14
Guardian LP or Natural Gas Heater
7. 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 seconds
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.
AD Models
8. After five seconds with motor running, the igniter
should spark with ignition occurring.
9. The ignition control will make up to three trials for
ignition. Each trial takes approximately ten (10) sec-
onds. The first three trials occur within 30 seconds if
ignition is not achieved. A 15 minute wait period will
then begin after the third trial has taken place. After
the 15 minute time span has elapsed, the heater
will then automatically restart with three more trials
occurring. If ignition still does not occur, the will "lock
out" and a three time flash code will be indicated by
the control module's LED.
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.
Shut-Down Instructions
If the heater is to be shut-down for cleaning,
maintenance or repair, follow steps 1-4. 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 thermostat to OFF or no heat position.
4. Disconnect the heater from the electrical supply.
Owner's Manual • Guardian
Cleaning Instructions
WARNING
Fire, Burn, and Explosion Hazard
■ This heater contains electrical and mechanical
components in the gas management, safety
and airflow systems.
■ Such components may become inoperative or
fail due to dust, dirt, wear, aging, or the cor-
rosive atmosphere of an animal confinement
building.
■ Periodic cleaning and inspection as well as
proper maintenance are essential to avoid
serious injury or property damage.
1. Before cleaning, close fuel supply valve to
heater and disconnect electrical supply.
2. The heater should have dirt or dust removed
periodically:
a. After each flock or between building re-popula-
tion, give the heater a general cleaning using
compressed air or a soft brush on its interior
and exterior. At this time, dust off the motor
case to prevent the motor from over-heating
and shutting the heater down.
b. At least once a year, give the heater a
thorough cleaning. At this time, remove the fan
and motor assembly and brush or blow off the
fan wheel, giving attention to the individual fan
blades. Additionally, make sure the burner air
inlet venturi ports and the throat of the casting
are free of dust accumulation and the area
between the heat chamber top and inside case
is also free of dust.
c. When washing with water, observe and obey
the Warning within these Cleaning Instruc-
tions. This same Warning is also supplied on
the heater.