|
| |
(6) Triple evacuate system and charge with
refrigerant R22.
(7) Start air conditioner (para 2-10) and
operate unit for 24 hours.
(8) Discharge system and purge with nitrogen
(para 6-3).
(9) Install new dehydrator (para 5-24).
(10) Evacuate system and recharge with
refrigerant (para 6-3).
(11 ) Operate air conditioner,
6-6. Evaporator and Condenser Coils
u. Inspection. Inspect coils for damaged tubing
and bent fins. Inspect threaded holes for damaged
or stripped threads.
b. Repair. Repair any leaks. Straighten bent fins.
Repair or replace damaged tubing if possible.
Replace coil if repair is not practical.
6-7. Solenoid Valves
a. General. The solenoid valves without electrical
connectors are identical. Replaceable parts are the
coil,
bonnet assembly, diaphragm and the
preformed packing. See figure 6-3.
1. Coil
2. Diaphragm
3. Preformed packing
4. Bonnet assembly
Figure 6-3. Solenoid valve, exploded view.
6-6
|
