Natco Fire Coil 85 Installation And Operation Instructions Manual Download Page 39 | Manualshive

Page: 39 / 40

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Fire Coil 85

(500-2000)

Page 39

Figure 25. Heat Exchanger Components.

Fire Coil 85 Hydronic Boiler

Size

Pump p/n

500

A2001700

750

A2001700

1000

A2001800

1250

A2001800

1500

A2001900

1750

A2001900

2000

A2109700

Fire Coil 85 Water Heater

Size

Pump p/n

Soft Water

Normal Water

Hard Water

500

A2001700

A2001700

A2001900

750

A2001700

A2001700

A2001900

1000

A2001700

A2001800

A2001900

1250

A2001700

A2001800

A2001900

1500

A2001700

A2001900

A2001900

1750

A2001900

A2001900

A2001900

2000

A2109700

A2109700

A2109700

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Summary of Contents for Fire Coil 85

Page 1: ...essence ni d autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ou de tout autre appareil QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ Ne pas tenter d allumer d appareils Ne touchez à aucun interrupteur Ne pas vous servir des téléphones dansle bâtiment où vous vous trouvez Appelez immédiatement votre fournisseur de gaz depuis un voisin Suivez les instructions du fournisseur Si ...

Page 2: ... 4B Water Connections Water Heaters 4B 1 Water System Piping Water Heater 14 4B 2 Hot Water Supply Piping Water Heater 15 4B 3 Water Flow Requirements Water Heater 15 4B 4 Combined Water Heating potable and Space Heating Water Heater 15 4B 5 Freeze Protection Water Heater 15 SECTION 5 Electrical Connections 5 1 Main Power 21 5 2 Field Wiring 21 5 3 External Staging Control Wiring 26 SECTION 6 Oper...

Page 3: ...mpletely before proceeding with the installation Consult the National Combustion Co factory or local factory representative with any issues or questions regarding this equipment Experience has shown that most operating issues are caused by improperinstallation The Fire Coil 85 appliance is protected against over pressurization A pressure relief valve is fitted to all appliances It is installed on ...

Page 4: ...iance or to lower floors of the structure When such a location is not available it is recommended that a suitable drain pan adequately drained be installed under the appliance The appliance is design certified by CSA International for installation on combustible flooring in basements in closets utility rooms or alcoves Fire Coil 85 Boilers or Water Heaters must never be installed on carpeting The ...

Page 5: ... Distance from Outside Wall The forced draft combustion air blower blowers in Figure 1 Dimensional Data standard units Air Vent Shipping Weight1 Unit Conn Conn Size A B C D E W V lbs kg 500 33 85 16 43 6 17 10 25 8 20 6 15 8 20 425 193 750 45 116 22 53 6 17 10 25 9 24 6 15 10 25 505 229 1000 57 147 28 73 6 17 10 25 9 24 8 20 10 25 615 279 1250 68 173 34 87 10 26 10 25 9 23 8 20 12 30 675 306 1500 ...

Page 6: ...36 Figure 2 Dimensional Data pump mounted models HORIZONTAL AIR COLLAR UNIT VENT COLLAR VENTPIPE PIPE MAX PIPE MAX NO SIDE WALL SIDE WALL SIZE SIZE DIAMETER DIAMETER LENGTH OF ELBOWS VENT COMBUSTION TERMINAL AIRTERMINAL in cm in cm in cm ft m PARTNUMBER PARTNUMBER 500 8 20 6 15 6 15 50 15 3 CA001401 20260701 750 10 25 8 20 6 15 50 15 3 CA001401 20260701 1000 10 25 8 20 8 20 50 15 3 CA001402 202607...

Page 7: ...od for each Fire Coil 85 model Method 2 One permanent opening commencing within 12 inches 30 cm of the top of the enclosure shall be permitted The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that directly communicate with the outdoors and shall have a minimum free area of 1 square inch per 3000 BTU hr 7 s...

Page 8: ...care must be taken by the installer to ensure safe operation In the event that the common vent is blocked it is possible especially for fan assisted devices to vent backwards through non operating appliances sharing the vent allowing combustion products to infiltrate occupied spaces If the appliances are allowed to operate in this condition serious injury or death may occur WARNING Operation of ap...

Page 9: ...settle on building surfaces or other nearby objects Vent products may damage such surfaces or objects 7 If the boiler or water heater uses ducted combustion air from an intake terminal located on the same wall locate the vent terminal at least 3 feet 0 9m horizontally from the combustion air terminal and locate the vent terminal at least 1 foot 0 3m above the combustion air terminal 2 3 2 SideWall...

Page 10: ...y inlet 3 feet 91 cm above if within 10 feet 3 m 6 feet 1 83 m horizontally Vent termination not allowed in this location Vent termination not allowed in this location for category IV appliances Avent shall not L Clearance above paved sidewalk or paved for category IV appliances For Category III terminate directly above a sidewalk or paved driveway located on public property appliances vent must t...

