1. Manuals
  2. Brands
  3. Knight Manuals
  4. Boiler
  5. WBN051
  6. Installation & operation manual

Knight WBN051 Installation & Operation Manual

Wall mount boiler
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
WBII-I-O Rev J
Installation & Operation Manual
Models: 51 - 211
This manual must only be used by
WARNING
a qualified heating installer / service
technician. Read all instructions,
including this manual and the Knight
Wall Mount Service Manual, before
installing. Perform steps in the order
given. Failure to comply could result
in severe personal injury, death, or
substantial property damage.
Save this manual for future reference.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WBN051 and is the answer not in the manual?

Questions and answers

Related Manuals for Knight WBN051

Summary of Contents for Knight WBN051

  • Page 1 This manual must only be used by WARNING a qualified heating installer / service technician. Read all instructions, including this manual and the Knight Wall Mount Service Manual, before installing. Perform steps in the order given. Failure to comply could result in severe personal injury, death, or substantial property damage.

  • Page 2: Table Of Contents

    6. HYDRONIC PIPING PLEASE READ BEFORE PROCEEDING ......3 System Water Piping Methods ......... 35 THE KNIGHT WALL MOUNT BOILER -- HOW IT WORKS .. 4-5 Low Water Cutoff Device ..........35 RATINGS ................6 Chilled Water System ............35 1.

  • Page 3: Please Read Before Proceeding

    Please read before proceeding When servicing boiler – Installer – Read instructions, WARNING including this manual and the Knight • To avoid electric shock, disconnect electrical supply Wall Mount Service Manual, before before performing maintenance. installing. Perform steps in the order given.

  • Page 4: The Knight Wall Mount Boiler - How It Works

    Installation & Operation Manual The Knight Wall Mount Boiler - How it works... Stainless steel heat exchanger 15. Gas connection pipe Allows system water to flow through specially designed Threaded pipe connection of 1/2". This pipe should be coils for maximum heat transfer, while providing connected to the incoming gas supply for the purpose of protection against flue gas corrosion.
  • Page 5 Installation & Operation Manual The Knight Wall Mount Boiler - How it works... (continued) Models 51 - 211 FRONT OF UNIT Front View Bottom View Left Side (inside unit) Right Side (inside unit)

  • Page 6: Ratings

    95.7 Maximum allowed working pressure is located on the rating plate. NOTICE 7. The Knight Wall Mount boiler input rate, on some Notes: models, is reduced for vent lengths beyond the minimum. 1. As an Energy Star Partner, Lochinvar has determined that Models WB(N,L)081 and WB(N,L)106 with 2"...

  • Page 7: Determine Boiler Location

    A closet is any room the boiler is installed in which is less • Electrical power than 79 cubic feet for WBN051 through WBN106 models, 104 cubic feet for WBN151 models, and 125 cubic feet for Locate the appliance so that if water connections should WBN211 models.
  • Page 8 Installation & Operation Manual Determine boiler location Figure 1-1 Closet Installation - Minimum Required Clearances For closet installations, CPVC or WARNING LEFT 6" MINIMUM stainless steel vent material MUST 24" SERVICE BE used in a closet structure due to 0" MINIMUM elevated temperatures.

  • Page 9: Provide Air Openings To Room

    Ensure the wall for which the boiler is intended to be mounted is comprised of either, cement, brick, block, or Install air inlet piping for the Knight wall mount boiler as wooden studs spaced 16" apart from center. Ensure the described in this manual.

  • Page 10: Corrosive Contaminants And Sources

    Installation & Operation Manual Determine boiler location When using an existing vent system to Table 1A Corrosive Contaminants and Sources install a new boiler: Products to avoid: Failure to follow all instructions can result WARNING Spray cans containing chloro/fluorocarbons in flue gas spillage and carbon monoxide emissions, causing severe personal injury Permanent wave solutions or death.

