Pitco Frialator L80-029 appliance, property damage or personal injury, Event, Duration, seconds

Follow this procedure to check proper operation of the Pitco Self-Cleaning Burner System:

WARNING

Ensure that tank is filled to the level line with oil before turning the

appliance on. Turning the appliance on with an empty or partially filled tank

could cause an unsafe condition, which could lead to damage to the

appliance, property damage or personal injury.

a.Reconnect the power supply and turn on the gas supply to the appliance.

b.Energize the unit and check the gas delivery system and Pitco Self-Cleaning Burner System for gas leaks by applying liquid leak detector or a solution of soapy water to all gas joints and watching for bubbles at the joints.

c.If you detect bubbles at any gas joint, turn the appliance off, disconnect the power supply and turn off the gas supply immediately. Retighten any joints that show signs of leaking and repeat steps a, b and c until no leakage is detected. If you do not detect any leaks, proceed to step d.

d.Turn appliance on and observe its behavior. The appliance will execute a Cleaning Cycle every time it is energized from on “OFF” state, so you may turn the appliance off and then on again to verify proper execution of the Cleaning Cycle. Refer to the below table to verify proper Cleaning Cycle execution

Event	Duration	Indication
Turn appliance “ON”	N/A	Control Illuminates, pilot sparks and ignites. Pre-Purge
		pulse is initiated.
Pre-Purge Pulse	2 seconds	Appliance operates briefly and stops. Pilot remains lit.
Interwaiting period 1	5 seconds	Appliance does not operate. Pilot remains lit.
		Main valve operates, lighting main burners. SCBS valve
Cleaning Pulse	6 seconds	operates, feeding gas to the SCBS Arm. The SCBS arm
		ignites, initiating a brief burn at the main burner orifice of
		each burner.
Interwaiting period 2	8 seconds	The Main and SCBS valves de-energize for this period.
		The pilot remains lit.
		The appliance operates normally and begins to heat up.
Normal operation	N/A	The SCBS Valve remains de-energized until power to
resumes		the appliance is recycled. There is no flame on the
		SCBS Arm. There is no burn at the main burner orifices.

With the Pitco Self-Cleaning Burner System installed, the appliance should behave as outlined in the above table. A Cleaning Cycle will execute every time the appliance is turned “ON” from an “OFF” state. The thermal cut out switch is designed to disable the appliance if the Self Cleaning Burner System malfunctions and remains activated for an extended period of time or if there is a downdraft into the flue or a blocked flue situation.

Follow this procedure to adjust and verify proper operation of an appliance using flue baffles (McDonald’s models MG2 and MG2T):

WARNING

If the appliance you are upgrading is equipped with flue baffles, it may be necessary to adjust the baffle’s opening to restore proper operation of the appliance.

If the model you are upgrading is an MG2 or MG2T, it may be necessary to adjust the flue baffle opening to restore proper operation of the appliance’s combustion system. Flue baffles are used when the appliance is direct coupled to an exhaust hood, the flue baffle balances the exhaust draw on the combustion system.

When operating properly, the burners should exhibit light blue flame and generate a mild, consistent roar. It is possible to view the burner flame on the center two burners by peeking sideways into the opening on the air collars near the pilot. If, during operation the burner flames appear to be lifting or pulsing, the draw of the hood may be too powerful and the baffle will need to be adjusted to a more restrictive setting. Lifting or pulsing burners can usually be heard when the

L80-029 Rev 5 10/07 10