Table of Contents
Advertisement
Figure 25
White Rodgers Model: 36E36 or 36E37
Figure 26
Honeywell Model: VR-8205
White Rodgers Model 36E22 or 36E23: Push the
selector switch to "OFF".
Redundant
Solenoid
O
F
INLET
F
ON
ON/Off
Selector
Switch
Inlet Pressure Tap
Main Regulator
(Side of Valve)
Adjust
Figure 27
White Rodgers Model 36E22 or 36E23
6. Wait five minutes to clear out any gas. Then smell for
gas, including near the floor. This is important , be-
cause some types of gas are heavier than air.
7. If you smell gas following the five minute waiting period
in Step 6, immediately follow the instructions on Page
2 of this manual. If you do not smell gas after five
minutes:
White Rodgers Model 36E36 or 36E37 or Honeywell
Model VR-8205: Turn the gas control knob counter-
clockwise
to the ON position.
White Rodgers Model 36E22 or 36E23: Push the
selector switch to "ON".
Main
WR
M
1
Solenoid
P
3
OUTLET
C
2
Outlet Pressure Tap
(Side of Valve)
8. Replace the louvered door on the front of the furnace.
9. Open the manual gas valve external to the furnace.
10. Turn on the electrical power supply to the furnace.
11. Set thermostat to desired setting.
Note: There is an approximate 20 second delay between
thermostat energizing and burner firing.
CHECK GAS INPUT PRESSURES
Gas supply pressure and manifold pressure with the
burners operating must be as specified on the rating plate.
CHECKING GAS PRESSURE
Gas inlet pressure should be checked and adjusted in
accordance to the type of fuel being consumed.
WITH POWER AND GAS OFF
1. Connect a water manometer or adequate gauge to the
"inlet pressure tap" of the gas valve (Figures 25, 26 or
27).
As an alternative method, inlet gas pressure can also be
measured by removing the cap from the drip leg and
installing a predrilled cap with a hose fitting.
WITH POWER AND GAS ON
2. Put furnace into heating cycle and turn on all other gas
consuming appliances.
Inlet Gas Pressure
Natural
Min. 5.0" W.C., Max. 10.0" W.C.
Propane
Min. 11.0" W.C., Max. 13.0" W.C.
Inlet Gas Pressure Must Not Exceed the Maximum Value Shown
in Table
If operating pressures differ from above, make necessary
pressure regulator adjustments, check piping size, etc.,
and/ or consult with local utility.
CHECK MANIFOLD PRESSURE
A tapped opening is provided in the gas valve to facilitate
measurement of the manifold pressure. ("Outlet Pressure
Tap" in Figures 25, 26 or 27) A "U-Tube" manometer
having a scale range from 0 to 12 inches of water should
be used for this measurement. The manifold pressure
must be measured with the burners operating.
To adjust the pressure regulator, remove the adjustment
screw cover on the gas valve. Turn out (counterclockwise)
to decrease pressure, turn in (clockwise) to increase
pressure. Only small variations in gas flow should be made
by means of the pressure regulator adjustment. The final
manifold pressure must not vary more than plus or minus
0.3 inches water column from the specified pressure. Any
major changes in flow must be made by changing the size
of the burner orifice.
23
Hide quick links:
Advertisement
Table of Contents
