Bard W18AY-A Installation Instructions Manual

Wall mount, right/left hand 11eer
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INSTALLATION INSTRUCTIONS
Wall Mount Air Conditioner
W18AY-A
W18LY-A
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
11EER WA Series
Right Hand Models:
W24AY-A
W24AY-B
W24AY-C
W24AY-D
W24AY-F
Left Hand Models:
W24LY-A
W24LY-B
W24LY-F
W30AY-A
W30AY-B
W30AY-C
W30AY-D
W30AY-F
W30AYDA
W30AYDB
W30AYDC
W30LY-A
W30LY-B
W30LY-C
W30LY-F
Manual:
Supersedes: 2100-789B
Date:
W36AY-A
W36AY-B
W36AY-C
W36AYRC
W36AY-D
W36AY-E
W36AY-F
W36AYDA
W36AYDB
W36AYDC
W36AYDV
W36LY-A
W36LY-B
W36LY-C
W36LYRC
W36LY-F
2100-789C
5-7-24
Page
1 of 50

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  • Page 1 W36AYDA W30AYDB W36AYDB W30AYDC W36AYDC W36AYDV Left Hand Models: W24LY-A W18LY-A W30LY-A W36LY-A W24LY-B W30LY-B W36LY-B W24LY-F W30LY-C W36LY-C W30LY-F W36LYRC W36LY-F Bard Manufacturing Company, Inc. Manual: 2100-789C Bryan, Ohio 43506 Supersedes: 2100-789B Date: 5-7-24 www.bardhvac.com Page 1 of 50...
  • Page 2: Table Of Contents

    CONTENTS Safety Instructions ..........4 Start Up ..............29 General ............. 29 General Information ..........10 Topping Off System Charge ......... 29 General ............. 10 Safety Practices ..........29 Shipping Damage ..........10 Important Installer Note ........29 Additional Publications ........10 High Pressure Switch ..........
  • Page 3 TABLES FIGURES Table 1 Clearance Required for Service Access Figure 1 Fresh Air Damper ........ 12 and Adequate Condenser Airflow ..16 Figure 2 Unit Dimensions ......... 17 Table 2 Minimum Clearances Required to Figure 3A Mounting Instructions ..18 –...
  • Page 4: Safety Instructions

    SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages. ANSI Z535.5 Definitions: DANGER: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury.
  • Page 5 WARNING CAUTION Electrical shock hazard. Sharp metallic edges. Have a properly trained individual perform Take care and wear appropriate protective these tasks. devices to avoid accidental contact with sharp edges. Failure to do so could result in electric shock or death. Failure to do so can result in personal injury.
  • Page 6: Operation

    IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of explosion, fire, death, electric shock, scalding or injury to persons when using this product, follow basic precautions, including the following: GENERAL · The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.
  • Page 7 INSTRUCTIONS DE SÉCURITÉ LIRE TOUTES LES INSTRUCTIONS AVANT UTILISATION Votre sécurité et celle des autres sont très importantes. Nous avons fourni de nombreux messages de sécurité importants dans ce manuel et sur votre appareil. Lisez et suivez toujours tous les messages de sécurité. Définitions ANSI Z535.5 : DANGER : Indique une situation dangereuse qui, si elle n’est pas évitée, entraînera certainement la mort ou des blessures graves.
  • Page 8 AVERTISSEMENT ATTENTION Risque de choc électrique. Arêtes métalliques vives. Ces tâches doivent être réalisées par une Faites attention et portez des dispositifs de personne parfaitement qualifiée et formée. protection appropriés pour éviter tout contact accidentel avec des arêtes vives. Le non-respect de cette consigne peut entraîner des chocs électriques ou la mort.
  • Page 9: Instructions De Sécurité Importantes

    INSTRUCTIONS DE SÉCURITÉ IMPORTANTES AVERTISSEMENT Pour réduire le risque d’explosion, d’incendie, de décès, de choc électrique, d’échaudure ou de blessures pour les personnes lors de l’utilisation de ce produit, suivez les précautions de base, notamment les suivantes : GÉNÉRALITÉS · L’équipement couvert dans ce manuel doit être installé par des techniciens de service et d’installation formés et expérimentés.
  • Page 10: General Information

    GENERAL INFORMATION General Additional Publications The equipment covered in this manual is to be installed These publications can help when installing the air by trained, experienced service and installation conditioner. They can usually be found at the local technicians. library or purchased directly from the publisher. Be sure to consult the current edition of each standard.
  • Page 11: Air Conditioner Wall Mount Model Nomenclature

