Section 22: HEATING AND AIR CONDITIONING
PA1562
29
2. Disconnect the external equalizer line from
the under side of the power head, and
unclamp the remote control bulb from the
evaporator coil outlet line.
3. Remove the two cap screws holding the
power assembly to the valve body flange.
Lift off the power assembly and remove the
cage assembly.
4. When reassembling, replace with the new
gaskets in proper location. Make sure the
two lugs on the cage assembly fit into
grooves provided in the power assembly.
Do not force the valves together. The cage
must fit properly before tightening the body
flange. Tighten bolts evenly.
5. Check for leaks.
Safety Instructions
1. Make sure the valve is installed with the
flow arrow on the valve body corresponding
to the flow direction through the piping
system.
2. Before opening any system, make sure the
pressure in the system is brought to and
remains at the atmospheric pressure.
Failure to comply may result in system
damage and/or personal injury.
7.9 TORCH BRAZING
Use an electrode containing 35% silver.
CAUTION
When using heat near a valve, wrap with a
water saturated rag to prevent overheating of
vital parts.
DANGER
Before welding any part of refrigeration
system, make sure the area is well ventilated.
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