Bard WH421, WH602, WH483 Fresh AIR Intake, Condensate Drain, Blower Damper Assembly

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FRESH AIR INTAKE

All units are built with fresh air inlet slots punched in the service panel.

If the unit is equipped with the fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow the damper to operate, the maximum and minium blade position stops must be installed. See Figure 2.

All capacity, efficiency and cost of operation information as required for Department of Energy “Energyguide” Fact Sheets is based upon the fresh air blank-off plate in place and is recommended for maximum energy efficiency.

The blank-off plate is available upon request from the factory and is installed in place of the fresh air damper shipped with each unit.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type system to assure proper drainage.

FIGURE 2

BLOWER DAMPER ASSEMBLY

BLADE IS LOCKED

CLOSED FOR

SHIPPING

MIS-938

Manual 2100-399 Page 6

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Contents Installation Instructions Wall Mounted Package Heat Pumps ModelsContents Getting Other Information and Publications For More INFORMATION, Contact These PublishersElectric Heat Table Wall Mount General InformationHeat Pump Wall Mount Model Nomenclature Unit Dimensions Electrical Specifications Single Circuit Dual CircuitShipping Damage GeneralDuct Work FiltersCondensate Drain Blower Damper AssemblyFresh AIR Intake Installation Instructions Typical InstallationsWall Mounting Information Mounting the UnitMounting Instructions Electric Heat ClearanceWALL-MOUNTING Instructions Common WALL-MOUNTING Installations Unit 24V Terminal Board Wiring Main PowerWiring LOW Voltage Wiring Thermostat Wiring Thermostat Wire SizeCompressor Cutoff and Outdoor Thermostat Wiring Heat AnticipationThermostat Indicator Lamps Thermostat Subbase Predominant FeaturesEmergency Heat Position Compressor Malfunction LightImportant Installer Note High Pressure SwitchThree Phase Scroll Compressor Start UP Information Start UPPhase Monitor Service HintsPressure Service Ports Sequence of OperationDefrost Control Board Troubleshooting TroubleshootingSolid State Heat Pump Control Troubleshooting Procedure Checking Temperature Sensor Outside Unit Circuit Temperature F VS. Resistance R of Temperature SensorRefrigerant Charge FAN Blade Setting DimensionsRemoval of FAN Shroud Cooling Pressure ALL Temperatures F Maximum ESP of Operation Electric Heat onlyModel WH421 WH483 WH602 Speed KW High Speed Low Speed Return Air ModelPressure Heating Pressures ALL Temperatures FOptional Accessories
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WH421, WH483, WH602 specifications

Bard WH602, WH421, and WH482 are distinguished models in Bard's line of high-performance wall-mounted heaters. Each unit is designed to offer reliable heating solutions for various commercial and industrial applications. These models are renowned for their energy efficiency, robust construction, and ease of use, making them ideal for a variety of environments, including warehouses, manufacturing facilities, and other large spaces.

The WH602 model boasts impressive heating capabilities, featuring a powerful fan-forced heater equipped with a 60000 BTU rating. This allows it to effectively heat large areas quickly and efficiently. One of its main features is the high-efficiency, stainless steel heat exchanger that promotes better heat transfer, enhancing the overall performance and longevity of the heater. The WH602 is designed with energy-saving technology, allowing it to operate with minimal electricity consumption while maximizing output.

The WH421 model offers a more compact solution without sacrificing power. With a heating capacity of 42000 BTU, it is suitable for medium-sized spaces. Like the WH602, the WH421 utilizes a stainless steel heat exchanger, ensuring durability and efficient heating. This model is equipped with a quiet, high-performance fan that distributes heat uniformly throughout the space, maintaining comfortable conditions without the distraction of excessive noise. Its compact design also allows for easy installation in tighter spaces.

The WH482 is a versatile model that falls between the two in terms of performance and application. Rated at 48000 BTU, it combines the benefits of both the WH602 and WH421, making it suitable for various heating demands. The WH482 features advanced control options, allowing users to set specific heating schedules and temperatures for improved comfort and energy efficiency. Additionally, it has built-in safety features like over-temperature protection and a thermal cutoff switch, ensuring safe operation in commercial environments.

All three models share key characteristics, including a robust construction built to withstand harsh conditions, user-friendly controls, and compliance with industry safety standards. Their wall-mounted design saves valuable floor space while providing powerful heating performance. Overall, Bard WH602, WH421, and WH482 represent a commitment to quality, performance, and customer satisfaction, making them top choices for businesses seeking efficient heating solutions.
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