Bard W12A2-A User Manual
INSTALLATION INSTRUCTIONS
WALL MOUNTED
P ACKAGE AIR CONDITIONERS
Model:
W12A2-A
W12A1-K
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914....Moving ahead just as planned.
Manual: 2100-509E
Supersedes: 2100-509D
File: Volume III Tab 16
Date: 08-20-12
Manual 2100-509E
Page 1 of 17
CONTENTS
Getting Other Informations and Publications 3
Wall Mount General Information
Air Conditioner Wall Mount Model Nomenclature
Shipping Damage
General
Duct Work
Filters
Fresh Air Intake
Condensate Drain
Installation Instructions
Wall Mounting Information
Mounting the Unit
Wiring – Main Power
Wiring – Low Voltage Wiring
Figures
Figure 1 Unit Dimensions .......................................5
Figure 2 Fresh Air Damper .....................................7
Figure 3 Mounting Instructions ...............................9
Figure 4 Wall Mounting Instructions .....................10
Figure 5 Wall Mounting Instructions .....................10
Figure 6 Common Wall Mounting
Instructions ............................................. 11
Figure 7 Fan Blade Setting Dimensions ...............16
......................................................................6
..................................................................7
.........................................................................7
......................................................6
..........................................................7
......................................................7
.........................................8
.......................................................8
................................................12
....................................12
......4
Start Up
Requirements: R-410A
Important Installer Note
Service Hints
High & Low Pressure Switch
Sequence of Operation
Compressor Control Module
Adjustments
Pressure Service Ports
Troubleshooting
Fan Blade Setting Dimension
Refrigerant Charge
Pressure Table
Optional Field Installed Accessories
Tables
Table 1 Electric Heat Table ................................... 4
Table 2 Electrical Specications ...........................6
Table 3 Fan Blade Dimensions ...........................16
Table 4 Recommended Operating Ranges ........16
Table 5 Indoor Blower Performance ...................16
Table 6 Maximum ESP of Operation
Electric Heat Only ..................................16
Table 7 Pressure Table - Cooling ........................ 17
T able 8 Optional Accessories .............................17
............................................................14
.............................................................15
.........................................................17
.............................................13
............................................14
....................................14
............................................14
....................................14
............................................15
..................................16
..................................................16
........................17
Manual 2100-509E
Page 2 of 17
GETTING OTHER INFORMATION and PUBLICATIONS
These publications can help you install the air
conditioner or heat pump. You can usually nd these
at your local library or purchase them directly from the
publisher. Be sure to consult current edition of each
standard.
National Electrical Code .......................ANSI/NFPA 70
Standard for the Installation of .......... ANSI/NFPA 90A
Air Conditioning and
Ventilating Systems
Standard for Warm Air Heating .........ANSI/NFPA 90B
and Air Conditioning Systems
Load Calculation for .......................... ACCA Manual J
Residential Winter and
Summer Air Conditioning
Duct Design for .................................ACCA Manual D
Residential Winter and
Summer Air Conditioning
and Equipment Selection
For more information, contact these
publishers:
ACCA Air Conditioning Contractors of America
1712 New Hampshire Avenue NW
Washington, DC 20009
Telephone: (202) 483-9370
Fax: (202) 234-4721
ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: (212) 642-4900
Fax: (212) 302-1286
ASHRAE American Society of Heating, Refrigerating
1791 Tullie Circle, NE
Atlanta, GA 30329-2305
Telephone: (404) 636-8400
Fax: (404) 321-5478
NFPA National Fire Protection Association
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: (800) 344-355
Fax: (617) 984-7057
and Air Conditioning Engineers, Inc.
