Product Manual

Form #43219020
11 June 09
going to lockout, and the valve will be de-energized immediately.
5. If the heater does not light, shut off the gas completely for 5 minutes before attempting to relight.
6. CAUTION: The heater must be grounded. Poor grounding will give nuisance lockouts, particularly during
momentary power interruptions.
7. To shut down the heater, turn off the gas and the electrical supply.
NOTE
: The lighting and shutdown instructions are also shown on the permanent nameplate attached to the
heater.
13) SEQUENCE OF OPERATION
The chart below shows the sequence of operation for the normal operating cycle of the heater when
connected to a permanent 120V power supply and the heater is turned on and off by a remote 120V
thermostat. (See Section 10)
T0 T2 T3 T4
Call for heat, Thermostat on
10 secs trial for ignition
Normal operation flame sensing
Heater OFF
Thermostat (turn off)
Thermostat
Ignition
Gas valve
Flame sensing
Function ON Function OFF
T1
If the flame is not sensed during sequence T2 then the burner will automatically begin re-ignition sequence T1.
The ignition sequence will be repeated three times with a 15 second inter-purge. If the flame is not
reestablished the heater will go to lockout.
14) CLEANING AND ANNUAL MAINTENANCE
ELECTRIC SHOCK & EXPLOSION HAZARD
Disconnect electrical power and gas supply before
servicing.
Failure to do so may result in death or serious injury.
Do not blow out heating elements with high pressure air.
Failure to do so may result in property damage.
EQUIPMENT FAILURE HAZARD
This heater consists of multiple individual atmospheric burners. Due to the variation in tile porosity, there could
be color variations between the burners. This is natural and should not be a cause for concern during the initial
startup.
This heater must be cleaned and serviced at least once before the start of each heating season or at any time the
infrared emitter shows signs of collecting any foreign material on its surface or in the ports, or when anything