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Summary of Contents for Bard H42A2-A
- Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGED AIR CONDITIONERS Models: H42A2-A H42L2-A H48A2-A H48L2-A H60A2-A H60L2-A Bard Manufacturing Company, Inc. Manual : 2100-585B Bryan, Ohio 43506 Supersedes: 2100-585A Date: 10-09-14 www.bardhvac.com Page 1 of 19...
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Page 2: Table Of Contents
CONTENTS Start Up Getting Other Information and Publications General .............. 13 Topping Off System Charge ........13 Wall Mount General Information Safety Practices ............13 Wall Mount Model Nomenclature ......4 Important Installer Note ........... 13 Shipping Damage ............. 4 High Pressure Switch .......... -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. You can usually find these THESE PUBLISHERS: 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 – CONTROL MODULES REVISIONS MODEL NUMBER (See Spec. Sheet) CAPACITY 42 - 3½ Ton VOLTS & PHASE COIL OPTIONS 48 - 4 Ton A - 230/208/60/1 X - Standard COLOR OPTIONS 60 - 5 Ton 1 - Phenolic Coated Evaporator X - Beige (Standard) -
Page 5: Duct Work
5/8 inch. Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG5 or RFG5 be installed when no return duct is used. -
Page 6: Installation Instructions
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 1. Two holes for the supply and return air openings WARNING must be cut through the wall as shown in Figure 2. 2. On wood frame walls, the wall construction must be Failure to provide the 1/4 inch clearance strong and rigid enough to carry the weight of the between the supply duct and a combustible unit without transmitting any unit vibration. -
Page 7: Figure 1 Unit Dimensions
FIGURE 1 Dimensions of Basic Unit for Architecural & Installation Requirements (Nominal) SUPPLY RETURN WIDTH DEPTH HEIGHT MODEL H42A H42L H48A 42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 19.10 31.66 30.00 32.68 26.94 34.69 32.43 3.37 43.00 23.88 10.00 1.44 16.00 1.88... -
Page 8: Figure 2 Mounting Instructions - H42, 48, 60
Manual 2100-585B Page 8 of 19... -
Page 9: Figure 3 Electric Heat Clearance
FIGURE 3 ELECTRIC HEAT CLEARANCE H42A2, H42L2, H48A2, H48L2, H60A2, H60L2 NOTE 1: SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4 INCH CLEARANCE TO COMBUSTIBLE SURFACES. WARNING A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. -
Page 10: Figure 4 Wall Mounting Instructions
FIGURE 4 WALL MOUNTING INSTRUCTIONS WALL STRUCTURE SEE FIGURE 3 – MOUNTING INSTRUCTIONS FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR DUCT OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING OPENING BOTTOM MOUNTING WOOD OR STEEL SIDING BRACKET. -
Page 11: Figure 6 Common Wall Mounting Installations
FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/ GRILLE RETURN AIR RETURN AIR OPENING W/ GRILLE... -
Page 12: Wiring - Main Power
WIRING – MAIN POWER “3” COM lockout alarm. “4” & “5” dirty filter alarm NC (normally closed). Refer to the unit rating plate for wire sizing information and “6” Used with MD4000 only; do not use for anything else! maximum fuse or circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. -
Page 13: Start Up
10. Never trap liquid R-410A in manifold sets, gauge TOPPING OFF SYSTEM CHARGE lines or cylinders. R-410A expands significantly If a leak has occurred in the system, Bard at warmer temperatures. Once a cylinder or line is Manufacturing recommends reclaiming, evacuating... -
Page 14: Condenser Fan Operation
START UP (Continued) High Pressure Switch and Lockout Sequence CONDENSER FAN OPERATION If the high pressure switch opens, the compressor Applies to H42, H48 and H60 models only. NOTE: contactor will de-energize immediately. The lockout timer Certain models may be equipped with a Low Ambient will go into a soft lockout and stay in soft lockout until Control (LAC), and if so equipped the condenser fan the high pressure switch closes and the delay on break... -
Page 15: Figure 7 Fan Blade Setting
TROUBLESHOOTING R-410A FAN BLADE SETTING DIMENSIONS Shown in Figure 7 is the correct fan blade setting for REFRIGERANT CHARGE proper air delivery across the outdoor coil. Refer to This unit was charged at the factory with the quantity of Table 1 for unit specific dimension. refrigerant listed on the serial plate. -
Page 16: Table 2 Cooling Pressure
TABLE 2 COOLING PRESSURE TABLE Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) 75° DB Low Side 62° WB High Side 80° DB Low Side H42A/L 67° WB High Side 85° DB Low Side 72° WB High Side 75°... -
Page 17: Table 3 Electrical Specifications H**A, H**L
TABLE 3 Electrical Specifications 1-Stage Compressor Models Single Circuit Dual Circuit Maximum Rated Field Minimum External Maximum Field MODEL Volts & Field Power Ground Wire Minimum Power Circuit Fuse or Ckt. External Power Ground Phase Wire Size Size Circuit Circuits Ampacity... -
Page 18: Table 4 Recommended Airflow
TABLE 4 RECOMMENDED AIRFLOW Rated Rated Recommended Factory Speed Model CFM * ESP * Airflow Range Connection H42A, H42L 1400 1600 - 1150 High H48A, H48L 1550 1750 - 1285 High H60A, H60L 1700 1950 - 1375 High * Rated CFM and ESP on high speed tap. TABLE 5 INDOOR BLOWER PERFORMANCE H42/48... -
Page 19: Table 7 Optional Accessories
TABLE 7 OPTIONAL ACCESSORIES EHWA05-A05 EHWA05-A10 EHWA05-A15 WMCB-08A TABLE 8 VENT & CONTROL OPTIONS Factory Installed Field Installed Option Number Part Number CMC-15 Start Kit (230V 1-Phase) BOP-5 Blank Off Plate EWM5-T* 100% Economizer Temperature EWM5-E* 100% Economizer Enthalpy 100% Economizer DC Temperature 100% Economizer DC Enthalpy Manual 2100-585B Page...
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