ECR Olsen OMGB Series Installation, Operation & Maintenance Manual
Cast iron gas fired boilers for forced hot water
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MODEL NUMBERS:
OMGB50
OMGB75
OMGB125 OMGB150 OMGB175
OMGB200 OMGB250 OMGB300
An ISO 9001-2008 Certified Company
OMGB100
ECR International
2201 Dwyer Avenue •
Utica • New York • 13501 • USA
www.ecrinternational.com
OMGB SERIES
Cast Iron Gas Fired Boilers
For Forced Hot Water
INSTALLATION, OPERATION &
MAINTENANCE MANUAL
P/N 37615101, Rev. D [08/2011]
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Summary of Contents for ECR Olsen OMGB Series
- Page 1 INSTALLATION, OPERATION & MAINTENANCE MANUAL MODEL NUMBERS: OMGB50 OMGB75 OMGB100 OMGB125 OMGB150 OMGB175 OMGB200 OMGB250 OMGB300 ECR International 2201 Dwyer Avenue • Utica • New York • 13501 • USA An ISO 9001-2008 Certified Company P/N 37615101, Rev. D [08/2011] www.ecrinternational.com...
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Page 2: Table Of Contents
INSTALLATION, OPERATION AND MAINTENANCE MANUAL KEEP THIS MANUAL NEAR BOILER Ratings & Data - Natural Gas & Propane Gas ... 3 RETAIN FOR FUTURE REFERENCE Dimensions ............4 Installation Procedure .......... 5 Ventilation & Combustion Air ......... 6 IMPORTANT: Read the following instructions COMPLETELY before installing!! Connecting Supply and Return Piping ..... -
Page 3: Ratings & Data - Natural Gas & Propane Gas
RATINGS & DATA - NATURAL GAS & PROPANE GAS EXPLANATORY NOTES All boilers are design certifi ed for installation on noncombustible fl oor. For installation on combustible fl oors use combustible fl oor kit. Recommended chimney height 20 feet. In special cases where conditions permit, chimney height may be reduced to 10 feet. -
Page 4: Dimensions
DIMENSIONS... -
Page 5: Installation Procedure
INSTALLATION PROCEDURE FOR INSTALLATION ON NON-COMBUSTIBLE WARNING FLOORS ONLY - For installation on combustible fl ooring special base must be used. (See Replacement Improper installation, adjustment, alteration, Parts Section.) Boiler can not be installed on service or maintenance can cause injury or carpeting. -
Page 6: Ventilation & Combustion Air
VENTILATION & COMBUSTION AIR Provide combustion air and ventilation air in accordance • All Outdoor Air. Provide permanent opening(s) with the section “Air for Combustion and Ventilation,” of the communicating directly or by ducts with outdoors. National Fuel Gas Code, ANSI Z223.1/NFPA 54, or Sections Two Permanent Opening Method. -
Page 7: Connecting Supply And Return Piping
CONNECTING SUPPLY AND RETURN PIPING WARNING To avoid burns, scalding, or water damage due to discharge of steam and/or hot water during operation, a discharge line shall be installed to relief valve outlet connection. Discharge line shall: • connect to relief valve outlet and piped down to safe point of disposal. Check local codes for maximum distance from fl... -
Page 8: Connecting Supply And Return Piping
CONNECTING SUPPLY AND RETURN PIPING IMPORTANT: Circulators in the following illustrations are mounted on the system supply side, but mounting on the system return side is also acceptable practice. Figure 5 - Circulators Mounted on System Supply The boiler, when used in connection with a refrigeration Bypass piping is an option which gives the ability to system, must be installed so the chilled medium is adjust the supply boiler water temperature to fi... - Page 9 CONNECTING SUPPLY AND RETURN PIPING Figure 6 - Bypass Piping Automatic Mixing Valve TO SYSTEM FROM SYSTEM WATER INLET EXPANSION TANK BOILER ALTERNATE CIRCULATOR LOCATION PRESSURE BALL VALVE AIR SEPARATOR CIRCULATOR REDUCER VALVE SHUT-OFF 3 WAY MIXING CHECK VALVE HOSE BIB VALVE VALVE Figure 7 - Bypass Piping - Fixed Low Temp Only Automatic Mixing Valve...
- Page 10 CONNECTING SUPPLY AND RETURN PIPING Figure 8 - Single Zone System With DHW Priority CH CIRCULATOR WATER INLET EXPANSION TANK CIRCULATOR BOILER PRIORITY ZONE PRESSURE BALL VALVE CIRCULATOR HOSE BIB REDUCER VALVE AIR SEPARATOR FLOW CONTROL SHUT-OFF ZONE VALVE CHECK VALVE VAVLE VALVE Figure 9 - Multi Zone System With Circulators And DHW Priority...
- Page 11 CONNECTING SUPPLY AND RETURN PIPING Figure 10 - Multi Zone System With Zone Valves And DHW Priority (With Circulator) ZONE 4 ZONE 3 *USE FULL PORT ZONE VALVE. ZONE 2 CIRCULATOR ZONE 1 (PRIORITY ZONE) WATER INLET CIRCULATOR EXPANSION BOILER TANK PRESSURE BALL VALVE...
