Bard W18A1 Installation Instructions Manual

Bard W18A1 Installation Instructions Manual

Wall mounted package air conditioners
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INSTALLATION INSTRUCTIONS
PACKAGE AIR CONDITIONERS
© Copyright 2008

WALL MOUNTED

MODELS
W18A1
W24A1
W30A1
W36A1
W42A1
W48A1
W60A1
W70A1
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
W18L1
W24L1
W30L1
W36L1
W42L1
W48L1
W60L1
W70L1
Manual :
Supersedes:
File:
Date:
2100-508A
2100-508
Volume III Tab 16
02-10-09
Manual
2100-508A
Page
1 of 25

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Summary of Contents for Bard W18A1

  • Page 1: Wall Mounted

    W24L1 W30A1 W30L1 W36A1 W36L1 W42A1 W42L1 W48A1 W48L1 W60A1 W60L1 W70A1 W70L1 Bard Manufacturing Company, Inc. Manual : 2100-508A Bryan, Ohio 43506 Supersedes: 2100-508 File: Volume III Tab 16 Since 1914...Moving ahead just as planned. Date: 02-10-09 Manual 2100-508A ©...
  • Page 2: Table Of Contents

    Contents Start Up Getting Other Information and Publications General .............. 15 Topping Off System Charge ........15 Wall Mount General Information Safety Practices ............. 15 Wall Mount Model Nomenclature ......4 Important Installer Note ......... 16 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 at THESE PUBLISHERS: 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 S3397) CAPACITY 18 - 1½ Ton VOLTS & PHASE COIL OPTIONS 24 - 2 Ton A - 230/208/60/1 X - Standard COLOR OPTIONS 30 - 2½...
  • Page 5: Duct Work

    Any grille that meets with 5/8 inch louver criteria may be top of the unit down to the unit base. There are used. It is recommended that Bard Return Air Grille Kit openings in the unit base for the drain hose to pass RG2 through RG5 or RFG2 through RFG5 be installed through.
  • 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 3. 2. On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the Failure to provide the 1/4 inch clearance unit without transmitting any unit vibration.
  • Page 7: Figure 2 Unit Dimensions

    FIGURE 2 All dimensions are in inches. Dimensional drawings are not to scale. W**A Built In 7.88 31.88 Rain Hood RIGHT 1.00 4° Pitch UNIT Heater 2.13 Access Panel Side Wall Supply Air Opening Mounting Electric Brackets Heat (Built In) C.
  • Page 8: Figure 3A Mounting Instructions

    Manual 2100-508A Page 8 of 25...
  • Page 9: Figure 3B Mounting Instructions - W18, 24, 30, 36

    Manual 2100-508A Page 9 of 25...
  • Page 10: Figure 3C Mounting Instructions - W42, 48, 60, 70

    Manual 2100-508A Page 10 of 25...
  • Page 11: Figure 4 Electric Heat Clearance

    FIGURE 4 ELECTRIC HEAT CLEARANCE W30A1, W30L1, W36A1, W36L1, W42A1, W42L1, W48A1, W48L1, W60A1, W60L1, W70A1, W70L1 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 12: Figure 5 Wall Mounting Instructions

    FIGURE 5 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 13: Figure 7 Common Wall Mounting Installations

    FIGURE 7 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 14: Wiring - Main Power

    WIRING – LOW VOLTAGE WIRING WIRING – MAIN POWER 230/208V, 1 phase and 3 phase equipment dual primary Refer to the unit rating plate for wire sizing information voltage transformers. All equipment leaves the factory and maximum fuse or “HACR” type circuit breaker wired on 240V tap.
  • Page 15: Start Up

    7. Never fill cylinders over 80% of total capacity. TOPPING OFF SYSTEM CHARGE 8. Store cylinders in a cool area, out of direct If a leak has occurred in the system, Bard Manufacturing sunlight. recommends reclaiming, evacuating (see criteria above), 9.
  • Page 16: Important Installer Note

    START UP (Continued) IMPORTANT INSTALLER NOTE PHASE MONITOR For improved start up performance wash the indoor coil All units with three phase scroll compressors are with a dish washing detergent. equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal. HIGH PRESSURE SWITCH The phase monitor in this unit is equipped with two LEDs.
  • Page 17: Sequence Of Operation

    Alarm Relay Output SEQUENCE OF OPERATION COOLING – Circuit R-Y makes at thermostat pulling Alarm terminal is output connection for applications in compressor contactor, starting the compressor and where alarm relay is employed. This terminal is outdoor motor. The G (indoor motor) circuit is powered whenever the compressor is locked out due to automatically completed on any call for cooling HPC or LPC sequences as described.
  • Page 18: Figure 8 Fan Blade Setting

    TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS REFRIGERANT CHARGE Shown in Figure 8 is the correct fan blade setting for The correct system R-410A charge is shown on the unit proper air delivery across the outdoor coil. Refer to rating plate. Optimum unit performance will occur with Table 1 for unit specific dimension.
  • Page 19: Table 3 Cooling Pressure

    TABLE 3 COOLING PRESSURE TABLE Air Temperature Entering Outdoor Coil °F Low side pressure ± 2 PSIG High side pressure ± 5 PSIG Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate charge weight.
  • Page 20: Table 4 Electrical Specifications W**A

    TABLE 4 Electrical Specifications — W**A Series i n i i n i t i u s t l t i u y t i . t k . r k s t i y t i . t k .
  • Page 21: Table 5 Electrical Specifications W**L

    TABLE 5 Electrical Specifications — W**L Series i n i i n i t i u s t l t i u y t i . t k . r k s t i y t i . t k .
  • Page 22: Table 6 Recommended Airflow

    TABLE 6 RECOMMENDED AIRFLOW f r i * Rated CFM and ESP on high speed tap. TABLE 7 INDOOR BLOWER PERFORMANCE — — — — — — — — — — — — TABLE 8 MAXIMUM ESP OF OPERATION ELECTRIC HEAT ONLY Values shown are for units equipped with standard 1-inch throwaway filter or 1-inch washable filter.
  • Page 23: Table 9 Electric Heat

    TABLE 9 ELECTRIC HEAT Manual 2100-508A Page 23 of 25...
  • Page 24: Table 10 Optional Accessories

    TABLE 10 OPTIONAL ACCESSORIES Manual 2100-508A Page 24 of 25...
  • Page 25: Table 11 Vent & Control Options

    TABLE 11 VENT & CONTROL OPTIONS l a i a l i a l i t l o l a i a l i l a i a l i a l i t l o a l i t l o l a i a l i l a i...

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