7
PRODUCT DESIGN
* GKS9 furnaces are shipped without coil cover pressure switches. All GKS9 models are shipped from the factory as Dedicated Upflow but can
be installed as a Horizontal Left or a Horizontal Right, ONLY after installing GKS9 Horizontal Installation Kit 0270K00012, which contains
Pressure Switch 20197312.
GKS90453BX*
-1.40
-1.20
-0.52
-0.37
GKS90703BX*
-1.30
-1.10
-0.52
-0.37
GKS90704CX*
-1.30
-1.10
-0.52
-0.37
GKS90904CX*
-1.10
-0.95
-0.52
-0.37
GKS90905DX*
-0.90
-0.75
-0.52
-0.37
GKS91155DX*
-1.30
-1.10
-0.52
-0.37
PRESSURE SWITCH TRIP POINTS AND USAGE CHART
NEGATIVE PRESSURE
ID BLOWER
WITH FLUE FIRING
TYPICAL SEA
LEVEL DATA
NEGATIVE PRESSURE
COIL COVER
WITH FLUE FIRING
TYPICAL SEA
LEVEL DATA
NEGATIVE PRESSURE
COIL COVER
WITH FLUE NOT FIRING
TYPICAL SEA
LEVEL DATA
MODEL
NEGATIVE PRESSURE
ID BLOWER
WITH FLUE NOT FIRING
TYPICAL SEA
LEVEL DATA
MODEL
TRIP POINT
COIL COVER
PRESSURE
SWITCH
COIL COVER
PRESSURE
SWITCH
PART #*
TRIP POINT
ID BLOWER
PRESSURE
SWITCH
ID BLOWER
PRESSURE
SWITCH
PART #*
TRIP POINT
COIL COVER
PRESSURE
SWITCH
TRIP POINT
ID BLOWER
PRESSURE
SWITCH
HIGH
ALTITUDE
KIT
GKS90453BX*
-0.37
20197312
-1.20
0130F00001P
TBD
TBD
TBD
GKS90703BX*
-0.37
20197312
-1.10
0130F00000P
TBD
TBD
TBD
GKS90704CX*
-0.37
20197312
-1.10
0130F00000P
TBD
TBD
TBD
GKS90904CX*
-0.37
20197312
-0.95
0130F00002P
TBD
TBD
TBD
GKS90905DX*
-0.37
20197312
-0.75
0130F00004
TBD
TBD
TBD
GKS91155DX*
-0.37
20197312
-1.10
0130F00001P
TBD
TBD
TBD
PRESSURE SWITCH TRIP POINTS AND USAGE
0 to 7,000 ft.
7,001 to 11,000 ft.
(1) Data given for the flue not firing is least negative pressure required for switch to close.
(2) Data given for the flue firing is least negative pressure required for the switch to remain closed.
Note: All negative pressure readings are in inches of water column (" w.c.).
Note: For installations in Canada, this 90% furnace is certified only to 4500.ft.
