INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE AIR CONDITIONERS
Model:
WA121
Bard Manufacturing Company, Inc. |
Manual : |
2100-234I |
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Bryan, Ohio 43506 |
Supersedes: |
2100-234H |
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Since 1914....Moving ahead just as planned. |
File: |
Volume III Tab 16 |
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Date: |
08-01-07 |
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© Copyright 2002
Manual 2100-234I
Page |
1 of 17 |
CONTENTS
Getting Other Informations and Publications |
3 |
Start Up |
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Important Installer Note .......................................... |
14 |
Wall Mount General Information |
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Service Hints .......................................................... |
14 |
Air Conditioner Wall Mount Model Nomenclature |
..... 4 |
High Pressure Switch ............................................. |
14 |
Shipping Damage ..................................................... |
6 |
Sequence of Operation........................................... |
14 |
General ..................................................................... |
6 |
Compressor Control Module ................................... |
14 |
Duct Work ................................................................. |
7 |
Adjustments ............................................................ |
15 |
Filters ........................................................................ |
7 |
Pressure Service Ports ........................................... |
15 |
Fresh Air Intake ........................................................ |
7 |
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Condensate Drain..................................................... |
7 |
Troubleshooting |
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Fan Blade Setting Dimension ................................. |
16 |
Installation Instructions |
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Refrigerant Charge ................................................. |
16 |
Wall Mounting Information ........................................ |
8 |
Pressure Tables ...................................................... |
17 |
Mounting the Unit ..................................................... |
8 |
Option Field Installed Accessories.......................... |
17 |
Wiring – Main Power .............................................. |
12 |
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Wiring – Low Voltage Wiring .................................. |
12 |
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Figures |
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Tables |
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Figure 1 |
Unit Dimensions...................................... |
5 |
Table 1 |
Electric Heat Table |
4 |
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Figure 2 |
Blower Damper Assembly |
7 |
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Table 2 |
Electrical Specifications |
6 |
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Figure 3 |
Mounting Instructions |
9 |
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Table 3 |
Thermostat Wire Size |
12 |
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Figure 4 |
Wall Mounting Instructions |
10 |
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Table 4 |
Wall Thermostats |
12 |
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Figure 5 |
Wall Mounting Instructions |
10 |
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Table 5 |
Fan Blade Dimensions |
16 |
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Figure 6 Common Wall Mounting |
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Table 6 |
Suction Line Temperatures |
16 |
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Instructions |
11 |
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Table 8 |
Recommended Operating Ranges |
16 |
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Figure 7 |
Low Voltage Wiring |
13 |
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Table 7 |
Indoor Blower Performance |
16 |
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Figure 8 Fan Blade Setting Dimensions |
16 |
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Table 9 |
Maximum ESP of Operation |
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Electric Heat Only ................................. |
16 |
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Table 10 |
Pressure Table - Cooling ...................... |
17 |
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Table 11 |
Optional Accessories ............................ |
17 |
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Manual |
2100-234I |
Page |
2 of 17 |
GETTING OTHER INFORMATION and PUBLICATIONS
These publications can help you install the air conditioner or heat pump. You can usually find 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 |
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Ventilating Systems |
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Standard for Warm Air Heating ........ |
ANSI/NFPA 90B |
and Air Conditioning Systems |
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Load Calculation for ............................ |
ACCA Manual J |
Residential Winter and |
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Summer Air Conditioning |
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Duct Design for ................................. |
ACCA Manual D |
Residential Winter and |
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Summer Air Conditioning |
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and Equipment Selection |
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For more information, contact these publishers:
ACCA |
Air Conditioning Contractors of America |
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1712 New Hampshire Avenue NW |
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Washington, DC 20009 |
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Telephone: (202) 483-9370 |
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Fax: (202) 234-4721 |
ANSI |
American National Standards Institute |
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11 West Street, 13th Floor |
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New York, NY 10036 |
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Telephone: (212) 642-4900 |
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Fax: (212) 302-1286 |
ASHRAE American Society of Heating, Refrigerating
and Air Conditioning Engineers, Inc.
