Related Manuals for Bard YA253
Summary of Contents for Bard YA253
- Page 1 WALL MOUNTED PACKAGED INSTALLATION AIR CONDITIONER INSTRUCTIONS : YA253 Model MIS-383 Manual No.: 2100-460 Supersedes: Date: 06-20-05 © Copyright 2005...
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Page 2: Table Of Contents
CONTENTS Start Up .............. 11 Getting Other Information ........1 Important Installer Note ........11 Wall Mount General Information ......2 High Pressure Switch ........... 11 Model Nomenclature ..........2 Three Phase Scroll Compressor Start Up ..... 11 Shipping Damage ........... 4 Phase Monitor ............ -
Page 3: Getting Other Information
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 MODULES J - Standard on All Models COIL OPTIONS CAPACITY VOLTS & PHASE X - Standard 25 - 2 Ton w/scroll COLOR OPTIONS A - 230/208/60/1 1 - Phenolic Coated Evaporator compressor X - Beige (Standard) -
Page 5: Figure 1 Unit Dimensions
Manual 2100-460 Page... -
Page 6: Shipping Damage
TABLE 2 ELECTRIC HEAT TABLE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 7: Filters
Any grille that meets the 5/8 inch louver criteria may be maximum energy efficiency. used. It is recommended that Bard Return Air Grille Kit The blank-off plate is available upon request from the RG-2 through RG-5 or RFG-2 through RFG-5 be factory and is installed in place of the fresh air damper installed when no return duct is used. -
Page 8: Installation Instructions
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 3. Mount bottom mounting bracket, if used. 4. Hook top rain flashing under back bend of top. Top 1. These units are secured by wall mounting brackets rain flashing is shipped attached to the back of the which secure the unit to the outside wall surface at unit on the right side. -
Page 9: Figure 4 Wall-Mounting Instructions
FIGURE 4 WALL-MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS FOR OPENING SIZES MIS-548 FIGURE 5 WALL-MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS FIGURE 1 FOR ACTUAL DIMENSIONS MIS-549 Manual 2100-460 Page... -
Page 10: Figure 6 Common Wall-Mounting Instructions
FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS MIS-550 Manual 2100-460 Page... -
Page 11: Wiring - Main Power
WIRING — MAIN POWER WIRING — LOW VOLTAGE WIRING 230/208V – 1 phase and 3 phase equipment dual Refer to the unit rating plate for wire sizing information primary voltage transformers. All equipment leaves the and maximum fuse or “HACR" type circuit breaker factory wired on 240V tap. -
Page 12: Figure 7 Low Voltage Wiring Diagram
FIGURE 7 LOW VOLTAGE WIRING DIAGRAM Manual 2100-460 Page... -
Page 13: Start Up
HIGH PRESSURE SWITCH All units with three phase compressors are equipped with a 3 phase line monitor to prevent compressor The YA253 models are supplied with a remote reset damage due to phase reversal. high pressure switch. If tripped, this pressure switch... -
Page 14: Compressor Control Module
COMPRESSOR CONTROL MODULE Alarm Relay Output The compressor control module is optional on the Alarm terminal is output connection for applications models covered by this manual. The compressor control where alarm relay is employed. This terminal is is an anti-short cycle/lockout timer with high and low powered whenever compressor is locked out due to HPC pressure switch monitoring and alarm relay output. -
Page 15: Figure 8 Fan Blade Setting
TROUBLESHOOTING TABLE 6 FAN BLADE SETTING DIMENSIONS SUCTION LINE TEMPERATURES Shown in the drawing below are the correct fan blade setting dimensions for proper air delivery across the ° 5 ° 2 outdoor coil. f r i Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly. -
Page 16: Cooling Pressures
TABLE 10 COOLING PRESSURE – OUTDOOR TEMPERATURE °F ± Low side pressure 2 PSIG ± High side pressure 5 PSIG Table based upon rated CFM (airflow) across the evaporator coil and should be found under section titled “Refrigerant Charge” elsewhere in manual. 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 instructions.