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Summary of Contents for Green Mountain GMGS
- Page 1 GMGS Cast Iron Steam Gas Fired Boilers INSTALLATION, OPERATION & MAINTENANCE MANUAL Models GMGS075 GMGS225 GMGS112 GMGS262 GMGS150 GMGS299 GMGS187 Manufactured by: ECR International, Inc. 2201 Dwyer Avenue, Utica NY 13504-4729 web site: www.ecrinternational.com P/N# 240009192, Rev. C [10/2012]...
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Page 2: Table Of Contents
Operating Instructions ....................24 Checking and Adjusting ....................26 Cleaning Your Boiler ...................... 28 Maintaining Your Boiler ....................29 Service Hints ....................... 31 Repair Parts ......................... 32 KEEP THIS MANUAL NEAR BOILER RETAIN FOR FUTURE REFERENCE GMGS GAS FIRED BOILERS STEAM BOILERS... -
Page 3: Safety Symbols
SAFETY SYMBOLS Following defi ned symbols are used throughout this READ AND UNDERSTAND ALL INSTRUCTIONS BEFORE manual to notify reader of potential hazards of varying risk INSTALLING. levels. Boiler installation shall be completed by qualifi ed agency. DANGER WARNING Indicates a hazardous situation which, if not avoided, Fire, explosion, asphyxiation and electrical shock WILL result in death or serious injury hazard. -
Page 4: Boiler Ratings And Capacities
BOILER RATINGS AND CAPACITIES Figure 1 - Dimensions Table 1 - Ratings and Capacities †Natural Gas †Propane Gas Dimensions (Inches) No. of BOILER MODEL NUMBER Heating Heating I=B=R Sections Input I=B-R I=B=R Input I=B=R Flue "A" Capacity Capacity Rating *MBH Rating Rating Sq. -
Page 5: Before You Start
BEFORE YOU START • Verify you have right size boiler before starting • Boilers are designed for use in closed heating systems installation. See rating and capacity table on previous where all steam is returned to boiler as condensate and page. -
Page 6: Fresh Air For Combustion
FRESH AIR FOR COMBUSTION B. Known Air Infi ltration Rate. See Table 1 for WARNING space with boiler only. Use equation for multiple Fire, and asphyxiation hazard. Carbon monoxide appliances. Do not use an air infi ltration rate is odorless, tasteless, clear colorless gas, which is (ACH) greater than 0.60. -
Page 7: Installation - System Piping
INSTALLATION - SYSTEM PIPING • allow complete drainage of the valve and the WARNING discharge line; Burn and scald hazard. Safety relief valve could • be independently supported and securely anchored discharge steam or hot water during operation. to avoid applied stress on the relief valve; Install discharge piping per these instructions. - Page 8 INSTALLATION - SYSTEM PIPING For pumped return systems, follow condensate pump or WARNING boiler feed pump manufacturer’s instructions for proper Burn and scald hazard. Safety relief valve could installation and hookup. discharge steam or hot water during operation. When connecting cold water supply to water inlet valve, Install discharge piping per these instructions.
- Page 9 INSTALLATION - SYSTEM PIPING Figure 3 - Recommended Near Boiler Piping Using One Supply Tapping...
- Page 10 INSTALLATION - SYSTEM PIPING Figure 4A - Recommended Near Boiler Piping Using One Supply Tapping...
- Page 11 INSTALLATION - SYSTEM PIPING Figure 4B - Common Near Boiler Piping Mistakes Figure 5 - Chilled Water Piping VALVES A & B OPEN FOR HEATING; CLOSE FOR COOLING VALVES C & D CLOSE FOR HEATING; OPEN FOR COOLING...
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Page 12: Chimney And Vent Pipe Connection
CHIMNEY AND VENT PIPE CONNECTION For boilers for connection to gas vents or chimneys, Do not connect to fi replace fl ue. vent installations shall be in accordance with "Venting of End of vent pipe must be fl ush with inside face of Equipment", of the National Fuel Gas Code, ANSI Z223.1/ chimney fl... -
Page 13: Vent Damper Operation
CHIMNEY AND VENT PIPE CONNECTION Test for spillage at the draft hood relief opening after Figure 6 - Typical Masonry Chimney Requirements 5 minutes of main burner operation. Use the fl ame of a match or candle, or smoke from a cigarette, cigar or pipe. -
Page 14: Gas Supply Piping
VENT DAMPER OPERATION Check annually, vent damper and all fl ue product MANUAL OPERATION OF VENT DAMPER carrying areas of appliance with particular attention Place vent damper in open position to permit burner given to deterioration from corrosion or other operation by using “HOLD DAMPER OPEN”... - Page 15 GAS SUPPLY PIPING Propane Installation Figure 10 - Gas Piping At Boiler • Connections by licensed propane dealer only. • Use two stage regulator provided by propane supplier. • Propane supplier should check piping. Leak Check Gas Piping Pressure test boiler and gas connection before placing boiler in operation.
