Sequence Of Operation; Shutdown Procedures - HeatStar HSU200NG Instrucciones De Operacion Y Manual Del Propietario

Call for heat
Call for heat
Call for heat

SEQUENCE OF OPERATION

1. STOP! Make sure you have read and understand all of the safety
information regarding the operation of this gas appliance. Any and
all service should be performed by a licensed installer
2. Set the thermostat to lowest setting.
3. Turn off all electrical power to appliance.
4. This appliance is equipped with an ignition device which
automatically lights burner. DO NOT attempt to light the burners
manually.
5. There is a main shut-off valve upstream of the unit. Open it. (See
Figure 9 on Page 11)
6. Wait five minutes 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 instructions. If you do not smell gas go to next
step.
Start-Up Failed Pressure Switch Condition Change Sequence
Failed Combustion Air Flow Monitoring Sequence
Large Unit Heater
Flame Lost Sequence
7. Turn on electrical power to unit.
8. Set the thermostat to desired setting.
WARNING: Should overheating occur, or the gas supply
control system fail to shut off the flow of gas, shut off the
manual gas valve to the utility heater before shutting off the
electrical supply

SHUTDOWN PROCEDURES

1. Set thermostat to lowest level.
2. Turn off all electrical power to unit if service is to be performed.
3. Turn manual shut off knob upstream the unit. Do not force.
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Operating Instructions and Owner's Manual