    Air Conditioner Wall Mount Model Nomenclature – MODEL SERIES CONTROL X – None (Standard) CAPACITY E – Low Ambient Control 18 – 1½ Ton F – Filter Replacement Pressure 24 – 2 Ton Switch, Alarm Relay & Low 30 – 2½ Ton Ambient Control 36 –...
  • Page 12: Duct Work

    FIGURE 1 Any grille that meets with 5/8" louver criteria may Fresh Air Damper be used. It is recommended that Bard Return Air Grille Kits RG2 through RG3 or RFG2 through RFG3 be installed when no return duct is used. Contact distributor or factory for ordering information.
  • Page 13: Installation

    Make sure that the service Bard recommends at least 2' between solid objects panels of the unit are accessible. Inspect wall surfaces and return grilles or registers. Ductwork may be used to...
  • Page 14: Ducted Applications

    5/8". It is recommended that a airflow requirement of the equipment. Air Conditioning Bard Return Air Grille Kit is installed that is designed Contractors of America (ACCA) is an excellent guide specifically for the wall mount product. Contact the to proper sizing.
  • Page 15: Wall Preparation

    • Appropriate safety gear including gloves and safety 2. Locate and mark bolt hole locations and bottom glasses mounting bracket location. Install bottom mounting bracket with field-supplied fasteners to • 5/16" hex bit with drill driver wall if it is to be used (optional). Bracket must be •...
  • Page 16: Clearance Required For Service Access And Adequate Condenser Airflow

    TABLE 1 Clearance Required for Service Access and Adequate Condenser Airflow Left Right Discharge Model Side Side Side W18A W24A 15" 20" W30A W36A W18L W24L 20" 15" W30L W36L NOTE: For side-by-side installation of two W**A models, there must be 20" between units. This can be reduced to 15"...
  • Page 17: Figure 2 Unit Dimensions

    FIGURE 2 Unit Dimensions Supply Return Width Depth Height W18*Y 33.300 17.125 74.563 7.88 19.88 11.88 19.88 35.00 10.88 29.75 20.56 30.75 32.06 33.25 31.00 2.63 34.13 26.06 10.55 3.94 12.00 9.00 W24*Y W30*Y 38.200 17.125 74.563 7.88 27.88 13.88 27.88 40.00 10.88 29.75 17.93 30.75 32.75 33.25 31.00 2.75 39.13 26.75 9.14 3.94 12.00 9.00 W36*Y All dimensions are in inches.
  • Page 18 Manual 2100-789C Page 18 of 50...
  • Page 19 Manual 2100-789C Page 19 of 50...
  • Page 20 FIGURE 4 Electric Heat Clearance – All Models Typical Building Wall Frame Outside Sheeting Inside Sheeting Supply Air Unit Duct 1/4" Min. Supply Air Duct See Note Below Flange of Wall Note: Side section view of supply air duct for wall mounted unit showing 1/4"...
  • Page 21 FIGURE 5 Wall Mounting Instructions See Figures 3A and 3B Mounting Instructions WALL STRUCTURE 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...
  • Page 22 FIGURE 7 Common Wall Mounting Installations Non-Ducted Installations Ducted Installations Unit is Unit is Ceiling Ceiling sealed to sealed to wall. wall. Supply Air Duct Adjustable Supply Grille Optional Dropped Ceiling Wall Wall Mount Mount Fixed Blade Unit Unit Fixed Blade Return Grille Return Grille Indoor Area Indoor Area...
  • Page 23: Wiring - Main Power

    Wiring – Main Power in the bottom left-hand corner of the disconnect opening under the disconnect access panel straight out. This tab will now line up with the slot in the door. WARNING When shut, a padlock may be placed through the hole in the tab preventing entry.
  • Page 24: Unit Shutdown Feature

    TABLE 3 back to the selected speed. See pages 32 – 34 for blower speed selection options. Additional Low Voltage Connections (if applicable) Refer to page 30 for additional Balanced Climate Terminal Unit Description requirements and limitations. Dehumidification Feature (Optional) V Control Discharge Air Sensor, Option Only...
  • Page 25: Dirty Filter Switch Indicator (Dfs)

    TABLE 4 controller. The DDC controls option contains the following installed components: Low Voltage Connections for DDC Control Dirty Filter Switch Indicator (DFS) Units w/ Standard Units The switch is adjustable and measures pressure drop Economizers across the unit filter surface. When pressure drop is higher than the switch setting, NO contacts are provided Fan Only Energize G...
  • Page 26: Table 6

    TABLE 6 Thermostat Wire Size Maximum Transformer Wire Gauge Distance In Feet 18 gauge 16 gauge 14 gauge 12 gauge TABLE 7 Humidity Controls Part Number Predominate Features 8403-100* Electronic humidistat DPST (H6062A1000) Humidity range 10-90% with adjustable stops 8403-047 Electronic dehumidistat SPST, closes-on-rise (H200-10-21-10) Humidity range 10-90% with adjustable stops...
  • Page 27: Figure 8 Programmable Thermostat Connections

