Lennox G26 Series - Intake and Exhaust Piping Installation; Removal of Unit from Common Venting System

HONEYWELLVR8205SERIESGASVALVE
\
GAS VALVE SHOWN IN OFF POSITION
WHITE RODGERS
36E GAS VALVE
GAS VALVE _
SHOWN
iN OFF
POSITION
FIGURE 33
6 - Whffe Rodgers 36E Gas Valve - Switch gas valve le-
verto OFF. See figure 33.
Honeywell VR8205 Gas Valve - Turn knob on gas
valve clockwise_lt' to OFF. Do not force. See figure
33.
7 - Wait fiveminutes to clear out any gas. If you then smell
gas, STOP! Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's instruc-
tions. If you do not smell gas go to next step.
8 - White Rodgers 36E Gas Valve - Switch gas valve lever
to ON.
Honeywell VR8205 Gas Valve-Tum knob on gas valve
counterctockwi_ to ON. Do not force.
9 - Replace unit access panel.
10- Turn on all electrical power to unit.
11- Set thermostat to desired setting.
NOTE - When unit is initiallystarted, _eps 1 through 11
may need to be repeated to purge air from line.
NOTE- On initial start-up and when condensate trap is
dry, unit may turn itseff off and on to allow condensate
trap to fill. This is normal operation.
12- If the furnace wii/not operate, follow the instructions
=ToTurn Off Gas To Unit" and call your service techni-
cian or gas supplier.
To Turn Off Gas To Unit
1 - Set thermostat to lowest setting.
2 - Turn offall electricalpowerto unit if service is to be per-
formed.
3 - Remove heat section access panel.
4 - On Honeywell VR8205 gas valves, turn knob on gas
valve clockwise4_ to OFF. For White Rodgers 36E
gas valves, move switch to OFF Do not force.
5 - Replace the unit access panel.
JGas Pressure Adjustment I
Gas Line Pressure
Check gas fine pressure with unit firing at maximum rate. A
minimum of 4.5 inches w.c. (1.12kPa) for natural gas or 8.5
inchesw.c. (2.11kPa) for LP/propane gas should be main-
tained.
Gas Manifold Pressure
After line pressure has been checked and adjusted, check
regulator pressure. See table 6 for correct manifold pres-
sures for LP/propane and natural gas at altitudes in a range
of 0 to 7500 feet (0 to 2248m).
TABLE 6
Unit (Fuel) Manifold Pressure (outlet)
from 0 to 7500 ft. (0 to 2248nl) above sea level
Natural 3.5" w.c. (.87 kPa)
L.P.IPropane
7.5" w.c. (1.86 kPa)
&WARNING
GAS VALVE
CONTROL KNOB
OUTLET
PRESSURE
TAP c
ou
FIGURE 34
HONEYWELL GAS VALVE
WIRING
TERMINALS
INLET
PRESSURE
TAP
/
_BARBED
FITnNG FOR
PRESSURE
SWITCH
HOSE
PRESSURE
REGULATOR
(UNDER CAP SCREW)
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