  • Page 11: Removing A Boiler From Existing Common Vent

    Determine boiler location (continued) When removing a boiler from existing common vent system: Do not install the Knight wall mount g. Any improper operation of the common venting system DANGER should be corrected so the installation conforms with boiler into a common vent with any other the National Fuel Gas Code, ANSI Z223.1/NFPA 54...

  • Page 12: Prepare Boiler

    10. Reposition the gas valve against the venturi and replace the You must install the propane orifice to fire four (4) screws removed in Step 7, securing the valve to the the Knight wall mount boiler on propane. venturi (FIG. 2-3). Verify when installing that the orifice size 11.

  • Page 13: Mounting The Boiler

    See page 9 of this manual for boiler mounting location to lift. A minimum of two people is needed instructions. for mounting the boiler onto the bracket. The Knight Wall Mount boiler is not NOTICE intended for floor installation. Figure 2-4 Mounting the Boiler...

  • Page 14: General Venting

    Installation & Operation Manual General venting Direct venting options - Sidewall Vent Figure PVC/CPVC Concentric Sidewall Figure 3-1 Two-Pipe Sidewall Termination - See Termination - See page 26 for more details page 22 for more details Direct venting options - Vertical Vent Figure Two-Pipe Vertical...

  • Page 15: Install Vent And Combustion Air Piping

    (continued) Install vent and combustion air piping The Knight wall mount boiler must be The Knight wall mount boiler vent and air piping can be DANGER vented and supplied with combustion and installed through the roof or through a sidewall. Follow the ventilation air as described in this section.

  • Page 16: Requirements For Installation In Canada

    Concentric Vent) and the 2" and 3" Concentric Vent Kits The appliance output rating will reduce NOTICE available from IPEX are approved for use on the Knight by up to 1.5% for each 25 feet of vent wall mount boiler. Both kits are listed to the ULC-S636 length.

  • Page 17: Materials

    Installation & Operation Manual General venting (continued) Materials Air inlet pipe materials: The PVC, CPVC, or ABS air inlet pipe should be cleaned and The air inlet pipe(s) must be sealed. Choose acceptable combustion air inlet pipe materials from the following list: sealed with the pipe manufacturer’s recommended solvents and standard commercial pipe cement for the material used.

  • Page 18: Optional Room Air

    Commercial applications utilizing the Knight wall mount acids. The acid can eat through the boiler wall, causing serious boiler may be installed with a single pipe carrying the flue...

  • Page 19: Pvc/Cpvc

    Installation & Operation Manual General venting (continued) PVC/CPVC This product has been approved for use with the PVC/CPVC Examples: 1. Seven (7) feet vertical vent materials listed in Table 3D. 2. Connector + 90° elbow + 2 feet horizontal 3. One (1) foot vertical + 90° elbow + 1 foot Installing vent and air piping horizontal WARNING The vent connection to the appliance must...

  • Page 20: Polypropylene

    Installation & Operation Manual General venting Polypropylene Use only the adapters and vent system listed WARNING in Tables 3E and 3F. DO NOT mix vent This product has been approved for use with polypropylene systems of different types or manufacturers. vent with the manufacturers listed in Table 3E.

  • Page 21: Stainless Steel Vent

    Installation & Operation Manual General venting (continued) Stainless steel vent Installation of a stainless steel vent system NOTICE should adhere to the stainless steel vent This product has been approved for use with stainless steel manufacturer’s installation instructions using the manufacturers listed in Table 3G. supplied with the vent system.

  • Page 22: Sidewall Direct Venting

    Installation & Operation Manual Sidewall direct venting Vent/air termination – sidewall Figure 4-1A PVC/CPVC/Polypropylene Sidewall Termination of Air and Vent Follow instructions below when WARNING determining vent location to avoid TO BOILER INTAKE AIR possibility of severe personal injury, CONNECTION death, or substantial property damage.
  • Page 23 Installation & Operation Manual Sidewall direct venting (continued) Vent/air termination – sidewall Figure 4-2A Clearance to Gravity Air Inlets Figure 4-1C Alternate Venting Arrangement (if Space Allows) w/Field Supplied Fittings TO BOILER INTAKE AIR COUPLING 12" CONNECTION MIN. 12” MIN 15”...