    FIGURE 8 Programmable Thermostat Connections Completestat Model #CS9B-THOA or Model #CS9BE-THOA W1/E Thermostat W1/E YO/D Bard #8403-060 Optional CO2 Controller Bard Part #8403-096 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 Voltage Term. Strip 12-Pin Vent Plug MIS-3974 ALL VENT OPTIONS PLUG IN HERE If not equipped with a ventilation option to plug in, a jumper plug must be installed.
  • Page 28 Mechanical Humidistat T4 Pro 8403-089 8403-047 T6 Pro 8403-090 ELECTRONIC HUMIDISTAT 8403-092 U/DEH U/DEH 8403-100 ELECTRONIC HUMIDISTAT Optional CO2 Controller Bard Part #8403-096 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 Voltage Term. Strip 12-Pin Vent Plug MIS-3975 F ALL VENT OPTIONS PLUG IN HERE If not equipped with a ventilation option to plug in, a jumper plug must be installed.
  • Page 29: Start Up

    All W**A/W**L wall-mounted air conditioner series Topping Off System Charge models are supplied with a remote reset for the high If a leak has occurred in the system, Bard and low pressure switch. If tripped, the pressure switch Manufacturing recommends reclaiming, evacuating...
  • Page 30: Phase Monitor

    If the unit is being installed with any ventilation package, operating pressure builds up. After starting, the fan a Bard LAC kit must be installed. Failure to utilize an motor may or may not cycle depending upon ambient LAC with any air conditioner can cause coil freeze up.
  • Page 31: Vent Connection Plug

    Consult Bard Application Engineering for for the delay-on-break time. If the switch closes again, details prior to implementation. it will then restart the compressor. If the switch trips again during the same Y call, the compressor will be CAUTION: Balanced Climate is not a replacement for...
  • Page 32: Pressure Service Ports

    FIGURE 10 Compressor Control Module High Pressure Switch Compressor Contactor Output 18-30 VAC Input Alarm Output Y Input from Thermostat Common and High Pressure Switch Troubleshooting Light Delay-on-Break Time Adjustment Potentiometer (default setting: 2 minutes) Low Pressure Switch Brownout "Ignore Time" DIP Switches* * Turn on only one switch for that specific "Ignore Time"...
  • Page 33: Service

    If the Motor Is Running higher than allowed, additional duct work is NOTE: Bard Models PA13242; PA13302; PA13362-A, -B; PA13422-A, -B, -C; PA13482-A, -B, -C; PA13602-A, -B, -C needed. 1. It is normal for the motor to rock back and forth contain the X13-Series Motors.
  • Page 34: Model Selectech Communication Diagnostics

    TROUBLESHOOTING GE X13-SERIES ECM2.3 ™ MOTORS CONT’D. 2. Initiate a demand from the thermostat and check the Model X13 Communication Diagnostics 2. If the motor has proper high voltage and ground at A. If the low voltage communication is not voltage between the common and the appropriate motor The X13 motor is communicated through 24 VAC low voltage the L/L1, G, N/L2 connections, then continue with...
  • Page 35: Fan Blade Setting Dimensions

    Fan Blade Setting Dimensions R-410A Refrigerant Charge Shown in Figure 13 is the correct fan blade setting This unit was charged at the factory with the quantity of for proper air delivery across the outdoor coil. Refer to refrigerant listed on the serial plate. AHRI capacity and Table 9 for unit specific dimension.
  • Page 36: Table 10

    TABLE 10 Cooling Pressure – Standard Airflow Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side W18A/L 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side W24A/L 80/67...
  • Page 37: Table 12 Electrical Specifications W**Ay

    TABLE 11 Cooling Pressure – Balanced Climate Airflow Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side W18A/L 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side W24A/L 80/67...
  • Page 38: Table 12

    TABLE 12 Electrical Specifications − W**AY Series Single Circuit Multiple Circuit   Rated Maximum No. Field  Minimum Volts External Fuse  Maximum Model Power Circuit Minimum & or Circuit Circuits External Fuse Ampacity Circuit Phase Breaker or Circuit Ampacity Breaker Ckt.
  • Page 39: Table 13

    TABLE 13 Electrical Specifications − W**LY Series Single Circuit Multiple Circuit   Rated Maximum No. Field  Minimum Volts External Fuse Model Power Maximum  Circuit & or Circuit Minimum External Fuse Circuits Ampacity Phase Breaker Circuit Ampacity or Circuit Breaker Ckt.
  • Page 40: Setting Unit Airflow

