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16

All electrical work must conform to local codes as well as 

the National Electrical Code, ANSI/NFPA-70, latest revision. 
Electric Power Supply
Prior to making any line voltage connections, service switch 

at boiler should be in the off position and the power turned 

off at the fuse box.
Run a separate 115 Volt circuit from a separate over 

current protective device in the electrical service entrance 

panel. This should be a 15 ampere circuit. A service switch 

has been provided and should be mounted to the Junction 

box located on the exterior boiler jacket. see Fig. 16-1 for 

diagram showing power supply connection points.
The boiler, when installed, must be electrically bonded 

to ground in accordance with the requirements of the 

authority having jurisdiction or, in the absence of such 

requirements, with the National Electrical Code, ANSI/NFPA 

70.
Run a 14 gauge or heavier copper wire from the boiler to 

a grounded connection in the service panel or a properly 
driven and electrically grounded ground rod.

Install Your Thermostat

NOTICE

All low volt interconnect wiring must be at 

least 18 AWG.

The thermostat location has an important effect on the 

operation of your boiler system. BE SURE TO FOLLOW THE 

INSTRUCTIONS INCLUDED WITH YOUR THERMOSTAT. Lo-

cate the thermostat about fi ve feet (5') above the fl oor on 

an inside wall. It may be mounted directly on the wall or on 

a vertically mounted outlet box. It should be sensing aver-
age room temperature.

THERMOSTAT LOCATIONS TO AVOID

DEAD SPOTS

HOT SPOTS

COLD SPOTS

Behind doors 

Concealed pipes

Concealed pipes 

or ducts

Fireplace

TV sets

Stairwells - draft s

Corners & 

alcoves

Radios

Doors - draft s

Lamps

Unheated room on 

other side of wall

Direct sunlight 

Kitchens 

Connect 24 Volt thermostat leads to the white (TW) 

and red (TR) wires located in service switch junction 

box, located on outer jacket of boiler see Fig.16-1 

for service switch junction box and thermostat fi eld 

wiring connections.

Vent Damper Wiring
The boiler is equipped with a factory wired harness with 

4 pin Molex plug, that plugs into a 4 pin Molex receptacle 

inside the  vent damper operator. The vent damper must 

be connected for the boiler to operate. Follow the wiring 
diagram follow for the various different models.

!

  

CAUTION

Label all wires prior to disconnection when 

servicing controls. Wiring errors can cause 

improper and dangerous operation. Verify 

proper operation after servicing.

Connect Circulator Pump Wiring
See Fig. 16 -1 for line voltage, thermostat and circulator 

pump fi eld wiring connections. A fi ve (5) foot wiring 

harness with fl exible metal conduit is supplied to connect 

the circulator pump to the service switch junction box. 

If the two 120 Volt circulator wire terminals inside the 

junction box are not used, do not remove the two wire nuts 
to prevent a short circuit. 

!

  

WARNING

Turn off electrical power at fuse box before 

making any line voltage connections. Follow 

local electrical codes

ELECTRICAL WIRING

Содержание PWXL

Страница 1: ...ed Company PWXL Cast Iron Gas Fired Hot Water Boilers INSTALLATION OPERATION MAINTENANCE MANUAL DUNKIRK BOILERS 2210 Dwyer Avenue Utica NY 13504 4729 Phone 315 797 1310 Fax 866 432 7329 e mail info ec...

Страница 2: ...e Operation 11 Vent Damper Operation 12 Gas Supply Piping 14 Electrical Wiring 16 Equipment and Optional Accessories 20 Starting the Boiler 21 Initial Operational Boiler Test Check Out Procedure 23 In...

Страница 3: ...n monoxide which is odorless and invisible CAUTION Indicates a hazardous situation which if not avoided may result in injury NOTICE Indicates information which should be followed to ensure proper inst...

Страница 4: ...by a change in main orifice size For altitudes above 2 000 feet above sea level input ratings should be reduced at the rate of 4 for each 1 000 feet above sea level Consult the latest edition of the N...

Страница 5: ...care must be taken to insure a clean combustion air supply during the construction process Airborne particulates such as from drywall dust and from fiberglass insulation can clog the burner ports flu...

Страница 6: ...crated boiler at selected location remove crate 2 by pulling crate sides from top and bottom boards This boiler must be set on non combustible floor or 3 optional non combustible Base Plate placed ove...

Страница 7: ...not use an air infiltration rate ACH greater than 0 60 Volume 21 ft3 ACH x Total Input Mbh Refer to National Fuel Gas Code for opening C requirements between connected indoor spaces All Outdoor Air Pr...

