CleaverBrooks profire q, Installation, Operation And Maintanance

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Maintenance
5-4 750-370
ProFire Q Series Manual
5.9 — Burner Mounting Inspection
The seal between the burner flange and furnace front plate must not permit combustion gases to escape. Periodic
inspection is important. Replace the gasket if necessary. Inspect the burner head for signs of discoloration. A change
the head color paint might indicate gas leakage between the burner flange and the boiler refractory. If leakage occurs,
refer to Chapter 2, Section 2.4, for proper sealing procedure.
5.10 — Gas System
5.10.1 — Motorized Main Gas Valves
Should the valve fail to operate, check for voltage at the valve. Make certain that the main shutoff cock is closed prior
to testing. The actuator is not field repairable nor should it be disassembled. Replace the actuator if the valve fails to
operate. After replacement, cycle the valve with the fuel shutoff to determine that it opens and closes. If the valve has a
visual indicator, observe its position for correct operation.
5.10.2 — Solenoid Valves
A slight hum from the solenoid is normal when the coil is energized. Should the valve fail to operate, check that there
is voltage at the valve coil. If there is no voltage at coil, check for loose wiring connections. If there is proper voltage at
the valve coil and the valve still fails to open, replace the coil. Refer to manufacturer's bulletin for correct procedure in
coil replacement.
Should it become necessary to replace the complete valve, be sure that the flow is in the direction of the arrow on the
body.
Test for gas leaks and check valve action several times to ensure proper operation before attempting to relight the
burner.
5.11 — Electrical System
Because of the many types of flame safeguard systems applicable to this equipment, complete descriptions of all burner
electrical systems are beyond the scope of this manual. An individual electrical schematic drawing is shipped with each
burner and complete operation and troubleshooting instructions are available from the various flame safeguard system
manufacturers.
5.11.1 — Electric Motors
Motor supply voltage must not vary more than 10 percent from nameplate ratings. At initial startup and at least once a
year thereafter, check the motor current with a meter while the burner is in high fire position. If the reading exceeds the
nameplate rating plus service factor, determine the cause and correct it immediately. In dusty locations, clean the motor
regularly to assure adequate cooling. Lubricate in accordance with the manufacturer's instructions.
Disconnect all power before servicing the valves.
! Caution