Oil-Fired Water Boilers Boiler Manual • Installation • Maintenance • Startup • Parts This manual must only be used by a qualified heating installer/service technician. BEFORE installing, read all instructions in this manual and all other information shipped with the boiler. Perform steps in the order given. Failure to comply could result in severe personal injury, death or substantial property damage.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Using this manual Homeowner — Read and follow all information on pages 1 through 7 ONLY. Service technician — Read and follow ALL information in the entire manual. Failure to follow all instructions in proper order can cause severe personal injury, death or substantial property damage.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Contents Using this manual . . . . . . . . . . . . . . . . . . . . 2 Install piping: . . . . . . . . . . . . . . . . . . . . . 18 When calling or writing about the boiler . . . . . . . . 2 DIAPHRAGM expansion tank (Figure 9) . . . . . . 18 Packaged and non-packaged boilers . . . . . . . . .
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Please read before proceeding Homeowner — • • For homeowner or person responsible for simple start-up and routine maintenance of the system Instructions on pages 1 through page 7 must be followed to assure proper operation of your boiler. See page 7 for a list of common problems and possible corrections.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Routine maintenance schedule Beginning each heating season Daily during heating season Weekly during heating season End of heating season Boiler shutdown ❏❏ Call a qualified service technician to perform annual service. ❏❏ Check that boiler area is free from combustible materials, gasoline and other flammable vapors and liquids.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Operation WTGO (see Figure 1) 1. If • • • • • burner does not fire, check for: Service switch on boiler or additional switches turned off. Fuses or breaker switch tripped. Thermostat set below room temperature. Fuel valves turned off. Not enough oil in tank to supply burner. Figure 1 2. Correct problems found in step #1.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual HOMEOWNER and SERVICE TECHNICIAN — read and follow completely. Troubleshooting Homeowners — The problems and corrections below represent common situations that can occur. There may be others not listed below. It is important always to contact a qualified service technician if you have any questions about the operation of your boiler or system.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Before installing boiler Homeowner — STOP! The procedures and information on this and following pages are intended only for a qualified service technician who has the necessary equipment to inspect and adjust boiler and burner. A homeowner should never attempt these procedures. The service technician must also read pages 1 through 7 before proceeding.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Before installing boiler (continued) Provide air for combustion and ventilation Do not install exhaust fan in boiler room. Adequate combustion and ventilation air: • Assures proper combustion. • Reduces risk of severe personal injury or death from possible flue gas leakage and carbon monoxide emissions.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Install boiler — packaged boilers only Place boiler Perform hydrostatic pressure test 1. Remove circulator strapped to pallet. 1. 2. 3. 4. 5. Circulator will be damaged if not removed before boiler is lifted from pallet. 2. Remove boiler from pallet. Do not drop boiler or bump jacket on floor or pallet. Damage to boiler can result. Smaller sized boilers may be top heavy.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Install boiler — packaged boilers only Figure 3 (continued) Change from back flue outlet to top flue outlet (optional) Instructions for packaged boilers are continued on page 15.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Install boiler — non-packaged boilers only Fiberglass wool and ceramic fiber materials are possible cancer hazards. See warning on page 33. Place boiler 1. Non-Packaged WTGO-3 through 6 — position on site. Smaller sized boilers may be top heavy. Use caution when handling to avoid minor personal injury or property damage. a. Boiler is shipped for back flue outlet.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Install boiler — non-packaged boilers only Perform hydrostatic pressure test 1. Refer to Control Tapping Table 2 and Figure 5 to install: a. Boiler drain. b. Water pressure gauge (test only). Be sure gauge can handle test pressure. c. Air vent in upper “N” tapping. d. Plugs in remaining tappings. 2. Fill boiler. Vent all air. Pressure test boiler at 1½ times working pressure.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Install burner — all boilers Install burner For P-WTGO and A-WTGO boiler (also refer to instructions packed with burner) Use only burners specified for use on Weil-McLain GOLD oil boilers. DO NOT use burners specified for use on Weil-McLain Model 68 boilers. Contact individual burner manufacturers for proper burner selections. Figure 6 1.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect breeching General chimney requirements • Designed for natural draft firing. Connect boiler to vertical chimney. Insufficient draft can cause flue gas leakage and carbon monoxide emissions, which will lead to severe personal injury or death. • • Use vent material approved by local codes for oil-fired burners.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect water piping General piping information • All packaged WTGO boilers are shipped with an installed combination temperature limit control/low water cut-off. • If installation is to comply with ASME or Canadian requirements, an additional high temperature limit is needed. Install control in supply piping between boiler and isolation valve.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect water piping (continued) Piping MULTIPLE ZONES Follow instructions on page 18 and page 19 to install piping near boiler. See Figure 11 or Figure 12 to complete installation. Zoning with circulators: Figure 11 Multiple zoning with CIRCULATORS Zone 2 Zone 1 1. Size each circulator to individual circuit requirements. 2.