Lochinvar WH 55-399 Determine boiler location, Installation must comply with, Provide clearances

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Installation & Operation Manual

1 Determine boiler location

Installation must comply with:

•Local, state, provincial, and national codes, laws, regulations, and ordinances.

•National Fuel Gas Code, ANSI Z223.1 – latest edition.

•Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1, when required.

•National Electrical Code.

•For Canada only: B149.1 Installation Code, CSA C22.1 Canadian Electrical Code Part 1 and any local codes.

NOTICE

The Knight wall mount boiler gas

manifold and controls met safe lighting

 

 

and other performance criteria when the

 

boiler underwent tests specified in ANSI

 

Z21.13 – latest edition.

Before locating the boiler, check:

1. Check for nearby connection to:

• System water piping

• Venting connections

• Gas supply piping

• Electrical power

￿WARNING

￿WARNING

This appliance is certified as an indoor appliance. Do not install the appliance outdoors or locate where the appliance will be exposed to freezing temperatures or to temperatures that exceed 100°F.

Do not install the appliance where the relative humidity may exceed 93%. Do not install the appliance where condensation may form on the inside or outside of the appliance, or where condensation may fall onto the appliance.

Failure to install the appliance indoors could result in severe personal injury, death, or substantial property damage.

This appliance requires a special venting system. The vent connection to the appliance is made of CPVC. Field supplied vent fittings must be cemented to the CPVC fitting on the boiler. Use only the vent materials, primer, and cement specified in the manual to make the vent connections. Failure to follow this warning could result in fire, personal injury, or death.

2. Locate the appliance so that if water connections should

leak, water damage will not occur. When such locations

cannot be avoided, it is recommended that a suitable

drain pan, adequately drained, be installed under the

appliance. The pan must not restrict combustion air

flow. Under no circumstances is the manufacturer to be

held responsible for water damage in connection with

this appliance, or any of its components.

3. Check area around the boiler. Remove any combustible

materials, gasoline and other flammable liquids.

Failure to keep boiler area clear and free ￿ WARNING of combustible materials, gasoline, and

Closet and alcove installations

A closet is any room the boiler is installed in which the room volume is less than the room volume listed in the table below. An alcove is any room which meets the criteria for a closet, but it does not have a door.

Model

Room Volume

(in cubic feet)

 

 

55

- 85

90

110

- 285

108

399

178

Example: Room dimensions = 4 feet long, 4 feet wide, and 9 foot ceiling = 4 x 4 x 9 = 144 cubic feet. This would be considered a closet for the WHN399 model.

other flammable liquids and vapors can result in severe personal injury, death, or substantial property damage.

4. The Knight wall mount boiler must be installed so that gas control system components are protected from dripping or spraying water or rain during operation or service.

￿WARNING

For closet and alcove installations as shown in FIG.’s 1-1 and 1-2, CPVC or stainless steel vent material must be used inside the structure. The two ventilating air openings shown in FIG. 1-1 are required for this arrangement. Failure to follow this warning could result in fire, personal injury, or death.

5. If a new boiler will replace an existing boiler, check for and correct system problems, such as:

• System leaks causing oxygen corrosion or heat exchanger cracks from hard water deposits.

• Incorrectly-sized expansion tank.

• Lack of freeze protection in boiler water causing system and boiler to freeze and leak.

Provide clearances:

Clearances from combustible materials

1.Hot water pipes—at least 1/4" from combustible materials.

2.Vent pipe – at least 1" from combustible materials.

3.See FIG.’s 1-1 and 1-2 on page 8 for other clearance minimums.

Clearances for service access

1.See FIG.’s 1-1 and 1-2 on page 8 for recommended service clearances. If you do not provide the minimum clearances shown, it may not be possible to service the boiler without removing it from the space.

