage. See Figure 5-2.
If leakage is suspected, perform a leak test. See para 5-8.
Install both front door assemblies. See para 4-17.
Discharge the refrigerant system. See para 5-5.
Replacement driers are packed with sealing caps on the flare fittings to prevent
moisture contamination of the desiccant filtering media. Remove these caps
immediately prior to installation. Never install a drier from which caps have been
removed for an extended or unknown period of time.
Flow arrow on drier must point down.
(2) Braze fitting on the drier. See para 5--7.