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Related Manuals for Bard W12A2-A
Summary of Contents for Bard W12A2-A
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Page 1: Wall Mounted
INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS Model: W12A2-A W12A1-K Bard Manufacturing Company, Inc. Manual: 2100-509E Bryan, Ohio 43506 Supersedes: 2100-509D File: Volume III Tab 16 Since 1914..Moving ahead just as planned. Date: 08-20-12 Manual 2100-509E Page 1 of 17... -
Page 2: Table Of Contents
CONTENTS Getting Other Informations and Publications Start Up Requirements: R-410A ..........13 Wall Mount General Information Important Installer Note ..........14 Air Conditioner Wall Mount Model Nomenclature ..4 Service Hints ............14 Shipping Damage ............6 High & Low Pressure Switch ........14 General ..............6 Sequence of Operation ..........14 Duct Work ..............7 Compressor Control Module ........14... -
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 REVISIONS CONTROL CAPACITY MODULES 12 - 1 Ton E - Low Ambient Control J - Telecommunication VOLTS & PHASE CONDITIONER A - 230/208/60/1 00 - No KW COIL OPTIONS K - 115/60/1 02 - 2.2 KW... -
Page 5: Figure 1 Unit Dimensions
FIGURE 1 UNIT DIMENSIONS 32.00 30.13 17.00 17.00 2.25 Supply Air Supply Air 5.00 5.00 Opening Opening 2.00* 5.00* Return Air 10.00 Opening Return Air 10.00 Opening Top Rain Flashing Shipping Location Optional Electrical 26.75 Entrance 23.75 20.25 Side Wall Mounting Flanges (Built In) Back View Back View... -
Page 6: Shipping Damage
TABLE 2 ELECTRICAL HEAT SPECIFICATIONS SINGLE CIRCUIT Rated Volts No. Field Maximum Minimum Models Power External Fuse Field Power Ground Circuit Phase Circuits or Circuit Wire Size Wire Size Ampacity Breaker W12A2-A00 230/208-1 W12A1-K00 115-1 j Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. Based on 75°C copper wire. -
Page 7: Duct Work
FRESH AIR INTAKE DUCT WORK All units are built with fresh air inlet slots punched in the All duct work, supply and return must be properly sized for the design air flow requirement of the equipment. service panel. Air Conditioning Contractors of America (ACCA) is If the unit is equipped with a fresh air damper assembly, an excellent guide to proper sizing. -
Page 8: Installation Instructions
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 4. Position unit in opening and secure with 5/16 lag bolts; use 7/8 inch diameter flat washers on the lab 1. These units are secured by wall mounting brackets bolts. which secure the unit to the outside wall surface at 5. -
Page 9: Figure 3 Mounting Instructions
Manual 2100-509E 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 2100-509E Page 10 of 17... -
Page 11: Figure 6 Common Wall Mounting
FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS Manual 2100-509E Page 11 of 17... -
Page 12: Wiring - Main Power
WIRING – LOW VOLTAGE WIRING WIRING – MAIN POWER 230/208, 1 phase equipment use dual primary voltage Refer to the unit rating plate for wire sizing information transformers. All equipment leaves the factory wired on and maximum fuse or “HACR” type circuit breaker size. 240V tap. -
Page 13: Start Up
TOPPING OFF SYSTEM CHARGE 9. Never heat cylinders above 125°F. If a leak has occurred in the system, Bard Manufacturing 10. Never trap liquid R-410A in manifold sets, gauge recommends reclaiming, evacuating (see criteria above), lines or cylinders. R-410A expands significantly at and charging to the nameplate charge. -
Page 14: Important Installer Note
START UP IMPORTANT INSTALLER NOTE During routine operation of the unit with no power interruptions the compressor will operate on demand For improved start up performance, wash the indoor coil with no delay. with a dishwasher detergent. High Pressure Switch and Lockout Sequence SERVICE HINTS If the high pressure switch opens, the compressor 1. -
Page 15: Adjustments
ADJUSTMENTS PRESSURE SERVICE PORTS Adjustable Delay on Make and Delay on Break High and low pressure service ports are installed on Timer all 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 7 Fan Blade Setting Dimensions
TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS TABLE 4 INDOOR BLOWER Shown in Figure 7 is the correct fan blade setting PERFORMANCE dimension for proper air delivery across the outdoor coil. CFM @ 230V / 115V Any service work requiring removal or adjustment in W12Aà... -
Page 17: Pressure Table
TABLE 7 PRESSURE TABLE COOLING Air Temperature Entering Outdoor Coil °F Return Air Model Pressure 75° 80° 85° 90° 95° 100° 105° 100° 115° Temperature 75 deg. DB Low Side 62 deg. WB High Side 80 deg. DB Low Side W12Aà...