  • Page 24: Prepare Wall Penetrations

    Installation & Operation Manual Sidewall direct venting Prepare wall penetrations Figure 4-4B Polypropylene Sidewall Termination Assembly Use the factory supplied wall plate as a template to locate SIDEWALL the vent and air intake holes and mounting holes. ADAPTER (AIR) WALL Air pipe penetration: PLATE Cut a hole for the air pipe.

  • Page 25: Multiple Vent/Air Terminations

    CSA B149.1 Installation Code. 3. The air inlet of a Knight wall mount boiler is part of a direct vent connection. It is not classified as a forced air intake with regard to spacing from adjacent boiler vents.

  • Page 26: Sidewall Termination - Optional Concentric Vent

    Installation & Operation Manual Sidewall direct venting Sidewall termination – optional concentric vent Description and usage Lochinvar offers optional concentric combustion air and vent Sidewall termination installation pipe termination kits (Factory Kit #CVK3003 - 3" or #CVK3008 - 2"). Both combustion air and vent pipes must attach to the 1.
  • Page 27 Installation & Operation Manual Sidewall direct venting (continued) Sidewall termination – optional concentric vent models Figure 4-8 Concentric Vent Dimensional Drawing Instead of cementing the smaller pipe to 5. Install the Y concentric fitting and pipe assembly through NOTICE the rain cap, a field-supplied stainless steel the structure’s hole.
  • Page 28 Installation & Operation Manual Sidewall direct venting Sidewall termination – optional concentric vent Figure 4-10 Concentric Vent Sidewall Attachment Multiventing sidewall terminations DO NOT use field-supplied couplings to CAUTION extend pipes. Airflow restriction will occur When two (2) or more direct vent appliances are vented near and may cause intermittent operation.

  • Page 29: Vertical Direct Venting

    Installation & Operation Manual Vertical direct venting Vent/air termination – vertical Follow instructions below when WARNING Figure 5-1A PVC/CPVC/Polypropylene Vertical determining vent location to avoid Termination of Air and Vent possibility of severe personal injury, death or substantial property damage. ALTERNATE INTAKE LOCATIONS: INTAKE PIPES MAY BE LOCATED Determine location...

  • Page 30: Prepare Roof Penetrations

    FIG. 5-2). For Canadian installations, provide clearances required by CSA B149.1 Installation Code. 3. The air inlet of a Knight wall mount boiler is part of a direct vent connection. It is not classified as a forced air intake with regard to spacing from adjacent boiler vents.

  • Page 31: Vertical Termination - Optional Concentric Vent

    Installation & Operation Manual Vertical direct venting (continued) Vertical termination – optional concentric vent Description and usage 2. Cut one (1) hole (5 inch diameter for #CVK3003 installations Lochinvar offers an optional concentric combustion air and or 4 inch diameter for #CVK3008 installations) into the vent pipe termination kit.
  • Page 32 Installation & Operation Manual Vertical direct venting Vertical termination – optional concentric vent DO NOT use field-supplied couplings to Do not operate the appliance with CAUTION WARNING extend pipes. Airflow restriction will occur. the rain cap removed or recirculation of combustion products may occur. 6.

  • Page 33: Alternate Vertical Concentric Venting

    Installation & Operation Manual Vertical direct venting (continued) Alternate vertical concentric venting This appliance may be installed with a concentric vent Figure 5-8 Concentric Vent Example 1 arrangement where the vent pipe is routed through an existing unused venting system; or by using the existing FLUE EXHAUST unused venting system as a chase for vent and combustion air routing.
  • Page 34 Installation & Operation Manual Vertical direct venting Existing vent as a chase Follow all existing termination and clearance requirements and allowable pipe lengths. Use only approved venting materials listed in the General Venting Section of this manual. Figure 5-10 Existing Vent as a Chase AIR INLET FLUE EXHAUST SEAL...

