For initial start-up after heater installation, read steps 1-6.
For normal start-up, simply set the thermostat above room
temperature.
1.
Connect electrical cord to an approved electrical
outlet.
2.
Set thermostat to desired room temperature.
3.
This heater has a manually operated toggle style
selector switch located adjacent to the control box.
This switch allows you to either heat or ventilate (no
heat). See Fig. 10 for selector switch positions.
FIG. 10
A. Heating
a.
Open all manual fuel supply valves. Check for gas
leaks using an approved leak detector. The gas
control valve on the heater has a manual shut-off
feature incorporated into the valve assembly. Make
sure the indicator on the valve is turned to the ON
position. See Fig 11.
FIG. 11
b.
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.
When the selector switch is positioned to heat, the
red light emitting diode (LED) on the ignition control
will be on. This LED indicates the status of the
heater. The LED is visible through the plastic window
of the control box. A constant light from the LED is an
indicator that the heater is functioning correctly.
Any flash pattern by the LED indicates an operation
problem. Refer to the troubleshooting decal adjacent
to the control box for assistance in troubleshooting.
Only qualified and properly trained personnel shall
service or repair the heater.
c.
On a call for heat, the motor will start 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.
4.
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 has passed, 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.
B. Ventilation
When the selector switch is positioned to vent, the red
light will NOT be on. The fan motor will start, but the
igniter will not spark, nor will ignition occur. This
feature is used typically when heat is not needed, but
air circulation is required. To discontinue the
ventilation feature, position the switch to off or heat,
or use the interconnected contacts (customer
supplied) to accomplish this task.
C. Off
Position the switch to midpoint.
5.
The gas control valve in this heater is a two stage
control. When a call for heat occurs, the valve will
o p e n to i t s f i r s t s t a g e r a te . D e p e n d i n g u p o n
temperature requirements and temperature control
setting, the valve will then either remain at first stage
heat rate before the temperature control is satisfied,
or the valve will open completely to its second stage
capacity. If the valve opens to its second stage
capacity, it is designed to revert back to its first stage
heat rate before controller shuts heater down.
6.
Do not exceed input rating stamped on nameplate or
m a n u fa c t u r e r ’ s r e c o m m e n d e d b u r n e r o r i f i c e
pressure for size orifice(s) used. Make certain that
the primary air supply to main burner is open and
free of dust, dirt and debris for complete, proper
combustion.
ON
OFF
14
Start-Up Instructions
HEAT
(UP)
OFF
(MID)
VENT
(DOWN)
