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Complete t hefollowing checks before starting theunit,
1 - Check thetypeofgasbeingsupplied. Besureitisthe
sameaslistedontheunitnameplate,
2 - Make surethat t hevent h ood hasbeen properly installed,
FORYOUR SAFETY READ BEFORE LIGHTING
BEFORE LIGHTING smell a llaroundtheappliance area
forgas.Besure tosmell n ext t othefloorbecause s omegas
is heavier t hanairandwillsettle onthefloor.
WARNING
WARNING
WARNING
WARNING
Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by hand,
do not try to repair it, call a qualified service technician.
Force or attempted repair may result in a fire or explosion.
This furnace is equipped with a direct ignition control. Do
not attempt to manually light the burners.
1 - Turn off electrical power to unit.
2 - Set thermostat to lowest setting.
3 - Turn gas valve knob or push gas valve lever to ON
position. Refer to figures 11 and 12.
4 - Turn on electrical power to unit.
5 - Set room thermostat to desired temperature. (If ther-
mostat setpoint temperature is above room tempera-
ture after the pre-purge time expires, main burners will
light).
Honeywell VR8205 Series Gas Valve
o
Gas Valve Shown In Off Position
Figure
11
Robertshaw 7200 Gas Valve
gas valve
selector arm
in off position
Figure
12
To Shut Down:
1 - Turn off electric power to unit.
2 - Depress and turn knob or pull lever to OFF position.
Post Start-up Check List (Gas)
After the entire control circuit has been energized and the
heating section is operating, make the following checks:
1 - Check for gas leaks using soap solution in the unit pip-
ing as well as the supply piping.
2 - Check for correct manifold gas pressures. See "Man-
ifold Gas Pressure Adjustment."
3 - Check the supply gas pressure. It must be within the
limits shown on rating nameplate. Supply pressure
should be checked with all gas appliances in the build-
ing at full fire. At no time should the standby gas pres-
sure exceed 13 inches W.C., nor the operating pres-
sure drop below 5.0 inches W.C. for natural gas units,
11 inches W.C. for propane gas. If gas pressure is out-
side these limits, contact your gas supplier for correc-
tive action.
Page 13
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