Maxon General Service Electromechanical Shut-Off and Vent ...

1 MCORPORATIONMUNCIE, INDIANA, USAINDUSTRIAL COMBUSTION EQUIPMENT AND VALVESM axon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior ValvesPage 6100-S-1 Installation InstructionsB. Teflon tape acts as a lubricant and greatlyreduces the pipe wrench turning force re-quired to seal the care not to overtighten threads asthis can damage the Good piping practice dictates that piping beindependently supported, so that valve bodiesare not placed in a bind. In addition, largevalves may require Clean pipe lines of foreign materials beforeinstalling valve into new installations, a gas filter or strainer shall beinstalled in the fuel gas piping to protect thedownstream safety Shut-Off NFPA (1999)NFPA (1999)NFPA (1999)If normal inlet pressure to the fuel pressure regula-tor immediately upstream from the valve exceedsthe valve s pressure rating, a relief valve shall beprovided and it shall be vented to a safe NFPA (1999)NFPA (1999)NFPA (1999)E.

2 Mount valve so that open/ shut windowindicator [1] will be visible to your operatingpersonnel. The open/ shut window indicatorshould never face downward. With Maxonelectro-mechanical top assemblies, the motoraccess side plate [2] should always bevertical to the ground. Valves are usuallyinstalled in horizontal piping; however, other1/001. Read complete instructions before proceedingand do not discard packing materials until any/allloose items are located. Also, make sure that theinstallation of the Maxon valves will be in compli-ance with all applicable governmental, insuranceand/or agency requirements or codes, such asNFPA-70, National Electric Code, CSA ,Canadian Electric Code, General to shipment, each valve is operatedelectrically and cycled at rated and 1-1/2rated pressure while being leak tested.

3 EveryMaxon valve is operationally tested andmeets the requirements of ANSI VI Seat Leakage when it leaves Inspect your valve for any shipping Maxon Corporation with the valve sserial number (printed on the valve's name-plate) for replacement and/or repair Read the nameplate on your valve. Thisgives the maximum pressure, temperaturelimitation, voltage requirements and serviceconditions of your specific valve. DO NOTexceed nameplate Select mounting location carefully. YourMaxon valve is designed to operate for manyyears if installed in a location that is cool,clean and Pipe the valve in the direction of the flow arrow[3] on the valve body. The Maxon valve body canshut off flow in one direction Remove all thread and flange protectorsbefore installing valve in your Service , INDIANA, USAINDUSTRIAL COMBUSTION EQUIPMENT AND VALVESM axon practices a policy of continuous product improvement.

4 It reserves the right to alter specifications without prior 6100-S-2 Electro-Mechanical ValvesInstallation Instructions (cont'd.)orientations are acceptable, subject to theabove limitations. The top assemblies of allMaxon valves are field rotatable to allowinstallations involving conflicts with thesemounting Main system Shut-Off should always use amanual leak-tight upstream fuel Time lag between valve action and fluid flow(or flame response) is reduced if valve islocated near the burner (or outlet).4. Wire the valve in accordance with all applicablecodes and standards. Supply voltages must agreewith valve s nameplate voltage within -15%/+10%AC or DC for proper operation. For electricalwiring schematics, refer to appropriate Maxoncatalog literature and/or the wiring schematicdiagram affixed inside your valve s access coverplate or in the terminal block cover The Maxon valve must be electricallyinterlocked with your safety-limit devices inaccordance with all applicable codes, stan-dards, and the authority having jurisdictionover the safety requirements for your overallsystem installation.

5 Normally, Maxon valvesare electrically wired in series with all of yoursafety-limit devices. Therefore, any onedevice can cause the valve to react. Eachvalve was production tested when manufac-tured. If it now appears inoperative, makesure it is being powered properly from andthrough your control Maintain integrity of Maxon top assemblyenclosure by using dust and water-tightelectrical connectors. Use cable-sealing gripsand strain-relief loops for any cord or internal sealing materials on all conduitconnections. Moisture can have a harmfuleffect on valve internals if permitted to enterthrough wiring connectors. Make sure that allaccess cover plates are in place and securelyfastened. All cover screws should be tight-ened using an alternate cross corner tighten-ing pattern to the values shown all covers are torqued at time of produc-tion testing, torque should be recheckedperiodically to ensure adequate Pre-operational exercising:Prior to initial fluid flow start-up and with upstreammanual cock still closed, operate the valveelectrically for 10-15 cycles.

