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Columbia MCB100, Installation, Operation & Maintenance Manual

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Columbia MCB100 Installation, Operation & Maintenance Manual Download Page 1

 P/N 

37612101

, Rev. E  [05/2012]

C

olumbia

 C

ompany

Main offices and Factory:

Pottstown, PA

MCB SERIES 

Cast Iron Gas Fired Boilers 

For Forced Hot Water

INSTALLATION, OPERATION & 

MAINTENANCE MANUAL

MODEL NUMBERS:

MCB50

MCB75

MCB100

MCB125 MCB150 MCB175
MCB200 MCB250 MCB300

Summary of Contents for MCB100

Page 1: ...olumbia Company Main offices and Factory Pottstown PA MCB SERIES Cast Iron Gas Fired Boilers For Forced Hot Water INSTALLATION OPERATION MAINTENANCE MANUAL MODEL NUMBERS MCB50 MCB75 MCB100 MCB125 MCB150 MCB175 MCB200 MCB250 MCB300 ...

Page 2: ...serious injury CAUTION Indicates a hazardous situation which if not avoided may result in minor or moderate injury NOTICE Indicates information which should be followed to ensure proper installation and operation WARNING Keep boiler area clear and free from combustible materials gasoline and other flammable vapors and liquids DO NOT obstruct air openings to the boiler room Modification substitutio...

Page 3: ...a level Canada 2000 ft 610m to 4500 1350m above sea level Reduce input per table Canada over 4500 ft 1350m above sea level Contact Provincial authority having jurisdiction 2 Net Water Ratings shown based on piping and pickup allowance of 1 15 Consult manufacturer before selecting boiler for installations having unusual piping and pickup requirements such as intermittent system operation extensive ...

Page 4: ...pply Return Tappings A B C D E F 50 11 5 4 30 36 6 1 75 15 7 5 30 37 6 1 100 15 7 6 30 37 6 1 125 18 9 6 30 37 6 1 150 18 9 7 30 37 7 1 175 22 11 7 30 38 7 1 200 22 11 8 30 38 8 1 250 26 13 16 13 8 30 40 8 1 300 30 15 9 30 42 10 1 Propane gas inlet all units 1 2 DIMENSIONS ...

Page 5: ... replacement condensate trap control replacement etc 6 Locate boiler on level solid base as near the chimney as possible and centrally located with respect to the heat distribution system as practical 7 Allow 24 inches 610mm at front and right side for servicing and cleaning 8 When installed in utility room door should be wide enough to allow largest boiler part to enter or to permit replacement o...

Page 6: ...ith outdoors о о Two Permanent Opening Method Provide opening commencing within 12 inches of top and second opening commencing within 12 inches of bottom enclosure Direct communication with outdoors or communicating through vertical ducts Provide minimum free area of 1 in2 per 4 Mbh of total input rating of all appliances in enclosure Communicating through horizontal ducts Provide minimum free are...

Page 7: ... plug or place any obstruction in discharge line terminate freely to atmosphere where any discharge will be clearly visible and at no risk of freezing allow complete drainage of the valve and the discharge line be independently supported and securely anchored to avoid applied stress on the relief valve be as short and straight as possible terminate with plain end not threaded be constructed of mat...

Page 8: ... each circulator must be supplied with a flow control valve to prevent gravity circulation 5 Hot water boilers and system must be filled with water and maintained to a minimum pressure of 12 psi 6 Bypass piping is an option which gives the ability to adjust the supply boiler water temperature to fit the system or the condition of the installation This method of piping however is not typically requ...

Page 9: ...iping shall be independent of other discharge piping Size and arrange discharge piping to avoid reducing safety relief valve relieving capacity below minimum relief valve capacity stated on rating plate Run pipe as short and straight as possible to location protecting user from scalding and properly drain piping Install union if used close to safety relief valve outlet Install elbow s if used clos...

Page 10: ...10 CONNECTING SUPPLY AND RETURN PIPING Figure 8 Single Zone System With DHW Priority Figure 9 Multi Zone System With Circulators And DHW Priority ...

Page 11: ...11 CONNECTING SUPPLY AND RETURN PIPING Figure 10 Multi Zone System With Zone Valves And DHW Priority With Circulator Figure 11 Multi Zone System With Zone Valves And Dhw Priority With Zone Valve ...

Page 12: ...ING This boiler shall not be connected to any portion of a mechanical draft system operating under positive pressure VENT SYSTEM MODIFICATION REMOVAL OF BOILER FROM VENTING SYSTEM At the time of removal of an existing boiler the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation while the other appliances remaining connected t...

Page 13: ...NS 1 Verify only boiler is serviced by Vent Damper Figure 13 2 Clearance of not less than 6 inches 152mm between Vent Damper and combustible material must be maintained Additional clearance should be allowed for service of Vent Damper 3 Vent Damper must be in the open position when appliance main burners are operating 4 The Vent Damper position indicator must be in a visible location following ins...

Page 14: ... serious injury Leak Check Gas Piping Pressure test boiler and gas connection before placing boiler in operation Pressure test over 1 2 psig 3 5 kPa Disconnect boiler and its individual gas shutoff valve from gas supply system Pressure test at 1 2 psig 3 5 kPa or less Isolate boiler from gas supply system by closing manual gas shutoff valve Locate leakage using gas detector noncorrosive detection ...

Page 15: ...bove the floor 2 NEVER install a thermostat on an outside wall 3 Do not install a thermostat where it will be affected by drafts hot or cold pipes sunlight lighting fixtures televisions a fireplace or a chimney 4 Check thermostat operation by raising and lowering thermostat setting as required to start and stop the burners 5 Instructions for the final adjustment of the thermostat are packaged with...