Page 11: ...tructure used in whole or in part for residential purposes c MANUFACTURER REQUIREMENTS GAS EQUIPMENT VENTING SYSTEM PROVIDED When the manufacturer of ProductApproved side wall horizontally vented gas equipment provides a venting system design or venting system compo nents with the equipment the instructions provided by the manufacturer for installation of the equipment and the venting system shall...

Page 12: ...NSI Z223 1 NFPA 54 and or CSA B149 1 Installation Codes When resizing any portion of the common venting system the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Part II of the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CSA B149 1 Installation Codes 2 5 Vent Terminals for Outdoor Units For outdoor applications the vent and ...

Page 13: ...m capacity to properly measure the inlet supply pressure The pressure can be measured at the supply pressure port on the gas valve Low gas pressure could be an indication of an undersized gas meter undersized gas supply lines and or an obstructed gas supply line SECTION 4A Water Connections Boiler 4A 1 Heating System Piping Hot Supply Connections Boiler NOTE This appliance must be installed in a c...

Page 14: ...Fire Coil 85 is 120 F 49 C to avoid condensing on the copper coils 4A 4 Freeze Protection Boiler Boiler installations are not recommended in areas where the danger of freezing exists unless proper precautions are made for freeze protection A non toxic heating system anti freeze may be added to the hydronic system provided that the concentration does not exceed 50 and the anti freeze contains an an...

Page 15: ...specifies water flow rates for water heaters which will enable the user to size a pump The headloss shown is for the heater only and the user will need to add the headloss of the piping system to properly size the pump 4B 4 Combined Water Heating potable and Space Heating Water Heater NOTE These systems are not allowed in the Commonwealth of Massachusetts Piping and components connected to this wa...

Page 16: ...National Combustion Co Inc Page 16 Figure 6 Hydronic Piping Multiple Boilers Primary Secondary System Figure 7 Hydronic Piping Multiple Boilers Low Temperature System ...

Page 17: ...Fire Coil 85 500 2000 Page 17 Figure 8 Hydronic Piping One Boiler Multi Temperature System Figure 9 Hydronic Piping Primary Secondary Reverse Return ...

Page 18: ...National Combustion Co Inc Page 18 Figure 10 Hydronic Piping Primary Secondary Reverse Return Low Temperature Figure 11 Water Heater Piping One Heater One Tank ...

Page 19: ...Fire Coil 85 500 2000 Page 19 Figure 12 Water Heater Piping Multiple Heaters One Tank Figure 13 Water Heater Piping One Heater Multiple Tanks ...

Page 20: ...8 25 19 170 257 341 0 6 1 1 1 9 21 14 10 1250 68 68 90 3 8 3 8 6 3 31 31 24 257 257 341 1 2 1 2 1 9 17 17 13 1500 68 68 90 3 9 3 9 6 5 38 38 28 257 257 341 1 2 1 2 2 0 21 21 16 1750 68 68 90 4 0 4 0 6 7 44 44 33 257 257 341 1 2 1 2 2 0 24 24 18 2000 112 112 112 10 0 10 0 10 0 30 30 30 424 424 424 3 0 3 0 3 0 17 17 17 NOTES S soft water 1 to 7 5 grains hardness N normal water 7 6 to 17 grains hardn...

Page 21: ...Main Power The Fire Coil 85 main power requires a 120 volt fused supply that is connected to the main power terminal strip The over current protection must be sized as specified see Figure 15 The MT2 pump pump mount units requires a separate additional 120 volt fused supply connected to the pump terminal strip also specified in Figure 15 5 2 Field Wiring Main Power The main 120V field wiring panel...

Page 22: ...National Combustion Co Inc Page 22 Figure 18 Fire Coil 85 1250 2000 Wiring Diagram Figure 17 Fire Coil 85 1000 Wiring Diagram ...

Page 23: ...Fire Coil 85 500 2000 Page 23 Figure 19 Fire Coil 85 500 750 Connection Diagram ...

Page 24: ...National Combustion Co Inc Page 24 Figure 20 Fire Coil 85 1000 Connection Diagram ...

Page 25: ...Fire Coil 85 500 2000 Page 25 Figure 21 Fire Coil 85 1250 2000 Connection Diagram ...

Page 26: ... been satisfied Models 1250 2000 calls for pump proof of flow initiate fan then prove fan after which pressure circuit has been satisfied The fan prove will only occur for the active stage that has been called When pressure circuit has been satisfied proving combustion air and adequate water flow the hot surface igniter will initiate The ignition control checks that the igniter current reached a p...

Page 27: ...r debris from the make up water line Reopen make up water valve 13 Check gauge for correct water pressure and also check water level in the system If the height indicated above the boiler insures that water is at the highest point in the circulating loop then the system is ready for operation 14 Refer to local codes and the make up water valve manufacturer s instructions as to whether the make up ...

Page 28: ... being adjusted is energized by a call for heat from the staging control After all of the gas valve manifold pressures have been set the CO2 or O2 must be reset CO2 or O2 will have changed when the manifold pressure was adjusted Open the air shutter s to reduce the CO2 or O2 to the values achieved previously 6 6 Operating the Burner and Set Up 6 6 1 Set Up for 0 to 2500 Feet Altitude The Fire Coil...

