Bard WE121 User manual

Manual 2100-384B
Page 1 of 19
WALL MOUNTED
PACKAGE AIR CONDITIONERS
Model:
WE121
INSTALLATION INSTRUCTIONS
Manual : 2100-384B
Supersedes: 2100-384A
File: Volume III Tab 16
Date: 09-17-10
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
THIS MODEL USES REFRIGERANT R-407C
and IS FOR 50HZ OPERATION.

Manual 2100-384B
Page 2 of 19
CONTENTS
Getting Other Informations and Publications ......... 3
Wall Mount General Information
Air Conditioner Wall Mount Model Nomenclature..... 4
Shipping Damage ..................................................... 6
General..................................................................... 6
Duct Work................................................................. 6
Filters........................................................................ 6
Fresh Air Intake ........................................................ 7
Condensate Drain..................................................... 7
Installation Instructions
Wall Mounting Information........................................ 8
Proper Unit Placement ............................................. 8
Mounting the Unit ..................................................... 8
Wiring – Main Power .............................................. 13
Wiring – Low Voltage Wiring .................................. 13
Start Up
Important Installer Note .......................................... 14
Service Hints .......................................................... 14
High Pressure Switch ............................................. 14
Sequence of Operation........................................... 14
Compressor Control Module................................... 14
Adjustments ............................................................ 15
Pressure Service Ports........................................... 15
Troubleshooting
Fan Blade Setting Dimension ................................. 16
Refrigerant Charge ................................................. 16
Pressure Table........................................................ 17
Optional Field Installed Accessories....................... 17
R-407C Refrigerant
Service Procedure & Considerations...................... 18
Charging ................................................................. 18
Leaks ...................................................................... 18
Figures
Figure 1 Unit Dimensions...................................... 5
Figure 2 Blower Damper Assembly....................... 7
Figure 3 Mounting Instructions Using CSRG-1..... 9
Figure 4 Mounting Instructions............................ 10
Figure 5 Wall Mounting Instructions ....................11
Figure 6 Wall Mounting Instructions ....................11
Figure 7 Common Wall Mounting
Instructions ........................................... 12
Figure 8 Fan Blade Setting Dimensions ............. 16
Tables
Table 1 Electric Heat Table.................................. 4
Table 2 Electrical Specifications .......................... 4
Table 3 Fan Blade Dimensions.......................... 16
Table 4 Suction Line Temperatures ................... 16
Table 5 Indoor Blower Performance .................. 16
Table 6 Recommended Airflow Range .............. 16
Table 7 Maximum ESP of Operation
Electric Heat Only ................................. 16
Table 8 Pressure Table - Cooling ...................... 17
Table 9 Optional Accessories ............................ 17
Table 10 Temperature / Pressure Chart............... 19

Manual 2100-384B
Page 3 of 19
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/NFPA70
Standard for the Installation of .......... ANSI/NFPA90A
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: [phone]
Fax: [phone]
ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]
ASHRAE American Society of Heating, Refrigerating
and Air Conditioning Engineers, Inc.
1791 Tullie Circle, NE
Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]
NFPA National Fire Protection Association
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

Manual 2100-384B
Page 4 of 19
WALL MOUNT GENERAL INFORMATION
AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE
TABLE 2
ELECTRICALHEATSPECIFICATIONS
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dleiF.oN rewoP stiucriC

muminiM tiucriC yticapmA
1
mumixaM esuFlanretxE tiucriCro rekaerB
2
rewoPdleiF eziSeriW
2
dnuorG eziSeriW
00G-121EW 20G- 30G- 1/05/002/022 1
1
1
7
3102
515102 414121 414121
1Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.
2Based 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.
TABLE 1
ELECTRIC HEAT TABLE
ledoMG-121EW
V022V002
WKA
1
UTBA
1
UTB
201.9038,62.8051,6
307.31052,016.21041,9
WE 12 1 – G 00 X X X X X J
MODEL NUMBER REVISIONS CONTROL MODULES
E - Low Ambient Control
J - Telecommunication
VOLTS & PHASE
G - 220/200/50/1
KW
00 - No KW
02 - 2 KW
03 - 3 KW
VENTILATION OPTIONS
X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
E - Economizer (Internal) - Fully Modulating w/Exhaust
FILTER OPTIONS
X - One Inch Throwaway (Standard)
P - Two Inch Pleated
COLOR OPTIONS
X - Beige
4 - Buckeye Gray
OUTLET OPTIONS
X - Front
COIL OPTIONS
X - Standard Coils
CAPACITY
12 - 1 Ton

Manual 2100-384B
Page 5 of 19
FIGURE 1
UNITDIMENSIONS
FACTORY BUILT AT 5 INCHES
WE121