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WH-I-O Rev H
Installation & Operation Manual
Models: WH 55 - 399
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.
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Contents HAZARD DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6. HYDRONIC PIPING PLEASE READ BEFORE PROCEEDING . . . . . . . . . . . . 3 System Water Piping Methods . . . . . . . . . . . . . . . . . . . . . 33 THE KNIGHT WALL MOUNT BOILER -- HOW IT WORKS . 4-5 Low Water Cutoff Device . . . . . . . . . . . . . . . . . . . . . . . . . 33 RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chilled Water System . . . . . . . . . . . . . . . . .
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Installation & Operation Manual Please read before proceeding Installer – Read all instructions, When servicing boiler – 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. � To avoid severe burns, allow boiler to cool before User – This manual is for use only performing maintenance. by a qualified heating installer/
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Installation & Operation Manual The Knight Wall Mount Boiler - How it works... 1. Stainless steel heat exchanger 15. Gas connection pipe Allows system water to flow around specially designed Threaded pipe connection. This pipe should be tubes for maximum heat transfer, while providing connected to the incoming gas supply for the purpose of protection against flue gas corrosion. delivering gas to the boiler. 2. Combustion chamber access cover 16. SMART SYSTEM Control Module
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Installation & Operation Manual The Knight Wall Mount Boiler - How it works... (continued) Models 55 - 399 17 11 21 15 13 22 14 28 29 20 32 FRONT OF UNIT IMG00117 10 Front View Bottom View 33 17 5 27 3 25 4 11 23 28 2 1 16 33 24 19 31 30 18 7 26 6 IMG00162 8 IMG00161 Left Side (inside unit) Right Side (inside unit) 5
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Installation & Operation Manual Ratings A S M E H Knight Wall Mount Boiler Other Specifications AHRI Rating Heating Net Input Capacity AHRI AFUE Model Number Vent/Air MBH MBH % Ratings Size Boiler Water Water Gas Water, Note: Change (Note 5) Content Connections Connections “N” to “L” for MBH Gallons L.P. gas models. (Note 4) Min Max (Note 1, 8) (Note 2, 8) (Note 3, 8) WHN055 11 55 51 44 96 2.5 1" 1/2" 2" WHN085 17 85 79 69 96 2.5 1" 1/2
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Installation & Operation Manual 1 Determine boiler location Installation must comply with: This appliance is certified as an indoor WARNING appliance. Do not install the appliance � Local, state, provincial, and national codes, laws, outdoors or locate where the appliance will regulations, and ordinances. be exposed to freezing temperatures or to � National Fuel Gas Code, ANSI Z223.1 – latest edition. temperatures that exceed 100°F. � Standard for Controls and Safety Dev
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Installation & Operation Manual 1 Determine boiler location Figure 1-1 Closet Installation - Minimum Required Clearances For closet installations, CPVC, TOP WARNING LEFT 6" MINIMUM polypropylene or stainless steel 0" MINIMUM vent material MUST BE used in VENTILATING * AIR OPENING a closet structure due to elevated temperatures. Failure to follow this warning could result in fire, 6" personal injury, or death. RIGHT 0" MINIMUM 1" MINIMUM CLEARANCE AROUND VENT PIPE CLOSED DO
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Installation & Operation Manual 1 Determine boiler location (continued) Provide air openings to room: Residential garage installation Knight wall mount boiler alone in boiler room Precautions Take the following precautions when installing the appliance in 1. No air ventilation openings into the boiler room are a residential garage. If the appliance is located in a residential needed when clearances around the Knight wall mount garage, it should be installed in compliance with
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Installation & Operation Manual 1 Determine boiler location Table 1A Corrosive Contaminants and Sources When using an existing vent system to 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. Chlorinated waxes/cleaners Check the following venting components before installin
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Installation & Operation Manual 1 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 appliance. This will cause flue gas spillage or and/or CAN/CSA B149.1, Natural Gas and Propane appliance ma
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Installation & Operation Manual 2 Prepare boiler Table 2A LP Conversion Table Remove boiler from wood pallet LP Conversion Table 1. After removing the outer shipping carton from the boiler, remove the parts box. Model LP Orifice Stamping 55 055 2. To remove the boiler from the pallet: 85 085 a. Remove the two (2) lag bolts securing the bottom 110 110 of the unit to the pallet. 155 155 b. Lift the boiler off the wall bracket mounted to 199 199 the pallet. 285 H285 399 8.0 3
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Installation & Operation Manual 2 Prepare boiler (continued) The boiler is too heavy for a single person to 13. Reattach the Molex plug to the gas valve. WARNING lift. A minimum of two people is needed for 14. Models 55 - 285 only, turn the gas valve power switch to mounting the boiler onto the bracket. the “ON” position. Mounting to a concrete wall: 15. Model 399 only, turn on power at the source. 1. Mount the wall bracket using the two (2) wedge anchor 16. After the inst
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Installation & Operation Manual 3 General venting Direct venting options - Sidewall Vent Figure 3-1 Two-Pipe Sidewall Termination - See page Figure 3-2 PVC/CPVC Concentric Sidewall 22 for more details Termination - See page 26 for more details Figure 3-4 PVC/CPVC Concentric Figure 3-5 Vertical Vent, Sidewall Air Figure 3-3 Two-Pipe Vertical Vertical Termination - See page 30 - See page 18 for more details Termination - See page 29 for for more details more details 14
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Installation & Operation Manual 3 General venting 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. procedures in this manual for the method chosen. Refer to the Ensure the vent and air piping and the information in this manual to determ
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Installation & Operation Manual 3 General venting Note: The minimum combustion air and vent piping Requirements for installation in length is 12 equivalent feet. Canada When determining equivalent combustion air and vent 1. Installations must be made with a vent pipe system length, add 5 feet for each 90° elbow and 3 feet for each certified to ULC-S636. 45° elbow. 2. The first three (3) feet of plastic vent pipe from the EXAMPLE: 20 feet of PVC pipe + (4) 90° elbows + (2
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Installation & Operation Manual 3 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. PVC, CPVC, Polypropylene or ABS The PVC, CPVC, ABS, Dryer Vent or Flex Duct air inlet
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Installation & Operation Manual 3 General venting Optional room air Air contamination Optional room air is intended for NOTICE commercial applications. Combustion air Pool and laundry products and common household and hobby piping to the outside is recommended for products often contain fluorine or chlorine compounds. residential applications. When these chemicals pass through the boiler, they can form Commercial applications utilizing the Knight wall mount strong acid
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Installation & Operation Manual 3 General venting (continued) PVC/CPVC 1. Work from the boiler to vent or air termination. Do not exceed the lengths given in this manual for the air or vent This product has been approved for use with the PVC/CPVC piping. vent materials listed in Table 3D. 2. Cut pipe to the required lengths and deburr the inside and outside of the pipe ends. Installing vent and air piping 3. Chamfer outside of each pipe end to ensure even The vent connect
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Installation & Operation Manual 3 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. Failure to comply could result in severe All terminations must comply with listed options in this manual personal injury, death, or substantial and be a single-wall ve
