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INSTALLATION INSTRUCTIONS
PACKAGE AIR CONDITIONERS
THIS MODEL USES REFRIGERANT R-407C
and IS FOR 50HZ OPERATION.
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
WALL MOUNTED
Model:
WE121
Manual :
2100-384B
Supersedes: 2100-384A
File:
Volume III Tab 16
Date:
09-17-10
Manual
2100-384B
Page
1 of 19
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Summary of Contents for Bard WE121
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Page 1: Wall Mounted
INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS Model: WE121 THIS MODEL USES REFRIGERANT R-407C and IS FOR 50HZ OPERATION. Bard Manufacturing Company, Inc. Manual : 2100-384B Supersedes: 2100-384A Bryan, Ohio 43506 File: Volume III Tab 16 Since 1914...Moving ahead, just as planned. -
Page 2: Table Of Contents
CONTENTS Getting Other Informations and Publications ..3 Start Up Important Installer Note .......... 14 Wall Mount General Information Service Hints ............14 Air Conditioner Wall Mount Model Nomenclature ..4 High Pressure Switch ..........14 Shipping Damage ............. 6 Sequence of Operation ........... -
Page 3: Getting Other Informations And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. You can usually find these at THESE 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 AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE – REVISIONS MODEL NUMBER CONTROL MODULES E - Low Ambient Control 00 - No KW J - Telecommunication 02 - 2 KW CAPACITY 03 - 3 KW 12 - 1 Ton COIL OPTIONS VOLTS &... -
Page 5: Figure 1 Unit Dimensions
Manual 2100-384B Page 5 of 19... -
Page 6: Shipping Damage
SHIPPING DAMAGE DUCT WORK Upon receipt of equipment, the carton should be All duct work, supply and return must be properly sized checked for external signs of shipping damage. If for the design air flow requirement of the equipment. damage is found, the receiving party must contact the Air Conditioning Contractors of America (ACCA) is an last carrier immediately, preferably in writing, excellent guide to proper sizing. -
Page 7: Fresh Air Intake
CONDENSATE DRAIN FRESH AIR INTAKE This unit employs an automatic condensate disposal All units are built with fresh air inlet slots punched in system consisting of a base drain pan, drain valve and the service panel. fan blade with slinger ring. A plastic drain hose extends If the unit is equipped with a fresh air damper assembly, from the evaporator drain pain at the top of the unit to the assembly is shipped already attached to the unit. -
Page 8: Installation Instructions
INSTALLATION INSTRUCTIONS MOUNTING THE UNIT WALL MOUNTING INFORMATION 1. Two holes, for the supply and return air openings, 1. These units are secured by wall mounting brackets which secure the unit to the outside wall surface at must be cut through the wall as shown in Figure 4. both sides. -
Page 9: Figure 3 Mounting Instructions Using Csrg-1
Manual 2100-384B Page 9 of 19... -
Page 10: Figure 4 Mounting Instructions
Manual 2100-384B Page 10 of 19... -
Page 11: Figure 5 Wall Mounting Instructions
FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE FIGURE 4 - 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 BRACKET. -
Page 12: Figure 7 Common Wall Mounting
FIGURE 7 COMMON WALL-MOUNTING INSTALLATIONS SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/ GRILLE RETURN AIR RETURN AIR OPENING W/ GRILLE OPENING W/ GRILLE... -
Page 13: 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 transformers. All equipment leaves the factory wired on size. -
Page 14: Start Up
Recycling the wall thermostat resets the manual lockout. HIGH PRESSURE SWITCH The WE121 models are supplied with a remote reset Low Pressure Switch, Bypass and Lockout high pressure switch. If tripped, this pressure switch Sequence (Optional) -
Page 15: Adjustments
ADJUSTMENTS PRESSURE SERVICE PORTS Adjustable Delay on Make and Delay on Break Liquid and suction pressure service ports are installed Timer on all units so that the system operating pressures can be observed. Pressure chart can be found later in the The potentiometer is used to select Delay on Break time manual covering all models. -
Page 16: Figure 8 Fan Blade Setting Dimensions
TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS TABLE 5 INDOOR BLOWER Show in Figure 8 is the correct fan blade setting PERFORMANCE dimension for proper air delivery across the outdoor CFM @ 220V 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 motor shaft accordingly. -
Page 17: Pressure Table
TABLE 8 PRESSURE TABLE COOLING Air Temperature Entering Outdoor Coil ° 5 ° 0 ° 5 ° 0 ° 5 ° 0 ° 5 ° 0 ° 5 ° 5 ° 2 ° 0 ° 7 ° 5 ° 2 TABLE 9 OPTIONAL FIELD INSTALLED ACCESSORIES Manual... -
Page 18: Service Procedure & Considerations
NOTICE: Temperature" column on the pressure temperature chart. When opening a system, care must be taken to All Bard "WE" models have a pressure tap in the minimize the system exposure to atmosphere. suction line and the liquid line. Exposure for more than five minutes could shorten the life of the system. -
Page 19: Table 10 Temperature / Pressure Chart
TABLE 10 R-407C SATURATED VAPOR/LIQUID TEMPERATURE/PRESSURE CHART ) ° ) ° ) ° ) ° Manual 2100-384B Page 19 of 19...