Page 16: ...16 VR8200 OR VR8300 WIRING DIAGRAM 24V STANDING PILOT ...

Page 17: ...17 WIRING DIAGRAM INTERMITTENT IGNITION ...

Page 18: ...tion to the left 2 Set the thermostat to lowest setting 3 Turn off all electric power to the appliance 4 This appliance is equipped with an ignition device which automatically lights the pilot Do not try to light the pilot by hand Figure 15 Intermittent Pilot 5 Turn gas control knob clockwise to OFF 6 Wait 5 minutes to clear out any gas If you then smell gas STOP Follow What To Do If You Smell Gas...

Page 19: ...ontrol knobs cannot be turned from PILOT to OFF unless knob is pushed in slightly DO NOT FORCE 6 Wait 5 minutes to clear out any gas If you then smell gas STOP Follow What To Do If You Smell Gas on previous page If you don t smell gas go to the next step 7 Find pilot Follow metal tube from gas control Depend ing on the model of the boiler pilot is either mounted on the base or on one of the burner...

Page 20: ...ators need to be checked and maintained Refer to the circulator manufacturer s instructions The venting system should be inspected at the start of each heating season Check the vent pipe from the boiler to the chimney for signs of deterioration by rust or sagging joints Repair if necessary Remove the vent pipe at the base of the chimney or flue and using a mirror check vent for obstruction and mak...

Page 21: ...wise to increase or clockwise to decrease pilot flame Be sure to replace cover screw after adjustment to prevent possible gas leakage Figures 15 17 on previous pages The burners and pilot should be checked for signs of corrosion rust or scale buildup The area around the boiler must be kept clear and free of combustible materials gasoline and other flammable vapors and liquids The free flow of comb...

Page 22: ...minus 0 3 inches water column from the specified pressure Primary air adjustment is not necessary therefore air shutters are not furnished as standard equipment Air shutters can be furnished on request where required by local codes or conditions CHECK SAFETY CONTROL CIRCUIT Ignition system safety shutoff device must be tested after placing boiler in operation Figures 15 17 on previous pages 1 Pilo...

Page 23: ...TAP HW 005 01 4 6 GAS VALVE VR8200H 50 150 24V NAT VG 003 05 1 GAS VALVE VR8200H 50 300 24V LP VG00307 GAS VALVE VR8204H 50 150 SPARK NAT VG01101 GAS VALVE VR8304H4 175 300 SPARK NAT VG01103 GAS VALVE VR8304 50 300 SPARK LP VG01104 GAS VALVE VR8300H4 250 300 24V NAT VG01201 GAS VALVE VR8300H4 175 200 24V NAT VG01202 7 ORIFICE3 2mmNAT 50 100 150 200 250 300 240007406 ORIFICE 3 0mm NAT 175 240007404...

Page 24: ...Exchanger 7 Section ROLLOUT SPILL SWITCH Item Description Part Qty 1 2 SECTION TEMP SENSOR BRACKET 32611001 1 3 SECTION TEMP SENSOR BRACKET 3262001 1 4 SECTION TEMP SENSOR BRACKET 109008517 1 5 7 SECTION TEMP SENSOR BRACKET 109008518 1 2 CONTROL FIXEDTEMPERATURETHERMO ROLLOUT SWITCH AQ02101 1 3 SCREW 6 X HEX HD HW06501 2 Rollout switch is located on base and flue collector NOTE Quantities above ar...

Page 25: ...5 150 109008530 PANEL BASE 175 200 109008531 PANEL BASE 250 109008532 PANEL BASE 300 109008533 Item DESCRIPTION Part Number Qty 6 PANEL RIGHT 50 200 3162705 1 PANEL RIGHT 225 300 3162703 7 PANEL REAR 50 3162601 1 PANEL REAR 75 100 3162602 PANEL REAR 125 150 3162603 PANEL REAR 175 200 3162604 PANEL REAR 250 3162605 PANEL REAR 300 3162606 8 FLUE COL 50 3462101 1 FLUE COL 75 3462108 FLUE COL 100 3462...

Page 26: ... 6 Pilot Shield 1 Included with 3 Pilot Tube Assembly Kit above Continuous Pilot Kit Natural Gas 550001926 Continuous Pilot Kit LP Propane 550001927 Item Description Qty 1 PILOT BRACKET ASSEMBLY 1 2 BRACKET SCREW 2 3 THERMOCOUPLE Q309 1 4 PILOT TUBING 1 8 x 24 1 5 Natural Gas Q314A PILOT 1 LP Q314A Pilot Included with 3 Pilot Tube Assembly Kit above 1 5 3 4 2 REPLACEMENT PARTS PILOT 1 5 4 2 3 6 ST...

Page 27: ...E 1 1 4X3 4X1 1 4 PF 008 03 1 7 PIPE 1 1 4 CLOSE NPL PF 006 01 1 8 WIRE LOW VOLTAGE DAMPER 375 1 14 01 1 9 HARNESS CIRCULATOR 72 37519501 1 10 CONTROL L8148E1257 AQUASTAT 1010002 1 11 RELIEF VALVE 30 VR 001 01 1 12 WELL 3 4 X3 AQ 020 01 1 13 GAUGE THERALTIMETER GA 001 00 1 14 PIPE NPL 3 4 X4 PF 005 11 1 15 PIPE ELBOW 3 4 90 PF 002 04 1 16 CLAMP 3600 WHITE EF03601 2 17 PLT SPARK CTRL S8600 PB00604 ...

Page 28: ...Columbia Company Main offices and factory Pottstown PA ...

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