Navien NCB-150E Installation & Operation Manual

Ncb-e condensing combi-boilers

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Summary of Contents for Navien NCB-150E

Page 1 Installation & Operation Manual NCB-E Condensing Combi-Boilers Model NCB-150E NCB-180E NCB-210E NCB-240E Keep this manual near this boiler for future reference whenever maintenance or service is required. NSF/ANSI 372 * The wetted surface of this product contacted by consumable water contains less than one quarter of one percent (0.25%) of lead by weight.
Page 2 Requirements for the State of Massachusetts NOTICE BEFORE INSTALLATION This appliance must be installed by a licensed plumber or gas fitter in accordance with the Massachusetts Plumbing and Fuel Gas Code 248 CMR Sections 2.00 and 5.00. IMPORTANT: In the State of Massachusetts (248 CMR 4.00 & 5.00) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall...
Page 3: Table Of Contents
Contents Safety Information 7. Setting the DIP Switches 7.1 PCB DIP Switches 7.2 Front Panel Dip Switches 1. About the Boiler 1.1 Items Included 8. Connecting the Power Supply 1.2 Accessories 1.3 Specifications 9. Installation Check list 1.4 Components 1.5 Dimensions 1.6 Rating Plate 10.
Page 4: Safety Information
Safety Information The following safety symbols are used in this manual. Read and follow all safety instructions in this manual precisely to avoid DANGER unsafe operating conditions, fire, explosion, property damage, personal injury, or death. DANGER Indicates an imminently hazardous situation which, if not avoided, could result in severe injury or death.
Page 5 CAUTION WARNING Do not turn on the boiler unless the water and gas supplies are fully opened. Doing so may damage the boiler. Do not turn on the water if the cold water supply shut- off valve is closed. Doing so may damage the boiler. Do not use this boiler for anything other than its intended purpose, as described in this manual.
Page 6 DANGER DANGER This boiler’s water temperature is set to 120°F (49°C) at the factory for your safety and comfort. Increasing the temperature increases the risk of accidental scalding. Water temperatures at or above 125°F (52°C) can cause instant scalding, severe burns, or death.
Page 7: About The Boiler
Pressure Relief Valve, Heating Flow Restrictors Spare Parts Conversion Kit 1.2 Accessories The following optional accessories are available for the boiler: Plumb Easy Valve Set Outdoor Temperature Navien Manifold System Condensate Neutralizer Sensor with Cable (Pressure Relief Valve, DHW) About the Boiler...
Page 8: Specifications
2. Based on U.S. Department of Energy (DOE) test procedures. 3. The net AHRI water ratings shown are based on a piping and pickup allowance of 1.15. Consult Navien before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping system, etc.
Page 9 General Specifications Item NCB-150E NCB-180E NCB-210E NCB-240E Dimensions 17 in (W) x 28 in (H) x 13 in (D) Weight 66 lbs (30 kg) 74 lbs (34 kg) 84 lbs (38 kg) 84 lbs (38 kg) Installation Type Indoor Wall-Hung...
Page 10: Components
1.4 Components The following diagram shows the key components of the boiler. Component assembly diagrams and particular parts lists are included in the Appendixes. Intake Air Exhaust Air Filter Flue Duct Mixing Chamber Ignitor & Flame Rod Condensate Trap Front Panel Auto Feeder (Make-up water) Power Switch...
Page 11 Pressure Relief Valve Adapter Fan & Motor Dual Venturi Ignition Transformer High Limit Switch Premix Burner Primary Heat Exchanger Air Pipe Secondary Heat Exchanger Gas Pipe Pressure Sensor (LWCO) Air Vent Gas Valve Circulation Pump Flow Sensor 3-Way Valve DHW Inlet Filter (with built-in flow restrictor) Space Heating DHW Inlet...
Page 12: Dimensions
1.5 Dimensions The following diagrams show the dimensions of the boiler and the table lists the supply connections. Supply Connections Description Diameter Pressure Relief Valve Adapter Air Intake 2 in Exhaust Gas Vent 2 in Space Heating Supply 1 in Space Heating Return 1 in Hot Water Outlet (DHW)
Page 13: Rating Plate
Installation procedures at normal manifold pressure. For installation instructions at altitudes higher than 4,500 ft, please contact Navien. *Cet appareil est certifié pour une utilisation à des altitudes de 0 à 4,500 pieds (1,370 m) conformément aux toutes les procédures d’installation à...
