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Summary of Contents for Bard YL423
- Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS MODELS YL423 YL484 YL602 Manual : 2100-464A Supersedes: 2100-464 Date: 07-25-06 Manual 2100-464A © Copyright 2005 Page 1 of 20...
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Page 2: Table Of Contents
CONTENTS Start Up Getting Other Information and Publications Important Installer Note ......... 16 High Pressure Switch ..........16 Wall Mount General Information Three Phase Scroll Compressor Start Up ....16 Heat Pump Wall Mount Model Nomenclature ..4 Phase Monitor ............16 Shipping Damage ............ -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air For more information, contact these conditioner or heat pump. You can usually find these at 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 HEAT PUMP WALL MOUNT MODEL NOMENCLATURE – CONTROL MODEL NUMBER REVISIONS MODULES VOLTS & PHASE (See Chart Below) A - 230/208/60/1 CAPACITY COLOR OPTIONS B - 230/208/60/3 COIL OPTIONS 42 - 3½ Ton X - Beige (Standard) C - 460/60/3 X - Standard 48 - 4 Ton... -
Page 5: Figure 1 Unit Dimensions
Manual 2100-464A Page 5 of 20... -
Page 6: Table 2 Electrical Specifications
TABLE 2 ELECTRICAL SPECIFICATIONS & 1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75° C copper wire. All wiring must conform to NEC and all local codes. 3 These “Minimum Circuit Ampacity”... -
Page 7: Shipping Damage
Any grille that meets with 5/8 inch louver criteria may is made. See Page 3 for information on codes and be used. It is recommended that Bard Return Air Grille standards. Kit RG2 through RG5 or RFG2 through RFG5 be Size of unit for a proposed installation should be based installed when no return duct is used. -
Page 8: Filters
All capacity, efficiency and cost of operation FILTERS information as required for Department of Energy A 1-inch throwaway filter is supplied with each unit. “Energyguide” Fact Sheets is based upon the fresh air The filter slides into position making it easy to service. blank-off plate in place and is recommended for This filter can be serviced from the outside by removing maximum energy efficiency. -
Page 9: Installation Instructions
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION WARNING 1. Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3. 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 10: Figure 3 Mounting Instructions
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Page 11: Figure 4 Electric Heat Clearance
FIGURE 4 ELECTRIC HEAT CLEARANCE SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4 INCH CLEARANCE TO COMBUSTIBLE SURFACES. WARNING minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3 feet of ducting. -
Page 12: Figure 5 Wall Mounting Instructions
FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS FIGURE 6 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS Manual 2100-464A Page 12 of 20... -
Page 13: Figure 7 Common Wall Mounting Installations
FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-464A Page 13 of 20... -
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: Figure 8 Unit 24V Terminal Board
FIGURE 8 UNIT 24V TERMINAL BOARD Manual 2100-464A Page 15 of 20... -
Page 16: Start Up
START UP IMPORTANT INSTALLER NOTE PHASE MONITOR For improved start up performance wash the indoor coil All units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent with a dish washing detergent. compressor damage due to phase reversal. HIGH PRESSURE SWITCH The phase monitor in this unit is equipped with two LEDs. -
Page 17: Compressor Control Module
COMPRESSOR CONTROL MODULE NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high The compressor control module is standard on the pressure switch and low pressure switch cut out YL484 and YL602 models covered by this manual and and cut in settings are fixed by specific air is optional on the WL423 model. -
Page 18: Figure 9 Fan Blade Setting
TROUBLESHOOTING 3. Remove screws holding fan shroud to condenser and FAN BLADE SETTING DIMENSIONS bottom. Nine (9) screws. Shown in Figure 9 is the correct fan blade setting 4. Unwire condenser fan motor. dimension for proper air delivery across the outdoor coil. -
Page 19: Pressure Table
TABLE 8 TABLE 9 RECOMMENDED AIRFLOW MAXIMUM ESP OF OPERATION ELECTRIC HEAT ONLY f r i * Rated CFM and ESP on high speed tap. Values shown are for units equipped with standard 1 inch throwaway filter or 1 inch washable filter. Derate ESP by .15 for 2 inch pleated filters. -
Page 20: Optional Accessories
TABLE 11 OPTIONAL ACCESSORIES l a i i t n t a l & t i u l l u t i u t i u t i u Manual 2100-464A Page 20 of 20...