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INSTALLATION INSTRUCTIONS
PACKAGE AIR CONDITIONERS
© Copyright 2002
WALL MOUNTED
Model:
WA121
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914....Moving ahead just as planned.
Manual :
2100-234
Supersedes:
2100-234H
File:
Volume III Tab 16
Date:
08-01-07
Manual
2100-234
Page
I
I
1 of 17
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Summary of Contents for Bard WA121
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Page 1: Wall Mounted
INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS Model: WA121 Bard Manufacturing Company, Inc. Manual : 2100-234 Supersedes: 2100-234H Bryan, Ohio 43506 File: Volume III Tab 16 Since 1914..Moving ahead just as planned. Date: 08-01-07 Manual 2100-234 © Copyright 2002 Page... -
Page 2: Table Of Contents
CONTENTS Getting Other Informations and Publications Start Up Important Installer Note .......... 14 Wall Mount General Information Service Hints ............14 Air Conditioner Wall Mount Model Nomenclature ..4 High Pressure Switch ..........14 Shipping Damage ............. 6 Sequence of Operation ........... 14 General .............. -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION and PUBLICATIONS For more information, contact these These publications can help you install the air publishers: 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 ACCA Air Conditioning Contractors of America standard. -
Page 4: Wall Mount General Information
WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE – MODEL NUMBER CONTROL MODULES E - Low Ambient Control J - Telecommunication CAPACITY 12 - 1 Ton REVISIONS COIL OPTIONS COLOR OPTIONS X - Standard Coils X - Beige 4 - Buckeye Gray VOLTS &... -
Page 5: Figure 1 Unit Dimensions
Manual 2100-234 Page 5 of 17... -
Page 6: Shipping Damage
TABLE 2 ELECTRICAL HEAT SPECIFICATIONS 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. -
Page 7: Duct Work
FRESH AIR INTAKE DUCT WORK All duct work, supply and return must be properly sized All units are built with fresh air inlet slots punched in the service panel. for the design air flow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an If the unit is equipped with a fresh air damper assembly, excellent guide to proper sizing. -
Page 8: Installation Instructions
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 2. Locate and mark lag bolt locations, if desired. See Figure 3. 1. These units are secured by wall mounting brackets which secure the unit to the outside wall surface at 3. Hook top rain flashing under back bend of top. Top both sides. -
Page 9: Figure 3 Mounting Instructions
Manual 2100-234 Page 9 of 17... -
Page 10: Figure 4 Wall Mounting Instructions
FIGURE 4 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 - MOUNTING INSTRUCTIONS FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS Manual 2100-234 Page 10 of 17... -
Page 11: Figure 6 Common Wall Mounting
FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS Manual 2100-234 Page 11 of 17... -
Page 12: Wiring - Main Power
WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING 230/208, 1 phase equipment use dual primary voltage Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. transformers. All equipment leaves the factory wired on 240V tap. -
Page 13: Figure 7 Low Voltage Wiring
FIGURE 7 LOW VOLTAGE WIRING Manual 2100-234 Page 13 of 17... -
Page 14: Start Up
Recycling the wall thermostat resets the manual HIGH PRESSURE SWITCH lockout. The WA121 models are supplied with a remote reset Low Pressure Switch, Bypass and Lockout high pressure switch. If tripped, this pressure switch may Sequence be reset by turning the thermostat off then back on again. -
Page 15: Adjustments
ADJUSTMENTS PRESSURE SERVICE PORTS Adjustable Delay on Make and Delay on Break High and low pressure service ports are installed on all Timer units so that the system operating pressures can be observed. Pressure chart can be found later in the manual The potentiometer is used to select Delay on Break time covering all models. -
Page 16: Figure 8 Fan Blade Setting Dimensions
TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS TABLE 7 INDOOR BLOWER Show in Figure 8 is the correct fan blade setting PERFORMANCE dimension for proper air delivery across the outdoor coil. CFM @ 230V Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimension below be checked and blade adjusted in or out on the motor shaft accordingly. -
Page 17: Pressure Tables
TABLE 10 PRESSURE TABLE COOLING Air Temperature Entering Outdoor Coil TABLE 11 OPTIONAL FIELD INSTALLED ACCESSORIES Manual 2100-234 Page 17 of 17...