Bard W48A23 Installation Instructions Manual
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Bard W48A23, Manual 2100-594 Page 1 of 19 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS MODELS W48A23 W48L23 W60A23 W60L23 Manual : 2100-594 Supersedes: NEW File: Volume III Tab 16 Date: 04-23-13 Bard Manufacturing Company, Inc. Bryan, Ohio 43506 Since 1914...Moving ahead just as planned.
Bard W48A23, Manual 2100-594 Page 2 of 19 Contents Figures Figure 1 Unit Dimensions ....................................... 7 Figure 2 Unit Dimensions ....................................... 8 Figure 3 Unit Dimensions ....................................... 9 Figure 4 Unit Dimensions ..................................... 10 Figure 5 Wall Mounting Instructions ..................... 11 Figure 6 Wall Mounting Instructions ..................... 11 Figure 7 Common Wall Mounting Installations .....12 Figure 13 Fan Blade Setting ........
Bard W48A23, Manual 2100-594 Page 3 of 19 GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air conditioner or heat pump. You can usually nd these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard. National Electrical Code ....................... ANSI/NFPA 70 Standard for the Installation ............... ANSI/NFPA 90A of Air Conditioning and Ventilating Systems Standard for Warm Air ....................... ANSI/NFPA 90B Heating and Air Conditioning Systems Load Calculation for ......................... ACCA Manual J Residential Winter and Sum
Manual 2100-594 Page 4 of 19 WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE W 48 A 2 3 A 10 B X X X X A NOTE: Vent option B is without exhaust capability. May require separate eld supplied barometric relief in building. SHIPPING DAMAGE Upon receipt of equipment, the carton should be checked for external signs o
Bard W48A23, Manual 2100-594 Page 5 of 19 DUCT WORK All duct work, supply and return, must be properly sized for the design airow 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 conserve energy and prevent condensation or moisture damage. Refer to Maximum ESP of operation Electric Heat Table. Design the duct work according to methods given by the Air C
Manual 2100-594 Page 6 of 19 Clearances Required for Service Access and Adequate Condenser Airow MODELS LEFT SIDE RIGHT SIDE W48A, W60A 20" 20" W48L, W60L 20" 20" NOTE: For side by side installation of two (2) W**A models there must be 20" between units. This can be reduced to 15" by using a W**L model (left side compressor and control
Bard W48A23, Manual 2100-594 Page 7 of 19 1.88 16.00 16.00 16.00 16.00 16.00 43.88 43.00.44 27.88 23.87 32.50 34.75 37.13 40.63 43.63 7.88 18.00 13.88 43.00 32.69 84.88 42.00 13.50 31.50 7.06 22.25 3.31 4.56 10.0 11.0 3.25 Side Wall Back View Ventilation Air Supply Air Opening Bracket Installation Return Air Opening Electric Heat Electrical Drain Built In Slope Top 2° Pitch Panel (Built In) Heater Access Circuit Breaker Disconnect Access Panel (Lockable) Entrances Mounting Brackets Entrances Condenser Airflow is Blowthrough on All Models Front View Low Voltage Right Side View Electrical B
Bard W48A23, Manual 2100-594 Page 8 of 19 22.25 13.50 31.50 7.88 18.00 13.88 43.00 32.81 84.88 23.88 32.50 40.63 34.75 43.63 3.31 4.56 27.88 43.00 43.88 1.88 16.00 16.00 16.00 16.00 16.00 42.00 10.00 3.25 11.00 37.13 7.06 .44 Front View Air Opening Supply Left Side View Installation Air Opening Return Heat Electric Top 2° Pitch Built In Slope Bracket Panel Access Heater Circuit Breaker Panel (Lockable) Disconnect Access Entrances Entrances Condenser Airflow All Models is Blowthrough on Ventilation Air Electrical Low V
Bard W48A23, Manual 2100-594 Page 9 of 19 FIGURE 3 W48A23, W60A23, W48L23, W60L23 MOUNTING INSTRUCTIONS 6 1 2 " 6 1 2 " 2 1 8 " 7 8 " 3 1 8 " 4" Typ. 4" Typ. 1" 3" 16" 16" 16" 16" 16" 1 7 8 " A CC B E 14" D 28" 7 1 2 " TOP B 1/4" CLEARANCE ON ALL SUPPLIED FOAM AIR SEAL 1 C FROM COMBUSTABLE DUCT REQUIRED DIMENSIONS TO MAINTAIN D HEATER ACCESS MATERIALS Wall Opening and Hole Location View 1/4" MIN. CLEARANCE FROM E AIR DUCT IS REQUIRED NOTES: RAIN FLASHING FOUR SIDES OF SUPPLY REQUIRED DIMENSIONS TO MAINTAIN IT IS RECOMMENDED THAT A BEAD OF TOP FLASHING AT TIME OF INSTALLATION. COMB
Bard W48A23, Manual 2100-594 Page 10 of 19 FIGURE 4 ELECTRIC HEAT CLEARANCE W48A23, W48L23, W60A23, W60L23 WARNING A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the rst 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 result in a re causing damage, injury or death. SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4 INCH CLEARANCE TO COMBUSTIBLE SURFACES.