Manufactured under the following U.S. patent numbers:
5,485,878 and 5,301,744
Manual 2100-509E
Page 3 of 17
WALL MOUNT GENERAL INFORMATION
AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE
W 12 A 2 – A 00 X X X X X J
MODEL
NUMBER
CAPACITY
12 - 1 Ton
AIR
CONDITIONER
REVISIONS
VOLTS & PHASE
A - 230/208/60/1
K - 115/60/1
VENTILATION OPTIONS
X - Barometric Fresh Air
Damper (Standard)
B - Blank-off Plate
E - Economizer (Internal) - Fully
Modulating with Exhaust
V - Commercial Ventilator -
Motorized with Exhaust
KW
00 - No KW
02 - 2.2 KW
03 - 3.6 KW
05 - 5.0 KW
CONTROL
MODULES
E - Low Ambient
Control
J - Telecommunication
COIL OPTIONS
X - Standard Coils
COLOR OPTIONS
X - Beige
4 - Buckeye Gray
OUTLET OPTIONS
X - Front
FILTER OPTIONS
X - 1-Inch Throwaway
(Standard)
P - 2-Inch Pleated
TABLE 1
ELECTRIC HEAT TABLE
Models
KW
02 18.3 7,985
03 15.0 12,760 13.0 9,705
05 20.8 17,540 18.1 13,275
j With blower watts included
A
W12A2-A W12A1-K
240V 208V 120V
j
BTU
A
j
BTU
A
j
BTU
Manual 2100-509E
Page 4 of 17
32.00
30.13
17.00
2.25
5.00
2.00*
17.00
5.00
5.00*
20.25
2.50
14.63
19.72
1.75
31.06
26.75
1.50
46.00
19.88
10.00
18.25
23.75
10.00
19.72
Heater and Filter
Access
Opening
Supply Air
Opening
Return Air
Opening
Return Air
Opening
Back View
Front View Right Side View
Supply Air
Back View
Entrance
Electrical
Control
Panel
Hood 4° Pitch
Built-in Rain
Electric Heat
Ventilation Air
Entrance
Low Voltage
Return air opening is in lowerReturn air opening is in upper
Entrance
factory standard position
is Blow Thru
Condenser Airflow
Flanges (Built In)
Side Wall Mounting
Shipping Location
Top Rain Flashing
field convertible position
Optional Electrical
( * ) Position of return air flanges are interchangeable between two positions. Factory built at 5 inches.
Note: Maintain a minimum of 20 inches clearance on right side to allow access to control panel and
allow proper airflow to outdoor condenser coil. Allow 15 inches on left side.
MIS-2608 A
Circuit Breaker
(Optional)
FIGURE 1
UNIT DIMENSIONS
(*) Position of return air anges are interchangeable between two positions. Factory built at 5 inches.
NOTE: Maintain a minimum of 20 inches clearance on right side to allow access to control panel and allow proper airow to outdoor
condenser coil. Allow 15 inches on left side.
Manual 2100-509E
Page 5 of 17
TABLE 2
ELECTRICAL HEAT SPECIFICATIONS
SINGLE CIRCUIT
Rated Volts
Models
W12A2-A00
A03
A05
W12A1-K00
K02
j Maximum size of the time delay fuse or HACR type circuit breaker for protection of eld wiring conductors.
Based on 75°C copper wire. All wiring must conform to NEC and all local codes.
These “Minimum Circuit Ampacity” values are to be used for sizing the eld power conductors. Refer to the National
Electrical Code (latest revision), article 310 for power conductor sizing.
CAUTION: When more than one eld power conductor circuit is run through one conduit, the conductors must be
derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than 3
conductors are in a raceway.
and
Phase
230/208-1
115-1
No. Field
Power
Circuits
1
1
1
1
1
Minimum
Circuit
Ampacity
9
20
28
20
29
j
Maximum
External Fuse
or Circuit
Breaker
15
20
30
30
30
Field Power
Wire Size
14
12
10
10
10
Ground
Wire Size
14
12
10
10
10
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
air 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 3 for information on codes and
standards.
Size of unit for a proposed installation should be based
on heat loss/gain 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.
Manual 2100-509E
Page 6 of 17
Loading...