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Bard WA121 manual

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Table of contents for the manual

  • Page 1

    Manual 2100-234 I Page 1 of 1 7 W ALL MOUNTED P ACKAGE AIR CONDITIONERS Model: W A121 INST ALLA TION INSTRUCTIONS Manual : 2100-234 I Supersedes: 2100-234H File: V olume III T ab 16 Date: 08-01-07 Bard Manufacturing Company , Inc. Bryan, Ohio 43506 Since 1914....Moving ahead just as planned. © Copyright 2002[...]

  • Page 2

    Manual 2100-234 I Page 2 of 1 7 CONTENTS Getting Other Informations and Publications 3 W all Mount General Information Air Conditioner W all Mount Model Nomenclature ..... 4 Shipping Damage ..................................................... 6 General ..................................................................... 6 Duct Work ..............[...]

  • Page 3

    Manual 2100-234 I Page 3 of 1 7 GETTING OTHER INFORMA TION and PUBLICA TIONS These publications can help you install the air 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 standard. National E lectrical Code ...................... AN[...]

  • Page 4

    Manual 2100-234 I Page 4 of 1 7 W ALL MOUNT GENERAL INFORMA TION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE TABLE 1 ELECTRIC HEAT TABLE s l e d o MA - 1 2 1 A WK - 1 2 1 A WG - 1 2 1 A W V 0 4 2V 8 0 2V 0 2 1V 0 4 2V 0 2 2 W KA 1 U T BA 1 U T BA 1 U T BA 1 U T BA 1 U T B 2 03 . 8 15 8 9 , 70 . 0 15 6 6 , 81 . 90 0 3 , 7 3 00 . 5 10 6 7 , 2 10 . [...]

  • Page 5

    Manual 2100-234 I Page 5 of 1 7 FIGURE 1 UNIT DIMENSIONS FACTORY BUILT AT 5 INCHES[...]

  • Page 6

    Manual 2100-234 I Page 6 of 1 7 SHIPPING DAMAGE Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. GENERAL The equipment covered in this manual is to be[...]

  • Page 7

    Manual 2100-234 I Page 7 of 1 7 DUCT WORK All duct work, supply and return must be properly sized for the design air flow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both co[...]

  • Page 8

    Manual 2100-234 I Page 8 of 1 7 INST ALLA TION INSTRUCTIONS WALL MOUNTING INFORMATION 1. These units are secured by wall mounting brackets which secure the unit to the outside wall surface at both sides. 2. On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibrat[...]

  • Page 9

    Manual 2100-234 I Page 9 of 1 7 FIGURE 3 MOUNTING INSTRUCTIONS[...]

  • Page 10

    Manual 2100-234 I Page 10 of 1 7 FIGURE 5 WALL MOUNTING INSTRUCTIONS FIGURE 4 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 - MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS[...]

  • Page 11

    Manual 2100-234 I Page 11 of 1 7 FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS[...]

  • Page 12

    Manual 2100-234 I Page 12 of 1 7 WIRING – MAIN POWER Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed[...]

  • Page 13

    Manual 2100-234 I Page 13 of 1 7 FIGURE 7 LOW VOLTAGE WIRING[...]

  • Page 14

    Manual 2100-234 I Page 14 of 1 7 ST ART UP IMPORTANT INSTALLER NOTE For improved start up performance, wash the indoor coil with a dishwasher detergent. SERVICE HINTS 1. Caution owner to maintain clean air filters at all times. Also not to needlessly close off supply and return air registers. This reduces airflow through the system which shortens e[...]

  • Page 15

    Manual 2100-234 I Page 15 of 1 7 ADJUSTMENTS Adjustable Delay on Make and Delay on Break Timer The potentiometer is used to select Delay on Break time from 30 seconds to 5 minutes. Delay of Make (DOM) timing on power up and after power interruptions is equal to 2 minutes plus 10% of Delay of Break (DOB) setting: 0.5 minute (30 seconds) DOB = 123 se[...]

  • Page 16

    Manual 2100-234 I Page 16 of 1 7 TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS Show in Figure 8 is the correct fan blade setting dimension for proper air delivery across the outdoor coil. Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimension below be checked and blade adjusted in or out on the [...]

  • Page 17

    Manual 2100-234 I Page 17 of 1 7 TABLE 10 PRESSURE TABLE l e d o M r i A n r u t e R e r u t a r e p m e Te r u s s e r P5 7 o 0 8 o 5 8 o 0 9 o 5 9 o 0 0 1 o 5 0 1 o 0 0 1 o 5 1 1 o 1 2 1 A W B D . g e d 5 7 B W . g e d 2 6 e d i S w o L e d i S h g i H 2 7 7 8 1 4 7 1 0 2 6 7 6 1 2 9 7 2 3 2 1 8 8 4 2 3 8 5 6 2 6 8 2 8 2 8 8 0 0 3 1 9 9 1 3 B D .[...]