Bard W48A23, Manual 2100-594 Page 11 of 19 FIGURE 5 WALL MOUNTING INSTRUCTIONS FIGURE 6 WALL MOUNTING INSTRUCTIONS DUCT OPENING RETURN AIR SUPPLY AIR WOOD FRAME WALL INSTALLATION OPENING WALL BEFORE MOUNT ON UNIT OPENING BEFORE INSTALLATION BOTTOM MOUNTING CONCRETE BLOCK WALL INSTALLATION BRACKET. MOUNT ON OPENING WOOD OR STEEL SIDING OPENING INSTALLING UNIT. RETURN AIR WALL STRUCTURE RETURN AIR SUPPLY AIR FACTORY SUPPLIED RAIN FLASHING. SUPPLY AIR MIS-548 A SIDE VIEW I A C K E + 1.000 B 1.000 SUPPLY DUCT OVER FRAME INTERIOR FINISHED WALL ALL AROUND DUCT FRAMING MAT
Manual 2100-594 Page 12 of 19 FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS LOWERED RAISED FLOOR RAFTERS SUPPLY AIR CEILING SURFACE WALL SLEEVE RETURN AIR CLOSET WALL GRILLE FLASHING RETURN AIR FLASHING SUPPLY DUCT MAYBE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN SUPPLY DUCT MAY BE LOCATED IN AN ATTIC SURFACE RAFTERS FINISHED CEILING SUPPLY AIR DUCT WALL OPENING W/ GRILLE SUPPLY
Bard W48A23, Manual 2100-594 Page 13 of 19 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 eld wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two eld power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Ea
Bard W48A23, Manual 2100-594 Page 14 of 19 START UP THESE UNITS REQUIRE R-410A REFRIGERANT AND POLYOL ESTER OIL. GENERAL: 1. Use separate service equipment to avoid cross contamination of oil and refrigerants. 2. Use recovery equipment rated for R-410A refrigerant. 3. Use manifold gauges rated for R-410A (800 psi/250 psi low). 4. R-410A is a binary blend of HFC-32 and HFC-125. 5. R-410A is nearly azeotropic - similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant. 6. R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand
Bard W48A23, Manual 2100-594 Page 15 of 19 START UP (Continued) IMPORTANT INSTALLER NOTE For improved start up performance wash the indoor coil with a dish washing detergent. HIGH & LOW PRESSURE SWITCH All W**A/W**L wall mounted air conditioner series models are supplied with a remote reset for the high and low pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again. THREE PHASE SCROLL COMPRESSOR START UP INFORMATION Scroll compressors, like s
Bard W48A23, Manual 2100-594 Page 16 of 19 SEQUENCE OF OPERATION COOLING – Circuit R-Y makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. (See NOTE under Condenser Fan Operation if equipped with Low Ambient Control.) The G (indoor motor) circuit is automatically completed by the thermostat on any call for cooling operation or can be energized by manual fan switch on subbase for constant air circulation. On a call for heating, circuit R-W1 make at the thermostat pulling in heat contactor for the strip heat and blower operation. On a call for second stage heat, R-W2 makes bringing on second heat conta
Manual 2100-594 Page 17 of 19 Speed W48A23 W48L23 W60A23 W60L23 High High ESP (Inch H20) Dry Coil Wet Coil Dry Coil Wet Coil 0.0 1850 1800 2080 2015 0.1 1775 1725 2020 1960 0.2 1685 1640 1925 1865 0.3 1590 1550 1870 1815 0.4 1495 1460 1755 1705 0.5 1400 1365 1660 1610 Model Rated CFM Rated ESP Recommended Airow Range W48A23 W60A24 1550 1770 .30 .40 1750 - 13
Bard W48A23, Manual 2100-594 Page 18 of 19 TABLE 5 COOLING PRESSURE TABLE Air Temperature Entering Outdoor Coil °F Low side pressure ± 4 PSIG High side pressure ± 10 PSIG Tables are based upon rated CFM (airow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate charge weight. NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan wiring. See “Condenser Fan Operation”. Maximum size of the time dela
Bard W48A23, Manual 2100-594 Page 19 of 19 TABLE 8 ELECTRIC HEAT TABLE 7 OPTIONAL ACCESSORIES W48A23 & W48L23 ARE NOT APPROVED FOR USE WITH ELECTRIC HEAT. W60A23 W48A23 Part Number Description CMC-15 Start Kit X X WMCB-09A WMCB-08A Circuit Breaker Kit Circuit Breaker Kit X X Model W60A23 240V-1 208V-1 KW Amps BTUH Amps BTUH 5 20.8 17,050 18.1 12,800 10 41.6 34,130 36.2 25,600
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