Wall Mount Products - Clearances For Outdoor Condenser Fan Airflow; Wall Mount Products - Clearances For Indoor Supply And Return Airflow - Bard 11EER WA W18AB-A User's Application Manual

WALL MOUNT Products – Clearances for Outdoor Condenser Fan Airflow
Unit placement and avoidance of obstructions outside the structure are very critical to unit performance. Avoid
installing the unit in areas that will obstruct outdoor condenser fan airflow or create "pockets" of heated air being
exhausted from the condenser coil. Solid construction fences should not be placed directly in front of the unit
without provisions for condenser airflow. Solid exterior walls need to be spaced as far away from units as possible to
avoid pockets of heated air causing condenser air recirculation.
Solid barriers located too close to the face or side surfaces (condenser fan inlet and outlet) of the WALL MOUNT can
both impede airflow and force heated air to short circuit (be returned) from the condenser outlet to the condenser
inlet. Either condition will effectively raise the condensing temperature and pressure reducing cooling capacity
and efficiency. In extreme cases, the unit may fail to operate due to high refrigerant pressures inside the unit, and
compressor and/or fan motor failure may occur. Clearances given in installation instructions ensure components can
be serviced and maintenance can be performed when needed.
National and local electrical codes must be reviewed before unit installation.
Always use common sense when installing products, follow unit clearances given in the installation instructions
and contact local Bard distributors when additional knowledge is needed regarding unit clearances for proper unit
functionality.
WALL MOUNT Products – Clearances for Indoor Supply and Return Airflow
The Bard unit should be placed in an area where the supply (leaving conditioned air) and return (unit air intake)
air paths will be unrestricted. Avoid placing objects in the structure within 24" of the return (unit air intake) grille.
Avoid placing objects directly in the path of the supply (conditioned) air grille. This will inhibit the "throw" of the
supply air throughout the structure and reduce the cooling and/or heating ability of the unit; in extreme cases, this
may cause evaporator coil freezing issues. Supply air must be able to freely circulate conditioned air throughout the
structure. Adjustment of supply grille deflectors is often necessary to ensure proper room circulation.
Ducted applications should not exceed the rated duct static pressures given in the unit specification sheets. Special
requirements for duct construction and distances to combustible materials need to be followed per the installation
instructions when electric heating is used.
Manual 2100-034G
Page 6 of 21
Unit Installation – Wall Mount