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Service Manual

ManualsBrandsGOODMAN ManualsAir Conditioners3.5 Ton 14 SEER 37600 BTU R410A Variable Speed Split System Central Air Conditioning System
71727374757677787980
SYSTEM OPERATION
79
RESTRICTOR ORIFICE ASSEMBLY IN
COOLING OPERATION
RESTRICTOR ORIFICE ASSEMBLY IN
HEATING OPERATION
In the cooling mode, the orifice is pushed into its seat,
forcing refrigerant to flow through the metered hole in
the center of the orifice.
In the heating mode, the orifice moves back off its seat,
allowing refrigerant to flow unmetered around the
outside of the orifice.
EXPANSION VALVE/CHECK VALVE ASSEMBLY IN
COOLING OPERATION
EXPANSION VALVE/CHECK VALVE ASSEMBLY IN
HEATING OPERATION
Most expansion valves used in current Amana
®
Brand Heat Pump products
use an internally checked expansion valve.
This type of expansion valve does not require an external check valve as shown above.
However, the principle of operation is the same.