Navien CH-180 Installation Manual
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Navien CH-180 Installation Manual

Navien CH-180 Installation Manual

Gas combination water heater / heating boiler
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  • Page 2: Table Of Contents

    Installation Manual - Contents Accessories Included with the Combination Water Heater / Heating Boiler Optional Accessories Specifications Components & Dimensions Key Components Dimensions Warnings Installation Warning Rating Plate Getting Started Check Rating Plate Location Selection Locating the Combination Water Heater / Heating Boiler Mounting the Unit to the Wall Plumbing Plumbing and Water Connection Guideline...
  • Page 3 Accessories: Included with the Combination Water Heater / Heating Boiler: Description Item Navien Condensing Combination Water Heater / Heating Boiler Remote Controller Owner’s and Installation Manual Wall Mounting Bracket Condensate Drain Hose Tapping Screws & Anchors Vent terminators Wall Flanges...

  • Page 5: Specifications

    Specifications: Item CH-180 CH-210 CH-240 Min: 17,000 Btuh Min: 20,000 Btuh Min: 20,000 Btuh Heat Capacity (Input) Natural Gas Max: 150,000 Btuh Max: 175,000 Btuh Max: 199,000 Btuh 35°F Rise 8.3 GPM 10.0 GPM 11.0 GPM Flow Rate (DHW) 45°F Rise 6.5 GPM...

  • Page 6: Key Components

    Key Components: CH NAVIEN Combination Water Heater / Heating Boiler Description Navien Part No. Description Navien Part No. Intake Air Duct BH2505400B DHW Flow Sensor AASS9EXFS002A Fan Motor NAFA9GSFB002 Syphon BH2501442C BH2507535A Transformer BH1205011C DHW Heat Exchanger PAS40KHE_003 Gas Pressure Sensor...

  • Page 7: Dimensions

    Dimensions: CH Models Description Diameter 3" Exhaust Pipe 3" Intake Air Duct Space Heating 1" Supply Connection Space Heating 1" Return Connection DHW Supply 3/4" Connection DHW Cold Water 3/4" Inlet Connection Auto Feeder 1/2" Connection Gas Inlet 3/4" Connection...

  • Page 8: Installation Warnings

    The appliance should be located in an area where leakage within the unit or at its connections will not result in damage to the surrounding area. Navien will not be responsible for any damage resulting from leaking if adequate drainage is not provided.
  • Page 9 Installation Warnings: Protect against snow accumulation around the vent terminations. Ensure the exhaust pipe and the intake air pipe remain clear from obstructions at all times. DO NOT overtighten fittings as pipe and/or fitting damage may occur causing leakage. DO NOT install the combination Water Heater / Heating Boiler where subject to vibrations. The vent for this appliance shall not terminate over public walkways, or near soffit vents, crawl space vents and other areas where condensate or vapor could create a nuisance, hazard or cause property damage.

  • Page 10: Getting Started

    Getting Started: Navien units come from the factory configured for use with either Liquid Propane (LP) or Natural Gas (NG). Before starting the installation, check the rating plate (side of unit) of the combination Water Heater / Heating Boiler to ensure the unit matches gas type, gas pressure, water pressure and electrical supply.
  • Page 11 AC *c.a. 120 Volts 60Hz Use less than 2 Amp, *Utilise moins de 2A 150 Psi *lb/po2 ANSI Z21. 10. 3b – CSA 4.3B-2004, Z21.13 – CSA 4.9 DO NOT install the Navien Combination Water Heater / Heating Boiler in areas with excessive high humidity:...

