BARD MANUFACTURING COMPANY, INC.
WA Series High Efficiency Air Conditioner
1.0 GENERAL
Furnish and install a self-contained, vertical, exterior wall mount,
through-the-wall air conditioner to be manufactured by Bard
Manufacturing Company. The unit shall be approved and listed by
Underwriters Laboratories (UL) and Canadian Underwriters Laboratories
(CUL). Unit shall be factory assembled, pre-charged, pre-wired, tested and
ready to operate. Unit performance shall be certified in accordance with
the Air Conditioning and Refrigeration Institute Standard 390-2003 for
Single Package Vertical Units. Units shall be rated by EER.
EER must be mininum of 10.0.
Units shall be: 3, 4, 5 ton nominal capacity:
W38A1- nominal 3 ton capacity,
W49A1- nominal 4 ton capacity,
W61A1- nominal 5 ton capacity.
Manufacturers: Capacities shall be as indicated on drawings and units
shall be manufactured by Bard Manufacturing Company or prior approved
equal.
2.0 CONSTRUCTION FEATURES
2.1 CABINET
Construction shall be a single, enclosed, weatherproof casing
constructed of 20-gauge galvanized steel. Unit base is constructed
of 16-gauge galvanized steel. Each exterior casing panel to be
bonderized and finished with baked-on exterior polyester enamel
paint prior to assembly. The baked-on cured paint finish shall pass
the industry rub test with a minimum of 72 rubs MEK (Methyl Ethyl
Ketone) or standard rub test of a minimum of 100 rubs using
Tolulene. Cooling section shall be fully insulated with 1-inch
fiberglass to prevent sweating and to muffle sounds. Openings shall
be provided for power connections. Access openings appropriate
for outside structure to all fan motors and compressor for making
repairs and for removing internal components without removing unit
from its permanent installation. Fresh air intake and outdoor coil
shall be protected from intrusions by a sturdy metal grating with less
than 1/4 inch openings.
Separate filter service door shall provide easy access for filter
change, by removing 2 screws on filter access door. No large access
covers will need to removed.
Engineering Specification Guide
F1925 (2010 08) Page 1 of 5
2.2 DRAIN PAN
Drain pan shall be constructed of 20-gauge galvanized steel,
bonderized and finished with baked-on exterior polyester enamel
paint.
2.3 INSULATION
Insulation shall be foil faced for ease of cleaning.
2.4 MOUNTING BRACKETS
Full-length side mounting brackets shall be an integral part of the
cabinet.
2.5 REFRIGERATION SYSTEM
All models shall use a high efficiency scroll or compressor. The
compressor shall be covered by a 5-year parts warranty. The
refrigeration circuit shall be equipped with factory installed high and
low pressure controls and liquid line filter dryer. Compressor shall
be mounted rubber grommets. Unit shall be provided with R-410A
(HFC) non-ozone depleting refrigerant.
2.6 CONDENSER FAN MOTOR
The condenser fan, motor and shroud shall be of slide out
configuration for easy access.
2.7 INDOOR BLOWER MOTOR
The indoor blower motor shall be high efficiency ECM motor
providing low sound levels with soft start capability and high
efficiency operation. Motor will automatically respond to higher
static ducted applications without user adjustment or wiring
changes.
2.8 ELECTRICAL COMPONENTS
Electrical components are easily accessible for routine inspection
and maintenance through front service panels. Circuit breaker is
standard on all 208/230-volt models and rotary disconnect standard
on all 460-volt models. Circuit breaker/rotary disconnect access is
through lockable access panel.
Phase rotation protection and phase failure protection shall be
standard factory installed fea tures on all equipm ent with thre e-phase
power. If unit is wired incorrectly phase monitor will lock out
compressor operation and red warning light shall energize. Once
power wiring is corrected at field power wiring location, a green light
will energize on phase monitor. If a phase of power is lost, the phase
monitor will also lock out.
F1925 (2010 08) Page 2 of 5