Lochinvar 000 - 500 Installation And Service Manual page 27

OPERATING INSTRUCTIONS
1. STOP! Read the safety information first.
2. Remove the control panel door.
3. Set the thermostat to the lowest setting (OFF).
4. Turn off all electrical power to the appliance.
5. This appliance is equipped with an ignition device
which automatically lights the pilot. DO NOT try
to light the pilot by hand.
6a. 45,000 - 135,000 and 399,999 - 500,000 Btu/hr
models, rotate the gas control knob on the gas
valve clockwise to the "OFF" position.
6b. 180,000 - 360,000 Btu/hr models, rotate the gas
control knob on the gas valve clockwise to the line
on the collar around the knob. Depress the knob
and continue rotation to the "OFF" position.
7. Wait five (5) minutes to clear out any gas, then
smell for gas, including near the floor. If you smell
gas, STOP! Follow the steps in the "
" section in the safety information
on page 26. If you do not smell gas go on to the
next step.
8a. 45,000 - 135,000 and 399,999 - 500,000 Btu/hr
models, rotate the gas control knob on the gas
valve counterclockwise to the "ON" position.
8b. 180,000 - 360,000 Btu/hr models, rotate the gas
control knob on the gas valve counter-
clockwise to the line on the collar around the knob.
Al low the knob to "pop" up, and continue rotation
to the "ON" position.
9. Turn on all electric power to the appliance.
10. Set the thermostat to the desired setting.
11. Re-install the control panel door.
12. If the appliance will not operate, follow the
instructions
call your service technician or gas supplier.
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to the OFF position.
2. Turn off all electric power to the appliance if
service is to be performed.
3a. 45,000 - 135,000 and 399,999 - 500,000 Btu/hr
models, rotate the gas control knob on the gas
valve clockwise to the "OFF" position. Do not
force.
3b. 180,000 - 360,000 Btu/hr models, rotate the gas
control knob on the gas valve clockwise to the line
on the collar around the knob. Depress the knob
and continue rotation to the "OFF" position. Do
not force.
Should overheating occur or the gas fail to shut off,
turn off the external manual gas valve to the
appliance.
SAFETY SHUTOFF TEST FOR SPARK
IGNITION PILOT SYSTEM
1. Turn "OFF" gas supply to the appliance.
2. Turn thermostat to highest setting.
3. Turn electric power "ON".
4. Pump relay pulls in to start pump.
5. The ignition will begin sparking at the pilot.
6. The ignition module will lock out after the 90
second trial for ignition period on the 45,000 thru
399,999 Btu/hr models and after the 15 sec ond
trial for ignition period on the 500,000 Btu/hr
model.
7. Immediately call a qualified serviceman or
in stall er to repair an ignition system that fails to
and
lock out and properly shut down burner operation.
8. After successful completion of the test, re ad just
the thermostat to normal setting.
9. Turn "ON" gas supply.
10. Turn power "OFF" then "ON" to reset ignition
module.
27
WARNING