  • Page 35: Hydronic Piping

    Hydronic piping System water piping methods General piping information The Knight wall mount is designed to function in a closed Basic steps are listed below along with illustrations on the loop pressurized system not less than 12 psi. A temperature following pages (FIG.’s 6-3 through 6-10), which will guide...

  • Page 36: Near Boiler Piping Components

    13. Indirect water heaters: elbows, and 2 - fully ported ball valves. The Knight wall mount boiler may be piped to an indirect water heater to heat domestic hot water with the space heat Knight wall mount boilers are capable of controlling a transfer medium.

  • Page 37: Near Boiler Piping Connections

    Circulator sizing The Knight wall mount boiler heat exchanger does have a pressure drop, which must be considered in your system design. Refer to the graph in FIG. 6-2 for pressure drop through the Knight wall mount boiler heat exchanger.
  • Page 38 Installation & Operation Manual Hydronic piping Figure 6-2 Pressure Drop vs. Flow - Models 51 - 211 Table 6A Circulator Recommendations for Temperature Rise Applications_20°, 25°, and 35° 20°F Temperature Rise Applications Pump Minimum Pipe Model FT/HD Size Grundfos TACO B &...

  • Page 39: Variable Speed Pump Option

    SMART SYSTEM / Multi-temperature loop control option The Knight wall mount boiler is capable of producing up to three (3) set point temperatures to meet different space heating demands. When using more than one temperature demand it is necessary to protect the lower temperature loop from overheating.
  • Page 40 Installation & Operation Manual Hydronic piping Figure 6-3 Single Boiler - Single Temperature Zoned with Circulators ZONE #1 PRESSURE PRESSURE GAUGE REDUCING VALVE ZONE #2 ZONE #3 ZONE #4 BACKFLOW FLOW CHECK PREVENTER VALVE (TYPICAL) MAKE UP WATER SYSTEM SUPPLY ZONE CIRCULATORS SENSOR (TYPICAL)
  • Page 41 Installation & Operation Manual Hydronic piping (continued) Figure 6-4 Multiple Boilers - Single Temperature Zoned with Circulators Number of Units Model Required Pipe Sizes 1" 1-1/4" 1-1/2" 2" 2" 2" 2" 1-1/4" 1-1/2" 2" 2" 2-1/2" 2-1/2" 2-1/2" ZONE #1 1-1/2"...
  • Page 42 Installation & Operation Manual Hydronic piping Figure 6-5 Single Boiler - Multiple Temperatures PRESSURE TEMPERATURE TEMPERATURE TEMPERATURE REDUCING VALVE LOOP #1 LOOP #2 LOOP #3 BACKFLOW PREVENTER MIXING VALVES PRESSURE (TYPICAL) GAUGE MAKE WATER SYSTEM SUPPLY SENSOR AIR SEPARATOR WIRES EXPANSION TO LOOP TANK...
  • Page 43 Installation & Operation Manual Hydronic piping (continued) Figure 6-6 Multiple Boilers - Multiple Temperatures Number of Units Model Required Pipe Sizes 1" 1-1/4" 1-1/2" 2" 2" 2" 2" 1-1/4" 1-1/2" 2" 2" 2-1/2" 2-1/2" 2-1/2" 1-1/2" 2" 2" 2-1/2" 2-1/2" 2-1/2" 3"...
  • Page 44 Installation & Operation Manual Hydronic piping Figure 6-7 Multiple Boilers - Multiple Temperatures with DHW Piped as a Zone Number of Units Model Required Pipe Sizes 1" 1-1/4" 1-1/2" 2" 2" 2" 2" 1-1/4" 1-1/2" 2" 2" 2-1/2" 2-1/2" 2-1/2" 1-1/2"...
  • Page 45 Installation & Operation Manual Hydronic piping (continued) Figure 6-8 Single Boiler Zoned with Valves ZONE #1 PRESSURE PRESSURE REDUCING VALVE GAUGE ZONE #2 ZONE #3 ZONE #4 BACKFLOW PREVENTER ZONE VALVES (TYPICAL) MAKE UP WATER DIFFERENTIAL SYSTEM SUPPLY PRESSURE BYPASS SYSTEM SENSOR VALVE (IF USED)
  • Page 46 Installation & Operation Manual Hydronic piping Figure 6-9 Multiple Boilers Zoned with Valves Number of Units Model Required Pipe Sizes 1" 1-1/4" 1-1/2" 2" 2" 2" 2" 1-1/4" 1-1/2" 2" 2" 2-1/2" 2-1/2" 2-1/2" 1-1/2" 2" 2" 2-1/2" 2-1/2" 2-1/2" 3"...
  • Page 47 Installation & Operation Manual Hydronic piping (continued) Figure 6-10 Single Boiler - Non-Zoned Primary/Secondary Piping PRESSURE REDUCING VALVE PRESSURE BACKFLOW GAUGE PREVENTER MAKE UP WATER SEPARATOR SYSTEM SUPPLY SENSOR MAY SUBSTITUTE LOW LOSS HEADER FROM SYSTEM SYSTEM NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART SYSTEM BALL VALVE CIRCULATOR...

