SHIPPING DAMAGE

Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent.

GENERAL

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.

The refrigerant system is completely assembled and charged. All internal wiring is complete.

The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.

These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation. Note particularly “Starting Procedure” and any tags and/or labels attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Page 1 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America (ACCA).

The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

DUCT WORK

All duct work, supply and return, must be properly sized for the design air flow 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 Table 9 for maximum static pressure available for duct design.

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 1 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.

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 4 and 5 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.

CAUTION

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 inches.

Any grille that meets the 5/8 inch louver criteria, may be used. It is recommended that Bard Return Air Grille Kit RG-2 thru RG-5 or RFG-2 thru RFG-5 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.

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

Manual 2100-425 Page 5

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Bard WA611, WA702-A, WA721, WA701-C, WA701-B installation instructions Shipping Damage, General, Duct Work
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WA701-C, WA701-B, WA611, WA721, WA702-A specifications

The Bard WA702-A, WA721, WA611, WA701-B, and WA701-C are part of Bard's renowned series of wall-mounted HVAC units designed for superior heating and cooling performance in various applications, particularly in the commercial and residential sectors. Each model boasts distinctive features and technologies that cater to specific comfort needs and energy efficiency requirements.

The Bard WA702-A model is noted for its energy-efficient engineering. It utilizes advanced scroll compressor technology, ensuring quiet operation and improved reliability. The unit’s high seasonal energy efficiency ratio (SEER) allows it to operate effectively in a variety of climate conditions, providing economic savings on energy bills.

The WA721 model takes efficiency a step further by incorporating Bard’s innovative electric heat option, which delivers rapid heating capabilities. This model is suitable for colder climates where quick temperature adjustments are essential. Its compact design allows for easy installation without compromising space, making it ideal for both residential and light commercial settings.

The WA611 is engineered with versatility in mind. This model supports multi-zone heating and cooling, allowing users to adjust temperatures in different areas independently. Its advanced controls facilitate optimal comfort while minimizing energy consumption. The WA611 also features an integrated air filtration system to enhance indoor air quality, which is a significant consideration in modern HVAC systems.

For those seeking dual functionality, the WA701-B and WA701-C models stand out with their remarkable heating and cooling capabilities. Both units are equipped with Bard’s patented thermal expansion valve (TXV) that optimizes refrigerant flow for improved efficiency across varying loads. The WA701 series includes robust insulation to reduce noise levels and enhance performance during operation.

In addition to their energy-efficient and space-saving designs, all models feature easy-to-use digital controls, enabling users to adjust settings conveniently. Moreover, the units are constructed with durable materials, providing long-lasting performance even in demanding environments.

Overall, the Bard WA series represents a blend of innovative technology, efficiency, and user-friendly designs that address the ever-changing needs of heating and cooling in contemporary spaces. Whether it’s for residential purposes or commercial applications, these models stand out for their promising performance and reliability, ensuring comfort and satisfaction for users.
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