Page 14: Installing The Boiler
Installing the boiler in a location without a drain will void the warranty and Navien will not be responsible for water damages that occur as a result. For more information about condensate drainage, refer to “3.3 Connecting the Condensate Drain”...
Page 15 Adequate installation clearances Clearance from: Indoor Installation 9 in (229 mm) minimum CAUTION Back 0.5 in (13 mm) minimum Do not install the boiler on carpeting. Front 4 in (100 mm) minimum Sides 3 in (76 mm) minimum Install the boiler in an area that allows for service and maintenance Bottom 12 in (300 mm) minimum access to utility connections, piping, filters, and traps.
Page 16: Mounting The Boiler To The Wall
2.2 Mounting the Boiler to the Wall WARNING Navien NCB-E boilers come with an upper mounting bracket that is pre-drilled at 16 in (400 mm) on center for easy installation on The boiler is heavy. Always lift the unit with assistance. Be standard wall studs.
Page 17: Installing The System Piping
All systems, old and new, system. Freeze protection for new or existing systems requires must be cleaned to remove flux, grease and carbon residue. Navien specially formulated glycol , which contains inhibitors to prevent recommends cleaning the boiler system with cleaning products the glycol from attacking the metallic system components.
Page 18 External LWCO adequately sized air removal devices, located throughout the heating system. The Navien NCB-E boiler has a built-in air vent on top Note of the internal circulator to efficiently remove the air in the space heating system.
Page 19 Connect an air separator to the expansion tank only if the air professional. separator is located on the suction side of the system circulator. Navien NCB-E boiler is equipped with an auto-feeding water The pressure relief valve must be installed vertically to the connection and motorized feeding valve. Therefore, installation...
Page 20: Installing A Domestic Hot Water (Dhw) System
Ensure that the valve’s discharge capacity is equal to or greater than the maximum pressure rating of the boiler’s space heating The Navien NCB-E boiler provides domestic hot water continuously system. when flow is sensed by the flow sensor. This method is the most...
Page 21 Maximum Allowable Level 6.5 to 8.5 A flow restrictor is used to avoid excessive flow at the faucets. The Navien NCB-E boiler has a built-in flow restrictor at the cold water Sulfate Up to 205 mg/l inlet adapter to limit the overall flow of domestic hot water. Follow...
Page 22 150 psi pressure relief valve on 1. Locate the cold water inlet adapter on the bottom of the unit. the hot water outlet. The Navien NCB-E boiler has a built-in high temperature shut off switch, so install a “pressure only“ relief valve.
Page 23: Connecting The Condensate Drain
Do not plug the relief valve. 3.3 Connecting the Condensate Drain The Navien NCB-E boiler creates condensation when it operates. 3.2.3 DHW System Piping This condensation has an acidic pH of 3-5. Follow all local codes and regulations when disposing of condensate from the boiler.
Page 24 Before connecting the condensate drain, choose one of the To connect the condensate drain: following disposal options: 1. Connect a drain line to the in fitting at the bottom of the boiler. Use only corrosion-resistant material for the drain line, such as PVC or CPVC.
Page 25 Do not connect more than one appliance to the neutralizer. If option 'b' is selected for condensate disposal, the Navien condensate neutralizer kit is recommended. The condensate from the appliance flows through the neutralizing media and increases the pH of the condensate.
Page 26: System Fill Connection
Maintenance 3.4.1 Built-in Water Fill Connection Navien NCB-E boiler is equipped with an auto-feeding water Periodically monitor the level of media in the neutralizer and test connection and motorized feeding valve. Therefore, installation the pH level at the outlet. We recommend an annual pH test using...
Page 27: Testing The Water System
Follow the Read and follow the guidelines listed below when installing system piping for the Navien NCB-E boiler: instructions below to perform a fill test on the water system. System application drawings are intended to explain the system 1.
