Bard Mfg. Co.WA491 user manual

User manual for the device Bard Mfg. Co.WA491

Device: Bard Mfg. Co.WA491
Category: Air Conditioner
Manufacturer: Bard
Size: 0.28 MB
Added : 12/21/2013
Number of pages: 21
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Abstracts of contents
Summary of the content on the page No. 1

INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE AIR CONDITIONERS
MODELS
WA381
WA423
WA484
WA491
WA602
Manual : 2100-398
Bard Manufacturing Company
Supersedes:
Bryan, Ohio 43506
File: Volume III Tab 16
Since 1914...Moving ahead just as planned.
Date: 01-28-02
© Copyright 2002

Summary of the content on the page No. 2

Contents Start Up Getting Other Information and Publications 1 Important Installer Note ......................................... 14 High Pressure Switch ............................................ 14 Wall Mount General Information Three Phase Scroll Compressor Start Up ............. 14 Heat Pump Wall Mount Model Nomenclature.......... 2 Phase Monitor ....................................................... 14 Shipping Damage .................................................... 5 Condenser Fan O

Summary of the content on the page No. 3

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. 1712 New Hampshire Ave. N.W. Washington, DC 20009 Telephone: (202) 483-9370 National Electrical Code ...................... ANSI/NFPA 70 Fax:

Summary of the content on the page No. 4

WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE MODEL NUMBER CONTROL WA 42 3 – A 10 X N X X X A MODULES (See Chart Below) CAPACITY COIL OPTIONS 38 - 3 Ton X - Standard 42 - 3 1/2 Ton REVISIONS 1 - Phenolic Coated Evaporator 48 - 4 Ton COLOR OPTIONS 2 - Phenolic Coated Condenser 60 - 5 Ton X - Beige (Standard) 3 - Phenolic Coated Evaporator 1 - White and Condenser KW 2 - Mesa Tan VOLTS & PHASE 4 - Buckeye Gray OUTLET OPTIONS VENTILATION OP

Summary of the content on the page No. 5

Manual 2100-398 Page 3 FIGURE 1 UNIT DIMENSIONS Sn upply Retur Width Depth Height Model (W) (D) (H) A BCB EF G I J K L M N O P Q R S T WA38 WA42 WA4842 2.07525 2.4388 4.8798 .828 9.818 5.828 9.840 3.816 9.130 1.638 0.034 2.629 6.933 4.637 2.438 .348 2.820 3.814 0.010 .418 6.0 1.8 WA49 WA60 FRONT VIEW SIDE VIEW BACK VIEW MIS-1262

Summary of the content on the page No. 6

TABLE 2 ELECTRICAL SPECIFICATIONS SINGLE CIRCUIT DUAL CIRCUIT 3 1 2 2 3 1 2 2 Maximum Maximum No. External Field Minimum ExternalFuse Rated Field Minimum Fuse or Power Ground Circuit or Circuit Field Power Ground Volts & Power Circuit Circuit Wire Wire Ampacity Breaker Wire Size Wire Size Phase Circuits Ampacity Breaker Size Size Model CB KT ACA KTCB KTCA KTCB KTCA KTCB KT CKT WA381-A00,A0Z 1 25 35 8 10 N/A N/A N/A N/A N/A N/A N/A N/A A05 1 32 35 8 10 N/A N/A N/A N/A N/A N/A N/A N/A 230/208-1 A

Summary of the content on the page No. 7

TABLE CONTINUED FROMPAGE 4 SINGLE CIRCUIT DUAL CIRCUIT 3 1 2 2 3 1 2 2 Maximum Maximum Minimum ExternalFuse External Field Circuit or Circuit Field Power Ground No. Rated Field Minimum Fuse or Power Ground Ampacity Breaker Wire Size Wire Size Circuit Circuit Wire Wire Volts & Power Model Phase Circuits Ampacity Breaker Size SizeCB KT ACA KTCB KTCA KTCB KTCA KTCB KT CKT WA602-A00,A0Z 1 44 60 8 10 N/A N/A N/A N/A N/A N/A N/A N/A A05 1 44 60 8 10 N/A N/A N/A N/A N/A N/A N/A N/A A10 230/208-1 1 55 6

Summary of the content on the page No. 8

DUCT WORK FILTERS All duct work, supply and return, must be properly A one inch throwaway filter is supplied with each unit. The filter slides into position making it easy to service. sized for the design air flow requirement of the equipment. Air Conditioning Contractors of America This filter can be serviced from the outside by removing the service door. A one inch washable filter and two (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned

Summary of the content on the page No. 9

INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 1. Two holes for the supply and return air openings WARNING must be cut through the wall as shown in Figure 3. 2. On wood frame walls, the wall construction must be Failure to provide the 1/4 inch clearance strong and rigid enough to carry the weight of the between the supply duct and a combustible unit without transmitting any unit vibration. surface for the first 3 feet of duct can result in fire causing damage, injury or death. 3. Co