1791 Tullie Circle, NE
Atlanta, GA 30329-2305
Telephone: (404) 636-8400
Fax: (404) 321-5478
NFPA |
National Fire Protection Association |
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Batterymarch Park |
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P.O. Box 9101 |
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Quincy, MA 02269-9901 |
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Telephone: (800) 344-355 |
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Fax: (617) 984-7057 |
Manufactured under the following U.S. patent numbers:
5,485,878; and 5,301,744
Manual 2100-234I
Page |
3 of 17 |
WALL MOUNT GENERAL INFORMATION
AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE
MODEL NUMBER
CAPACITY
12 - 1 Ton
WA 12 1 – A 00 X X X X X J
CONTROL MODULES
E - Low Ambient Control
J - Telecommunication
REVISIONS |
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COIL OPTIONS |
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COLOR OPTIONS |
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X - Standard Coils |
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KW |
X - Beige |
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VOLTS & PHASE |
4 - Buckeye Gray |
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00 |
- No KW |
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A - 230/208/60/1 |
VENTILATION OPTIONS |
OUTLET OPTIONS |
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02 |
- 2.2 KW |
X - Barometric Fresh Air |
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K - 115/60/1 |
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03 |
- 3.6 KW |
X - |
Front |
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Damper (Standard) |
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05 |
- 5.0 KW |
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B - Blank-off Plate |
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E - Economizer (Internal) - Fully FILTER OPTIONS |
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Modulating with Exhaust |
X - One Inch Throwaway |
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(Standard) |
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P - Two Inch Pleated |
TABLE 1
ELECTRIC HEAT TABLE
Models |
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WA121-A |
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WA121-K |
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WA121-G |
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240V |
208V |
120V |
240V |
220V |
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1 |
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1 |
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1 |
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1 |
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1 |
KW |
A |
BTU |
A |
BTU |
A |
BTU |
A |
BTU |
A |
BTU |
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02 |
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18.3 |
7,985 |
10.0 |
8,665 |
9.1 |
7,300 |
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03 |
15.0 |
12,760 |
13.0 |
9,705 |
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15.0 |
12,760 |
13.8 |
10,800 |
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05 |
20.8 |
17,540 |
18.1 |
13,275 |
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1 With blower watts included
Manual 2100-234I
Page 4 of 17
UNIT DIMENSIONS
FIGURE 1
FACTORY BUILT AT 5 INCHES
Manual 2100-234I
Page |
5 of 17 |
TABLE 2
ELECTRICAL HEAT SPECIFICATIONS
SINGLE CIRCUIT
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3 |
1 |
2 |
2 |
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Rated Volts |
No. Field |
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Maximum |
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Minimum |
External Fuse |
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and |
Power |
Circuit |
or Circuit |
Field Power |
Ground |
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Models |
Phase |
Circuits |
Ampacity |
Breaker |
Wire Size |
Wire Size |
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WA121-A00 |
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1 |
8 |
15 |
14 |
14 |
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A03 |
230/208-1 |
1 |
20 |
20 |
12 |
12 |
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A05 |
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1 |
27 |
30 |
10 |
10 |
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WA121-K00 |
115-1 |
1 |
17 |
25 |
10 |
10 |
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K02 |
1 |
25 |
30 |
10 |
10 |
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WA121-G00 |
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1 |
7 |
15 |
14 |
14 |
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G02 |
220-50-1 |
1 |
13 |
15 |
14 |
14 |
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G03 |
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1 |
20 |
20 |
12 |
12 |
Maximum size of the time delay fuse or HACR type circuit breaker for protection of field 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 field power conductors. Refer to the National Electrical Code (latest revision), article 310 for power conductor sizing.
CAUTION: When more than one field 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.
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 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 2100-234I
Page 6 of 17
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