DeLUX DPX12T, Installation & Operation Manual

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Gas Electro-mechanical Valves
w w w . m a x o n c o r p . c o m
combustion systems for industry
Maxon reserves the right to alter specifications and data without prior notice.
© 2009 Copyright Maxon Corporation. All rights reserved.
10 - 30.1 - 37
E - m - 10/09
Maintenance instructions
MAXON electro-mechanical valves are endurance tested far in excess of the most stringent requirements of the various approval
agencies. They are designed for long life even if frequently cycled, and to be as maintenance-free and trouble-free as possible. A
valve operational test should be performed on an annual basis. If abnormal opening or closing is observed, the valve should be
removed from service and your MAXON representative should be contacted. (See MAXON Technical Document 10-35.1.)
Valve leak test should be performed on an annual basis to assure continued safe and reliable operation. Every MAXON valve is
operationally tested and meets the requirements of FCI 70-2 Class VI Seat Leakage when in good operable condition. Zero
leakage may not be obtained in the field after it has been in service. For specific recommendations on leak test procedures, see
MAXON Technical Document 10-35.2. Any valve that exceeds the allowable leakage, as set forth by your local codes or insurance
requirements should be removed from service and your MAXON representative should be contacted.
Actuator assembly components require no field lubrication and should never be oiled.
Auxiliary switches, solenoids, motors, clutches or circuit boards may be replaced in the field.
If foreign material or corrosive substances are present in the fuel line, it will be necessary to inspect the valve to make certain it is
operating properly. If abnormal opening or closing is observed, the valve should be removed from service. Contact your MAXON
representative for instructions.
Operator should be aware of and observe characteristic opening/closing action of the valve. Should operation ever become
sluggish, remove valve from service and contact MAXON for recommendations.
Address inquiries to MAXON. Local worldwide offices may be located at www.maxoncorp.com. Include valve serial number and
nameplate information.
Do not attempt field repair of valve body or actuator. Any alterations void all warranties and can create
potentially hazardous situations.