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Contents Models WH 55 Contents Boiler water When servicing boilerPlease read before proceeding Boiler operationStainless steel heat exchanger Knight Wall Mount Boiler How it worksModels 55 Knight Wall Mount Boiler Ahri Rating RatingsBefore locating the boiler, check Installation must comply withCloset and alcove installations Determine boiler location1Closet Installation Minimum Required Clearances Prevent combustion air contamination PrecautionsVent and air piping Wall mounting locationProducts to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet Prepare boilerGas conversions Mounting to a metal studded wall Mounting the boilerMounting to a wood studded wall Mounting to a concrete wallDirect venting options Sidewall Vent General ventingAir intake/vent connections Install vent and combustion air pipingModel Max Vent Air Requirements for installation in CanadaSizing Model Kit Number Equivalent Vent LengthAir inlet pipe materials MaterialsAir contamination Optional room airVent fittings Approved PVC/CPVC Vent Pipe and FittingsMaterial Standard Vent pipePolypropylene ModelCentrotherm InnoFlue SW Duravent Polypro Stainless steel vent Determine location If using the alternate sidewall terminationSidewall direct venting Vent/air termination sidewall2AClearance to Gravity Air Inlets Prepare wall penetrations Model Air Vent Centerline WidthMultiple vent/air terminations Prepare wall penetrations Alternate Field Supplied OptionSidewall termination optional concentric vent Sidewall termination installationDescription and usage Sidewall termination optional concentric vent models 92 and 3 Concentric Vent Dimensional Drawing reference D onMultiventing sidewall terminations 12Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct ventingPrepare roof penetrations Vertical termination optional concentric vent Vertical termination installationMinimum Combustion AIR Typical Multiventing vertical terminationsExisting vent as a chase Alternate vertical concentric ventingVent / Air Inlet Size Minimum Existing Vent / Chase Size Concentric Venting ArrangementChilled water system Hydronic pipingSystem water piping methods General piping information Low water cutoff deviceNear boiler piping components Circulator sizing Near boiler piping connectionsPump Size Grundfos 20F Temperature Rise Applications25F Temperature Rise Applications 35F Temperature Rise ApplicationsVariable speed pump setup Smart System / Multi-temperature loop control optionVariable speed pump option 3Single Boiler Primary / Secondary Piping Make UP Water Indirect Number of Units Boiler Member 8Single Boiler Multiple Temperature DHW Priority Model Required Pipe Sizes Boiler Make UP Boiler Gas connections Connecting gas supply pipingPropane Gas Natural gasCheck inlet gas supply Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementInstallation must comply with Low voltage connections Field wiringLine voltage connections Thermostat Outdoor temperature sensorLouver proving switch Flow switchBoiler management system Alarm contactsWiring of the cascade System supply sensorFieldwiring InstallationCondensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Clean/Inspect Trap AssemblyCheck for gas leaks Inspect/fill condensate system Check thermostat circuitsCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctly2Operating Instructions Models 55 Operating Instructions Model Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation General Operating informationProtection features Boiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationInstaller Access modesUser 1Control Panel Knight wall mount boiler control moduleCall for Heat Information Dial Function See the following pages for instructions General Maintenance Maintenance and annual startupService technician Owner maintenanceMaintenance Flue vent system and air piping Check ignition ground wiringCheck all boiler wiring Check control settingsCheck burner flame Check flame signalCleaning boiler heat exchanger Perform start-up and checksPC Interface Diagrams2Wiring Diagram

WH 55-399 specifications

The Lochinvar WH 55-399 is a high-efficiency water heater designed for residential and commercial applications, offering a reliable solution for hot water needs. This model represents an advanced approach to water heating, combining cutting-edge technologies and features that ensure optimal performance and energy efficiency.

One of the standout features of the Lochinvar WH 55-399 is its high thermal efficiency, which is a key factor in reducing energy consumption and operating costs. With an efficiency rating exceeding 90%, this water heater ensures that more energy is converted into usable hot water, making it an environmentally friendly choice.

The WH 55-399 utilizes advanced condensing technology, which allows it to extract additional heat from the exhaust gases before they are expelled. This process not only increases efficiency but also significantly decreases greenhouse gas emissions. The unit is also equipped with an intelligent control system that allows for precise temperature adjustments, ensuring that the user has an optimal supply of hot water while maintaining energy savings.

Another important aspect of this model is its impressive recovery rate. The ability to quickly heat water after a significant draw ensures that users will not experience interruptions in their hot water supply, making it ideal for busy households or commercial environments. This is particularly beneficial in applications requiring consistent hot water availability, such as restaurants or athletic facilities.

The Lochinvar WH 55-399 is designed with durability in mind. Constructed from high-quality materials, this water heater boasts a robust tank lined with corrosion-resistant coatings, extending the lifespan of the unit and reducing maintenance needs. Additionally, it features a reliable gas burner and a well-insulated tank, contributing to its overall efficiency and performance.

Safety is also a priority with the WH 55-399. The unit incorporates multiple safety features, including a flame sensor, automatic shut-off valve, and over-temperature protection, ensuring peace of mind for users.

In summary, the Lochinvar WH 55-399 stands out with its combination of high efficiency, advanced technology, and durable construction. Whether for residential or commercial use, this water heater provides a dependable and cost-effective solution for all hot water needs. Its innovative design and performance characteristics make it a top choice for anyone seeking a premium water heating option.
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