9
PRODUCT DESIGN
LOW FIRE
HIGH FIRE
LOW FIRE
HIGH FIRE
LOW FIRE
HIGH FIRE
LOW FIRE
HIGH FIRE
GMVC950453BX*
GMVC950704CX*
AMVC950453BX*
AMVC950704CX*
-0.45
-0.92
-0.50
-0.97
-0.25
-0.25
-0.25
-0.25
GMVC950905DX*
GMVC951155DX*
AMVC950905DX*
AMVC951155DX*
-0.65
-1.27
-0.70
-1.32
-0.25
-0.25
-0.25
-0.25
GCVC90704CX*
ACVC90704CX*
-0.35
-0.70
-0.40
-0.75
-0.52
-0.52
-0.52
-0.52
GCVC90905DX*
ACVC90905DX*
-0.35
-0.70
-0.40
-0.75
-0.52
-0.52
-0.52
-0.52
GCVC91155DX*
-0.35
-0.70
-0.40
-0.75
-0.52
-0.52
-0.52
-0.52
(2) Data given is least negative pressure required f or pressure sw itch to remain closed.
Note: The typical s ea level negative pressure data represents the minimum press ures expec ted. Shorter length of f lue pipe or single pipe systems
compared to dual pipe systems should show higher (greater negativ e) pressures.
PRESSURE SW ITCH TRIP POINTS AND USAGE CHART
NEGATIVE PRESSURE
ID BLOW ER
W ITH FLUE
NOT FIRING
TYPICAL SEA LEVEL
DATA
(1)
NEGATIVE PRESSURE
ID BLOW ER
W ITH FLUE
FIRING
TYPICAL SEA LEVEL
DATA
(2)
NEGATIVE PRESSURE
COIL COVER
W ITH FLUE
NOT FIRING
TYPICAL SEA LEVEL
DATA
( 1)
NEGATIVE PRESSURE
COIL COVER
W ITH FLUE
FIRING
TYPICAL SEA LEVEL
DATA
(2)
MODEL
(1) Data given is least negative pressure required f or pressure sw itch to close.
LOW FIRE
HIGH FIRE
LOW FIRE
HIGH FIRE
LOW FIRE
HIGH FIRE
LOW FIRE
HIGH FIRE
GMVC950453BX*
GMVC950704CX*
AMVC950453BX*
AMVC950704CX*
-0.10
-0.10
20197308
-0.30
-0.75
11177113
-0.10
-0.10
-0.22
-0.55
HAPS28
11177115
GMVC950905DX*
GMVC951155DX*
AMVC950905DX*
AMVC951155DX*
-0.10
-0.10
20197308
-0.50
-1.10
11177114
-0.10
-0.10
-0.38
-0.82
HAPS29
11177116
GCVC90704CX*
ACVC90704CX*
-0.37
-0.37
20197313
-0.20
-0.55
11177118
-0.37
-0.37
-0.15
-0.30
HAPS31
GCVC9090
5
DX*
ACVC9090
5
DX*
-0.37
-0.37
20197313
-0.20
-0.55
11177118
-0.37
-0.37
-0.15
-0.30
HAPS31
GCVC91155DX*
-0.37
-0.37
20197313
-0.20
-0.55
11177118
-0.37
-0.37
-0.15
-0.30
HAPS31
ID BLOW ER
PRESSURE
SW ITCH
PART #
Note:
Replacem ent pres s ure s w itch num ber is lis ted below high altitude kit num ber.
Note:
All negative pres s ure readings are in inches of water colum n (" w .c.).
0 to 7,000 ft.
MODEL
TRIP POINT
ID BLOW ER
PRESSURE SW ITCH
HIGH
ALTITUDE
KIT
7,001 ft. to 11,000 ft.
P RESS URE SW ITCH TRIP POINTS AND US AGE CHART
Note:
All ins tallations above 7,000 ft. require a pres s ure s w itch change. For ins tallations in Canada the *C VC 9 & *MVC95 furnaces are certified only to 4500 ft.
TRIP POINT
COIL COVER
PRESSURE SW ITCH
TRIP POINT
COIL COVER
PRESSURE SW ITCH
TRIP POINT
ID BLOW ER
PRESSURE SW ITCH
COIL COVER
PRESSURE
SW ITCH
PART #
