WALL MOUNTED PACKAGED AIR CONDITIONER INSTALLATION INSTRUCTIONS Models: WA3S3 WA4S3 WA5S3 WL3S2 WL4S2 WL5S2 NOTE THIS IS AN R-410A HIGH PRESSURE REFRIGERANT SYSTEM 0,6 Bard Manufacturing Company, Inc. Bryan, Ohio 43506 Since 1914...Moving ahead just as planned.
CONTENTS Getting Other Information and Publications For more information contact these publishers ........ 3 Wall Mount General Information Air Conditioner Wall Mount Model Nomenclature .... Shipping Damage .................................................... General ............................................................... Duct Work ............................................................... Filters ............................................................... Condensate Drain .................
Getting Other Information and Publications 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. FOR MORE INFORMATION, CONTACT THESE PUBLISHERS: ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave. N.W.
WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE WA 4S 3 MODEL NUMBER WA – Right Hand WL – Left Hand – B 09 B P X X X X CONTROL MODULES REVISION COIL OPTIONS X – Standard VOLTS & PHASE A – 230/208-1 B – 230/208/60-3 C – 460/60-3 CAPACITY 3S – 3 Ton 4S – 4 Ton 5S – 5 Ton KW 0Z – No KW w/Circuit Breaker or Pull Disconnect 05 06 08 09 10 15 20 – 5 KW – 6 KW – 8 KW – 9 KW – 10 KW – 15 KW – 20 KW OUTLET OPTIONS X – Front (Standard) VENTILATION OPTIONS B – Blank-off
TABLE 2 DIMENSIONS OF BASIC UNIT FOR ARCHITECTURAL & INSTALLATION REQUIREMENTS (NOMINAL) Supply Unit Width W Depth D 42.075 22.432 WA/L3S WA/L4S Height H Return A B C B E F G 9.88 29.88 15.88 29.88 43.88 19.10 84.875 I 31.66 94.875 J K L M 32.68 26.94 34.69 32.43 30.00 41.66 42.68 36.94 44.69 N O 3.37 42.88 P Q R S T 10.00 1.44 16.00 1.88 23.88 42.43 33.88 WA/L5S All dimensions in inches. Dimensional Drawings are not to scale.
Manual 2100-526E Page 6 of 24 - B 0Z - B 06 - B 09 - B 15 - C 0Z - C 06 - C 09 - C 15 - A 0Z - A 05 - A 08 - A 10 - A 15 - A 20 - B 0Z - B 06 - B 09 - B 15 - C 0Z - C 06 - C 09 - C 15 - A 0Z - A 05 - A 08 - A 10 - A 15 - A 20 - B 0Z - B 06 - B 09 - B 15 - C 0Z - C 06 - C 09 - C 15 WA/L3S WA/L3S WA/L4S WA/L4S WA/L4S WA/L5S WA/L5S WA/L5S 460-3 230/208-3 230/208-1 460-3 230/208-3 230/208-1 460-3 230/208-3 230/208-1 1 1 1 1 1 1 1 1 1 1 1 1 or 2 1 or 2 1 or 3 1 1 1 1 1 1 1 1 17 17
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 installed by trained, experienced service and installation technicians. Refer to Table 10 for maximum static pressure available for duct design.
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 1. Two holes, for the supply and return air openings, must be cut through the wall as shown in Figure 3. 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 vibration. See Figures 4 and 5. WARNING 3. Locate and mark lag bolt locations and bottom mounting bracket location. See Figure 4. 4. Mount bottom mounting bracket. 5. Hook top rain flashing under back bend of top.
The unit rating plate lists a “Maximum Time Delay Relay Fuse” or “HACR” type circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor. To convert for the locking capability, bend the tab located in the bottom left hand corner of the disconnect opening under the disconnect access panel straight out.
FIGURE 3 WALL-MOUNTING INSTRUCTIONS SEE FIGURE 3 — MOUNTING INSTRUCTIONS WALL STRUCTURE FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR OPENING SUPPLY AIR OPENING SUPPLY AIR DUCT RETURN AIR OPENING RETURN AIR OPENING RETURN AIR OPENING BOTTOM MOUNTING BRACKET. MOUNT ON WALL BEFORE INSTALLING UNIT.
FIGURE 5 COMMON WALL-MOUNTING INSTALLATIONS SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN FLASHING RAFTERS RAIN FLASHING FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT W/ GRILLE FINISHED CEILING SURFACE RETURN AIR OPENING W/ GRILLE RETURN AIR OPENING W/ GRILLE OUTSIDE WALL RAFTERS OUTSIDE WALL FREE AIR FLOW NO DUCT DUCTED SUPPLY RETURN AT UNIT SUPPLY DUCT MAYBE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN FLASHING RAFTERS SUPPLY DUCT MAY
FIGURE 6 ELECTRIC HEAT CLEARANCE 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 result in fire. Side section view of supply air duct for wall mounted unit showing 1/4 inch clearance to combustible surfaces.
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.
START UP CONTINUED IMPORTANT INSTALLER NOTE HIGH & LOW PRESSURE SWITCH For improved start-up performance, wash the indoor coil with a dishwasher detergent. All models covered by this Manual are supplied with a remote reset high pressure switch and low pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again. CRANKCASE HEATERS All units covered in this manual are provided with compressor crankcase heat.
