Note: The typical sea level negative pressure data represents the minimum pressures
expected. Shorter length of flue pipe or single pipe systems compared to dual pipe systems
should show higher (greater negative) pressures.
TRIP POINT
COIL COVER
MODEL
PRESSURE
SWITCH
LOW
HIGH
FIRE
FIRE
GMV950453BX*
-0.10
-0.10
GMV950704CX*
GMV950905DX*
-0.10
-0.10
GMV951155DX*
Note: All installations above 7,000 ft. require a pressure switch change. For installations in Canada the GMV95 furnaces are certified only to 4500 ft.
Note: Replacement pressure switch number is listed below high altitude kit number.
Note: All negative pressure readings are in inches of water column (" w.c.).
Gmvc95 / gcvc95/9 series comfortnet-compatible multi-position, two-stage gmvc95: up to 95% afue gcvc95: up to 95% afue gcvc9: up to 93% afue variable-speed gas furnace heating input: 46,000–115,000 btu/h (12 pages)