  • Page 48: Gas Connections

    Installation & Operation Manual Gas connections Connecting gas supply piping 1. Remove the front access panel and refer to FIG. 7-1 2. Support piping with hangers, not by the boiler or its to pipe gas to the boiler. accessories. Install a field supplied sediment trap / drip leg The gas valve and blower will not support upstream of the boiler gas controls.

  • Page 49: Natural Gas

    14 inches w.c. maximum. Figure 7-2 Inlet Pipe with Backup Wrench Propane Gas: WARNING Knight wall mount boilers are typically shipped ready to fire on natural gas. Check boiler rating plate to determine which fuel the boiler is set for. If set to natural gas, it may be converted to LP by installing an orifice (see page 13).

  • Page 50: Check Inlet Gas Supply

    5640 5130 4720 Knight wall mount boilers are typically shipped ready to fire on natural gas. Check boiler rating plate to WARNING determine which fuel the boiler is set for. If set to natural gas, it may be converted to LP by installing an orifice (see page 13).

  • Page 51: Gas Pressure

    (dynamic) mode. If an in-line regulator is used, it must be a use the bubble test or check for gas leaks minimum of 10 feet from the Knight wall mount boiler. It is can cause severe personal injury, death, very important that the gas line is properly purged by the gas or substantial property damage.

  • Page 52: Field Wiring

    Installation & Operation Manual Field wiring ELECTRICAL SHOCK HAZARD – For 3. Wire the boiler pump as shown in FIG. 8-2. WARNING your safety, turn off electrical power supply 4. When connecting a domestic hot water (DHW) pump, before making any electrical connections connect the wiring to the line voltage terminal strip as to avoid possible electric shock hazard.

  • Page 53: Outdoor Temperature Sensor

    2. Connect these terminals to the normally open contacts on enable outdoor reset operation of the Knight wall mount the flow switch (FIG. 8-4). boiler. If fixed temperature operation is required, do not Variable speed system pump install outdoor sensor.

  • Page 54: Wiring Of The Cascade

    SYSTEM control to use the inlet sensor as the controlling location of the system supply sensor should be downstream sensor. See the Knight Wall Mount Service Manual for of the boiler connections in the main system loop (FIG.’s 6-4 instructions on how to do this. When the inlet sensor and 6-6).
  • Page 55 Installation & Operation Manual Field wiring (continued) Figure 8-4 Low Voltage Field Wiring Connections...

  • Page 56: Condensate Disposal

    Condensate horizontal runs, a second line vent may be from the Knight wall mount boiler will be slightly acidic required and tubing size may need to increase (typically with a pH from 3 to 5). Install a neutralizing to 1 inch.