6 This not only pro-vides an electrical check, but also wipes valvebody disc and seat free of accumulated )sbl-ni(euqroTrevoCrotarepO42-01#52srevo csseccarehtollA02-" " , INDIANA, USAINDUSTRIAL COMBUSTION EQUIPMENT AND VALVESM axon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior ValvesPage 6100-S-3 Installation Instructions (cont'd.)Top Assembly RotationMaxon valves can and should be ordered in a con-figuration compatible with planned piping, but if open/ shut indicator window is not visible and/or valve orienta-tion is not proper, the top assembly can be rotated in90 increments around the valve body centerline axisby the following procedure:1. shut off all electrical power and close off up-stream manual Remove wiring access cover plate [2] anddisconnect power lead wires.

7 (Tag carefully for laterre-assembly.)3. Remove conduit and electrical Note physical position of any signal switchactuator wands on auxiliary signal switches (seeswitch arrangement sketch). the two body bolts [4] screwed up fromthe bottom to 1/4 inch. DO NOT completely re-move. These bolts secure the valve body [3] to thevalve s top assembly housing [5].6. Gently lift the top assembly [5] (not more than1/4" in height); just enough to break the sealbetween the valve body assembly and the rubbergasket adhering to the bottom of the top : LIFTING TOO FAR MAY DISLODGESOME SMALL PARTS INSIDE THE TOPHOUSING, REQUIRING COMPLEX RE-ASSEMBLY AND RETESTING BY TRAINEDFACTORY PERSONNEL. Series 808 Series 25300with socket weldednipples & flangesSeries 5000-CP1/99 Wiring DiagramAuxiliary Switch ArrangementA Number Coded WiresH Mounting ScrewsB Rubber GrommetI Spring Retainer ExtensionC Mounting ScrewsJ Switch WandD Normal (de-energized)K Actual (energized)Position SwitchPosition SwitchE Insulating BarrierL Switch WandF Bracket Mounting PadM Switch Mounting BracketG Drive Pin & Locating HoleN GasketmCORPORATIONMUNCIE, INDIANA, USAINDUSTRIAL COMBUSTION EQUIPMENT AND VALVESM axon practices a policy of continuous product improvement.

8 It reserves the right to alter specifications without prior 6100-S-4 Electro-Mechanical ValvesInstallation Instructions (cont'd.)Top Assembly Rotation (cont'd.)7. Remove the two body bolts [4] screwed upfrom the bottom (were partially unscrewed instep 5).8. Carefully rotate top assembly to the desiredposition in a plane parallel to the top of the valvebody casting. Rotate the top housing about 30 beyond this position, and then rotate it the top housing back down onto thevalve body casting. This should align the open/ shut indicator with its window and provide properalignment of the internal Realign holes in valve body casting with thecorresponding tapped holes in the bottom of thetop assembly housing. Be sure the gasket is stillin place between the body and top Reinsert the body bolts up from the bottomthrough the body and carefully engage threads ofthe top assembly.

9 Tighten Reconnect conduit and electrical leads, thencheck that signal switch wands are properlypositioned and that open/ shut indicator movesfreely. Failure to correct any such misalign-ment can result in extensive damage to theinternal mechanism of your Energize valve and cycle several times fromclosed to full open position. Also electrically tripthe valve in a partially opened position to provevalve operates Replace and secure side cover access plateand place valve in top assembly positions are available formost Maxon valves. When looking at the open/shutwindow indicator of an electro-mechanical valveassembly, the motor (for motorized version), or theoperating handle (for manual version), will be on theright side of the top assembly. The valve body is onthe bottom.

10 From this view, the unidirectional valveAlternate Top Assembly PositionsrevoCeuqroTrevoCrotarepO42-01#s bl/ni52srevocsseccarehtollA02-" " " " and the arrow on the valve body casting pointsin direction of fluid flow: to the right (position "R"), tothe left (position "L"), towards you (position "TO") oraway from you (position "AW"). With smaller sizeswinging gate valve bodies, only position "R" andposition "TO" may be used. R L AW TO mCORPORATIONMUNCIE, INDIANA, USAINDUSTRIAL COMBUSTION EQUIPMENT AND VALVESM axon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior InstructionsElectro-mechanical manual reset valves requiretwo positive actions to open: a half rotation ofhandle to latch internal mechanism, and a reversedhalf rotation of handle to open valve.