Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Weil-McLain Manuals
  4. Boiler
  5. 380
  6. User manual

Weil-McLain 380 User Manual

Water & steam boilers for gas, light oil, & gas/light oil-fired burners
Hide thumbs Also See for 380:

Advertisement

Quick Links

Download this manual See also: Manual
Boiler Manual
This manual must only be used by a qualified heating installer/service technician. Read all instructions before
installing. Follow all instructions in proper order. Failure to comply could result in severe personal injury, death
or substantial property damage.
INSTALLER
by the consignee.
USER
– 80 –
Water & Steam Boilers
For Gas, Light Oil, & Gas/Light Oil-Fired Burners
Part No. 550-141-935/0215
Part number 550-141-935/1009

Advertisement

loading

Related Manuals for Weil-McLain 380

Summary of Contents for Weil-McLain 380

  • Page 1 – 80 – Water & Steam Boilers For Gas, Light Oil, & Gas/Light Oil-Fired Burners Boiler Manual This manual must only be used by a qualified heating installer/service technician. Read all instructions before installing. Follow all instructions in proper order. Failure to comply could result in severe personal injury, death or substantial property damage.
  • Page 2 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Contents Page Before installing boiler ..............3 Set boiler in place ................5 Assemble block................6 Perform hydrostatic pressure test ..........8 Complete block assembly ..............9 ,QVWDOO ÁXH FROOHFWRU ..............10 Connect water boiler piping ............14 Connect steam boiler piping ............16...

  • Page 3: Before Installing Boiler

    Before installing boiler Floor construction and condition must be suitable for weight of boiler when filled with water. See page 34 for electrical codes. approximate boiler operating weight. 2. Non-level conditions exist. a. Fuel supply b. Electrical power Boiler foundation (see Figure 1) c.
  • Page 4 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Before installing boiler (continued) Combustion and ventilation air openings — Boiler room below grade Do not install an exhaust fan in boiler ventilation air must be provided to assure proper combustion and prevent monoxide emissions, causing severe personal injury or death.
  • Page 5 piped. to remove cables can result in severe The boiler contains ceramic fiber and personal injury, death or substantial property damage. fiberglass materials. Use care when handling these materials per instructions on page 38 of this manual. Failure to gas-tight seal of flue collector hood and cleanout plates. comply could result in severe personal injury.