  • Page 12: Heating Boiler

    Locate the Navien Combination Water Heater / Heating Boiler close to a drain where condensed water and possible water leakage will not do damage to surrounding areas.
  • Page 13 Mounting the Unit to the Wall: All Navien units come with an upper mounting bracket pre-drilled at 16" on center for easy installation on standard stud walls. Affix the bracket to the wall securely, ensuring that it is level and that it can support the weight of the combination Water Heater / Heating Boiler.
  • Page 15 Check local code if a Low Water Cut Off is requred. If so, determine if this device meets the requirements of the local codes. If a separate LWCO device is required by certain local jurisdications or when the Navien Combination Water Heater / Heating Boiler is installed above the system piping, the folloing...
  • Page 16 Plumbing: Expansion Tank 20 ~ 25 Do not install automatic air vents on a closed-type expansion tank system. Air must remain in the system and be returned to the expansion tank to provide an air cushion.
  • Page 24 Plumbing: E. Hydro - Seperator System Legend Expansion Tank Air Seperator Hydronic Sepertor Circulation Pump Manual Valve Regulator Backflow Preventer Zone Valve In-floor Heating Hydro Tee Water Supplement DHW Cold Water Inlet DHW Supply...

  • Page 29: Gas Piping

    Use the charts on the following pages to properly size the gas supply line. The gas connection fitting on all Navien units is 3/4". DO NOT use less than 3/4" piping. When using flexible gas line, ensure the pipe’s inner diameter is sufficient to supply the required BTUs, also ensure that the flexible line has no crimps or tight bends as this will restrict gas flow.
  • Page 30 Until pressure testing of the main gas supply line is completed, ensure the gas line to the Navien Combination Water Heater / Heating Boiler is disconnected to avoid any damage to the Water Heater / Heating Boiler.
  • Page 31 Gas Pipe Sizing Chart: Referenced from Uniform Plumbing Code 1997 Maximum Natural Gas Delivery Capacity in Cubic Feet (ft ) per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop) Length in Feet Pipe Size 100' 125' 3/4" 1" 1,404 1 1/4" 2,103 1,445 1,161...
  • Page 32 Electric Main Gas Valve Fuel Gas Supply The Navien Combination Water Heater / Heating Boiler cannot operate properly without sufficient inlet gas pressure and volume. Below are instructions on how to check the inlet gas pressure. CAUTION THIS IS ONLY TO BE DONE BY A LICENSED PROFESSIONAL Procedure to measure the inlet gas pressure: 1.
  • Page 33 Water Heater / Heating Boiler up to its maximum burn. 7. When the Navien Water Heater / Heating Boiler is at maximum burn, check the inlet gas pressure reading on the manometer, it should read between 3.75"and 10.5"WC for Natural Gas / 10.5"...
  • Page 34 Code in Canada and in accordance with all applicable local building codes. This Navien Combination Water Heater / Heating Boiler can be vented with (PVC) plas- tic. PVC Vent can be used in all cases up to Exhaust flue gas temperature 149°F(65°C).
  • Page 35 - Be installed so as to prevent accumulation of condensate; and - Where necessary, have means provided for drainage of condensate. All Navien Combination Water Heater / Heating Boilers are prepared at the factory to be direct vent (sealed combustion) units which draw all of their required combustible air directly from outside the building.
  • Page 36 When a Navien Combination Water Heater / Heating Boiler is installed without a dedicated intake air pipe (non-Direct Vent) communicating directly with the outdoors, combustion air must be supplied to the space. The opening sizes below are Navien’s minimum requirements. Follow the latest version of the National Fuel Gas Code (ANSI Z223.1 / NFPA 54) or CAN/CGA B-149.1.

  • Page 38: Venting Clearances

    Venting Clearances: All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 / NFPA 54 and CGA B149.1 Natural Gas and Propane Installation Code. ANSI Z233.1 / NFPA 54 and CGA B149.1 Natural Gas and Propane Installation Code. US Direct Vent Canada Direct Vent Clearance To:...

  • Page 39: Allowable 2" Venting

    Venting: Allowable 3" Vent Lengths MAX # of MODEL EQUIVALENT LENGTHS LENGTH ELBOWS Reduce the maximum vent length 100' accordingly for each elbow used: 100' Each 90˚ elbow equates to 5 linear feet of vent. 100' Each 45˚ elbow equates to 2 linear feet of vent. NOTE: The maximum lengths listed above are for the exhaust pipe section only.