Page 28 Common Thermostat Air Handler Interface The Navien NCB-E boiler can control the operation of an air handler when a thermostat is used in combination with the air handling unit. The Air Handler Interface is designed to stop air handler operation when the boiler’s space heating function is not operating due to DHW supply demands, boiler errors, or low water conditions.
Page 29 3.6.2 System Application - Zone System with Zone Valves System application drawings are intended Additional Zone Note to explain the system piping concept only. Refer to 3.4 System Fill Connection on page 26 for make-up fill connections Zone #2 and refer to the requirements of your local codes to ensure compliance.
Page 30 3.6.3 System Application - Zone System with Circulators System application drawings are intended Additional Zone Note to explain the system piping concept only. Refer to 3.4 System Fill Connection on page 26 for make-up fill connections Zone #2 and refer to the requirements of your local codes to ensure compliance.
Page 31 3.6.4 System Application - Air Handler System System application drawings are intended Note to explain the system piping concept only. Refer to 3.4 System Fill Connection on page 26 for make-up fill connections and refer to the requirements of your local codes to ensure compliance.
Page 32: Installing A Cascading System
You can connect up to 15 water heaters to one NCB-E boiler to meet high-volume hot water demands by using Navien Ready-Link communication cables and following the set-up procedures in this section; additional controllers are not necessary.
Page 33: Connecting The Communication Cables
4.1.1 Piping Sizes and Considerations 4.2 Connecting the Communication Cables You can connect one NCB-E boiler with up to 15 Navien water When plumbing a cascading system, consider the following pipe diameters and flow rates. Note that flow rates above 6.6 ft/s may heaters, using the Ready-Link communication cables.
Page 34 4.3.2 Cascade System Settings To add additional slaves at a later time, repeat Note step 2. To configure the cascade communication settings: Cascade communication setup must be completed within 1 hour. Otherwise, all units will return to the 1. On the master NCB-E boiler, press and hold the Diagnostic normal operation mode and the cascade mode will and Up(+) buttons for more than 5 seconds.
Page 35: Connecting The Gas Supply
6. Connect the gas supply line. This boiler cannot be converted from natural gas to propane or vice versa without a Navien gas conversion kit. Do not 7. Test the supply line, all connection points, and the boiler for attempt a field conversion of this boiler without a Navien gas gas leaks.
Page 36 Gas Pipe has no crimps or tight bends in it, as this will restrict gas flow. When using rigid pipe, Navien recommends the installation of a union on the gas supply line close to the boiler, to facilitate any future maintenance or service.
Page 37: Gas Pipe Sizing Tables
5.1 Gas Pipe Sizing Tables The following tables are referenced from 2012 National Fuel Gas Code for reference only. Please consult the gas pipe manufacturer for actual pipe capacities. Maximum Natural Gas Delivery Capacity ) per Hour (0.60 Specific Gravity; 0.5 in WC Pressure Drop). Contact your gas supplier for BTU/ft in Cubic Feet (ft ratings.
Page 38: Measuring The Inlet Gas Pressure
Maximum Liquefied Propane Delivery Capacity in Thousands of BTU/H (0.5 in WC Pressure Drop) Length (including fittings) Pipe Size 10 ft 20 ft 30 ft 40 ft 50 ft 60 ft 80 ft 100 ft 125 ft 150 ft 175 ft 200 ft 250 ft (3 m)
Page 39 To measure the inlet gas pressure: 5. Loosen the screws indicated in the figure below and connect a manometer to the pressure port. Reset the manometer to zero 1. Shut off the manual gas valve on the gas supply line. before use.
Page 40: Venting The Boiler
For best results, keep the venting system as short and straight as possible. Navien also recommends installing a new vent system with this Locate the boiler as close as possible to the vent termination. appliance. If reusing an existing vent system, thoroughly inspect...
