
GAS-FIRED HOT WATER BOILERSINSTALLATION, OPERATION & MAINTENANCE MANUAL P/N 240009047, Rev. B [08/2012]WPSB SERIES IIAn ISO 9001-2008 Certified Co
10Figure 5 - Bypass Piping - Circulator On SupplyBYPASS PIPING REQUIRED FOR HIGH MASS (LARGE WATER CONTENT) SYSTEMSCONNECTING SUPPLY AND RETURN PIPING
11Boilers connecting to gas vents or chimneys, vent installa-tions shall be in accordance with “Venting of Equipment”, of the National Fuel Gas Code,
12Removing Existing Boiler From Common Venting SystemWhen an existing boiler is removed from common venting system, common venting system is likely to
13VENT DAMPER OPERATIONFigure 7 Figure 8For safe, effi cient operation, vent damper and all fl ue product carrying areas of appliance must be checked an
14GAS SUPPLY PIPINGCheck Gas SupplyGas pipe to your boiler must be correct size for length of run and for total BTU per hour input of all gas utilizat
15ELECTRICAL WIRINGElectrically bond boiler to ground in accordance with requirements of authority having jurisdiction. Refer to Na-tional Elec
16WIRING DIAGRAMS Figure 11 - Electronic Ignition Control WARNINGModifi cation, substitution or elimination of factory equipped, supplied or specifi ed
17STARTING YOUR BOILERFILLING SYSTEM WITH WATER• Close air vents on all radiation units. Open valves to these units. • Verify boiler and expansion tan
18LIGHTING INSTRUCTIONSOFFONINLETGAS CONTROL KNOBPILOT ADJUSTMENT(UNDER CAP SCREW)PILOT OUTLETOUTLETWIRINGTERMINALS (2)INLETPRESSURE TAPTERMINALS (2)G
19OPERATING YOUR BOILERAUTOMATIC GAS VALVEAutomatic Gas Valve opens or closes according to heat requirements of thermostat and temperature limit contr
2DIMENSIONSDimensionsBOILER MODEL NUMBERDIMENSIONS (INCH.)Boiler Volume GallonFLUE DIAMETER“A” WIDTHWPSB-3 5 11¼ 6.3WPSB-4 6 14½ 8.1WPSB-5 6 17¾ 9.9WP
20OPERATING YOUR BOILERCHECK THERMOSTAT OPERATIONA. When set above temperature indicated on thermostat, boiler should ignite. B. Verify thermostat tu
21OPERATING THE BOILER - SYSTEM START-UP1 HI TEMP illuminates when boiler water temperature reaches high limit setting. Remains lit until water tempe
22 OPERATING THE BOILER - SYSTEM START-UPTable 1 - TroubleshootingBurner Will Not FireNo or Insuffi cient Domestic Hot WaterIf installed with indirec
23EQUIPMENT AND OPTIONAL ACCESSORIES - WHAT THEY DOSERVICE HINTSYou may avoid inconvenience and service calls by checking these points before you call
24MAINTAINING YOUR BOILERBURNERSBeginning of heating season visually check pilot end main burner fl ames. See page 19SAFETY RELIEF VALVETest safety rel
25EQUIPMENT AND OPTIONAL ACCESSORIES WARNINGBurn and scald hazard. Safety relief valve could discharge steam or hot water during operation.
26BLOCKED VENT SAFETY SWITCH(BLOCKED VENT SAFETY SHUTOFF)Blocked vent safety switch is manual reset disc thermostat with fi xed setpoint (340°F), and n
NOTES
DUNKIRK BOILERS2201 Dwyer Avenue, Utica NY 13501web site: www.ecrinternational.com
3BOILER RATINGS AND CAPACITIES Table 1 - Ratings and CapacitiesBOILER MODEL NUMBER (1)† NATURAL GAS † PROPANE GAS AFUE Input (3) Mb
4TABLE OF CONTENTSIMPORTANT: Read the following instructions COMPLETELY before installing!!KEEP THIS MANUAL NEAR BOILERRETAIN FOR FUTURE REFERENCE WAR
5LOCATING THE BOILERMinimum Clearance DimensionsTable 2 - Minimum ClearancesAlcoveTop 6” (152mm)Rear 6” (152mm)Control Side 7” (178mm)Opposite Side 6”
6VENTILATION & COMBUSTION AIRProvide combustion air and ventilation air in accordance with the section “Air for Combustion and Ventilation,” of th
7CONNECTING SUPPLY AND RETURN PIPINGRELIEF VALVEDISCHARGE LINECheck local codes for maximum distance from fl oor or allowable safe point of discharge.W
8CONNECTING SUPPLY AND RETURN PIPING WARNINGBurn and scald hazard. Safety relief valve could discharge steam or hot water during operation. In-stal
9Figure 4 - Chilled Water PipingFigure 3- Typical Hot Water PipingCONNECTING SUPPLY AND RETURN PIPING
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