  • Page 57: Startup

    2. Open automatic air vent (diaphragm-type or bladder-type expansion tank systems only) one turn. 4. The freeze protection set points may be lowered when freeze protection fluid is used (see the Knight Wall 3. Open other vents: Mount Service Manual).

  • Page 58: Check For Gas Leaks

    Installation & Operation Manual Start-up Check for gas leaks Check thermostat circuit(s) Before starting the boiler, and during 1. Disconnect the two external wires connected to each of the WARNING initial operation, smell near the floor and heat/loop demand terminals on the connection board. around the boiler for gas odorant or any 2.

  • Page 59: Start The Boiler

    (continued) Final checks before starting the boiler  Check vent piping and air piping  Read the Knight Wall Mount Service Manual to 1. Check for gastight seal at every connection, seam of air piping, and vent piping. familiarize yourself with SMART SYSTEM control module operation.
  • Page 60 Installation & Operation Manual Start-up Figure 10-2 Operating Instructions...
  • Page 61 5 seconds to place the boiler into Service Mode. be changed in the control. See the Knight Wall Mount Service In Service Mode the boiler will fire at ignition speed and Manual for a detailed explanation of this procedure.
  • Page 62 System Pump Mode selected (reference NOTICE Daylight Savings Time and therefore, will the Knight Wall Mount Service Manual for details). In this require a manual adjustment. mode, any low temperature zones (such as radiant heating) The clock is automatically updated whenever a PC is connected may need additional controls to limit the water temperature and the Win_Pro-Installer program is started.

  • Page 63: Operating Information General

    Operating information General The Knight wall mount boiler can also be programmed to accept a call for heat from a 0 - 10V signal, reference the Knight How the boiler operates Wall Mount Service Manual for a detailed explanation of this The Knight wall mount boiler uses an advanced stainless procedure.

  • Page 64: Temperature Control

    Protection features Modulation Outlet temperature, flue temperature, and temperature The Knight wall mount boiler is capable of modulating its rise limiting firing rate from a minimum of 20% to a maximum of 100%. The outlet temperature is monitored by the boiler outlet The firing rate is dictated by the call for heat (i.e., space...
  • Page 65 To enable this feature change parameter K1 If the current outlet temperature is below the new MRHL to the desired time range, reference the Knight Wall Mount set point, locate the pinhole (SERVICE button) below the Service Manual for details regarding parameters.

  • Page 66: Cascade

    Service manual for information regarding Night Setback. the Cascade (see the Knight Wall Mount Service Manual for Ramp Delay operation of the boilers as described in the Knight an explanation of the offset and differential). The Leader will Wall Mount Service Manual is not active when the boilers are energize the lead boiler on the Cascade.

  • Page 67: Sequence Of Operation

    Installation & Operation Manual Operating information (continued) Sequence of operation OPERATION DISPLAY 1. Upon a call for heat, the gas pressure switch(es) must be closed. 2. Once the gas pressure switch(es) are closed, the control turns on the appropriate pumps (system and boiler pumps for space heating, DHW pump for DHW).

  • Page 68: Access Modes

    Most parameters are available only to the installer, accessible To enter a parameter and continue programming: by entering the installer password, see the Knight Wall Mount Press the RIGHT SELECT [SAVE] key 1 time to return to the Service Manual.

  • Page 69: Knight Wall Mount Boiler Control Module

    Installation & Operation Manual Operating information (continued) Knight wall mount boiler control module Use the control panel (FIG. 11-1) to set temperatures, operating conditions, and monitor boiler operation. Figure 11-1 Control Panel NAVIGATION DIAL The information on the bottom of the display shows the functions of the two SELECT keys (on either corner), and the...