Page 41 Description Canadian Direct Vent Installations US Direct Vent Installations Clearance above grade, veranda, porch, deck, or balcony 12 in (30 cm) 12 in (30 cm) 36 in (91 cm) Clearance to window or door that may be opened 12 in (30 cm) Clearance to permanently closed window Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 ft (61 cm) from...
Page 42 30 in will not be covered by the Navien warranty. If there is any question 120 in 10 in (W) x...
Page 43 Canadian Non-Direct Vent US Non-Direct Vent Description Installations Installations Clearance above grade, veranda, porch, deck, or balcony 12 in (30 cm) 12 in (30 cm) 48 in (120 cm) below or to side 36 in (91 cm) Clearance to window or door that may be opened of opening;...
Page 44: Selecting Vent Pipe Materials
6.2 Selecting Vent Pipe Materials CAUTION Venting requirements differ in the US and Canada. Consult the following chart or the most recent edition of ANSI Z223.1/NFPA This boiler has a built-in control to limit the exhaust 54 or CAN/CGA B149.1, as well as all applicable local codes and temperature to 149°F (65°C).
Page 45: Measuring Vent Length
6.3 Measuring Vent Length 6.4 Terminating the Vent The maximum vent length when using 2 in exhaust ducts is 60 ft Before installing the boiler, determine what type of vent (18 m). The maximum vent length when using 3 in vent ducts termination is appropriate for the installation location and situation.
Page 46 Non-concentric Sidewall Venting – Air is drawn from a different Indoor Boiler Installation Venting Examples location that is at least 12 in (300 mm) away from the exhaust The following are some possible indoor venting options: termination. Try to minimize the length of the intake air pipe with this venting.
Page 47 2 in or 3 in Two-pipe Vertical Venting – Intake and exhaust pipes do not have to terminate in the same area. 36" (900mm) min. Exhaust Gas Intake Air 12” (300 mm) min From any obstruction (above, below, left, or right) Concentric Roof Venting Vent Combustion Air...
Page 48: Setting The Dip Switches
7. Setting the DIP Switches 7.1 PCB DIP Switches CAUTION Dip Switch 2 (Set of 8) Do not remove the front cover unless the power to the boiler is turned off or disconnected. Failure to do so may The DIP SW 2 on the circuit board configures additional features at result in electric shock.
Page 49: Front Panel Dip Switches
7.2 Front Panel Dip Switches Dip Switch 2 (Set of 2) The DIP SW 2 on the front panel configures the cascade vent and Dip Switch 1 (Set of 10) gas type settings. Before changing the settings, lift the rubber cover to access the The DIP SW 1 on the front panel configures the temperature unit, front panel DIP switches.
Page 50: Connecting The Power Supply
Do not connect the boiler to a 220-240V AC power supply. Doing so will damage the boiler and void the warranty. All the Navien NCB-E boilers come with a factory-installed, 3-pronged (grounded) plug. The boiler can be plugged into any grounded electrical outlet nearby, as it requires only 2 Amps.
Page 51: Installation Check List
To troubleshoot any operational problems refer to “Troubleshooting” in the Owner’s Manual. If you have additional questions or need assistance with installation, contact Technical Support at 1-800-519-8794 or 1-949-420-0420, or refer to the technical support section of Navien’s website (www.navien.com). Installing the boiler...
Page 52 Connecting the Space Heating Piping Has the system been filled (less than 30 psi) and purged of air? Does the piping incorporate means for air removal (scoop, separator, etc.)? Is there an expansion tank installed and set to the proper system pressure? If antifreeze has been used, is it the proper type and is the concentration appropriate? If an external low water cut off (LWCO) is installed, is it wired to the boiler? Connecting a Pressure Relief Valve...
Page 53 Connecting the Power Supply Is the supplied voltage 110-120V AC? Is the boiler plugged into a properly grounded outlet? If you have made a direct power supply connection, have you installed a power switch to facilitate end-user maintenance? Have you checked the polarity of the electrical connection? Is the system properly set up for cascading operation (master and slave boilers), if applicable? PCB DIP switch setting (DIP SW 2, set of 8) Is switch #1 set correctly for Return Water Control (ON) or Supply Water Control (OFF)?