Summary of the content on the page No. 10

Manual 2100-398 Page 8 FIGURE 3 MOUNTING INSTRUCTIONS MIS-416

Summary of the content on the page No. 11

FIGURE 4 ELECTRIC HEAT CLEARANCE SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4 INCH CLEARANCE TO COMBUSTIBLE SURFACES. MIS-277 WARNING A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3 feet of ducting. It is important to insure that the 1/4 inch minimum spacing is maintained at all points. Failure to do this could result in overheating the combustible material and may resu

Summary of the content on the page No. 12

FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS WALL STRUCTURE FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR OPENING OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING OPENING BOTTOM MOUNTING BRACKET. MOUNT ON WALL BEFORE INSTALLING UNIT. MIS-548 FIGURE 6 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS ATTACH TO TOP PLATE OF WALL 1.000” CLEARANCE ALL AROUN

Summary of the content on the page No. 13

FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS FREE AIR FLOW NO DUCT DUCTED SUPPLY RETURN AT UNIT CLOSET INSTALLATION FALSE WALL INSTALLATION MIS-550 Manual 2100-398 Page 11

Summary of the content on the page No. 14

WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING Refer to the unit rating plate for wire sizing information 230 / 208V, 1 phase and 3 phase equipment dual and maximum fuse or “HACR” type circuit breaker primary voltage transformers. All equipment leaves the size. Each outdoor unit is marked with a “Minimum factory wired on 240V tap. For 208V operation, Circuit Ampacity”. This means that the field wiring reconnect from 240V to 208V tap. The acceptable used must be sized to carry that amount

Summary of the content on the page No. 15

FIGURE 8 UNIT 24V TERMINAL BOARD MIS-1373A Manual 2100-398 Page 13

Summary of the content on the page No. 16

START UP IMPORTANT INSTALLER NOTE PHASE MONITOR For improved start up performance wash the indoor coil All units with three phase scroll compressors are with a dish washing detergent. equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal. HIGH PRESSURE SWITCH The phase monitor in this unit is equipped with two The WA381, WA484, WA491 and WA602 models are LEDs. If the Y signal is present at the phase monitor and phases are correct the green LED will light. suppl

Summary of the content on the page No. 17

pressure switch, the contactor will reenergize after the SEQUENCE OF OPERATION delay on make time delay has expired. If the low COOLING – Circuit R-Y makes at thermostat pulling pressure switch remains open, or opens again for longer in compressor contactor, starting the compressor and than 120 seconds the unit will go into manual lockout outdoor motor. The G (indoor motor) circuit is condition and the alarm relay circuit will energize. automatically completed on any call for cooling Recyclin

Summary of the content on the page No. 18

TROUBLESHOOTING 4. Unwire condenser fan motor. FAN BLADE SETTING DIMENSIONS Shown in Figure 10 is the correct fan blade setting 5. Slide complete motor, fan blade, and shroud dimension for proper air delivery across the outdoor assembly out the left side of the unit. coil. 6. Service motor/fan as needed. Any service work requiring removal or adjustment in 7. Reverse steps to reinstall. the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the

Summary of the content on the page No. 19

TABLE 7A INDOOR BLOWER PERFORMANCE CFM @ 230V / 460V W1 A381 WA49 Hd igh SpeedMd ediumSpeeLd ow SpeeHd igh Spee MediumSpee E.S.P. In Dry Wet Dry Wet Dry Wet Dry Wet Dry Wet H O Coil Coil Coil Coil Coil Coil Coil Coil Coil Coil 2 .0 1625 1475 1425 1325 1125 1100 1700 1550 1475 1375 .1 1475 1350 1325 1200 1100 1000 1550 1400 1375 1250 .2 1350 1150 1200 125 1000 850 1400 1250 1250 1100 .3 1150 825 1025 875 825 675 1250 1100 1100 825 .4 825 750 - - - - - - - - - - - - 900 800 - - - - - - TABLE 8 R

Summary of the content on the page No. 20

TABLE 10 PRESSURE TABLE COOLING Air Temperature Entering Outdoor Coil °F Return Air ModelTe emperatureP5 ressur 708580959015 010 015 1 11 75 deg.DB LowSide 74 74 75 76 78 79 79 80 81 62 deg.WB HighSide 175 187 202 216 232 249 265 284 302 80 deg.DB LowSide 79 79 80 81 83 84 85 86 87 WA381 67 deg.WB HighSide 179 192 207 222 238 255 272 291 310 85 deg.DB LowSide 82 82 83 84 86 87 88 89 90 72 deg.WB HighSide 185 199 214 230 246 264 252 301 321 75 deg.DB LowSide 70 72 73 75 76 77 78 79 79 62 deg.WB


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