3 - SAFETY INFORMATION 3.1 - General WARNING Boiler installation shall be completed by qualified agency. Construction materials of appliance and products of combustion and fuel contain alumina, silica, WARNING heavy metals, carbon monoxide, nitrogen Fire, explosion, asphyxiation and electrical shock oxides, aldehydes and /or other toxic or harmful hazard�...
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3 - SAFETY INFORMATION Water 1st Degree Burn 2nd and 3rd Degree Burn FOR YOUR SAFETY READ BEFORE OPERATING Temperature Exposure Time For Exposure Time For An DANGER Setting An Adult Adult 120° F 1 minute 5 minutes 130° F 5 seconds 30 seconds 140°...
4 - BEFORE YOU START 4.2 Prior To Installing The Boiler 4.1 Installation and Operation Do not operate unit if any control, switch, components • Verify you have selected right size boiler with proper or devices have been underwater or subject to water capacity�...
5 - LOCATING THE BOILER WARNING Fire hazard� Do not install on carpeting, or vinyl flooring. Failure to follow these instructions could result in death or serious injury� NOTICE Clearance for access should exceed fire protection clearance� Boiler shall not be installed on carpeting or vinyl flooring.
6 - VENTILATION & COMBUSTION AIR WARNING Asphyxiation, fire hazard. Do not obstruct air openings to combustion area� Follow instructions below, to maintain adequate combustion air� Table 2 - COMBUSTION AIR REQUIREMENTS (MINIMUM OPENING IN SQUARE INCHES) *UNCONFINED AREA **CONFINED AREA OUTSIDE INSIDE OUTSIDE...
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6 - VENTILATION & COMBUSTION AIR B� When communicating with the outdoors by means When air for combustion and room ventilation is from of vertical ducts, each opening shall have a inside buildings, confined space shall be provided with minimum free area 1 square inch per 4,000 Btu per two permanent openings, one starting 12 inches from hour of total input rating of all appliances in the the top and one 12 inches from the bottom of the...
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6 - VENTILATION & COMBUSTION AIR Figure #3 Figure #4 Figure #5 PN 240012628, Rev. A [09/30/2019]...
7 - CONNECTING SUPPLY AND RETURN PIPING Connect supply and return piping� See Figure #6� When Hot water boilers installed above radiation level must boiler is used in connection with refrigerated systems: be provided with low water device either as part of boiler or at time of boiler installation�...
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7 - CONNECTING SUPPLY AND RETURN PIPING A� This method is used to protect boilers from Note: When using bypass piping, adjust valves A and B condensate forming due to low temperature return until desired system temperature is obtained� water� Generally noticed in large converted gravity systems or other large water volume systems�...
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7 - CONNECTING SUPPLY AND RETURN PIPING Figure #8 - Mixing Valve Piping Figure #9 - Primary Secondary Piping With Bypass PN 240012628, Rev. A [09/30/2019]...
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7 - CONNECTING SUPPLY AND RETURN PIPING Figure #10 - Indirect Water Heater Piping with Circulator DRAIN VALVE Figure #11 - Indirect Water Heater Piping with Zone Valve DRAIN VALVE PN 240012628, Rev. A [09/30/2019]...
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7 - CONNECTING SUPPLY AND RETURN PIPING Figure #12 - Recommended Piping For Boilers Equipped With T3 Or T4 Tankless Heater DANGER Water temperatures exceeding 125°F will cause severe burns instantly or death by scalding� Typical indirect water heater installation using circulators is shown in Figure #10�...
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7 - CONNECTING SUPPLY AND RETURN PIPING OPTIONS UTILIZING 3/4” TAPPING Figure #13 - Optional Location For Air Vent Figure #14 - Optional Location For Expansion Tank (Non-Diaphragm Type) PN 240012628, Rev. A [09/30/2019]...
8 - SYSTEM PIPING Figure #15 - Discharge Piping From Safety WARNING Relief Valve Burn and scald hazard� Safety relief valve could discharge steam or hot water during operation� Install discharge piping per these instructions� Install safety relief valve using pipe fittings provided with boiler�...
9 - VENTING SYSTEM INSPECTION & INSTALLATION INSPECT CHIMNEY - verify chimney construction Figure #16 conforms with requirements of authority having jurisdiction or in absence of such requirements ANSI Z211�1, NFPA 211� • Boiler must be installed into chimney which has masonry or metallic chimney liner�...
10 - OIL TANK AND PIPING Installation of oil tank and piping shall conform to • Do not run overhead fuel lines from tank to oil burner� requirements of authority having jurisdiction or in • Follow instructions, attached to fuel pump, for fuel absence of such requirements National Board of Fire pump and by-pass connections�...
11 - FIELD ASSEMBLY Install oil burner� Follow burner manufacturer specific instructions for installation. • Check oil nozzle in burner for size, angle and type, inspect electrode settings, check head setting, check air band and air shutter settings� See “Oil Burner, Nozzle, &...
12 - ELECTRICAL WIRING WARNING Figure #19 - Hydrostat 3250 Hi-Limit/Low Water Cutoff Control Electrical shock hazard� Turn OFF electrical power supply INDICATOR at service panel before making electrical connections� LIGHTS Failure to do so could result in death or serious injury� DIGITAL DISPLAY THERMAL/ LWCO...
13 - ELECTRICAL WIRING Figure #20 - Wiring Diagram Beckett AFG and Riello 40F10 with or without Tankless Heater Note: Limit control program based on use with or without tankless heater� Refer to Hydrostat 3250 provided with boiler for additional information� PN 240012628, Rev.
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13 - ELECTRICAL WIRING Figure #21 - Wiring Diagram Carlin EZ-1/2 and Riello 40F5 with or without Tankless Heater 70200 Note: Limit control program based on use with or without tankless heater� Refer to Hydrostat 3250 provided with boiler for additional information� PN 240012628, Rev.
14 - OPERATING INSTRUCTIONS 14.1 Operating Instructions 14.4 Instructions For Proper Operation Of Boiler Burner Unit Inspect venting system at start of each heating season� Check vent pipe from boiler to chimney for signs A ¼” diameter slot is provided in inspection cover plate of deterioration by rust or sagging joints�...
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14 - OPERATING INSTRUCTIONS B. Ignition failure - with burner off, close oil supply 14.9 Start of Heating System valve and run through start-up procedure, The safety • Using flue brush, brush soot and scale into combustion switch should lock out as in flame failure. space where it can be removed through swing door C.