Page 54: Operating The Boiler
10. Operating the Boiler 2. Press the + (Up) or – (Down) buttons until the desired 10.1 Turning the Boiler On or Off temperature appears on the display. To turn the boiler on or off, press the Power button for 0.3 seconds. MODE MODE You can adjust the temperature while the display is flashing.
Page 55: Viewing Basic Information
10.2.2 Adjusting the DHW Temperature 10.3 Viewing Basic Information To view information about the boiler, press the Mode button three times. “INFO” will appear on the display. WARNING Before adjusting the water temperature, read “To prevent burns:” on page 6 carefully. Water above 120°F (52°C) can cause instant scalding, severe burns, or death.
Page 56: Setting The Operation Mode
2. Press the + (Up) button two times to change the display to Display Description “3.OPR”. 3. Press the Mode Button once to access the Operation Mode Outdoor air temperature (°F) (with optional Outdoor Temperature menu. Sensor only) 4. Press the + (Up) button once to set the boiler to operate at 1-stage MIN (“MIN.1”).
Page 57 3. Press the Mode button and enter your 4-digit password. Use This mode is used to configure the Outdoor Reset Control mode. the + or – buttons to increase or decrease numbers and the This mode is disabled by default from the factory. Diagnostic button to move between digits.
Page 58 Types of Heat Load Outdoor Low Temperature Setting Range Supply Set- Return Set- Range Remarks Heat Load Remarks point Range point Range -4°F (-20°C) ~ [Outdoor High Temperature Set-point - 9°F 1. Finned Tube 120-180°F 101-147°F Default: 14°F (-10°C) Default Baseboard (48.5-82°C) (38-63.5°C)
Page 59 Setting the Pump Freeze Protection Temperature Setting the Boost Interval Time Display Description Display Description Pump freeze protection temperature Boost interval time (min) (°F) This menu is used to configure the circulation pump freeze The boost interval time may be set to prevent interruption in protection temperature.
Page 60 Setting the Pump Overrun Time When a call for space heating occurs simultaneously Note with a DHW demand, the 3-way valve will immediately switch to space heating mode at the end Display Description of the DHW demand. Pump overrun time (min) Setting the Burner-Off Temperature Display Description...
Page 61 Setting the Supply Absolute MAX Temperature Setting the Return Absolute MAX Temperature Display Description Display Description Supply absolute MAX set point (°F) Return absolute MAX set point (°F) This menu may be used to make changes to the maximum supply This menu may be used to make changes to the maximum return temperature range when the Supply Control mode is in use.
Page 62 T/T zone controller connection (Off) Default: 12 PSI Setting Range: 12-30 PSI This menu may be used to allow the boiler to work with a Navien Setting the Initial Start-up Number SmartZone+ controller connected via a Ready-Link cable. Default: Off...
Page 63: Resetting The Boiler
Setting a New Password 10.6 Resetting the Boiler If an error message appears, you can try resetting the boiler to Display Description resolve the problem. To reset the boiler, press the Reset button. Change password MODE This menu may be used to set a new password to access the parameter setting menu.
Page 64: Appendixes
Ø4.10 Ø4.50 NCB-180E Ø4.80 Ø5.95 Ø3.80 Ø4.70 This conversion kit shall be installed by a qualified service agency* in accordance with Navien’s instructions and all NCB-210E Ø6.10 Ø6.30 Ø4.50 Ø4.80 applicable codes and requirements of the authority having NCB-240E jurisdiction. The information in these instructions must be Ø6.10...
Page 65 6. Loosen the three screws indicated in the figure. 8. With the internal components exposed, locate the gas inlet pipe and the gas valve in the middle of the unit, as shown in Figure 2. Gas Inlet Pipe Gas Valve Figure 2.
Page 66 Figure 5. Exploded View of Gas Pipe Assembly Navien NCB-E boilers are shipped ready to fire natural gas ONLY. DANGER See Figure 5. Inspect the O-ring between the gas valve and gas valve inlet adapter whenever they are disassembled.