  • Page 40: Vent Configuration Options

    Venting Any improper operatino of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natrual Gas and Propane Installation Code, 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 11 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code.
  • Page 41 Venting: Option #3: 3" 2-Pipe Vertical Vent Termination Exhaust 12" minimum from any obstruction (adove, below, left or right) Intake 12" Min...
  • Page 42 Venting: CONCENTRIC VENT TERMINATION 1. Sidewall Installation 2. Roof Installation...

  • Page 43: Outdoor Venting

    Venting Clearance When Navien Combination Water Heater / Boiler is installed outdoor, Water Heater / Heating Boiler installed location should be in open unroofed area with following clearance table below.
  • Page 44 Read all safety warnings in the “User’s Operation Manual”. The additional safety issues outlined below must also be followed completely when installing this Navien Combination Water Heater / Heating Boiler: Follow all local codes and/or the most recent edition of the National Fuel Gas Code (ANSI Z223.1/NFPA 54) in the USA or the Natural Gas and Propane...

  • Page 45: Pressure Reducing Valve

    Pressure Reducing Valve Please do not deliberately remove the O-Ring installed the body of the Water Pressure Reducing valve. Please refer to the graph and change the Water Pressure Reducing valve based on installation circumstance. 1. Included Accessories Part Figure Q’ty Water Pressure Reducing Valve Release Kit...

  • Page 46: Installation Example

    Pressure Reducing Valve 3. Installation Example The reducing valve’s water flow is 4.9 GPM with inlet water pressure is 56 PSI, at the time of factory shipping. If more water flow, 5.7 GPM is needed with inlet water pressure is 56 PSI, please change the reducing valve installed Red O-Ring among the enclosed reducing valve.
  • Page 47 Outdoor Temperature Sensor (Optional): Outdoor Temperature Sensor Installation Pull the terminal block out Attach the body to the wall with screws/anchors provided Run wire into the body through grommet opening Connect wires to the terminal block Reinstall the terminal block into the Attach the cap to the body Attach the cap to the body Outdoor Temperature Sensor Installation Guidelines Avoid areas with temperature fluctuations caused by direct sunlight, and not...
  • Page 48 Outdoor Temperature Sensor (Optional): K-Factor (Supply Temperature Setting) external temperature K-Factor (Return Temperature Setting) Return K-Factor EXternal temperature [ Dip Switch #4 of 8 on]...

  • Page 49: Electrical Connections

    If the local jurisdiction requires the unit to be wired directly, remove and discard the factory installed plug. An ON/OFF switch controlling the main power between the breaker and the Navien Water Heater / Heating Boiler should be provided to facilitate end-user maintenance and servicing.

  • Page 50: Remote Controller Installation

    Remote Controller Installation: Remote Controller NR-10PU The following are considerations for determining the location of the remote controller: Disconnect the power to the combination Water Heater / Heating Boiler before installing the remote controller. The wire on the reserve of a remote contoller is connected to the orange wire on the PCB board which is located on bottom of the combination Water Heater / Heating Boiler.
  • Page 51 Hot water temperatures over 125°F can cause severe burns instantly or death from scalding. With the Navien Combination Water Heater / Heating Boilers, the temperature has been preset at the factory to 120°F (49°C) (Only DHW mode). The PCB board will electronically control this temperature.
  • Page 52 Only 1 Combination Water Heater / Heating Boiler can be installed in a cascade system and it must be the master. The slave units can only be Navien NR-(A) or NP-(A) Water Heater / Heating Boilers. The maximum number of units per cascade is 16, supplying as much hot water as needed.
  • Page 53 2. Step 2: Cable connection and DIP switch change A multiple unit, which is composed of 1 combination Water Heater / Heating Boiler and up to 15 Water Heater can be connected by using Naviens’ Multi-Link communication cables inside. The combination Water Heater / Heating Boiler shall be set as a master unit, which can be done by switching the 1st switch of DIP SW2 on.
  • Page 54 - The diagram above displays the master unit and slave unit connected with the ready link communication cable. Slave N Slave N-1 Slave N-2 Slave N-1 Master - The recommended location for the master unit is in the center. - The Dip SW7, which is used only for organizing cascade system. Be switches ON if the corresponding unit is the first or the last unit of Cascade connection.
  • Page 55 FND1 of the slave 1 unit will read “S001”. Slave 2 unit also can be set-up as above. After the slave set-up, each FND1 will read as below: 3.3 Set-up finish After the slave set-up, push and hold the Tack SW3 and Tack SW4 of the master unit simultaneously for 3 seconds.
  • Page 56 5.2 Slave unit set-up This procedure is same as the 3.2 Slave set-up of Step 3: Communication set-up. After the slave set-up, each FND1 will display on the PCB as below: 5.3 Set-up finish After the slave set-up, DIP SW1 and DIP SW2 should be set to the original position and push and hold the Tack SW3 and Tack SW4 of the master unit simultaneously for 3 seconds.