    MED. thermostat or other controlling device. Each speed tap is programmed by Bard at the factory to different motor Speed Tap 5: Optional HI cooling & heating speed. torque settings (see Figure 14).
  • Page 41: Speed Tap 1 - Vent/Blower Only

    TABLE 15 Blower Speeds for Unit Operational Modes Thermostat Inputs – 24VAC Speed Taps Unit Compressor Blower Speed Operation Operation 3-4-5 Blower Only Vent/Blower Only Balanced Climate Cooling Balanced Climate Full Load Cool Lo/Med/Hi 1st Stage Heat Lo/Med/Hi 2nd Stage Heat Lo/Med/Hi Dehumidify Balanced Climate...
  • Page 42: Dirty Filter Switch

    Dirty Filter Switch Dirty Filter Switch Adjustment 1. Apply power to the unit. 1. Disconnect all power to the unit. Remove control panel outer cover and upper front panel. 2. Turn the unit indoor blower on (energize R-G on low voltage terminal board). 2.
  • Page 43 FIGURE 17 Adjusting Dirty Filter Switch TURN CLOCKWISE TO INCREASE RESTRICTION AMOUNT REQUIRED TO ACTIVATE THE SWITCH AND COUNTER-CLOCKWISE TO DECREASE RESTRICTION AMOUNT MIS-4086 B Manual 2100-789C Page 43 of 50...
  • Page 44: Table 16

    TABLE 16 Indoor Blower Performance Default LO Optional MED Balanced Climate Optional HI Cooling Cooling & Heating/ Cooling & Heating E.S.P. Speed & Heating Speed Ventilation Speed Speed (In. H Dry Coil Wet Coil Dry Coil Wet Coil Dry Coil Wet Coil Dry Coil Wet Coil...
  • Page 45: Table 17

    TABLE 17 Maximum ESP of Operation Electric Heat Only Model W18A/L W24A/L W30A/L W36A/L -A05 -A08 -A10 -A15 -B05 -B09 -B15 -C05 -C09 -C15 Values shown are for units equipped with 2" pleated MERV 13 filter. TABLE 18 Electric Heat Total KW and BTUH @ Field-Supplied Voltage Electric Nominal...
  • Page 46: Table 19

    TABLE 19 Vent and Control Options Part Number Description CMA-14 CMC-15 Start Kit (230V 1-Phase) CMC-31 Dirty Filter Sensor Kit CMC-34 Alarm Relay CMC-36 Crankcase Heater (230V) CMC-37 Crankcase Heater (460V CMA-37 LAC - Modulating (230V) CMA-38 LAC - Modulating (460V) CMA-40 CMA-41 LAC - On/Off...
  • Page 47: Table

    TABLE 20A Optional Accessories – Right Hand EHWA018A-A05 EHWA018A-A08 EHWA018A-A10 EHWA024A-A05 EHWA024A-B05 EHWA024A-C05 EHWA030A-A05 EHWA030A-A10 EHWA030A-A15 EHWA030A-B09 Heater Kits EHWA030A-B15 EHWA030A-C05 EHWA030A-C09 EHWA030A-C15 EHWA036A-A15 EHWA036A-B05 EHWA036A-B15 EHWA036A-C05 EHWA036A-C09 EHWA036A-C15 WMCB-02A WMCB-03A Circuit Breaker WMCB-04A (WMCB) WMCB-05A WMCB-02B Pull Disconnect (WMPD) WMCB-03B WMPD-01C Manual 2100-789C...
  • Page 48: Table

    TABLE 20B Optional Accessories – Left Hand EHWL018A-A05 EHWL018A-A10 EHWL024A-A05 EHWL024A-B05 EHWL030A-A05 EHWL030A-A10 EHWL030A-A15 Heater Kits EHWL030A-B09 EHWL030A-B15 EHWL030A-C09 EHWL030A-C15 EHWL036A-A15 EHWL036A-B15 EHWL036A-C09 EHWL036A-C15 WMCB-02AL WMCB-03AL Circuit Breaker WMCB-04AL (WMCB) WMCB-05AL Pull Disconnect WMCB-02BL (WMPD) WMCB-03BL WMPD-01CL Manual 2100-789C Page 48 of 50...
  • Page 49 GRAPH 1 W18*Y FAD-NE2, 3 W/O Exhaust Ventilation Delivery GRAPH 2 W24*Y FAD-NE2, 3 W/O Exhaust Ventilation Delivery Manual 2100-789C Page 49 of 50...
  • Page 50 GRAPH 3 W30*Y FAD-NE2, 3 W/O Exhaust Ventilation Delivery GRAPH 4 W36*Y FAD-NE2, 3 W/O Exhaust Ventilation Delivery Manual 2100-789C Page 50 of 50...

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