Furnace Components; Vacuum Hose Routing - American Standard UHMB060ACV3VB Series Service Facts

WARNING
!
FIRE - EXPLOSION HAZARD
DO NOT RUN FLEXIBLE GAS LINE THROUGH THE
FURNACE CABINET WALL OR WITHIN THE FUR-
NACE CABINET. FAILURE TO FOLLOW THIS WARNING
COULD RESULT IN PROPERTY DAMAGE, SERIOUS
PERSONAL INJURY, OR DEATH.

FURNACE COMPONENTS

1

VACUUM HOSE ROUTING

3
UHM-DHM-SF-1V-EN
2
H-Fitting must be installed in this orientation.
Burner Box
Orifice in H fitting must
be pointing away from PS1
Pressure Switch
PS-3
Pressure
Switch
PS-2
Tee
Heat Exchanger (Cold Header)
Service Facts
! Important !
Brass orifices located in these two legs.
Tee
Pressure
Switch
PS-1
H-Fitting
Tee
Negative
Control
Pressure
Post
Modulating
Gas Valve
To Pressure
Switch PS-1
Positive Control
Pressure Post
5