  • Page 57: Dip Switch Settings

    Combination Water Heater / Heating Boiler DIP Switch Settings: There are two sets of DIP switches; one set has 6 switches and the other has 8 switches. Set of Dip Switch #1. (6 Switches): Operation Select 1 (1) Operation Mode Select Operation Select 2 Gas Type Select Liquid Propane...
  • Page 58 #5 & 6: Model Selection Model CH-180 CH-210 CH-240 Set of 8 Switches: Operation Mode Selection Ready-Link Ready-Link Normal System Multi-System Select Multi-System Master Using Depends on the timer setting Remote Hot Water of Remote Controller Controller Pre-heating Non-Using Using Hot Water...
  • Page 59 #4 & 5& 6 (Space Heating Used Only): Supply / Return Temperature Selection 120˚F (49˚C) 140˚F (60˚C) (Supply) 160˚F (71˚C) 180˚F (82˚C) 95˚F(35˚C) 110˚F (43˚C) (Return) 125˚F (51˚C) 140˚F (60˚C) #7 & 8 (DHW Used Only): Hot Water Temperature Selection 110˚F (43˚C) 120˚F (49˚C) 130˚F (54˚C)

  • Page 60: Installation Checklist

    Installation Checklist: Selecting the location and installing the combination Water Heater / Heating Boiler: Are the proper clearances from windows, doors and other intake vents maintained? Is the distance between the combination Water Heater / Heating Boiler and point of vent termination minimized? Is distance between combination Water Heater / Heating Boiler and major fixtures within the house minimized? Are the proper service clearances maintained?

  • Page 61: Pressure Relief Valve

    Pressure Relief Valve Is there an approved pressure relief valve installed on the hot water outlet and space heating outlet? Does the rating plate on the pressure relief valve indicate a BTU level equal to the maximum BTU rating of the combination Water Heater / Heating Boiler? Is the pressure relief valve 3/4"...
  • Page 62 Has the combination Water Heater / Heating Boiler been vented with 3" ABS (except cellular core ABS), 3" PVC, Navien’s 4" Stainless Steel Concentric Vent kit or Type BH Special Gas Vent (S636 PVC or stainless steel) for Category IV...

  • Page 63: Dip Switch Setting

    DIP Switch Settings: For the set of 6 DIP switches: Are switch #1 and #2 in the down (OFF) position? Is switch #3 properly set for the gas supply type? Is switch #4 properly set for the cacade vent type? (Individual vent or common vent) Are switch #5 and #6 set for the proper model number? For the set of 8 DIP switches:...

  • Page 64: Maintenance

    (as applicable) Every 6 months, pull off condensate hose and ensure no debris is in the hose. • If you suspect the burners need cleaning, call a Navien-approved technician. Do not open the burner compartment. • Peridoic visual check of burner flames through burner window. You should see 1/2”~ 3/4”...

  • Page 65: Completing The Install

    For any troubleshooting issue, see the “Error Codes” section of the operating manual. For any questions or problems during the installation, contact Navien’s technical department toll-free at 1-800-519- 8794 (949-420-0420) or visit the technical support section of the website...

