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An ISO 9001-2008 Certified Company

P/N# 240010954, Rev. A [01/2015]

GM90-50/75/100 Series 4

GAS-FIRED, DIRECT VENT,

CONDENSING,

HOT WATER BOILER

INSTALLATION, OPERATIONS AND MAINTENANCE

MANUAL

Manufactured by:

ECR International, Inc.

2201 Dwyer Avenue, Utica NY 13501

web site: www.ecrinternational.com

Tested For

100 psi

ASME

Working Pressure

C.S.A. Certified

For Natural Gas Or Propane

Models

GM90-50

GM90-75

GM90-100

Содержание GM90-100

Страница 1: ...T VENT CONDENSING HOT WATER BOILER INSTALLATION OPERATIONS AND MAINTENANCE MANUAL Manufactured by ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com Tested For 10...

Страница 2: ...2 DIMENSIONS Figure 1 Boiler Dimensions NOTICE Draft inducer blower may be rotated 90 or 180 to orient vent connection towards right side or rear...

Страница 3: ...nt Pipe 22 Gas Supply Piping 28 Electrical Wiring 30 Controls And Accessories 34 Start Up 36 Operating Instructions 37 Detailed Sequence Of Operation 38 Verification Procedure And Adjustment 42 Differ...

Страница 4: ...nd Cleaning on page 47 NOTICE Used to address practices not related to personal injury CAUTION Indicates a hazardous situation which if not avoided could result in minor or moderate injury WARNING Ind...

Страница 5: ...presents portion of remaining heat that can be applied to heat radiation or terminal units i e finned tube baseboard cast iron radiators radiant floor etc The difference between Heating Capacity and N...

Страница 6: ...exception of 90 75 propane LP product are factory equipped for operation at altitudes ranging from 0 10 000 feet above sea level No changes to factory settings are required for installations from 0 5...

Страница 7: ...model 90 75 Propane units only at altitudes above 5 000 ft install 90 75 High Altitude Orifice Kit 550002629 For all other altitudes use sea level orifice MODEL 90 100 Stock Factory Btu Value of Propa...

Страница 8: ...or commercial applications any additional code requirements must be adhered to for installation This may require additional controls including but not limited to an additional low water cut off a manu...

Страница 9: ...mit flow through piping systems without restrictions for boiler operation 8 Install boiler such that the automatic gas ignition system components are protected from water dripping spraying rain etc du...

Страница 10: ...ny unused openings in the common venting system 2 Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restrictions leakage corrosion and othe...

Страница 11: ...or pH reading outside acceptable range between 7 0 and 8 0 are indications the system should be cleaned or treated Thoroughly flush system with clean water to remove any sediment or contaminants Slud...

Страница 12: ...12 NEAR BOILER PIPING Figure 2 Single Zone Boiler Piping SAFETY RELIEF VALVE SEE PAGE 18 FOR REQUIREMENTS...

Страница 13: ...th very low heat and flow requirements compared to full heating capacity of the boiler This can result in very low flow in the boiler if only one small zone is calling for heat Primary Secondary Pipin...

Страница 14: ...14 Figure 4 Two Zone Boiler Piping With Circulators NEAR BOILER PIPING SAFETY RELIEF VALVE SEE PAGE 18 FOR REQUIREMENTS...

Страница 15: ...15 NEAR BOILER PIPING MAX 4 X DIAMETER CLOSELY SPACED TEES BOILER PUMP Figure 5 Primary Secondary Piping With Circulators And Domestic Hot Water...

Страница 16: ...VE FOR OPTIMUM TANK PERFORMANCE CONSIDER USING ZONE CIRCULATOR BOILER PUMP MAX 4 X DIAMETER CLOSLEY SPACED TEES NEAR BOILER PIPING Figure 6 Piping Primary Secondary Multi Zone System Piping With Zone...

Страница 17: ...17 NEAR BOILER PIPING ZONE VALVE MAX 4 X DIAMETER CLOSELY SPACED TEES Figure 7 Piping Primary Secondary Piping With Zone Valves And Domestic Hot Water With Circulator...

Страница 18: ...e pipe with plain end not threaded Expansion Tank And Make Up Water Determine required system fill pressure system design temperature and system water content Boiler contains 2 6 gallons U S Size expa...

Страница 19: ...19 Figure 9 Diaphragm Type Expansion Tank Piping NEAR BOILER PIPING SAFETY RELIEF VALVE SEE PAGE 18 FOR REQUIREMENTS...

Страница 20: ...20 Figure 10 Conventional Closed Type Expansion Tank Piping NEAR BOILER PIPING SAFETY RELIEF VALVE SEE PAGE 18 FOR REQUIREMENTS...

