To Turn Gas Off To Appliance; Shutdown Procedure - Lennox SHRL 33 DV INS Installation And Operation Manual

Piezo Igniter
Blower Speed
Control (rheostat)
Figure 31 - Gas Controls
Thermopile
Figure 32 - Pilot Assembly
22
ON/OFF
Switch
Gas Control Knob
(Pilot / On / Off)
Flame Height
Control Knob
(Hi/Lo)
Pilot Hood
Igniter (electrode)
Thermocouple
Pilot Assembly
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE
To Turn Off Gas To Appliance
1. Turn off the "ON/OFF" rocker switch and/or thermostat (if installed).
2. Turn off electric power to the appliance if service is to be performed.
3. Turn gas control knob clockwise
This appliance needs fresh air for safe operation and must be installed
so there are provisions for adequate combustion and ventilation air. See
Installation and Operation Manual accompanying appliance.
Operation of this appliance when not connected to a properly installed and
maintained venting system can result in carbon monoxide (CO) poisoning and
possible death.

Shutdown Procedure

1. To turn off the burner, switch the rocker switch to "OFF" or adjust the
thermostat to a setting below room temperature (if installed). The
pilot will remain lit for future burner ignition.
For complete shutdown: See "To Turn Off Gas To Appliance" above.
WARNINGS
• Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. For assistance or additional
information, consult a qualified installer, service
agency or your gas supplier.
• Operation of this appliance when not connected
to a properly installed and maintained venting
system can result in carbon monoxide (CO)
poisoning and possible death.
• Carbon monoxide poisoning – early signs of
carbon monoxide poisoning resemble the flu
with headaches, dizziness, or nausea. If you
have these signs, get fresh air at once! Have the
heater inspected by a qualified service techni-
cian. Some people are more affected by carbon
monoxide than others. These include pregnant
women, people with heart or lung disease or
anemia, those under the influence of alcohol,
and those at high altitudes.
to "OFF". Do not force.