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect water piping Piping for systems requiring temperatures below 140°F (continued) Figure 13 Piping with CIRCULATORS In most systems, this type of piping is not required. If system water temperature requirements are less than 140°F, such as radiant panels or converted gravity systems, use piping as shown in Figure 13 or Figure 14.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect water piping (continued) Use with refrigeration systems • • Install boiler so that chilled medium is piped in parallel with heating boiler. Use appropriate valves to prevent chilled medium from entering boiler. Consult I=B=R Installation and Piping Guides.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect tankless heater piping To pipe tankless heater: Hot Water Can Scald! • Consumer Product Safety Commission and some states recommend domestic hot water temperature of 130°F or less. • When installing an automatic mixing valve, selection and installation must comply with valve manufacturer’s recommendations and instructions.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect wiring General wiring requirements Electric shock hazard. Can cause severe personal injury or death if power source, including service switch on boiler, is not disconnected before installing or servicing. • • • Installations must follow these codes: • National Electrical Code, ANSI/NFPA 70, latest edition and any additional national, state or local codes.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect wiring — blocked vent shutoff switch option Blocked vent shutoff switch After installing BVSS switch, proceed as follows 2. Install Spill Switch (BVSS) Wiring Harness (P/N 591-391-942) as follows: a. Remove cover from BVSS Box. b. Install straight fitting end of the harness on the BVSS Box. Install elbow (90º) end fitting on the Boiler Junction Box (see Figure 19). c.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Connect oil piping General oil piping requirements • • • • Location and installation of oil tanks, oil piping and burners must follow: • NFPA 31, Standard for the Installation of Oil-Burning Equipment. • In Canada, CSA B139, Installation of Oil-Burning Equipment. • Local codes and regulations. • Information provided with burner and fuel pump.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Start-up Fill the system To place in operation 1. Close manual and automatic air vents and boiler drain cock. 2. Fill to correct system pressure. Correct pressure will vary with each installation. Normal cold water fill pressure for residential systems is 12 psig. Boiler water pH 7.0 to 8.5 is recommended. 1. Verify boiler is filled with water. 2.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Check-out procedure Check off steps as completed operation as outlined by manufacturer. Burner should be operating and should go off when controls are tested. When controls are restored, burner should re-ignite. ❏❏ Boiler and heat distribution units filled with water? ❏❏ Limit control set to system temperature requirements (max.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Annual service check list Annual Service Call Checklist (follow in order listed below) 1 Check that boiler area is free from combustible materials, gasoline and other flammable vapors and liquids. 2 Check for and remove any obstruction to combustion and ventilation air flow to boiler. 3 Check breeching and chimney or vent for obstructions, damage, etc.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Detailed service procedures Figure 22 Thoroughly clean flueways between all pins at all angles. Start on top of boiler, finish from the bottom. tion chamber floor, and the refractories at the rear of boiler and in the burner mounting door. Replace any parts as necessary. 9. Close burner mounting door and tighten nut securely. Place flue collector hood on top of boiler.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Handling ceramic fiber and fiberglass materials REMOVAL OF COMBUSTION CHAMBER LINING OR BASE PANELS The combustion chamber lining or base insulation panels in this product contain ceramic fiber materials. Ceramic fibers can be converted to cristobalite in very high temperature applications.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Close clearance installation To provide close clearances as described on page 34 and page 35: Obtain the Close Clearance Kit, Weil-McLain Part No. 386‑500‑050. Install the kit as described below. Failure to use kit or install as described can result in a fire hazard, causing severe personal injury, death or substantial property damage.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Close clearance installation Figure 25 Flue pipe clearances (continued) Figure 26 Back vent clearances Combustible surface 24" For servicing or min.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Replacement parts Table 7 Series 3 section and flue collector parts Repair parts must be purchased through Weil-McLain for the specific boiler as indicated in the list below. Results from using modified or other manufactured parts will not be covered by warranty and may damage boiler or impair operation. Item 36 Description Part No. Item Description Part No.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Replacement parts Table 9 (continued) Series 3 trim parts Fig. No. Part no. 1 380-000-000 Combination pressure-temperature gauge kit, 60° – 360° F., 0 - 75 psi, 31/8" dia.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Dimensions Figure 31 WTGO dimensions — inches (mm) 7 3/16 [182.6] 7¾ [196.9] 2 5/8 [66.7] 7 Dia [177.8] 20 ¼ [514.4] 5 1/16 [128.6] 2 9/16 [65.1] Supply 7 Dia [177.8] Air vent or expansion tank 35 5/8 [904.9] 4 ⅜ Dia [111.1] Burner opening B Return 15 ½ [393.7] 9 ½ [241.3] 14 Approx. L 2 7/16 [61.9] 2 7/16 [61.9] Left side 1 ⅛ [28.6] Front 7 Dia. [177.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely. Ratings Table 11 GOLD WTGO oil water boiler ratings ® Boiler Model Number (9) (10) *WTGO-3LR I=B=R Burner Capacity GPH (3) 0.70 DOE Heating Capacity MBH Net I=B=R Ratings (4) (2) MBH (2) 86 75 (5) DOE Seasonal Efficiency % Afue Minimum I=B=R Chimney Rect In *WTGO-3L 0.95 114 99 85.3 *WTGO-3R 0.80 98 85 86.2 0.010 *WTGO-3 0.95 115 100 85.
GOLD WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual SERVICE TECHNICIAN ONLY — read and follow completely.
GOLD 44 WTGO OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual Part number 550-141-825/1211
