Crown Boiler CWI172 7000DERHC SERIES GAS VALVES INTERMITTENT PILOT, Operating Instructions

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7000DERHC SERIES GAS VALVES (INTERMITTENT PILOT)

LIGHTING INSTRUCTIONS FOR BOILERS EQUIPPED WITH ROBERTSHAW

7000DERHC SERIES GAS VALVES (INTERMITTENT PILOT)

FOR YOUR SAFETY READ BEFORE LIGHTING Manual background

WARNING: If you do not follow these instructions exactly, a fire or explosion

may result causing property damage, personal injury or loss of life.

A.This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand.

B.BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electric switch; do not use any phone in your building. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

Manual background If you cannot reach your gas supplier, call the fire department.

C.Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

D.Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

OPERATING INSTRUCTIONS

1.STOP! Read the safety information above on this label.

2.Set the thermostat to lowest setting.

3.Turn off all electric power to the appliance.

4.This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand.

POSITION

INDICATOR

OFF

ON

GAS

 

 

INLET

GAS CONTROLKNOB

SHOWNIN"OFF" POSITION

5.Remove front access panel.

6.Rotate the gas control knob clockwise Manual background to OFF.

7.Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you then smell gas, STOP! Follow “B” in the safety inform- ation above on this label. If you don’t smell gas go to the next step.

8.Rotate the gas control knob counter clockwise

Manual background to “ON”.

9.Replace front access panel.

10.Turn on all electric power to the appliance.

11.Set thermostat to desired setting.

12.If the appliance will not operate, follow the instructions “To Turn Off Gas To Appliance” and call your service technician or gas supplier.

TO TURN OFF GAS TO APPLIANCE

1.Set the thermostat to lowest setting.

2.Turn off all electric power to the appliance if service is to be performed.

3.Push in gas control knob slightly and turn

clockwise Manual background to “OFF”. Do not Force.

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Contents CWI Series Gas-Fired Natural Draft Water Boilers INSTALLATION INSTRUCTIONSModels These instructions must be affixed on or adjacent to the boilerI Product Description Table of ContentsII Specifications FIGURE 1 CWI BOILERS - GENERALCONFIGURATIONTABLE 1 CWI SPECIFICATIONS IV Locating the Boiler III Before InstallingV Air for Combustion and Ventilation For Buildings of Other than Unusually Tight Construction ForBuildingsofUnusuallyTightConstructionExample FIGURE3BOILERINSTALLEDINCONFINEDSPACE, ALL AIR FROM INSIDE FIGURE 4 ALL AIR FROM OUTDOORS, VENTILATED CRAWL SPACE AND ATTICFIGURE 5 ALL AIR FROM OUTDOORS VIA VENTILATED ATTIC FIGURE 6 ALL AIR FROM OUTDOORS, USING OPENINGS INTO BOILER ROOM VI Venting Removing an Existing Boiler from a Common Chimney FIGURE 9 VENT DAMPER INSTALLATION DETAILS FIGURE8 CWI BOILERTYPICALVENTSYSTEM INSTALLATION AND COMPONENTSVII Gas Piping VIII System Piping StandardPipingDANGER Piping for Special Situations 1413BOILERSIDEPIPING FIGURE 11 STANDARD BOILER PIPING FIGURE 12 INDIRECT WATER HEATERFIGURE13 BOILERBYPASSPIPING FIGURE15 BOILERPIPINGWITHCHILLER FIGURE14 ISOLATIONOFBOILERFROMSYSTEMWITHAHEATEXCHANGERIX TANKLESS HEATER PIPING A mixing valve does not eliminate the risk of scalding Feel water before showering or bathingFIGURE 17TANKLESSHEATERPIPING SingleZoneWiring IX WiringFIGURE 20 WIRING DIAGRAM, STANDING PILOT WITH TANKLESS HEATER Wiring Variations FACTORY BOILER WIRING NOT SHOWN - SEE FIGURES 18 FIGURE 22 CIRCULATOR ZONEWIRING USING HONEYWELLR845AsFIGURE23ZONEWIRINGUSINGHONEYWELLV8043FZONEVALVES FACTORYWIRING NOT SHOWN - SEE FIGURES 18CWI Control System - Sequence of Operation Sequence of Operation, Standing Pilot, Less Tankless HeaterSequence of Operation, Standing Pilot, With Tankless Heater Sequence of Operation, Intermittent Ignition, With Tankless Heater Sequence of Operation, Intermittent Ignition, Less Tankless HeaterSafety Control Operation - Standing Pilot and Intermittent Ignition XI Start-up and CheckoutFIGURE 24 STANDING PILOT BURNER FLAME 2726Page Page LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATINGTO TURN OFF GAS TO APPLIANCE LIGHTING INSTRUCTIONS FOR BOILERS EQUIPPED WITH HONEYWELLFOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING INSTRUCTIONS FOR BOILERS EQUIPPED WITH ROBERTSHAW7000ERHC SERIES GAS VALVES STANDING PILOT OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE LIGHTINGTO TURN OFF GAS TO APPLIANCE VR8204 AND VR8304 SERIES GAS VALVES INTERMITTENT PILOT7000DERHC SERIES GAS VALVES INTERMITTENT PILOT FIGURE 28b GASVALVEDETAIL-ROBERTSHAW 7000DERHC INTERMITTENT IGNITION FIGURE 27a GASVALVEDETAIL-HONEYWELLVR8200ORVR8300STANDINGPILOTXI Service and Maintenance Heat Exchanger Cleaning Procedure XIII Troubleshooting C1&C2? STARTNational Fuel Gas Code 5&6 onL2 ? STARTC1&C2? T&TV?C2 and Caution Read page 36 before attempting to use this chart Standing Pilot Ignition System Troubleshooting ChartIntermittent Ignition System Troubleshooting Chart XIV PARTS Page These Valves Piped in Series to Provide Redundent Shut-off 1/4 Pilot Tubing Used with Robertshaw Valves40mm BURNERS ONLY Page KEY # Page A. Before Installing Appendix A Knockdown Boiler Assembly InstructionsB. BaseAssembly Preparation C. Heat Exchanger and Flue Collector InstallationFIGUREA1 BASE, HEAT EXCHANGER, FLUE COLLECTORASSEMBLY E. Control and Trim Installation D. Gas Valve InstallationFIGURE A2 JACKET INSTALLATION G. Complete Installation F. Electrical Wiring ConnectionsFIGURE A3 TAPPING LOCATIONS SEE TEXT FOR TAPPING USES P.O. Box 3633 I. StreetPhiladelphia