Gas Heat Start-Up (Gas Units) - Lennox LGH180H Installation Instructions Manual

6- Thermal Protector (S5, S8, S31, S180)
180H, 240H -
Each compressor is protected by an external
temperature switch. The N.C. switch opens at 248°F
+ 9 (120°C + 13) and automatically resets at 169°F +
18 (76°C+8).
156H, 210H -
Each compressor is protected by an internal thermal
protector switch.
180U, 240U -
Each compressor is protected by an internal
temperature switch and a discharge line thermostat
switch. The N.C. discharge line switch opens at
240°F + 9 (116°C + 13) and automatically resets at
190°F + 13 (88°C+7).
LGH/LCH156, 180, 210, 240, 300S

Gas Heat Start-Up (Gas Units)

FOR YOUR SAFETY READ BEFORE LIGHTING
BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
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 unit is equipped with an automatic spark ignition
system. There is no pilot. In case of a safety shutdown,
move thermostat switch to OFF and return the thermostat
switch to HEAT to reset ignition control.
Electric shock hazard. Can cause injury
or death. Do not use this unit if any part
has been under water. Immediately call
a qualified service technician to inspect
the unit and to replace any part of the
control system and any gas control
which has been under water.
Danger of explosion. Can cause injury
or product or property damage. If
overheating occurs or if gas supply
fails to shut off, shut off the manual gas
valve to the appliance before shutting
off electrical supply.
Electric shock hazard. Can cause
injury or death. Before attempting to
perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
The heat exchanger in this unit could be a source of
smoke on initial firing. Take precautions with re­
spect to building occupants and property. Vent ini­
tial supply air outside when possible.
Danger of explosion. Can cause injury or
death. Do not attempt to light manually.
Unit has a direct spark ignition system.
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WARNING
WARNING
WARNING
WARNING
SMOKE POTENTIAL
WARNING