North American TwinBed ® II 8663B Cycle Control Manifold for Pair of Burners
Trouble-Shooting 8663B
TROUBLE-SHOOTING GUIDE
1. If a solenoid valve fails to operate, press the manual override button on top of the operator to indicate whether the trouble is electrical or mechanical. If the valve can be operated using the manual override button, the problem is likely to be electri- cal. If this condition exists, the coil can be removed by disconnecting the wiring and removing the coil retainer nut. Reverse the procedure when installing the new coil. If the valve fails to operate using the manual override button, proceed to step 2. 2. If the coil is energized but the designated port is not being pressurized, the valve may be leaking. The problem may be that the valve is loose from the manifold and needs tightening or that the seals and gaskets require replacing. A repair kit is available. 3. If a solenoid valve is de-energized but is not venting, check the muffler/silencer on the manifold block for that port. It may be plugged. Replace the muffler as re- quired.
(See Recommended Spare Parts 8663B for replacement part numbers).
For General Information, see Bulletin 8663B For Dimensions, see Dimensions 8663B For Recommended Spare Parts, see Spare Parts 8663B For Installation, Operation, and Maintenance Instructions, see Installation 8663B
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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