SERVICE HINTS Adjustable Delay On Make And Break Timer 1. Maintain clean air filters at all times. Also, do not close off or block supply and return air registers. This reduces air flow through the system, which shortens equipment service life as well as increasing operating costs. On initial power up or anytime power is interrupted to the unit, the delay on make period begins, which will be 2 minutes plus 10% of the delay on break setting.
Alarm Relay Output PHASE MONITOR Alarm terminal is output connection for applications where alarm relay is employed. This terminal is powered whenever compressor is locked out due to HPC or LPC sequences as described. All units with three phase scroll compressors are equipped with a 3-phase line monitor to prevent compressor damage due to phase reversal. NOTE: Both high and low pressure switch controls are inherently automatic reset devices.
TROUBLESHOOTING COMPRESSOR SOLENOID FAN BLADE SETTING DIMENSIONS (See Sequence of Operation on Page 15 for function.) A nominal 24-volt direct current coil activates the internal compressor solenoid. The input control circuit voltage must be 18 to 28 volt ac. The coil power requirement is 20 VA. The external electrical connection is made with a molded plug assembly. This plug contains a full wave rectifier to supply direct current to the unloader coil.
TROUBLESHOOTING CONT’D. R-410A REFRIGERANT CHARGE This unit was charged at the factory with the quantity of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity. Manual 2100-526E Page 18 of 24 The following pressure tables show nominal pressures for the units.
TABLE 8 COOLING PRESSURE – (ALL TEMPERATURES °F) HIGH CAPACITY COOLING RETURN AIR MODEL TEMPERATURE PRESSURE WA3S WL3S WA4S WL4S WA5S WL5S AIR TEMPERATURE ENTERING OUTDOOR COIL DEGREE F 5 0 oF 5 5 oF 6 0 oF 6 5 oF 7 0 oF 7 5 oF 8 0 oF 8 5 oF 9 0 oF 9 5 oF WA3S WL3S WA4S WL4S WA5S WL5S 110oF 115oF 75° D B 62° WB LOW SIDE HIGH SIDE 112 195 115 214 119 233 122 253 126 272 129 291 131 314 132 337 134 360 135 383 136 409 138 435 139 461 140 487 80° D B 67° WB LOW SIDE HIGH SI
TROUBLESHOOTING GE ECM™ MOTORS CAUTION: Symptom Cause/Procedure Disconnect power from unit before removing or replacing connectors, or servicing motor. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor. • Noisy blower or cabinet • Check for loose blower housing, panels, etc.
TROUBLESHOOTING GE ECM™ MOTORS CONT’D. Replacing ECM Control Module To replace the control module for the GE variable-speed indoor blower motor you need to take the following steps: 1. You MUST have the correct replacement module. The controls are factory programmed for specific operating modes. Even though they look alike, different modules may have completely different functionality. USING THE WRONG CONTROL MODULE VOIDS ALL PRODUCT WARRANTIES AND MAY PRODUCE UNEXPECTED RESULTS. 2.
TABLE 9 INDOOR BLOWER PERFORMANCE 1 Rated ESP MAX ESP 2 Continuous C FM WA/L3S 0.15 0.80 800 800 1100 1100 1400 WA/L4S 0.20 0.80 825 1100 1500 1100 1500 WA/L5S 0.20 0.80 850 1300 1700 1100 1500 Model 3 Rated 1st Stage CFM 4 Rated 2nd Stage CFM 5 5-10 KW C FM 6 15-20 KW C FM 1 Motor will deliver consistent CFM through voltage supply range with no deterioration.
WA5S3-C WA5S3-B WA5S3-A WA4S3-C WA4S3-B WA4S3-A WA3S3-C WA3S3-B MODEL DESCRIPTION WA3S3-A TABLE 11 OPTIONAL ACCESSORIES EHWA4S-A05 Heater Package X X EHWA4S-A10 Heater Package X X EHWA4S-A15 Heater Package X X EHWA4S-A20 Heater Package X X EHWA5S-A05 Heater Package EHWA5S-A08 Heater Package EHWA5S-A10 Heater Package X EHWA5S-A15 Heater Package X EHWA5S-A20 Heater Package X EHWA3S-B06 Heater Package EHWA5S-B06 Heater Package EHWA5S-B09 Heater Package EHWA5S-B15
WL5S2-C WL5S2-B WL5S2-A WL4S2-C WL4S2-B WL4S2-A WL3S2-C DESCRIPTION EHWA4S-A05L Heater Package X X EHWA4S-A10L Heater Package X X EHWA4S-A15L Heater Package X X EHWA4S-A20L Heater Package X X EHWA5S-A05L Heater Package EHWA5S-A08L Heater Package EHWA5S-A10L Heater Package X EHWA5S-A15L Heater Package X EHWA5S-A20L Heater Package X EHWA3S-B06L Heater Package EHWA5S-B06L Heater Package EHWA5S-B09L Heater Package EHWA5S-B15L Heater Package EHWA5S-C06L Heater Packag