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Page 16: Electrical Wiring
ELECTRICAL WIRING • Set heat anticipator at 0.4 amps for boilers equipped WARNING with standing pilot. Turn off electrical power at fuse box before making • Connect 24 volt thermostat leads to two wires tagged any line voltage connections. Follow local electrical “24 volt thermostat”... - Page 17 ELECTRICAL WIRING Figure 11A - Isolation Relay Wiring For Steam Figure 11B - Isolation Relay Wiring For Steam Boilers With Float Type Low Water Cut Off And Using Boilers With Probe Type Low Water Cut Off And An Electronic Thermostat Using An Electronic Thermostat...
- Page 18 ELECTRICAL WIRING Figure 12 - Wiring Diagrams For Boilers With Probe Type Low Water Cut-Off INTERMITTENT IGNITION Shown PS802 Terminals PS802 to CG400 Cross Reference PS802 CG400 Replace damaged wiring with type 105°C Thermoplastic wire or equivalent.
- Page 19 ELECTRICAL WIRING Figure 13 - Wiring Diagrams For Boilers With PS-802 Probe Type Low Water Cut-Off STANDING PILOT Shown PS802 Terminals PS802 to CG400 Cross Reference PS802 CG400 Replace damaged wiring with type 105°C Thermoplastic wire or equivalent.
- Page 20 ELECTRICAL WIRING Figure 14 - Wiring Diagrams For Boilers With 67D-1 Float Type Low Water Cut-Off INTERMITTENT IGNITION Replace damaged wiring with type 105°C Thermoplastic wire or equivalent.
- Page 21 ELECTRICAL WIRING Figure 15 - Wiring Diagrams For Boilers With 67D-1 Float Type Low Water Cut-Off STANDING PILOT Replace damaged wiring with type 105°C Thermoplastic wire or equivalent.
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Page 22: Controls And Accessories
CONTROLS AND ACCESSORIES SAFETY RELIEF VALVE WATER FEEDER (Optional) Safety releif valve opens automatically if boiler steam • Model WF-2U-24 water feeder maybe used with either pressure exceeds pressure rating of valve (15 psig). available low water cutoffs. Water feeder maintains Should it fail to open under this condition, shut down your safe minimum water level. -
Page 23: Operating Instructions
OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions exact- ly, a fi re or explosion may result causing prop- erty damage, personal injury or loss of life. • This appliance is equipped with an ignition device which automatically lights burner. -
Page 24: Intermittent Ignition Boiler - Vr8204A/Vr8304M Gas Valve Operating Instructions
CONTINUOUS PILOT BOILER - VR8200A/VR8300A GAS VALVE OPERATING INSTRUCTIONS Operating Instructions For Continuous Pilot System Figure 16 - Lighting Pilot VR8200A/VR8300A Gas Valve STOP! Read the safety information on page 22. Set the thermostat to lowest setting. Turn off all electric power to the appliance. Remove lower front panel. -
Page 25: Continuous Pilot Boiler - Vr8200A/Vr8300A Gas Valve Operating Instructions
OPERATING YOUR BURNER How A Steam System Operates Thermostat Boiler water is heated until it reaches boiling point. As Set at desired room temperature. If windows are to be water boils it turns into steam. Steam rises from top of opened or heat is not needed, move thermostat pointer to water through supply main to radiation units. -
Page 26: Checking And Adjusting
CHECKING AND ADJUSTING Adjust Pilot Burner Adjust Steam Pressure Control Pilot fl ame should surround 3/8” to 1/2” of pilot sensor. • Steam pressure limit control (pressuretrol) shuts off gas Refer to Figure 20. If fl ame needs adjusting: to main burners when steam pressure in boiler reaches cut-off setpoint (i.e. - Page 27 CHECKING AND ADJUSTING Checking Controls Figure 20 - Igniter To check Low Water Cut-Off, turn off power to boiler or turn thermostat down to lowest setting. Drain water to below visible bottom of water gauge glass. Turn power on and turn thermostat to call for heat.
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Page 28: Cleaning Your Boiler
CLEANING YOUR BOILER Final blow down, allow boiler to thoroughly cool, and NOTICE add fresh water slowly up to normal water line. Start Boiler cleaners and chemical cleaning additives burners and maintain at least 180 degrees for 15 are not recommended. If used and not rinsed minutes to remove dissolved gasses from fresh water. -
Page 29: Maintaining Your Boiler
MAINTAINING YOUR BOILER • Keep boiler area clear and free from combustible Consult low water cut-off manufacturer’s instructions materials, gasoline and other fl ammable vapors and included with boiler. liquids. NOTE: Opening blow-off valve also checks cut-off operation. • Keep boiler are clear and free of obstructions to fl ow of combustion and ventilation air. - Page 30 MAINTAINING YOUR BOILER CLEANING YOUR BOILER FLUE PASSAGES AND WARNING BURNERS Burn and scald hazard. Never refi ll hot boiler with • Flue Passages between sections should be examined cold water. Danger of thermal shock may crack yearly and cleaned, if necessary. section.
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Page 31: Service Hints
SERVICE HINTS You may avoid inconvenience and service calls by checking these points before you call for service. CAUTION WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. -
Page 32: Repair Parts
REPAIR PARTS... - Page 33 REPAIR PARTS...
- Page 34 REPAIR PARTS...
- Page 35 REPAIR PARTS...
- Page 36 Manufactured by: ECR International, Inc. 2201 Dwyer Avenue, Utica NY 13504-4729 web site: www.ecrinternational.com...
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