Page 67 16. Set the front panel Dip Switch to change the gas type. For LP, set Dip Switch 2 #2 to On. For NG, set DIP SW2 #2 to Off. WARNING Ensure that you have turned off the power to the boiler before accessing the DIP switches.
Page 68 Figure 7. Insert the Analyzer High fire Low fire Model Fuel Figure 8. Set Screw Location NCB-150E The set screw is located behind the screw-on Note 10.2 10.8 cover. This must be removed first. d. Fully open several hot water fixtures and set the boiler to NCB-180E operate at 2-stage D.
Page 69 The set screw is located behind the screw-on Note cover. This must be removed first. NAC-N5 -0.04 in ±0.01 in NCB-150E d. At high fire, do not check the offset value and never adjust NAC-L5 -0.03 in ±0.01 in the gas valve.
Page 70: Wiring Diagram
11.2 Wiring Diagram Appendixes...
Page 71: Ladder Diagram
11.3 Ladder Diagram NEUTRAL EXT_PUMP Relay 1 FILTER Relay 2 VENTURI Relay 3 IGNITER Relay PUMP Relay 5 3 WAY Primary SMPS Speed Control DC15V Secondary DC24V DC12V 24V OUTPUT DC5V Auto Water 220V Supplement Flame Rod Flow Sensor H.T.L Hall Sensor DHW Inlet WD-PSS...
Page 72: Component Assembly Diagrams And Parts Lists
11.4 Component Assembly Diagrams and Parts Lists 11.4.1 Case Assembly Appendixes...
Page 73 Description Part # Remark Intake Air Duct Assembly 30008662B Exhaust Pipe Assembly 30008673A 20033278A Case Intake Air Filter 20007668A Air Pressure Sensor 30010346A 30012262A 30012269A Front Panel 30012276B Cover Appendixes...
Page 74 11.4.2 Burner Assembly Appendixes...
Page 75 Description Part # Remark 30008825A Damper 20003019A O-Ring (G50) 20022095A Fan Bracket Siphon 30012280A 20030283A NCB-150E Burner Chamber Ass'y 30010353A NCB-180E 30008440A NCB-210E/240E 30010455A Ignition Transformer 20027105A NCB-150E 20021677A NCB-180E Burner Packing 20021672A NCB-210E/240E 30014697A NCB-150E 30012322A NCB-180E Heat Exchanger Ass'y...
Page 76 11.4.3 Waterway Assembly 35 16 Description Part # Remark 30015581A NCB-150E 30008181A NCB-180E DHW Heat Exchanger 30005017A NCB-210E/240E 20007858A Fastener 20006954A O-Ring (P18) 30012328A DHW Outlet Elbow 20006852A Packing Appendixes...
Page 77 Description Part # Remark 30008366A Thermistor DHW Outlet Adaptor 30003747A DHW Flow Sensor 30012033A 20006952A O-Ring (P14) 30015582A NCB-150E 30010315A NCB-180E DHW Cold Water Adaptor 30010316A NCB-210E 30010317A NCB-240E 20017212A O-Ring (P20) 30007878A DHW Cold Water Filter 30014737A Vent Pipe...
Page 78 11.4.4 Fan (Gas) Assembly Appendixes...
Page 79 20023861A NCB-180E 20019141A NCB-210E/240E 20022660A NCB-180E Venturi Packing 20033737A NCB-150E 20024159A NCB-180E (NG) 20019144B NCB-210E/240E (NG) Gas Orifice 20034176A NCB-150E (LP) 20024190A NCB-180E (LP) 20024189A NCB-210E/240E (LP) 20019090A O-Ring (P34) Gas Adapter 30008431A 20006934A O-Ring (P20) 30014321A NCB-150E 30012338A NCB-180E...
Page 80: Outdoor Temperature Sensor (Optional)
Outdoor High MIN Low MIN °F °C Absolute High Mass Radiant Low Mass Radiant Navien Outdoor Temperature Sensor Kit Cast Iron Baseboard Custom Radiator Outdoor Temperature Sensor Installation Guidelines Finned Tube Baseboard Avoid areas with temperature fluctuations by direct sunlight,...
Page 81 Outdoor Temperature Sensor Installation Guidelines Supply Set-point Return Set-point Heat Load Range Range Finned Tube 120-180°F 101-147°F Baseboard (default) (48.5-82°C) (38-63.5°C) 140-180°F 116-147°F Fan Coil (60-82°C) (46.5-63.5°C) 100-170°F Cast Iron Baseboard 86-139°F (30-59°C) (37.5-76.5°C) 80-140°F 70-116°F Low Mass Radiant (26.5-60°C) (21-46.5°C) 80-120°F High Mass Radiant...
Page 82 Memo...
Page 83 Getting Service If your boiler requires service, you have several options for getting service: Contact Technical Support at 1-800-519-8794 or on the website: www.navien.com. For warranty service, always contact Technical Support first. Contact the technician or professional who installed your boiler.

This manual is also suitable for:

Ncb-180e Ncb-210e Ncb-240e Ncb-e series Ncb-e

Navien NCB-150E Installation & Operation Manual

Safety Information

1 About the Boiler

2 Installing the Boiler

3 Installing the System Piping

4 Installing a Cascading System

5 Connecting the Gas Supply

6 Venting the Boiler

7 Setting the DIP Switches

8 Connecting the Power Supply

9 Installation Check List

10 Operating the Boiler

11 Appendixes