  • Page 70: Status Display Screens

    Installation & Operation Manual Operating information Figure 11-2 Status Display Screen (CALL FOR (BOILER HEAT) STATUS) (OPERATIONAL INFORMATION) (RIGHT SELECT KEY) (LEFT SELECT KEY) (NAVIGATION DIAL) Status Display Screens Section Display Description The unit has not received a call for heat from a remote thermostat nor STANDBY has it received a call for heat from a DHW thermostat.
  • Page 71 Installation & Operation Manual Operating information (continued) Status Display Screens (cont’d) Section Display Description SYSTEM: The temperature read by the system supply sensor (if connected). TANK: The temperature read by the tank sensor (if connected). OUTDOOR: The temperature read by the outdoor sensor (if connected). INLET TEMP: The temperature read at the inlet to the heat exchanger.
  • Page 72 Installation & Operation Manual Operating information Status Display Screens (cont’d) Section Display Description Press and hold the LEFT SELECT key for 5 seconds to enter the Menu MENU Screen. EXIT Press the LEFT SELECT key to exit the current screen or setting. Press the LEFT SELECT key to confirm that the boiler needs to shutdown.

  • Page 73: Maintenance Maintenance And Annual Startup

    Maintenance Maintenance and annual startup Table 12A Service and Maintenance Schedules Owner maintenance Service technician (see the Knight Wall Mount User’s Information (see the following pages for instructions) Manual for instructions) General: • Address reported problems • Check boiler area •...

  • Page 74: Address Reported Problems

    If they cannot be removed, reinstall the air and failure. Leaking water may also cause severe vent lines per this manual and the Knight Wall Mount property damage. Service Manual. 1. Inspect all water and gas piping and verify to be leak free.

  • Page 75: Check Expansion Tank

    Knight Wall Mount Service Manual. Adjust settings if Safety relief valves should be re-inspected WARNING necessary. See Section 1 of the Knight Wall Mount Service AT LEAST ONCE EVERY THREE Manual for adjustment procedures. YEARS, by a licensed plumbing contractor or authorized inspection agency, to ensure 2.

  • Page 76: Cleaning Boiler Heat Exchanger

    3. See Section 3 - Troubleshooting of the Knight Wall 6. Use a vacuum cleaner to remove any accumulation on the Mount Service Manual for other procedures to deal with boiler heating surfaces.

  • Page 77: Oiled Bearing Circulators

    Installation & Operation Manual Maintenance (continued) Oiled bearing circulators Table 12B Heat Exchanger Cleaning Kits 1. The circulator shipped with the Knight wall mount Part Component Model boiler is water-lubricated. No oiling is required. Number Number Description CTN20005 Rear Refractory Cover 2.

  • Page 78: Diagrams

    Installation & Operation Manual Diagrams Figure 13-1 Ladder Diagram JUNCTION BOX 120VAC NEUTRAL GROUND TERMINAL STRIP TERMINAL STRIP 120V SUPPLY "L" 120V SUPPLY "N" INTEGRATED CONTROL BLOWER ON / OFF KB ONLY SWITCH SYSTEM SYSTEM X1-1 X1-6 PUMP "L" PUMP "N" X1-2 3.15A SYSTEM...

  • Page 79: Wiring Diagram

    Installation & Operation Manual Diagrams Figure 13-2 Wiring Diagram LOW VOLTAGE BOX DEPICTS 120 VAC OPTIONAL ITEMS HIGH VOLTAGE BOX DEPICTS DUAL SENSOR SINGLE HOUSING INTEGRATED CONNECTION BOARD BOX DEPICTS CONTROL JUNCTION OPTIONAL ITEMS ALARM X1-3 CONTACTS PUMP RUN-TIME CONTACTS X1-4 24 VAC LOUVER BOILER...
  • Page 80 Revision A (ECO #C05747) initial release. Reflects the new model numbers for the Knight Wall Mount upgrade. Revision B (ECO #C06188) reflects updates made to the ladder and wiring diagrams (ECO #C06158). Revision C (ECO #C06234) reflects changes made to the Service Reminder feature.

This manual is also suitable for:

Wbn081Wbn151Wbn211Wbn106

Table of Contents