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GWC
Series 2
Gas-Fired Water Boilers
User's Information
Manual
If the information in this manual is not followed
exactly, a fire or explosion may result, causing
property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable va-
pors and liquids in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS —
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any telephone
in your building.
• Immediately call your gas supplier from a neighbor's telephone.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation & service must be performed by a qualified installer,
service technician or the gas supplier.
Part number 550-142-804/1021
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Summary of Contents for Williamson-Thermoflo GWC 2 Series
- Page 1 Series 2 Gas-Fired Water Boilers User’s Information Manual If the information in this manual is not followed exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. Do not store or use gasoline or other flammable va- pors and liquids in the vicinity of this or any other appliance.
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Page 2: Hazard Definitions
Series 2 Gas-fired water boiler — User’s Information Manual Please read this page first How to use this To . . . Read/use . . . Page . . . manual . . . Learn Warnings and definitions precautions Laundry room or pool — make sure boiler air is Prevent air piped to boiler per manual. - Page 3 Series 2 Gas-fired water boiler — User’s Information Manual STOP!! — Read before proceeding User — Have this boiler serviced/inspected by Carbon monoxide detector — a qualified service technician, at least annually. • For units, a carbon monoxide detector is Direct Exhaust required in the boiler room.
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Page 4: Prevent Combustion Air Contamination
Series 2 Gas-fired water boiler — User’s Information Manual Prevent combustion air contamination — Air contamination Combustion air contamination: Common household and hobby products often contain Ensure that the combustion air will not contain any of fluorine or chlorine compounds. When these chemicals the contaminants in Figure 1 pass through the boiler, they can form strong acids in the vent system or boiler. - Page 5 Series 2 Gas-fired water boiler — User’s Information Manual Perform maintenance per schedule below Figure 2 Service and maintenance schedules Service technician Owner maintenance (see Boiler Manual for instructions) (see following pages for instructions) • Check boiler area Daily • Check air openings •...
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Page 6: User Maintenance Procedures
Series 2 Gas-fired water boiler — User’s Information Manual User maintenance procedures The boiler should be inspected and started annually, at the beginning of the heat- Boiler must ing season, only by a qualified service technician. In addition, the maintenance be serviced and and care of the boiler designated on page 5 and explained on the following pages must be performed to assure maximum boiler efficiency and reliability. - Page 7 Series 2 Gas-fired water boiler — User’s Information Manual User maintenance procedures (continued) Check boiler interior piping MONTHLY 1. Remove boiler jacket top. Maintenance 2. Visually inspect for leaks around internal piping, circulators, relief valve and other fittings. Immediately call a qualified service technician to repair any leaks. Have leaks fixed at once by a qualified service technician.
- Page 8 Series 2 Gas-fired water boiler — User’s Information Manual User maintenance procedures (continued) Check condensate MONTHLY system 1. NOTICE — To improve clarity, this Maintenance illustration of the condensate trap is shown with no air inlet pipe attached. If your boiler has an air pipe connected here, DO NOT tamper with it.
- Page 9 Series 2 Gas-fired water boiler — User’s Information Manual User maintenance procedures (continued) Oil blower motor Figure 4 Blower motor EVERY 1. Remove the jacket top panel to access the blower 6 MONTHS motor. 2. Use only Anderol 465. DO NOT use household Maintenance universal oils.
- Page 10 Series 2 Gas-fired water boiler — User’s Information Manual How it works . . . 1 Integrated boiler control The integrated boiler control (IBC) responds to signals from the room thermostat, air LEGEND pressure switch, inlet water sensor, boiler water temperature sensor and boiler limit circuit to operate the circulators, gas valve, igniter and blower.
- Page 11 Series 2 Gas-fired water boiler — User’s Information Manual GWC Series 2 Water Boiler Part number 550-142-804/1021...
- Page 12 Series 2 Gas-fired water boiler — User’s Information Manual Operating instructions Before attempting to start the boiler, check the boiler pressure temperature gauge. If boiler and system are full of water and properly pressurized, the gauge should read at least 12 psig on most systems. Operating the boiler without proper water content will damage boiler and controls and could result in severe personal injury, death or substantial property damage.
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Page 13: Common Problems And Solutions
Series 2 Gas-fired water boiler — User’s Information Manual Common problems and solutions Symptom Common Causes Possible Corrections Rapid cycling — boiler turns Thermostat installed where drafts Locate thermostat on inner wall away from or heat affect reading on and off frequently heat sources or cool drafts. - Page 14 Series 2 Gas-fired water boiler — User’s Information Manual Common problems and solutions (continued) Symptom Common Causes Possible Corrections Call qualified service technician to de- Popping or percolating noise Mineral deposits in sections due to constant use of makeup water lime boiler, if necessary.
- Page 15 Series 2 Gas-fired water boiler — User’s Information Manual NOTES Part number 550-142-804/1021...
- Page 16 Series 2 Gas-fired water boiler — User’s Information Manual Part number 550-142-804/1021...