Table of Contents
Advertisement
Quick Links
C
b
C
olumbia
oiler
Main offices and Factory:
Pottstown, PA
Models
MCC-8D
MCC-8DP
MCC-9D
MCC-9DP
C.S.A. Certified for
Natural gas or
ompany
HOT WATER BOILERS
INSTALLATION, OPERATION &
Tested for 50 psi.
ASME Working
Propane
MCC SERIES
GAS-FIRED
MAINTENANCE MANUAL
Pressure
Manufactured by:
ECR International, Inc.
2201 Dwyer Avenue, Utica NY 13501
web site: www.ecrinternational.com
P/N 240009274, Rev. E [05/17/2017]
Advertisement
Table of Contents
Related Manuals for ECR International Columbia MCC Series
Summary of Contents for ECR International Columbia MCC Series
- Page 1 INSTALLATION, OPERATION & MCC-8DP MCC-9D MAINTENANCE MANUAL MCC-9DP C.S.A. Certified for Tested for 50 psi. Natural gas or ASME Working Propane Manufactured by: Pressure ECR International, Inc. 2201 Dwyer Avenue, Utica NY 13501 web site: www.ecrinternational.com P/N 240009274, Rev. E [05/17/2017]...
- Page 2 1 - DIMENSIONS Figure 1 - Dimensions Table 1 - Dimensions DIMENSIONS (INCH.) BOILER MODEL FLUE “A” NUMBER DIAMETER WIDTH MCC-8 27½ MCC-9 30¾ Add 5½” to height for vent Damper. P/N 240009274, Rev. E [05/17/2017]...
-
Page 3: Boiler Ratings And Capacities
2 - BOILER RATINGS AND CAPACITIES Table 2 - Ratings and Capacities † NATURAL GAS † PROPANE GAS AFUE BOILER MODEL NET AHRI HEATING INTERMITTENT Input Heating NET AHRI NUMBER INPUT RATING IGNITION CAPACITY Capacity RATING Water, WITH VENT DAMPER MCC-8 262.5 83.9... -
Page 4: Table Of Contents
3 - TABLE OF CONTENTS KEEP THIS MANUAL NEAR BOILER RETAIN FOR FUTURE REFERENCE 4 - Installation Procedure ........5 5 - Ventilation & Combustion Air ......6 6 - Connecting Supply and Return Piping ....7 IMPORTANT: Read the following instructions COMPLETELY before installing!! 7 - Chimney and Vent Pipe Connection .... -
Page 5: Installation Procedure
4 - INSTALLATION PROCEDURE WARNING WARNING Improper installation, adjustment, alteration, Fire hazard. Do not install boiler on service or maintenance could result in death or combustible flooring or carpeting. Failure to serious injury follow these instructions could result in death or serious injury. -
Page 6: Ventilation & Combustion Air
5 - 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,” communicating directly or by ducts with outdoors. of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 or A. -
Page 7: Connecting Supply And Return Piping
6 - CONNECTING SUPPLY AND RETURN PIPING WARNING Burn or Scald Hazard. Discharge line shall be installed to relief valve outlet connection to avoid burns, scalding, or water damage due to discharge of steam and/or hot water during operation. Discharge line shall: •... -
Page 8: For Use With Cooling Units
6 - CONNECTING SUPPLY AND RETURN PIPING Verify clean water supply is available to water inlet WARNING valve. Install sand strainer when water supply is from Burn and scald hazard. Safety relief valve a well or pump. could discharge steam or hot water during Install hot water boiler above radiation level or as operation. - Page 9 6 - CONNECTING SUPPLY AND RETURN PIPING Figure 4 - Typical Hot Water Piping Figure 5 - Chilled Water Piping P/N 240009274, Rev. E [05/17/2017]...
- Page 10 6 - CONNECTING SUPPLY AND RETURN PIPING Bypass Piping Required For High Mass (Large Water Content) Systems Figure 6 - BYPASS PIPING - CIRCULATOR ON SUPPLY Figure 7 - BYPASS PIPING - CIRCULATOR ON RETURN P/N 240009274, Rev. E [05/17/2017]...
-
Page 11: Chimney And Vent Pipe Connection
7 - CHIMNEY AND VENT PIPE CONNECTION Connecting The Vent Damper And Vent WARNING Connector Boiler and venting installations shall be Refer to Figure 1, page 2 for size and location of vent (flue opening). performed by a qualified expert and in accordance with the appropriate manual. - Page 12 7 - CHIMNEY AND VENT PIPE CONNECTION Place in operation the appliance being inspected. WARNING Follow the lighting instructions. Adjust thermostat Boiler and venting installations shall be so appliance will operate continuously. performed by a qualified expert and in Test for spillage at the draft hood relief opening accordance with the appropriate manual.