Page 29: ... burner panels Inspect the burners Clean burners if necessary by blowing compressed air from the outside of the burners into the center of the burner A dirty burner may be an indication of improper combustion or dirty The procedure is complete when all gas valves are adjusted to a manifold pressure of 3 0 in W C 0 75 kPa and the CO2 is adjusted to 8 0 for Natural Gas appliances or 9 2 for LP appli...

Page 30: ...On sizes up to 750 one ignition control controls stages 1 and 2 On unit sizes 1000 2000 one ignition control is for stage 1 and the other is for stage 2 To replace a control shut off the 120 volt power to the appliance Remove the cover from the control panel Remove the electrical connectors from the ignition control Take out the controller s mounting screws and pull the controller out Replace in r...

Page 31: ...re brush to remove loose soot and scale from the heat exchanger Do not use water or compressed air for cleaning 9 Note While the heat exchanger is out of the unit inspect the firewall refractory insulation Replace if necessary 10 Inspect the inside of the copper tubes for scale buildup Scale can build up on the inner surface of the heat exchanger tubes which can restrict water flow If the tubes sh...

Page 32: ...rough the water heater The cause should be determined and corrected 8 5 High Gas Consumption Appliances operating with an improper air fuel ratio are very inefficient and consequently have very high gas consumption Because efficiency is high when the CO2 is high or O2 is low appliances operating with low CO2 or high O2 especially LP appliances consume more gas Adjust the CO2 or O2 for optimum effi...

Page 33: ...3015 5F3015 13 Cover Housing Pump 5F3016 5F3016 5F3016 5F3016 5F3016 5F3016 5F3016 14 Cover Pipe Gas Manifold 5F3304 5F3304 10F3304 20F3304 20F3304 20F3304 20F3304 2 2 2 2 2 2 2 Internal Components See Figure 24 16 Assembly Base 5F1020 7F1020 10F1020 12F1020 15F1020 17F1020 20F1020 17 Panel Front Combustion Chamber 5F2003 7F2003 10F2003 12F2003 15F2003 17F2003 20F2003 18 Panel Rear Combustion Cham...

Page 34: ...17400 T2018000 T2017400 T2018000 T2017400 45 Tile Bottom Center T2015900 T2015900 T2015900 T2015900 1 1 2 2 Gas Train Components See Figure 24 46 Blower A2111900 A2111900 A2111900 A2111900 A2111900 A2111900 A2111900 1 1 1 2 2 2 2 47 Weldment Blower Mount 5C5300 5C5300 5C5300 5C5300 5C5300 5C5300 5C5300 1 1 1 2 2 2 2 47A Assembly Blower Damper 15C5400 15C5400 15C5400 15C5400 2 2 2 2 48 Manifold Gas...

Page 35: ...A0079000 A0079000 A0079000 A0079000 62 Tee Adapter Outlet Cast Iron 20130001 20130001 20130002 20130002 20130002 20130002 20130002 Tee Adapter Outlet Cast Iron boiler 20130009 20130009 Tee Adapter Outlet Bronze 20150302 20150302 20150303 20150303 20150303 20150303 20150303 63 Relief Valve Hydronic 75 Psi A0063300 A0063300 A0063600 A0063600 A0063600 A0063600 A0002700 Relief Valve Water Heater 125 P...

Page 36: ...F7001 5F7001 80 Panel Cover High Limit Ignition Control 5F7003 5F7003 5F7003 5F7003 5F7003 5F7003 5F7003 81 Panel Access Terminal 5F7006 5F7006 5F7006 5F7006 5F7006 5F7006 5F7006 82 Switch Rocker 20A 125 VAC 1 HP E2337700 E2337700 E2337700 E2337700 E2337700 E2337700 E2337700 83 Terminal Block 6 Position Dual Row E2327700 E2327700 E2327700 E2327700 E2327700 E2327700 E2327700 84 Terminal Block 12 Po...

Page 37: ...Fire Coil 85 500 2000 Page 37 Figure 23 Sheet Metal Components ...

Page 38: ...National Combustion Co Inc Page 38 Figure 24 Internal Components ...

Page 39: ...250 A2001800 1500 A2001900 1750 A2001900 2000 A2109700 Fire Coil 85 Water Heater Size Pump p n Soft Water Normal Water Hard Water 500 A2001700 A2001700 A2001900 750 A2001700 A2001700 A2001900 1000 A2001700 A2001800 A2001900 1250 A2001700 A2001800 A2001900 1500 A2001700 A2001900 A2001900 1750 A2001900 A2001900 A2001900 2000 A2109700 A2109700 A2109700 ...

Page 40: ...ange specifications components features or to discontinue products without notice Ph 1 888 OK NATCO Fax 718 291 6870 Customer Service Applications Technical Service 104 11 180th Street Jamaica NY 11433 718 291 6870 email sales nationalcombustion com www nationalcombustion com Litho in U S A NATCO Heating Systems 1012 Document 1241 ...

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