How To Shut Off Gas - Pilot Models; Operating Instructions - Direct Ignition - Nordyne M1B Installation Instructions Manual

Downflow, direct vent (sealed combustion) forced air gas & oil furnaces
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12.Setthethermostat mode toHEAT oradesired
temperature s ettingandthenON.
WARNING:
Close the hinged
fire door. if door
is left open or spring is broken
it
may allow products of combustion
into the living space by the furnace
blower,
resulting
in possible
asphyxiation.
13. Replace the furnace door.
NOTE: In the event of any flashback or explosion,
immediately
shut off the furnace and call your
service technician.
WARNING:
Should
overheating
occur, or the gas
supply fails to shut off, shut
off the
manual gas valve to the furnace
before
shutting
off the electrical
supply.
/L AVERTISSEMENT:
En case de temperature
excessive,
ou
sail
est
impossible
de cooper
i'alimentation
en
gaz,
fermer
le
robinet manuel d'alimentation
en gaz
du g_n_rateur
d'sir chaud avant de
cooper i'alimentation
61ectrique.
How to Shut Off Gas - Standing Pilot
1. Set the thermostat
to the lowest setting.
2. Turn off all electric power to the appliance
at
the breaker or fuse box.
3. Remove the furnace door.
4. Push in the gas control lever and move to the
left to the OFF position. DO NOT FORCE!
5. Replace the furnace door.
Operating
instructions
for
Direct
ignition
IVlodels IVllIVl
Direct ignitionfurnaces do not have a pilot, ignition
is accomplished
by a silicon carbide hot surface
ignitor. A control module takes care of all timing
functions. After lighting, the control module uses
the ignitor as a flame sensor, shutting off gas
should the flame go out. There are no external
relays or timing devices. Do not try to light this
furnace
by hand. The control
module
is not
field serviceable.
1. Set the thermostat
to the lowest setting.
2. Turn off all electric power to the appliance.
3. Remove the furnace door and turn off the gas
valve:
. Honeywell: push in and turn the gas control
knob clockwise to OFF (Figure 32)
. Robertshaw:
push the gas control lever to
the OFF position (Figure 33). Do not force!
4. Wait ten (10) minutes to clear out any gas. If
you smell gas, STOP! and follow the Safety
information
on page 19. If you do not smell
gas, proceed to next step 5.
5. Set the thermostat
MODE the ON position.
6. Turn the gas valve ON:
. Honeywell:
push in and turn gas control
knob counter-clockwise
to ON (Figure 32).
. Robertshaw:
push the gas control lever to
the ON position (Figure 33). Do not force!
7. Replace the furnace door.
8. Turn on all electric power to the appliance.
9. Change the thermostat mode to HEAT and the
temperature selector to a desired temperature
level. The igniter should light in approximately
75 seconds. If the appliance will not operate,
see "How To Shut Off Gas - Direct Ignition" and
call your service technician or gas supplier.
NOTE: In the event of any flashback or explosion,
immediately
shut off the furnace and call your
service technician.
GAS CONTROL
KNOB
Figure 32. Direct ignition
Gas Valve - Honeywell
-
Gas Control Lever
Figure 33. Direct ignition
Gas Valve - Robertshaw
21

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