  • Page 6: Assemble Block

    Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Assemble block Sections are top heavy. Unbolted sections Do not use petroleum-based cleaning may fall if not supported, resulting in or sealing compounds in boiler system. severe personal injury or death.
  • Page 7 Assemble block (continued) Sections are top heavy. Unbolted sections may fall if not Sealing ring installation and port alignment supported, resulting in severe personal injury or death. 1. Remove and discard ” diameter shipping tie rods. 2. Remove grit from port machined surfaces with clean rag. Do not use petroleum-based cleaning or sealing compounds in boiler system.
  • Page 8 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners 2. Plug remaining tappings. Do not pressure test with any control installed. Damage to control can occur due to overpressure. 3. Fill boiler. Vent Steam Water 1½ ti Do not exceed above test pressures by more than 10 psig.
  • Page 9 of four holes located around opening. b. Remove nuts. c. Repeat steps a and b for remaining studs. ” continuous bead of sealing rope adhesive in groove around opening in section. b. Position ½” sealing rope in groove. Overlap ends at least one inch. c.
  • Page 10 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners 1. Figure 10, page 11, shows flue collector components ) on flange. and locations. Figure 11, page 13, shows collector hoods for all models. Follow all instructions in this manual to bolt holes.
  • Page 11 (continued) Flue collector components, typical (Model 880 collector configurations shown) Part No. 550-141-935/0215...
  • Page 12 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners (continued) DO NOT overtighten bolts in flue collector hood assembly. 1. See Figure 10, page 11, for general assembly of flue and carbon monoxide emissions, resulting in severe personal collector components.
  • Page 13 (continued) Flue collector components by model (see Figure 10, page 11 for flue collector components not shown below) Part No. 550-141-935/0215...
  • Page 14 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Recommended minimum pipe sizes for known flow rates. :DWHU ÀRZ UDWH Supply pipe size Return pipe size water flow through boiler that must not be used. Up to 35 2”...
  • Page 15 (continued) Multiple water boiler piping Size secondary boiler pump GPM based on , °F = 230°F – Return water temperature is in Btuh. degree elbows of secondary pipe size. Operate each boiler control panel. maintain boiler at predetermined water temperature. Primary pump GPM and head calculation should not include secondary boiler circuits.
  • Page 16 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners required for steam boilers. Use the Hartford loop for both pumped-return and gravity-return systems. a. Satisfactory operation of any steam heating system depends on adequate return of condensate to maintain steady water level.
  • Page 17 (continued) Model 380 through 580 steam boiler piping — NOTE minimum 24 inches between boiler water line and bottom of header. Model 680 through 980 steam boiler piping — NOTE minimum 24 inches between boiler water line and bottom of header.
  • Page 18 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners (continued) Model 1080 through 1280 steam boiler piping — NOTE minimum 24 inches between boiler water line and bottom of header. Condensate receiver capacity Condensate piping to boiler Boiler...
  • Page 19 (continued) Multiple Steam Boiler Piping Gravity Condensate Return A Pipe as shown for gravity return systems, connecting point A to the wet gravity return. For pump-return systems, if using automatic steam valves, use only slow-opening automatic valves. Use For pumped-return systems, install boiler water level in Figure 30 on page 30.
  • Page 20 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on page 38 of this manual. Failure to manual. comply could result in severe personal injury.
  • Page 21 (continued) Installing jacket support brackets and rails and jacket front and rear panels Part No. 550-141-935/0215...
  • Page 22 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners (continued) snips. Figure 21. side panel, front panel and rails is square. alignment. 3. Install trim collar around damper assembly on top flue boilers. rails. or 24. faces toward the boiler.
  • Page 23 (continued) Jacket side panel placement — Models 380, 480, 580 and 680 Part No. 550-141-935/0215...
  • Page 24 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners (continued) Jacket side panel placement — Models 780, 880 and 980 Part No. 550-141-935/0215...
  • Page 25 (continued) Jacket side panel placement — Models 1080, 1180, and 1280 Part No. 550-141-935/0215...
  • Page 26 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners (continued) Jacket top panel placement Part No. 550-141-935/0215...
  • Page 27 Tankless Heater Ratings 1. Size piping no smaller than heater inlet and outlet. &RQWLQXRXV GUDZ Tankless Inlet and outlet Figure 26. Follow manufacturer’s instructions to install. tappings (no recovery period) heater model 3. Flow regulating valve must be installed. Size according to continuous draw of heater.
  • Page 28 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Water control tappings (see Figure 27) 1. Install furnished controls where shown in Table 10 and Figure 27. Failure to properly install, pipe and wire boiler controls can result in severe damage to boiler, building and personnel;...
  • Page 29 Steam control tappings (see Figure 28) 1. Install controls where shown in Table 11 and Figure 28. Failure to properly install, pipe and wire boiler controls can result in severe damage to boiler, building and personnel; and is not covered by boiler warranty. a.
  • Page 30 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners (continued) Steam control siphon and fittings Water level control locations 3ULPDU\ ZDWHU Casting line Back-up Casting line Back-up ZDWHU OHYHO level control height above height above (only) bottom of...
  • Page 31 through seams and joints, resulting in severe personal injury or death. and construction and lining. be limited to prevent negative draft with 3-foot minimum stub vent height above roof. See Figures 31 and 32. tees and elbows or other obstructions restricting combustion gas flow can result in possibility monoxide emissions, causing severe personal injury provide excess draft which may require a barometric draft con-...
  • Page 32 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Maintain gas-tight seal between burner mounting flange and plate to prevent damage to air tube. If sealing rope is used, apply ” continuous bead of rope adhesive 5. Secure with furnished bolts.
  • Page 33 (continued) Flue damper assembly, typical Do not use petroleum-based cleaning or sealing compounds in boiler system. Severe damage to system components can result, causing substantial property damage. erals can build up in sections, reducing heat transfer, overheating cast iron and causing section failure. For unusually hard water areas or low pH conditions 1.

  • Page 34: Dimensions And Ratings

    6. Net AHRI ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup. Water ratings are based on a piping and pickup allowance of 1.15. Steam ratings are based on the following allowances: 380 thru 1180 — 1.333; 1280 — 1.321.
  • Page 35 Dimensions and ratings (continued) Part No. 550-141-935/0215...
  • Page 36 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Part No. 550-141-935/0215...
  • Page 37 (continued) Part No. 550-141-935/0215...
  • Page 38 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Handling ceramic fiber and fiberglass materials This symbol is used in this addendum to indicate presence of hazards that can cause severe personal injury, death or substantial property damage.
  • Page 39 presence detectable. In some instances, the odorant can fade and the gas may no longer have an odor. ■ Propane gas can accumulate at floor level. Smell near the floor for the gas odorant or any ■ common. ■ ■ ■...
  • Page 40 Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners Part Number 550-141-935/0215...

This manual is also suitable for:

480680780880580980 ... Show all