L.B. White AW100 - Manual (Page 11)

Follow steps 1 - 6 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. The gas control
valve on the heater has a manual shut-off feature
incorporated into the valve assembly and may be
located under a metal cover. Remove the metal cover
and make sure the indicator on the valve is turned to
the “on” position. Replace the metal cover. See Fig.
6.
FIG. 6
2. Connect the electrical cord to an approved electrical
outlet.
3. Set the thermostat to desired room temperature.
4. This heater includes a hot surface ignition (HSI)
control module for purposes of controlling the timing
of the ignition process of the heater as well as
monitoring of the safety functions. The HSI module is
contained within the control enclosure. On the HSI
module is a red light emitting diode (LED). This LED
indicates the status of the heater. The LED is visible
external of the control enclosure through the plastic
eye. A constant light from the LED is an indicator that
the heater is functioning correctly. Any flash pattern
by the LED is indicative that there is a problem in the
operation of the heater. Refer to the troubleshooting
decal on the access panel at the fan motor end of the
heater for assistance in troubleshooting. Only
qualified and properly trained personnel shall service
or repair the heater.
5. On a call for heat, the motor will start up and run for
five (5) seconds and then stop. This pre-purge is a
safety feature and a normal operational
characteristic prior to ignition taking place. After the
motor has stopped, the igniter will heat up
(approximately 17 seconds). After igniter warm up
time has been achieved, the motor will start again
and shortly thereafter ignition will occur.
NOTE: It is normal for air to be trapped in the gas
hose on new installations. The heater may
attempt more than one trial for ignition
before the air is finally purged from the line
and ignition takes place.
6. The HSI control will make up to three trials for
ignition. Each trial for ignition will take approximately
20 seconds. The first two trials for ignition will occur
within 40 seconds if ignition is not achieved. A 15
minute wait period will then begin after the second
trial for ignition has taken place. After the 15 minute
time span has elapsed, the third and final trial for
ignition will take place. If ignition is not achieved at
this final trial, the system will lock out, and a three
flash pattern will be indicated by the LED.
If the heater is to be shut down for cleaning, maintenance or
repair, follow steps 1 - 5. Otherwise, simply turn thermostat
to off or no heat for standard shut down.
1. Close all manual fuel supply valves.
2. With the heater lit, allow heater to burn off excess
fuel in gas supply hose.
3. Position the indicator on the gas control to off.
4. Position thermostat to off or no heat position.
5. Disconnect the heater from the electrical supply.
11
Start-Up Instructions
Shut-Down Instructions
ON
OFF