Страница 21: ...st be manually filled with water Following are the steps required to initially fill condensate trap for start up Steps are only required at initial start up or if maintenance requires draining of cond...

Страница 22: ...vailable for visual inspection Specified primers and glues of certified vent system must be from single manufacturer and not intermixed with other manufacturer s vent system parts Components of the ce...

Страница 23: ...ate at least 3 ft 0 9m above any forced air inlet except boiler s combustion air inlet within 10 ft 3m COMBUSTION AIR AND VENT PIPE Table 5 Combustion Air And Vent Piping Lengths Total Equivalent Leng...

Страница 24: ...is still wet insert pipe into socket with turn twist Be sure pipe is fully inserted into fitting socket COMBUSTION AIR AND VENT PIPE VENT AIR INTAKE 12 305mm 18 12 305mm US 18 458mm Canada Minimum Ab...

Страница 25: ...CLEAR ABOVE HIGHEST SNOW LEVEL OR GRADE 12 SEPARATION BETWEEN BOTTOM OF AIR INTAKE AND BOTTOM OF VENT 12 MINIMUM OVERHANG 3 MAXIMUM SEPARATION 12 MINIMUM 12 MINIMUM 12 MINIMUM 12 MINIMUM 36 MIN 36 MIN...

Страница 26: ...a 18 457mm clearance above highest anticipated snow level or grade 12 305mm Minimum Must be less than 4 102mm or greater than 24 610mm Horizontal distance between end bells of each air intake to preve...

Страница 27: ...equivalent length for all models TRANSITION FITTING 2 50 8mm to 3 76 2mm IN VERTICAL RUN 3 76 2mm Diameter Vent And Combustion Air Intake Piping 92 ft 28m maximum total equivalent length for 90 100 m...

Страница 28: ...ly pressure See Table 7 Page 29 3 Use ground joint unions 4 Provide sediment trap up stream of gas valve 5 Use two pipe wrenches when making the connection to gas valve to keep it from turning 6 Insta...

Страница 29: ...45 000 60 50 000 105 000 195 000 365 000 PROPANE GAS Length of Pipe Ft Pipe Capacity BTU Per Hour Input Includes Fittings Copper Tubing Iron Pipe 5 8 3 4 1 2 3 4 20 131 000 216 000 189 000 393 000 40...

Страница 30: ...em Follow instructions included with your thermostat Locate thermostat about five feet above floor on inside wall Mount directly on wall or on vertical mounted outlet box It should be sensing average...

Страница 31: ...31 Figure 20 Field Wiring Connections ELECTRICAL WIRING SAFETY RELIEF VALVE SEE PAGE 18 FOR REQUIREMENTS...

Страница 32: ...32 ELECTRICAL WIRING Figure 21 Wiring Schematic NOTICE If any of original wire as supplied with this appliance must be replaced it must be replaced with type 105 C Thermoplastic wire or its equivalent...

Страница 33: ...33 Figure 22 Ladder Diagram for Figure 22 ELECTRICAL WIRING...

Страница 34: ...d boiler temperature Refer to limit manufacturer instructions provided with limit control CONTROLS AND ACCESSORIES Figure 23 Indicator Lights A Setting High Limit To adjust turn HI TEMP dial 1 until d...

Страница 35: ...ES 7 Differential Pressure Air Proving Switch Blocked Vent Safety Shutoff Differential pressure switch monitors air flow by sensing differential pressure measured in inches of water w c Pressure switc...

Страница 36: ...en until water runs air free for five seconds to rapidly bleed air from boiler then let the relief valve snap shut 2 Open the zone service valve on the supply pipe for the first zone Open the purge va...

Страница 37: ...e front jacket panel OPERATING INSTRUCTIONS WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life This applianc...

Страница 38: ...FOR 20 SEC IGNITER WARMUP BRIGHT YELLOW ORANGE GLOW OF THE HOT SURFACE IGNITER CAN BE OBSERVED THRU THE OBSERVATION PORT IN FRONT OF BOILER SECTION JUST ABOVE IGNITER IGNITOR LIGHT IS ON GAS VALVE EN...

Страница 39: ...on Thermostat ends call for heat Gas valve and circulator pump are de energized valve and flame lights go out Blower runs for 30 seconds post purge purge light is on Blower is de energized after 30 se...

Страница 40: ...n port on boiler A B C D E 6 After igniter warm up period integrated boiler control energizes gas valve initiating 6 second trial for ignition mode indicated by illumination of Lamp D Lamp C extinguis...

Страница 41: ...ol automatically resets after 1 hour HIGH LIMIT CONTROL If boiler water temperature reaches high limit setpoint high limit n c contacts open immediately closing gas valve Valve and flame lights go out...

