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Follow steps 1 - 8 on initial start-up after heater installation
by a qualified gas heater service person. For normal start-
up, simply turn thermostat above room temperature. The
heater will start.
1. Open all manual fuel supply valves and check for gas
leaks using approved leak detectors.
2. Connect the electrical cord to an approved electrical
outlet.
3. Set the thermostat to desired room temperature.
4. The heater has a selector switch located on the back
of the heater. The selector switch allows you to either
heat or ventilate (no heat). The selector switch
positions are as follows:
FIG. 8
When the selector switch is set to “Heat”, the heater
will cycle on and off based upon setpoint of the
thermostat. To use the heater for ventilating, position
the selector switch to “Vent”. With the switch in this
position, the thermostat will not cycle the heater. The
burner will not ignite, but the fan motor will operate
continually.
5. This heater includes a direct spark ignition (DSI)
control module for purposes of controlling the timing
of the ignition process of the heater as well as
monitoring of the safety functions. The DSI module is
located at the burner end of the heater. On the DSI is
a red light emitting diode (LED). This LED indicates
the status of the heater. A consistent flashing from
the LED is an indicator that the heater is functioning
correctly. Any other light pattern, steady on or
flashing, given by the LED is indicative that there is a
problem in the operation of the heater. Refer to the
troubleshooting decal within the access panel at the
burner end of the heater for assistance in
troubleshooting or refer to the troubleshooting guide
within this Owner’s Manual. Only qualified and
properly trained personnel shall service or repair the
heater.
6. On a call for heat, the motor will start up and run for
five (5) seconds prior to ignition trial. This “pre-
purge” is a safety feature and a normal operational
characteristic. After five (5) seconds the igniter will
spark until burner flame is detected by the control
module.
NOTE:
It is normal for air to be trapped in the gas
hose on new installations. You may have to
attempt more than one trial for ignition
before the air is finally purged from the line
and ignition takes place.
7.
If ignition is not achieved during the ignition trial, the
ignition control module will lock-out and a two-flash
pattern will be indicated by the LED.
8. Do not exceed the input rating stamped on the
dataplate of the heater. Do not exceed the burner
manifold pressure stated on the dataplate. Do not
use an orifice size different than specified for the
specific input rating of this heater, fuel type
configuration and altitude.
1. For normal shutdown (when fur ther use is
anticipated), position the power supply switch to 'Off'
and the thermostat to off or no heat.
2. To properly shut down the heater when disconnecting
the gas supply for ser vice, maintenance, or
relocation:
a. Position the power supply switch to 'Off' and
disconnect the heater's electrical supply.
b. Close the gas supply valve(s) at gas source.
c. Disconnect heater's gas pressure regulator from
gas source. A minimal amount of gas trapped in
the gas hose will escape. This is normal and will
not cause an unsafe condition.
14
Start-Up Instructions
Shut-Down Instructions
SWITCH POSITIONS
HEAT
(UP)
OFF
(MID)
VENT
(DOWN)