Weil-McLain EG Manual
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Weil-McLain EG Manual

Gas-fired boilers — series 4 eg, peg, egh
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See also: User's Information Manual , Manual
, , , , ,
EG
EG
EG
EG
EG
Gas-fired Boilers — Series 4
Boiler Manual
Boiler Manual
Boiler Manual
Boiler Manual
Boiler Manual
• Installation
• Operation
EG
Read all instructions before installing
Leave all instructions with boiler for future reference.
Installer
Any claims for damage or shortage in shipment must be filed
immediately against the transportation company by the consignee.
Owner
Installation and service should be performed by qualified service
technician.
, , , , ,
PEG
PEG
PEG
PEG
PEG
• Service
• Boiler Parts
For additional information,
refer to . . .
Control Supplement
and Gas Control Parts
for Natural or Propane gas
with optional tankless heater
application
EGH
EGH
EGH
EGH
EGH
EGH
Part No. 550-110-639/0703

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Summary of Contents for Weil-McLain EG

  • Page 1 , , , , , Gas-fired Boilers — Series 4 Boiler Manual Boiler Manual Boiler Manual Boiler Manual Boiler Manual • Installation • Operation Read all instructions before installing Leave all instructions with boiler for future reference. Installer Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.

  • Page 2: Table Of Contents

    Installation and service certificate Important EG and EGH boilers for tankless or storage heater application are available only on special order as factory-installed optional equipment. Tankless heater cannot be added to standard block assembly. Block assembly must be ordered with heater openings. Standard boilers cannot be adapted for heater use.

  • Page 3: Installation

    EG, PEG, EGH G Installation Codes Installations must comply with all local codes, laws, regulations and ordinances. Also National Fuel Gas Code ANSI Z223.1-latest edition. When required, installations must conform to Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.

  • Page 4: Chimney Or Vent Requirements

    Condensation can damage a masonry chimney. Weil-McLain recommends the following to prevent possible damage: 1. Line chimney with corrosion-resistant metal liner such as AL29-4C® single wall stainless steel or B-vent.

  • Page 5: Residential Garage Installation

    EG, PEG, EGH G Installation (continued) Installation clearances Suggested minimum clearances for servicing • 24 inches for cleaning and servicing, left side. • 18 inches for access to controls and components, front. • 46 inches from top for cleaning flueways.

  • Page 6: Hydrostatic Pressure Test

    EG, PEG, EGH G Installation (continued) Figure 3 Hydrostatic pressure test Pressure test before attaching gas piping or electrical supply. 1. Plug any necessary boiler tappings or openings. 2. Do not use gauge supplied with boiler for pressure testing. Install gauge with appropriate range.
  • Page 7 4. Install front access panel and back base channel. See Figure 9. 5. Install rollout thermal fuse element with wire terminals facing up on front access panel of EG 30-75 boilers only as shown in Figure 9. Wire per Control Supplement.
  • Page 8 OILERS SERIES Spill switch installation (Factory installed on PEG On EG 30-75 boilers only, fasten spill switch to draft hood as shown on page 22, Drawing Ref. Letter “K”. Connect wires as shown in Control Supplement. Damper installation If damper will be installed, see Control Supplement for information.

  • Page 9: Piping Connections

    4. Connect system return piping to left end for EG - right or left for EGH. Supply and return must be on same end of EGH boiler, for proper flow and disposition of water throughout the sections.

  • Page 10: Use With Refrigeration Systems

    EG, PEG, EGH G Piping connections 8. Multiple Zoning a) Zone valves: Refer to zone valve manufacturer’s literature for wiring and application. A separate transformer is required to power zone valves. Provide balancing valves to adjust the flow so it is about the same in each zone.

  • Page 11: Steam Boilers

    EG, PEG, EGH G Piping connections Steam boilers 1. Refer to table and Figures 14 or 15. Pipe exactly as shown. Satisfactory operation of a steam heating system depends on adequate condensate return to boiler to maintain a steady water level. Avoid adding raw make-up water.

  • Page 12: Install Boiler Controls

    EG, PEG, EGH G Install boiler controls Failure to properly install, pipe and wire boiler controls may result in severe damage to the boiler, building and personnel. Water boiler 1. Install controls as shown on Control Tapping Table and Figure 3, page 6. Limit control and supply piping must be on the same end of EGH boiler.