Страница 42: ...e Correct input rate is essential for proper and efficient operation of the burner and boiler 1 Determine elevation at installation site 2 Table 1 and Table 2 Page 6 to determine correct input rate fo...

Страница 43: ...turer for information on correct orifice sizing The specific gravity G and the higher heating value HHV of the local natural gas must be obtained from the local gas utility in order to determine the p...

Страница 44: ...ADJUSTMENT UNDER CAP SCREW INLET PRESSURE TAP VR8205 WIRING TERMINALS 2 OUTLET PRESSURE TAP Figure 25 Manifold Pressure Measurement Detail Figure 26 Gas Valve VERIFICATION PROCEDURE AND ADJUSTMENT Re...

Страница 45: ...STATUS DIFFERENTIAL PRESSURE W C PRESSURE SWITCH CONTACTS Not Running 0 Normally Open 1 80 for Model 100 1 80 for Model 75 2 10 for Model 50 Running Without Blockage Greater Than Setpoints Closed Run...

Страница 46: ...hown to inclined manometer or differential pressure gauge with ability to read 0 01 to 5 0 w c Turn on service switch and set thermostat to call for heat If manometer readings do not correspond to cha...

Страница 47: ...and check for piping leaks around relief valve and other fittings Repair if found DO NOT use stop leak compounds J Check igniter for cracks and deterioration Replace if necessary K Check for water in...

Страница 48: ...ent pipe connector to draft inducer outlet MAINTENANCE AND CLEANING Annual Examination And Cleaning Of Boiler Components DANGER Before servicing turn off electrical power to boiler at service switch C...

Страница 49: ...problem an electrical short burning out a transformer for example Initial Service Checks 1 Before troubleshooting A Make sure that circuit breaker is on or fuse is ok at electrical panel B Make sure t...

Страница 50: ...during this condition Important System must be checked by qualified service agency prior to resuming operation 4 ACTIVE Indicates that thermal targeting function is active and control reduces boiler...

Страница 51: ...ensing Low Water Control is Sensing High Temperature Boiler Reached Target Temperature Boiler in Purge Mode and will not fire until temperature drops to 140 F See Purge page 36 Both red and yellow LED...

Страница 52: ...52 Troubleshooting Chart 1 TROUBLESHOOTING...

Страница 53: ...53 Troubleshooting Chart 2 TROUBLESHOOTING...

Страница 54: ...PUDDLE AND BLOCK THE VENT YES CHECK AIR PRESSURE SWITCH PER INSTRUCTIONS ON FOLLOWING PAGES ARE SAMPLING LINES CLEAR AND CONNECTED PROPERLY NO CLEAN OUT SAMPLING LINES OR REPLACE DEFECTIVE SWITCH YES...

Страница 55: ...55 Troubleshooting Chart 4 TROUBLESHOOTING...

Страница 56: ...TENANCE AND CLEANING INSTRUCTIONS CHECK AIR ORIFICE AT BURNER INLET FOR CORRECT SIZE SEE REPAIR PARTS DIAGRAM IS ORIFICE CORRECT SIZE REPLACE BURNER NO CHART 4 YES DOES MAIN BURNER RUN UNTIL CALL FOR...

Страница 57: ...IC INSTRUCTIONS REQUIRES SPECIFIC TOOLS NO YES REPLACE BURNER REPLACE IBC BOILER SHUTS OFF BEFORE END OF CALL FOR HEAT ARE HI LIMIT AQUASTAT CONTACTS CLOSED NO BOILER OFF ON HIGH LIMIT IS ACTUAL BOILE...

Страница 58: ...y Install boiler so gas ignition system components are protected from water dripping spraying rain etc during appliance operation and service circulator replacement etc DIELECTRIC ISOLATION Two 2 1 1...

Страница 59: ...or any other open type system Fill Water and Chemistry Verify water used to fill system meets these requirements System fluid pH maintained between 7 0 and 8 0 Maintain water hardness below 7 grains...

Страница 60: ...d to maintain a pH within recommended level Follow antifreeze manufacturer s instructions to adjust pH If system has leaked water and antifreeze chemistry will need to be adjusted To avoid damage to b...

Страница 61: ...stributor 15363 117 Avenue Edmonton AB T5M 3X4 Canada www hydronicagencies com Tel 780 452 8661 Fax 780 488 2304 Fernox www fernox com Intercool NFP 30 40 50 AA Intercool RPH 15 Interstate Chemical 27...

Страница 62: ...____ Installation instructions have been followed Checkout procedure and adjustments performed Maintenance and Service issues reviewed with owner maintenance person Installation booklet affixed on or...

Страница 63: ...63 NOTES...

Страница 64: ...d with an override which is provided primarily to permit the use of an external energy management system that serves the same function THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE OF THE FOLLOWI...

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