R7140G,L,M Burner Control Modules - ES2 Inc.

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R7140G,L,M BURNER CONTROL MODULESTestNo.R7140 Models6 All L1-5 — 1. Ignition spark (if ignitiontransformer is connected toterminal 5).2. Automatic pilot valve opens (ifconnected to terminal 5).NOTE:Refer to wiring diagramof system being tested.7 L1-6 — Same as test no. 6 forconnections to terminal 5. Ifusing direct spark ignition, checkthe first stage fuel valve(s)instead of the pilot valve.8 L1-7 — Automatic main fuel valve(s)open.If using direct spark ignition on amodel with intermittent pilot onterminal 6, check the optionalsecond stage fuel valve, if used.9 L1-9 — Alarm (if used) turns on. 1. Alarm.10 R7140G,L L1-8and10-1111 R7140G,L L1-8and14-1112 R7140G,L L1-8and10-1113 R7140L L1-8and14-1113-L2 Firing rate motor drives open;zero volts at terminal 13 aftermotor starts driving open.13-L2 Firing rate motor drives closed;line voltage at terminal 13 aftermotor is in Low Fire position.15-L2 Firing rate motor drives open;line voltage at terminal 15 aftermotor is in High Fire position.15-L2 Firing rate motor drives closed;zero volts at terminal 15 aftermotor starts driving closed.14 R7140G,L 11-12 — 1. Raise setpoint of Series 90controller—firing rate motorshould drive toward open.2. Lower setpoint of Series 90controller—firing rate motorshould drive toward closed.15 R7140M withopen dampercontacts.16 R7140M withopen dampercontacts.17 R7140M withopen dampercontacts.Final AllTestJumpers Voltmeter14-11 — If damper motor is used, motordrives damper open.L1-8 13-L2 If damper motor is used, motordrives open; line voltage atterminal 13 after motor is in LowFire position.L1-8andL1-11Table 8. Static Checkout. (Continued)Normal Operation13-L2 If damper motor is used, motordrives open; zero volts atterminal 13.If Operation is Abnormal,Check the Items Listed Below1. Watch for spark or listen for buzz.a. Ignition electrodes are clean.b. Ignition transformer is okay.2. Listen for click or feel head of valve foractivation.a. Actuator, if used.b. Pilot valve.Same as test no. 6. If using direct sparkignition, check the first stage fuel valve(s)instead of the pilot valve.1. Listen for and observe operation of themain fuel valve(s) and actuator(s).2. Valve(s) and actuator(s).1. Low Fire Start Switch.2. Firing rate motor and transformer.1. Low Fire Start Switch.2. Firing rate motor and transformer.1. High Fire Purge Switch.2. Firing rate motor and transformer.1. Low Fire Start Switch.2. Firing rate motor and transformer.1. Series 90 Controller.2. Firing rate motor and transformer.Damper motor.1. Low Fire Start Switch.2. Damper motor.1. Low Fire Start Switch.2. Damper motor.CAUTIONEquipment Damage Hazard.Improper wiring can damage equipment.On completing these tests, open the master switch and remove all test jumpers from thesubbase terminal. Also remove bypass jumpers from the low fuel pressure limits (if used) toprevent equipment damage.66-1153—2 26
R7140G,L,M BURNER CONTROL MODULESSYSTEM CHECKOUTIMPORTANTPerform all Static Checkout Procedures in theapplicable relay module installation instructionsbefore starting these procedures.WARNINGExplosion Hazard.Can cause serious injury or death.Do not allow fuel to accumulate in the combustionchamber for longer than a few seconds without ignitingto prevent danger of forming explosive mixture.Close manual fuel shutoff valve(s) if flame is notburning at end of specified time.WARNINGElectric Shock Hazard.Can cause serious injury or death.1. Use extreme care while testing system. Line voltageis present on most terminal connections whenpower is on.2. Open master switch before removing or installingR7140 Relay Module.Make sure all manual fuel shutoff valve(s) are closed beforestarting initial lightoff check and Pilot Turndown tests.Do not put the system in service until you have satisfactorilycompleted all applicable tests in this section and any othersrecommended by the original equipment manufacturer.Limit trial for pilot to ten seconds. Limit the attempt to lightmain burner to two seconds after fuel reaches burner nozzle.Do not exceed manufacturer nominal lightoff time.CAUTIONEquipment Malfunction or Damage Hazard.Incorrect wiring can cause equipment damage.Each relay module type is unique. Using existingwiring on a relay module change can cause equipmentdamage.IMPORTANT1. If the system fails to perform properly, refer to theTroubleshooting section.2. Repeat all required Checkout tests after alladjustments are made. All tests must be satisfiedwith the flame detector(s) in their final position.Equipment RecommendedS7800A Keyboard Display ModuleVolt-ohmmeter (1M ohm/volt minimum sensitivity) with:• 0-300 Vac capability.• 0-6000 ohm capability.• 0-10 Vdc capability.Checkout SummaryTable 9 provides an overview of checkout steps performed foreach applicable system.See Installation Instructions for location of component partsand terminal locations.Table 9. Checkout Steps and Applicable Detection Systems.Checkout StepPilotedSystems DSI SystemsInfrared FlameDetectorsFlame RodSystemsUltravioletFlame DetectorsPreliminary Inspection X X X X XFlame Signal Measurement X X X X XInitial Lightoff Check for Proved PilotXInitial Lightoff Check for Direct Spark IgnitionXPilot Turndown TestXIgnition Interference TestXHot Refractory Saturation TestXHot Refractory Hold-in Test X X X X XIgnition Spark PickupXResponse to Other Ultraviolet SourcesXFlame Signal with Hot Combustion Chamber X X X X XSafety Shutdown Tests X X X X XPreliminary InspectionPerform the following inspections to avoid common problems.Make certain that:1. Wiring connections are correct and all terminal screwsare tight.2. Flame detector(s) is clean, installed and positionedproperly. Consult the applicable Instructions.3. Combination of amplifier and flame detector(s) iscorrectly used. See the amplifier specifications.4. Plug-in amplifier and purge card (if required) aresecurely in place.5. Burner is completely installed and ready to fire; consultequipment manufacturer instructions. Fuel lines arepurged of air.6. Combustion chamber and flues are clear of fuel and fuelvapor.27 66-1153—2
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R7140G,L,M Burner Control Modules - ES2 Inc.

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