Страница 8: ...o avoid D reducing safety relief valve relieving capacity below minimum relief valve capacity stated on rating plate Run pipe as short and straight as possible to E location protecting user from scald...

Страница 9: ...or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle Low Design Water Temperature Systems Below 140 If the boiler is to be used in a heating system wher...

Страница 10: ...ly Pipe Sealant On Shaft of Gauge Thread the gauge into the supply water tee as shown in 3 Figure 8 To Prevent damage do not overtighten Figure 8 Thread Gauge Into Supply Water Tee NOTICE IMPORTANT DO...

Страница 11: ...the 10 chimney height HT for single appliance venting see Figure 11 The sections of vent pipe should be fastened with sheet metal screws to make the piping rigid Horizontal portions of the vent syste...

Страница 12: ...damper on pipe curve Do not run wires near high temperature surfaces Use standoff brackets if necessary For safe efficient operation the vent damper and all flue product carrying areas of the applian...

Страница 13: ...l control the burner firing as before while the damper will remain open DO NOT turn damper open manually or motor damage will result Set switch to AUTOMATIC OPERATION to close vent damper during burne...

Страница 14: ...compound pipe dope suitable for liquefied petroleum gas Provide sediment trap upstream of gas valve See Figure 15 GAS SUPPLY PIPING CAUTION WHAT TO DO IF YOU SMELL GAS Do not try to light any applianc...

Страница 15: ...e using gas detector non corrosive detection fluid or other leak detection method acceptable to authority having jurisdiction Do not use matches candles open flames or other methods providing ignition...

Страница 16: ...r on a vertically mounted outlet box It should be sensing aver age room temperature THERMOSTAT LOCATIONS TO AVOID DEAD SPOTS HOT SPOTS COLD SPOTS Behind doors Concealed pipes Concealed pipes or ducts...

Страница 17: ...NOTES VENT DAMPER SHIPPED LOOSE IN CRATE VENT DAMPER HARNESS MUST BE CONNECTED TO VENT WHEN MOUNTED VENT DAMPER HARNESS Figure 16 1 Field Wiring Connections Circulator Pump Wiring Thermostat TW TR Re...

Страница 18: ...2 Wiring Diagram Electronic Ignition NOTICE If any of the original wire as supplied with this appliance must be replaced It must be replaced with type 105 C thermoplastic wire or it s equivalent ELECT...

Страница 19: ...16 3 Wiring Diagram Standing Pilot NOTICE If any of the original wire as supplied with this appliance must be replaced It must be replaced with type 105 C thermoplastic wire or it s equivalent ELECTRI...

Страница 20: ...re changes The diaphragm type tank can be mounted on the air purger fitting or at any convenient place in the supply or return line Air Eliminating Fitting Air Purger An air purger is used to remove e...

Страница 21: ...any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Use only yo...

Страница 22: ...Turn off all electric power to the appliance 3 Remove lower front panel 4 Rotate the gas control knob clockwise 5 to OFF See Figure 18 Wait five 5 minutes to clear out any gas Then smell 6 for gas inc...

Страница 23: ...rating and should go off when controls are tested When controls are reset burners should reignite o Test ignition system safety shutoff device after placing boiler in operation See page 25 o For multi...

Страница 24: ...er maintenance personnel Installation Location Customer Name __________________________________________________________________________ Address ________________________________________________________...

Страница 25: ...e inter mittent pilot control box The gas valve should shut off the main burners TURN OFF ELECTRIC POWER to boiler before reconnecting ignition cable to prevent electric shock Relight The electric and...

Страница 26: ...ntact an authorized contractor or qualified service technician to replace the relief valve and inspect the heating system to determine the cause as this may indicate an equipment malfunction This valv...

Страница 27: ...hermostat call for heat HIGH LIMIT YELLOW Water temperature at high limit ACTIVE GREEN Active power to unit is on There are four adjustable settings on the control These can be adjusted using a small...

Страница 28: ...mit setting For example if the High Temperature Limit is set at 1900 F with the High Temperature Differential at 200 F then the Low Temperature Limit needs to be set at 1700 F or lower If the settings...

Страница 29: ...er current protection Check to be sure electric power supply circuit is ON Controls out of adjustment Reset according to instructions Radiators not heating Open radiator vents to excess air Check flow...

Страница 30: ...NOTES...

Страница 31: ...Date Service Performed Company Name Tech Initials Company Address Phone...

Страница 32: ...DUNKIRK BOILERS 2201 Dwyer Avenue Utica NY 13504 4729 web site www ecrinternational com...

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