  • Page 66: Wiring Diagram

    Wiring Diagram: If any of the original wire as supplied with the combination Water Heater / Heating Boiler must be replaced, it must be replaced with its equivalent.

  • Page 67: Ladder Diagram

    Ladder Diagram: NEUTRAL Relay 1 Power Supply 120VAC Relay 2 Relay 3 SGV1 Power Switch Relay 4 SGV2 Relay 5 Mode Selecttion lagniter Relay 6 Pump Relay 7 Relay 8 Transformer Primary 3-Way V/V Relay 9 Relay 10 External Power Secondary 150VAC 15VDC...

  • Page 68: Combination Water Heater / Heating Boiler

    Make sure the circuit breaker on the distribution panel is OFF or ON/OFF switch in the Navien Combination Water Heater / Heating Boiler is OFF. From the bottom of Navien combination combination Water Heater / Heating Boiler, connect the 120 VAC.
  • Page 69 In-Floor Radiant Heating System and Baseboard Heating System Room Thermostat (with Battery) Combination Water Heater A / H T / S AC 24V C o o l i n g H e a t i n g H e a t i n g C o o l i n g W R G Y GN RD WH...
  • Page 70 Components Diagram & Parts List: 1.1 Case Disassemble...

  • Page 71: Case Part List

    1-2. Case Part List Case BBK05011089 Cover BBR15012136 Emblem BH2603008A Case Upper Bracket BH2505277A Case Lower Bracket BBK05197001 Deco BH2602012A Pressure Indicator Intake Air Duct Ass’y BH2505400B Intake Air Duck Packing No.6 Ass’y Exhaust Pipe Ass’y BH2505401B Exhaust Pipe O-Ring No.7 Ass’y Exhaust Pipe Packing No.7 Ass’y...
  • Page 72 Components Diagram & Parts List: 2-1. Burner Disassemble 1 8-2 18 -4 18 -1 26-1 18 -3 34-1...
  • Page 73 2-2. Burner Part List Fan Motor NAFA9GSFB002 PH1603058D Flame rod ass’y PH1603059D Propane BH2501679A 18-1 Flame rod BH2501680A Propane 18-2 Flame rod packing A BH2505054A 18-3 Flame rod packing B BH2405051A 18-4 Flame rod bracket BH2505681A Air Pressure Sensor NASS9EX00009 PABNCN30KDBN_003 180 NG PABCR180ABN_002...
  • Page 74 BH2202023A Tube BH2202024A 210/240 Tube (550L) BH2203001A Tube BH2202036A 210/240 BH2202041A O-Ring BH2421008A Screw D4 x 8L BH1705007A Screw D4 x 6L BH1612004A Bolt D4 x 10L (STS) BH1611006A Screw D4 x 14L BH1701031A Screw D4 x 14L BH1708006A Bolt M4 x 12L (STS) BH1603007A Screw D4 x 25L BH1701030A...
  • Page 75 Components Diagram & Parts List: 3-1. Water Way Disassemble...
  • Page 76 3-2. Water Way Part List High Limit Switch BH1401022A High Limit Switch Bracket BH2501541A WPS Packing BH2406054A H/E Bracket R BH2501704B H/E Bracket L BH2501703B Inlet Water Filter BH1303013A BBM20341008 210/240 Heat Exchanger Ass’y BBM20341007 Exhaust Duct BH2544007D Exhaust Duct Packing BH2406050A Exhaust Limit Switch BH1401031A...
  • Page 77 S/H Strainer BH1301020C S/H Return Pipe BH2507550A S/H Pipe 2 BH2507372B S/H Pipe 1 BH2507373A Siphon BH2501442C Siphon Hose BH2204047A Water Pressure Sensor BH2507535A BH2501603A 210/240 Secondary H/E Inlet Adapter BH2501602A Circulation Pump NAPU9GLPCT10 Drain Coke BH2505314A BH2501447A Pump Bracket Pump Packing BH2406039A Fastener C...
  • Page 78 Memo...
  • Page 80 Version : 2.01(Dec. 20. 2010)

This manual is also suitable for:

Ch-210Ch-240

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