  • Page 13: Optional Heaters

    • boiler water pressure is limited to max. 30 psig by approved water or steam relief valve. 4. EGH-85 & 95 Standing pilot systems - no tankless option 5. EG-75 Standing pilot systems - no tankless option 6. EGH-85 Water - use one heater only. 4 — B...

  • Page 14: Gas Piping

    EG, PEG, EGH G Gas piping Connecting gas supply piping Size gas piping considering a. Diameter and length of gas supplying piping. b. Number of fittings. c. Maximum gas consumption (including any possible future expansion). d. Allowable loss in gas pressure from gas meter outlet to boiler.

  • Page 15: Wiring

    EG, PEG, EGH G Wiring Refer to control supplement for For your safety, turn off electrical power supply before making any electrical connections to avoid possible electrical shock hazard. All wiring must be installed in accordance with requirements of National Electrical Code and any additional national, state or local code requirements having jurisdiction.

  • Page 16: Final Adjustments

    EG, PEG, EGH G Final adjustments Water treatment Do not use petroleum-based cleaning or sealing compounds in boiler system. Severe boiler damage will occur. Continual fresh make-up water will reduce boiler life. Minerals can build up in sections, reducing heat transfer, overheating cast iron, and causing section failure.

  • Page 17: To Place In Operation

    EG, PEG, EGH G Final adjustments Skimming steam boilers Clean all newly installed steam boilers to remove oil and grease. Failure to properly clean can result in violent fluctuations of water level, water passing into steam mains, or high maintenance costs on strainers, traps and vents.

  • Page 18: Check Out Procedure

    Burners should be operating and should go off when controls are tested. When controls are restored, burners should reignite. EG only - button on spill switch pushed in? To test ignition system shut-off device: For boilers with electronic ignition systems: Connect manometer to outlet side of gas valve.

  • Page 19: Service

    EG, PEG, EGH G Service Handling fiberglass and ceramic fiber 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. The International Agency for Research on Cancer (IARC) has concluded, "Crystalline silica inhaled in the form of quartz or cristobalite from occupational...
  • Page 20 EG, PEG, EGH G Service (continued) Also Refer to Additional Instructions Shipped With The Boiler For Specific Control Operation and Troubleshooting. Verify Proper Operation After Servicing Your boiler should be inspected, cleaned and, if necessary, adjusted once a year. A qualified service agency should be called.
  • Page 21 EG, PEG, EGH G Service (continued) Check pilot burner flames 1. Proper pilot flame a) Blue flame. b) Inner cone engulfing pilot flame sensor. c) Pilot flame sensor glows cherry red. Figure 24 Typical pilot burner flame 2. Improper pilot flame.

  • Page 22: Replacement Parts

    EG, PEG, EGH G Replacement parts – EG The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on of this manual. Failure to comply could result in severe personal injury. — FIRED OILERS SERIES 4 —...
  • Page 23 EG, PEG, EGH G Replacement parts – EG Part Number 550-110-639/0703 — FIRED OILERS SERIES (continued) NOTE 1: Order sufficient quantities to replace all orifices within a base 4 — B OILER ANUAL...
  • Page 24 EG, PEG, EGH G Replacement parts – EGH The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on of this manual. Failure to comply could result in severe personal injury. — FIRED OILERS SERIES 4 —...
  • Page 25 EG, PEG, EGH G Replacement parts – EGH Part Number 550-110-639/0703 — FIRED OILERS SERIES (continued) NOTE 1: Order sufficient quantities to replace all orifices within a base 4 — B OILER ANUAL...

  • Page 26: Data

    EG, PEG, EGH G — 4 — B FIRED OILERS SERIES OILER ANUAL Data Dimensions EG Dimensions P-EG Dimensions EGH Part Number 550-110-639/0703...

  • Page 27: Ratings

    Water ratings are based on a piping and pick-up allowance of 1.15; steam ratings on an allowance of 1.333. An additional allowance should be made for unusual piping and pick-up loads. Consult local Weil-McLain representative. 4 — B OILER ANUAL CSA Gross output.
  • Page 28 FIRED OILERS SERIES EG additional equipment Tankless Water Heater – EG-35-65 PI and SP EG-75 PI only With tankless heater: Combination High Limit, Low Limit, Circulator Control, and Relay with 40 VA Transformer Tankless Steam Heater - EG35-75 With Tankless Heater:...

This manual is also suitable for:

Eg-35Eg-40Eg-45Eg-50Eg-55Eg-65 ... Show all

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