Service Replacement Vavle Assembly; Sealed System Common - GE AZ45E07DA Series Technical Service Manual

Service Replacement Vavle Assembly

NOTE: Reversing valve assemblies will come
complete with tubing, so excess heat will not be
applied to the valve body.
Tank
On 7k and 9k heat-pump models, a receiver tank is
included in the sealed system. This tank is soldered
to the outdoor coil return line tube.
Check Valve
This valve allows the ow of refrigerant one way
unimpeded, but in heat pump mode it closes and
forces the refrigerant to go through an additional
length of capillary tube. This helps balance the
refrigerant system.
NOTE: Care must be taken when soldering in the
new check valve. Thermal paste and a damp rag
must be used on the middle portion of the assembly
to prevent thermal damage to the internal check
ball assembly.

Sealed System Common

High Pressure S itch – on some models
This electrical switch will shut down the compressor
if too high of pressure is detected. It is part of
the sealed system, tapped o of the compressor
discharge line.
NOTE: Should the pressure switch fail for any reason,
it will be removed and replaced with a coupling and
harness jumper kit. This repair will require sealed
system recovery, installing a new drier, coupling kit
and system recharge. Instructions will be included in
the kit. A model speci c drier must also be ordered
with the pressure switch kit.
Drier
All Zonelines will now have a drier factory installed.
The drier must be replaced anytime sealed system
repairs are performed.
NOTE: Driers are vacuumed packed and should only
be opened when it is being installed. Driers opened
and left to the open air become saturated and
should be discarded if not used within 45 minutes.
Heat pump drier kit sho n – Includes the check
valve, drier, capillary jumper and process stub
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