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Page 12: Vent Installation
VENT INSTALLATION This boiler series is classifi ed as a Category I. Vent WARNING installation shall be in accordance with "Venting of Equipment," of the National Fuel Gas Code, ANSI All installations of boilers and venting should Z223.1/NFPA 54, or "Venting Systems and Air Supply be done only by a qualifi... -
Page 13: Vent Damper Installation & Instructions
VENT DAMPER INSTALLATION & INSTRUCTIONS DAMPER INSTRUCTIONS DAMPER INSTALLATION NOTE: Refer to Figure 11 for steps 1-6. Figure 13 - Vent Damper Placement Figure 12 - Damper Motor Wiring Place Vent Damper on or as close to vent outlet of Verify only boiler is serviced by Vent Damper. -
Page 14: Connecting Gas Service
CONNECTING GAS SERVICE General CAUTION • Use piping materials and joining methods acceptable WHAT TO DO IF YOU SMELL GAS to authority having jurisdiction. In absence of such requirements: • Do not try to light any appliance. • USA - National Fuel gas Code, ANSI Z223.1/NFPA 54 •... -
Page 15: Electrical Section
ELECTRICAL SECTION WARNING Electrical shock hazard. Turn OFF electrical power supply at service panel before making electrical connections. Failure to do so could result in death or serious injury. ELECTRICAL WIRING See wiring diagrams on the following two pages for details. -
Page 16: Wiring Diagram - 24V Standing Pilot
WIRING DIAGRAM - 24V STANDING PILOT VR8200 VR8300... -
Page 17: Wiring Diagram - Intermittent Ignition
WIRING DIAGRAM - INTERMITTENT IGNITION... -
Page 18: Lighting Instructions
LIGHTING INSTRUCTIONS Do not use this appliance if any part has been under WARNING water. Immediately call a qualifi ed service technician to inspect appliance and to replace any part of control If you do not follow these instructions exactly, system and any gas control which has been under a fi... - Page 19 LIGHTING INSTRUCTIONS LIGHTING PROCEDURE FOR BOILER WITH Figure 17 - Continuous Pilot CONTINUOUS PILOT For Your Safety, Read Before Lighting!! Read the warning at the beginning of " Lighting Instructions." This appliance has a pilot which must be lighted by hand.
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Page 20: Normal Sequence Of Operation
NORMAL SEQUENCE OF OPERATION On a call for heat, the thermostat will actuate, Figure 18 - Blocked Vent Safety Switch, Roll-out completing the circuit to the control. The Safety Switch completed circuit to the control will fi rst activate Intergral Draft the circulator and damper which will close an Hood end switch inside the damper. - Page 21 GENERAL INSTRUCTIONS When the cleaning process is complete, restore the boiler Figure 21 - Gas Burner Pilot components to their original position. Use IS-808 GE silicone (available from a distributor) to seal around the fl ue collector and boiler castings. 3/8”...
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Page 22: Checking Gas Input Rate To Boiler
CHECKING GAS INPUT RATE TO BOILER Gas input to the boiler can be adjusted by removing the Figure 22 - High Limit Control Location protective cap on the pressure regulator, and turning the screw clockwise to increase input and counterclockwise to decrease input. -
Page 23: Replacement Parts - Base
REPLACEMENT PARTS - BASE BOILER BASE Item Item Description Part # Qty. Description Part # Qty. BURNER TUBE 1 1/2" - 50 SCREW ¼ - 20 X ½ SELF TAP HW-005.01 BURNER TUBE 1 1/2" - 75, 100 GAS VALVE VR8200H - 50 - 150 24V NAT VG-003.05 BURNER TUBE 1 1/2"... - Page 24 REPLACEMENT PARTS - HEAT EXCHANGER HEAT EXCHANGER Fully Assembled Heat Exchangers 912000001 Heat Exchanger (2 Section) 912000002 Heat Exchanger (3 Section) 912000003 Heat Exchanger (4 Section) 912000004 Heat Exchanger (5 Section) 912000005 Heat Exchanger (6 Section) 912000006 Heat Exchanger (7 Section) ROLLOUT &...
- Page 25 REPLACEMENT PARTS - JACKET BOILER JACKET Item Item DESCRIPTION Part Number Qty. DESCRIPTION Part Number Qty. PANEL - RIGHT 50-200 3162705 PANEL - TOP 50 31621501 PANEL - RIGHT 225-300 3162703 PANEL - TOP 75 & 100 31621502 PANEL - REAR 50 3162601 PANEL - TOP 125 31621503...
- Page 26 REPLACEMENT PARTS - PILOT STANDING PILOT Spark Pilot Kit - Natural Gas 550001911 Spark Pilot Kit - LP/Propane 550001912 Item Description Qty. PILOT BRACKET ASSEMBLY BRACKET SCREW SPARK CABLE PILOT TUBING, 1/8" x 24" Natural Gas Q345A PILOT LP Q345A Pilot Pilot Shield * Included with #3 - Pilot Tube Assembly Kit (above) CONTINUOUS PILOT...
- Page 27 REPLACEMENT PARTS - PIPING & CONTROLS PIPING & CONTROLS ITEM DESCRIPTION QTY. WIRE ROLLOUT/SPILL 28" 37513301 HARNESS IGN TO G/V 18" 37413602 PILOT IGNITION CABLE 30" PB00702 PIPE - NPL 1.1/4X4.1/2 NPT PF-006.07 DRAIN - SHORT HW-016.03 PIPE - TEE 1.1/4X3/4X1.1/4 PF-008.03 PIPE - 1.1/4"...
- Page 28 ECR International 2201 Dwyer Avenue, Utica NY 13501 web site: www.ecrinternational.com...
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