-
Page 13: Vent Damper Operation
8 - VENT DAMPER OPERATION Figure 8 - Vent Damper Installation Figure 9 - Vent Damper Placement Annually check vent damper and all flue product For further information, and vent damper carrying areas of appliance, with particular attention troubleshooting guide, refer to manual packaged with given to deterioration from corrosion or other vent damper. -
Page 14: What To Do If You Smell Gas
9 - GAS SUPPLY PIPING • Pressure test over 1/2 psig (3.5 kPa). Disconnect CAUTION boiler and its individual gas shutoff valve from gas WHAT TO DO IF YOU SMELL GAS supply system. • Do not try to light any appliance. •... -
Page 15: Electric Power Supply
10 - ELECTRICAL WIRING VENT DAMPER WIRING WARNING Boiler is equipped with factory wired harness with 4 Electrical shock hazard. Turn OFF electrical pin molex plug, that plugs into 4 pin molex receptacle power supply at service panel before making inside vent damper operator. -
Page 16: Wiring Diagrams
11 - WIRING DIAGRAMS Figure 12 - Electronic Ignition Control WARNING Modification, substitution or elimination of factory equipped, supplied or specified components may result in personal injury or loss of life. P/N 240009274, Rev. E [05/17/2017]... -
Page 17: Filling System With Water
12 -GENERAL INSTRUCTIONS FILLING SYSTEM WITH WATER NOTICE • Close air vents on all radiation units. Open valves Never run water in a hot empty boiler. to these units. • Verify boiler and expansion tank drain valves are closed. • Air bleed screw on tank drain fitting should be closed. -
Page 18: Lighting Instructions
13 - LIGHTING INSTRUCTIONS 5. Remove lower front panel. WARNING 6. Rotate the gas control knob clockwise If you do not follow these “OFF”. instructions exactly, a fire or Figure 15 - Automatic Gas Valve explosion may result causing property damage, personal injury or loss of life. -
Page 19: Operating Your Boiler
14 - OPERATING YOUR BOILER AUTOMATIC GAS VALVE Figure 16 - Pilot Flame Automatic Gas Valve opens or closes according to heat requirements of thermostat and temperature limit control. It closes if pilot goes out. Each individual control must be operating correctly before any gas can pass to burners. -
Page 20: Check Thermostat Operation
14 - OPERATING YOUR BOILER CHECK THERMOSTAT OPERATION A. When set above temperature indicated on thermostat, boiler should ignite. B. Verify thermostat turns boiler off when room temperature reaches selected setting and starts boiler operating when room temperature falls a few degrees. C. -
Page 21: Operating The Boiler - System Start-Up
OPERATING THE BOILER - SYSTEM START-UP HI TEMP illuminates when boiler water tempera- ture reaches high limit setting. Remains lit until water temperature falls 10°. Prevents burner operation while this LED is on. LWCO Active Indicates low water cut-off (LWCO) function of limit control is active. - Page 22 OPERATING THE BOILER - SYSTEM START-UP Table 1 - Troubleshooting Burner Will Not Fire If installed with indirect water heater, insure end switch in relay box controlling indirect No or Insufficient Domestic water heater is properly connected to cable 2 (see wiring diagram). This insures domestic Hot Water water calls are prioritized.
-
Page 23: Service Hints
SERVICE HINTS EQUIPMENT AND OPTIONAL ACCESSORIES - WHAT THEY DO 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. •... -
Page 24: Expansion Tank
15 - MAINTAINING YOUR BOILER BURNERS CLEANING YOUR BOILER AND BURNERS Beginning of heating season visually check pilot end Flue passages between sections should be examined main burner flames. See Figure 16. yearly and cleaned if necessary. To clean: SAFETY RELIEF VALVE •... -
Page 25: Equipment And Optional Accessories
17 - EQUIPMENT AND OPTIONAL ACCESSORIES AIR ELIMINATING FITTING (AIR PURGER) WARNING Air purger is used to remove excess air from system. Burn and scald hazard. Safety relief valve It is installed in supply line. It will eliminate air from could discharge steam or hot water during water before it reaches radiators and bleed off this air. -
Page 26: Rollout Switch
17 - EQUIPMENT AND OPTIONAL ACCESSORIES ROLLOUT SWITCH BLOCKED VENT SAFETY SWITCH (FLAME ROLLOUT SAFETY SHUTOFF) (BLOCKED VENT SAFETY SHUTOFF) Rollout switch is temperature-sensitive fuse link Blocked vent safety switch is manual reset disc device. Located on boiler base just outside fire box. thermostat with fixed setpoint (340°F (171°C)), and In event of heat exchanger flueway blockage causing normally closed contacts. -
Page 27: Pilot Troubleshooting
PILOT TROUBLESHOOTING Intermittent Pilot WARNING Ignition System Checks Electrical shock hazard. Ignition circuit gen- erates over 10,000 volts. Turn OFF electrical STEP 1: Check ignition cable. • Verify ignition cable does not touch metal surfaces. power supply at service panel before making electrical connections. - Page 28 PILOT TROUBLESHOOTING — If spark does not stop after pilot lights, replace Figure 18 - Troubleshooting Pilot Flame module. — If main burner does not light or if main burner lights and system locks out, check module, ground wire and gas control as described in troubleshooting table.
-
Page 29: Appendix A- Vent Damper Harness
APPENDIX A- VENT DAMPER HARNESS A.1 Vent Damper Harness - Molex Plugs • IF NOT, source problem is not the damper. Go to “Aquastat end of wiring WARNING harness’ Do Not negate the action of any existing safety or- • If boiler ignites: Go to section A.2 perational controls. -
Page 30: Appendix A-2 - Vent Damper Troubleshooting
APPENDIX A - VENT DAMPER TROUBLESHOOTING A.2 Vent Damper Troubleshooting Guide WARNING Do Not negate the action of any existing safety or- perational controls. Avoidance of these instructions could result in death or serious injury. When servicing controls, all wires must Note be labeled prior to disconnection. - Page 31 APPENDIX A - VENT DAMPER TROUBLESHOOTING For troubleshooting only. Verify damper Note is in open position. Use service switch to keep damper in open position. Place jumper between 2 & 3. If appliance fires, remove jumper and plug receptacle back into damper controller plug.
- Page 32 I M P O R T A N T In accordance with Section 325 (f) (3) of the Energy Policy and Conservation Act, this boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the heating load decreases. This feature is equipped with an override which is provided primarily to permit the use of an external energy management system that serves the same function.
Need help?
Do you have a question about the Columbia MCC Series and is the answer not in the manual?
Questions and answers