DUCT WORK

All duct work, supply and return, must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage.

Refer to Maximum ESP of operation Electric Heat Tables 8.

Design the duct work according to methods given by the Air Conditioning Contractors of America (ACCA). When duct runs through unheated spaces, it should be insulated with a minimum of one inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

Models W18 & W24 are approved for zero inch clearance to the supply duct. For model series W30, W36, W42, W48 and W60 a 1/4 inch clearance to combustible material for the first three feet of duct attached to the outlet air frame is required. See Wall Mounting Instructions and Figures 3 and 4 for further details.

Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity.

Some installations may not require any return air duct. A metallic return air grille is required with installations not requiring a return air duct. The spacing between louvers on the grille shall not be larger than 5/8 inch.

Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. If using a return air filter grille, filters must be of sufficient size to allow a maximum velocity of 400 fpm.

FILTERS

A 1-inch throwaway filter is standard with each unit. The filter slides into position making it easy to service. This filter can be serviced from the outside by removing the filter access panel. A 1-inch washable filter and 2- inch pleated filter are also available as optional accessories. The internal filter brackets are adjustable to accommodate the 2-inch filter by bending two (2) tabs down on each side of the filter support bracket.

FRESH AIR INTAKE

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

If the unit is equipped with a 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 minimum blade position stops must be installed. See Figure 1.

All capacity, efficiency and cost of operation information 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.

NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to installation only in a single story structure.

FIGURE 1

FRESH AIR DAMPER

Manual

2100-511

Page

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Bard W60H1, W24H1, W18H1, W48H1, W36H1, W42H1, W30H1 Duct Work, Filters, Fresh AIR Intake, Condensate Drain, Fresh AIR Damper
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W60H1, W18H1, W48H1, W30H1, W42H1 specifications

The Bard W24H1D, W24H1, W30H1D, W36H1, and W48H1D are advanced wall-mounted heating and cooling units that exemplify efficiency, performance, and adaptability. These models are particularly suited for residential and light commercial applications, providing excellent temperature control in a variety of settings.

One of the distinguishing features of these Bard units is their robust heat pump technology, which offers both heating and cooling capabilities. This dual-functionality enables users to regulate indoor climates effectively throughout different seasons. Bard's heat pumps are designed for high efficiency, helping to reduce energy consumption and lower utility bills while maintaining comfort.

The W24H1D and W24H1 models are suited for spaces requiring moderate heating and cooling, with their compact design allowing for easy installation in tight spaces. They provide a heating capacity of 24,000 BTU and are capable of delivering exceptional performance even in colder climates. The W30H1D, on the other hand, elevates this performance with a slightly higher output of 30,000 BTU, making it ideal for larger areas or environments with intensified temperature control needs.

For larger applications, the W36H1 and W48H1D models stand out with their impressive heating capacities of 36,000 BTU and 48,000 BTU, respectively. These units are engineered to tackle larger installations with ease, ensuring warmth during harsh winters and refreshing cool air in sweltering summers. The robust construction of these models also contributes to their durability and longevity, making them a cost-effective investment over time.

In addition to their heating and cooling capabilities, these Bard models come equipped with user-friendly interfaces, allowing for easy temperature adjustments. Many units include programmable thermostats that can be customized for different times of the day, enhancing convenience and energy management.

A standout characteristic of the Bard line is their quiet operation. Utilizing sound-dampening technology, these units are designed to minimize noise levels, making them suitable for residential settings where peace and tranquility are essential.

Moreover, Bard’s commitment to efficiency is evident in the design of these units. They adhere to strict energy efficiency guidelines, including the Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER) ratings. This attention to energy efficiency not only benefits the environment but also assures users of lower operational costs.

In summary, the Bard W24H1D, W24H1, W30H1D, W36H1, and W48H1D models provide versatile, efficient heating and cooling solutions suitable for various applications. With their advanced technologies and user-friendly features, these units stand out in the HVAC market, offering reliability and comfort year-round.
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