User Manual

Omega II
®
Installation, Operation & Maintenance
Combustion Research Corporation Page 31
ELECTRODES.) Check to see if high voltage leaks
occur at porcelains and high voltage leads.
4. If ignition arc is not present or sporadic, turn off power
and check gap. It should be approximately .10 inch.
(DO NOT TRY TO MEASURE HIGH VOLTAGE
OUTPUT.) High voltage wire should not touch casing
as grounding can occur when wires are wet.
5. If ignition wires and electrodes are set as above, and
power is shown but no ignition arc is present, the
ignition assembly is defective and the electronics should
be replaced.
6. Remove gas jet, inspect for possible obstruction or
incorrect orifice size.
7. Disconnect power and check terminals to be sure that
there are no loose spade connections or broken wires.
ELECTRONIC PROVEN SPARK IGNITION
CONTROL WITH 100% LOCKOUT
APPLICATION
The solid state ignition control will ignite the gas by spark.
The gas is ignited and burns during each running cycle.
Should a loss of flame occur, the main valve closes and a
retry for ignition will commence. This control has an
internal 100% lockout function to completely shut down the
system should the gas fail to ignite within 30 seconds. To
initiate a re-ignition trial when lockout occurs, the power
must be interrupted for 5 minutes.
The solid state ignition control must not be subjected to
temperatures below –40°F (-40°C) or above 150°F (66°C).
CAUTION: When it is necessary to replace a main gas
valve used with this control, the replacement valve must
have the same valve closing time as that approved on the
original equipment by the recognized testing agency.
GAS SUPPLY FAILURE ON START
1. Thermostat calls for heat.
2. Air flow is proven.
3. Valve and spark are energized after pre-purge.
4. After a 30 second trial for ignition, the system will
lockout to completely disarm the system.
5. In order to initiate a re-ignition trial, the power must be
interrupted for 5 minutes.
POWER INTERRUPTION ON START
1. No gas will flow during power interruption.
2. Normal sequence will resume when power is restored.
POWER INTERRUPTION DURING RUNNING
CYCLE:
1. Valve is de-energized.
2. Valve and spark are energized when power is restored
and normal sequence will resume.
TURNING OFF THE APPLIANCE
VACATION SHUTDOWN -- Set the thermostat to the
desired room temperature while you are away.
COMPLETE SHUTDOWN -- Push the gas control knob in
slightly and turn clockwise
to OFF. Do not force.
Appliance will completely shut off. Follow the Lighting
Procedures above to resume normal operation.
IF MAIN BURNER WILL NOT COME ON WITH CALL FOR
HEAT:
1. Ensure gas control knob is in the ON position (rotate
counter clockwise
).
2. Adjust thermostat several degrees above room
temperature.
3. Using AC voltmeter, measure voltage across MV
terminals at gas control.
4. If no voltage is present, check control circuit for proper
operation.
5. If proper control system voltage is present, replace gas
control.
STOP: READ ALL
WARNINGS
The flame is lit automatically. If the appliance does not turn
on when the thermostat is set several degrees above room
temperature, follow these instructions:
1. Set the thermostat to its lowest setting to reset the
safety control.
2. Disconnect all electric power to the appliance.
3. Remove the control access panel.
4. Turn gas control knob clockwise
to the OFF
position, DO NOT FORCE.
5. Wait 5 minutes to clear out any unburned gas. If you
then smell gas, STOP! Follow Step 3 in the following
Warning statement. If you do not smell gas, continue
with the next step.
6. Turn the gas control knob counter clockwise
to the
ON position.
7. Replace the control access panel.
8. Reconnect all electric power to the appliance.
9. Set the thermostat to the desired setting.
10. If the appliance does not turn on, turn the gas control
knob counter clock wise
to OFF and contact a
qualified service technician for assistance.