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PRODUCT DESIGN
GCH90453BX
-.60 20197311 -.60 20197311
GCH90703BX
-.60 20197311 -.60 20197311
GCH90704CX
-.37 20197313 -.37 20197313
GCH90904CX
-.60 20197311 -.60 20197311
GCH90905CX
-.37 20197313 -.37 20197313
GCH91155DX
-.60 20197311 -.60 20197311
PRESSURE SWITCH TRIP POINTS AND USAGE CHART
ID BLOWER
PRESSURE
SWITCH
PART #
Note: All negative pressure readings are in inches of water column (" w.c.).
PRESSURE
SWITCH
PART #
Note: Replacement pressure switch number is listed below high altitude kit number.
0 to 7,000 ft.
MODEL
TRIP POINT
COIL COVER
PRESSURE SWITCH
TRIP POINT
ID BLOWER
PRESSURE SWITCH
Part Number 20162906 20162904 20162907
Open Setting (°F)
170 150 155
GCH90453BX
1
GCH90703BX
1
GCH90704CX
1
GCH90904CX
1
GCH90905DX
1
GCH91155DX
1
T.O.D. PRIMARY LIMIT