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Summary of Contents for Bard W12AAA
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Page 1: Wall Mounted
INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS Model: W12AAA Bard Manufacturing Company, Inc. Manual: 2100-618 Supersedes: Bryan, Ohio 43506 File: Tab 16 Since 1914..Moving ahead just as planned. Date: 06-04-14 Page 1 of 21... -
Page 2: Table Of Contents
CONTENTS Getting Other Informations and Publications ..3 Start Up Requirements: R-410A ..........17 Wall Mount General Information Important Installer Note ........... 18 Air Conditioner Wall Mount Model Nomenclature ..4 Service Hints ............18 Shipping Damage ............. 6 High & Low Pressure Switch ........18 General .............. -
Page 3: Getting Other Informations 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 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 MODEL CONTROL NUMBER MODULES X - Standard Low Pressure Switch, CAPACITY High Pressure Switch, Compressor 12 - 1 Ton Control Module E - X + Low Ambient Control AIR CONDITIONER J - X + Low Ambient Control and 1 STAGE Alarm Relay... -
Page 5: Figure 1 Unit Dimensions
FIGURE 1 UNIT DIMENSIONS 32.00 30.13 17.00 5.00 5.00 10.00 TOP RAIN FLASHING SHIPPING LOCATION 22.25 25.750 OPTIONAL ELECTRICAL ENTRANCE DRAIN HOSE BACK VIEW 2.50 31.06 14.63 BUILT-IN RAIN HOOD 2° PITCH HEATER & FILTER ACCESS 1.50 19.72 VENTILATION 48.00 ELECTRICAL LOW VOLTAGE ENTRANCE... -
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 W12AAAA0Z 230/208-1 W12AAAK00 115-1 W12AAAD00 240/220-1 j Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. -
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 lag 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
FIGURE 3 MOUNTING INSTRUCTIONS SEAL WITH BEAD OF CAULKING RAIN FLASHING ALONG ENTIRE LENGTH OF TOP. SUPPLIED FOAM AIR SEAL WALL WALL STRUCTURE SUPPLY AIR DUCT 17.000 7.031 7.031 2.500 RETURN AIR OPENING 5.000 19.719 10.000 5.000 6.969 17.000 19.719 NOTE: IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING... -
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 2100-618 Page 10 of 21... -
Page 11: Figure 6 Common Wall Mounting Installations
FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-618 Page 11 of 21... -
Page 12: Wiring - Main Power
WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING Refer to the unit rating plate for wire sizing information 230/208, 1 phase equipment use dual primary voltage and maximum fuse or “HACR” type circuit breaker size. transformers. All equipment leaves the factory wired on Each outdoor unit is marked with a “Minimum Circuit 240V tap. -
Page 13: Basic A/C With Optional Electric Heat No Economizer Or Ventilation Packages
Low Voltage Connection These units use a 24-volt AC low voltage circuit. The “R” terminal is the hot terminal and the “C” terminal is grounded. “G” terminal is the fan input. “Y” terminal is the compressor input for cooling 1-Stage units only or 2-Stage units with ECONWM* “Pink Wire”... -
Page 14: Ac With Programmable Thermostat
FIGURE 8 LOW VOLTAGE WIRING LOW VOLTAGE WIRING A/C WITH PROGRAMMABLE THERMOSTAT AC WITH PROGRAMMABLE THERMOSTAT 8403-060 ELECTRONIC W1/E YO/D THERMOSTAT PROGRAMABLE OPTIONAL 8403-067 CO2 CONTROLLER UNIT 24V TERMINAL BLOCK YELLOW/RED BLACK BROWN/WHITE OPTIONAL VENT PACKAGE MIS-3597 REMOVE JUMPER FOR 2 STAGE ELECTRIC HEAT ON UNITS WITH 15 OR MORE KW DO NOT CONNECT "A"... -
Page 15: Ac With Non-Programmable Thermostat
FIGURE 9 LOW VOLTAGE WIRING LOW VOLTAGE WIRING A/C WITH NON-PROGRAMMABLE THERMOSTAT AC WITH NON-PROGRAMMABLE THERMOSTAT 1 STAGE COOL 8403-057 Rc R 1 STAGE HEAT (TH3110D1040) THERMOSTAT OPTIONAL 8403-067 CO2 CONTROLLER 2 STAGE COOL 8403-058 Rc R 2 STAGE HEAT (TH5220D1151) THERMOSTAT UNIT 24V... -
Page 16: Figure 10 Low Voltage Wiring
FIGURE 10 LOW VOLTAGE WIRING 1-STAGE A/C WITH OPTIONAL ELECTRIC HEAT WITH ECONWM STYLE ECONOMIZER Low Voltage Wiring Diagram 8403-058 (TH5220D1151) Thermostat YO/D W1/E part #8403-060 A/C UNIT 24V TERMINALS BROWN/WHITE Economizer Wiring Harness Must be energized to enable minimum position. NOTE: Economizer Control Default Setting is 10V (100%). -
Page 17: Start Up
9. Never heat cylinders above 125°F. TOPPING OFF SYSTEM CHARGE 10. Never trap liquid R-410A in manifold sets, gauge If a leak has occurred in the system, Bard Manufacturing lines or cylinders. R-410A expands significantly at recommends reclaiming, evacuating (see criteria above), warmer temperatures. -
Page 18: Important Installer Note
Regardless the state of the low pressure switch, the contactor will reenergize after The W12AAA models are supplied with a remote reset the delay on make time delay has expired. If the low high and low pressure switch. If tripped, this pressure... -
Page 19: 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 20: Figure 11 Fan Blade Setting Dimensions
FAN BLADE SETTING DIMENSIONS TABLE 6 INDOOR BLOWER PERFORMANCE Shown in Figure 7 is the correct fan blade setting dimension for proper air delivery across the outdoor coil. W12AAA E.S.P. 230V/115V-60Hz 240V-50Hz Any service work requiring removal or adjustment in... -
Page 21: Pressure Table
TABLE 9 PRESSURE TABLE COOLING Air Temperature Entering Outdoor Coil °F Return Air Model Pressure 75° 80° 85° 90° 95° 100° 105° 100° 115° 120° Temperature 75 deg. DB Low Side 62 deg. WB High Side W12AAAA 80 deg. DB Low Side W12AAAK 67 deg.
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