7
Flame Roll-Out
Protection
Device
Figure 6
Roll-Out Protection Device
(GUC and GUX)
Flame Roll-Out
Protection
Device
Figure 7
Roll-Out Protection Device
(GUD)
WARNING
PERSONAL INJURY HAZARD
To avoid death, personal injury or property
damage due to fire or explosion, do not reset
the roll-out protection device. If it opens, the
cause must be investigated by a qualified
servicer before any attempt is made to en-
gage the roll-out protection device and turn
the furnace back on.
Figure 3
White Rodgers
Model 36E
Figure 4
Honeywell
Model VR-8205
Gas Control
Valve Lever
(In ON Position)
INLET
OUTLET
Pressure Regulator
Adjustment (Under
Cap Screw)
Outlet Pressure Tap
(Side of Valve)
Inlet Pressure Tap
Figure 5
Robert Shaw Model 7222 DER
Roll-Out Protection Device
If flames from the burners are not properly drawn into the heat
exchanger, a flame roll-out limit switch will open causing
combustion to cease. The roll-out limit switch is located on
one end of the manifold assembly for GUC and GUX furnaces
(Figure 6) and in the burner box on GUD furnaces (Figure 7).
