Bard W30A1 Air Conditioner User Manual
Contents
1. D 0 W A Built In 88 Rain Hood 3188 RIGHT 4 Pitch 1 00 4 Heater A cone zp Side Wall mL DEDE R ide Wa i i m Mounting Supply Air Opening i Electric Brackets x Heat i Built In ll C Breaker Disconnect PN ockable ashin 7 lt Shippo 5 Filter Access ocauon sF e an 5 75 Vent Opti Optional C H Electrical Air Opening Entrances Ventilation F e et 9 E i Low Voltage P ntrance K d G High Voltage Cond L Electrical Air M Entrance Inlet E pe Front View Side View Drain Back MUS Installation 0 Bracket MIS 2487 B Dimension is 21 00 inches W70A amp W70L models Optional top outlet factory installed only for W30A and W36A models only Built In 0 Rain Hood in 44 4 Pitch Electric W L L z z 1 ne ra Heat 4 LEFT 4 Supply Air Opening B es Heater ounting Access UNIT 5 p 1 tia 41 Breaker Disconnect ccess Pane Lockable i Filter A ilter Access VA Ventilation j i 5 752. SUPPLY AIR OPENING RETURN AIR OPENING WOOD OR STEEL SIDING MOUNT ON UNIT BEFORE INSTALLATION BOTTOM MOUNTING BRACKET MOUNT ON WALL BEFORE INSTALLING UNIT CONCRETE BLOCK WALL INSTALLATION MIS 549 A Manual 2100 508F Page 120f25 WOOD FRAME WALL INSTALLATION FIGURE 6 SIDE VIEW WALL MOUNTING INSTRUCTIONS FRAMING MATERIAL 2x45 2x65 STRUCTURAL STEEL ATTACH TO TOP PLATE OF WALL 1 000 CLEARANCE ALL AROUND DUCT IF REQUIRED 1 000 CLEARANCE ALL AROUND DUCT IF REQUIRED EXTERIOR FINISH WALL OVER FRAME ATTACH TO BOTTOM PLATE OF WALL WALL STRUCTURE SUPPLY AIR DUCT RETURN AIR OPENING MIS 548 A SEE UNIT DIMENSIONS FIGURE 2 FOR ACTUAL DIMENSIONS r 1 000 SUPPLY DUCT nm OPENING RETURN DUCT OPENING 7 ma aus STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL OND MEMBER MAY BE ASEC REQUIRED FOR SOME WALLS FIGURE 7 COMMON WALL MOUNTING
3. PT TT xe oc vz wis waa ERVF 5A Energy Recovery Ventilator 230 Volt ERVF 5C Energy Recovery Ventilator 460 Volt Manual 2100 508F Page 25 of 25
4. Caution When more than one field power circuit is run through one conduit the conductors must derated Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three 3 current carrying conductors are in a raceway Top outlet supply option is available only factory installed and only on the selected models IMPORTANT While this electrical data is presented as a guide it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes Manual 2100 508F Page 200f25 4 Electrical Specifications W L Series Single Circuit Dual Circuit Minimum G Maximum i Ground No Field 9 Maximum Field Ground Circuit External Fuse Wire Size Model Power Circuit External Fuse Power Wire Ampacity or Ckt Brie i 1 Circuits Ampacity or Ckt Brkr Wire Size 12 ckt A Ck B W417 18L1 00 AOZ A05 10 A08 230 208 1 10 A10 W24L1 A00 02 A05 A08 230 208 1 A10 W24L1 BOO BOZ 06 230 208 3 W30L1 AO0 AOZ 5 8 230 208 1 A10 A15 58 26 30 10 W3O0L1 BOO BOZ Bog 230 208 3 15 W30L1 COO COZ cog C15 10 W36L1 AO0 AOZ 5 A10 230 208 1 A15 58 26 30 W36L1 BOO BOZ Bog 230 208 3 15 W36L1 COZ cog C15 230 208 1 10 0 0 co
5. 9 OPTIONAL ACCESSORIES owem i LL e d 9 1702 tn gt a _ Emmaa _ _ _ _ Emaseo _ Emaseo _ Eware _ xwoosa cos _ xwoosa cos _ exwaoancrs _ _ _ _ exwaos aco _ Ewas Part Number EHWAO02 A05 EHW02A A08 GdINM LO3NNOOSIG 11Nd SLJ d3 LV3H JNM H33V3H8 Manual 2100 508F 24 of 25 Page TABLE 10 VENT amp CONTROL OPTIONS Part Number Description DT Start Kit 230V 1 Phase D D A Barometric Fresh Air Damper Standard Blank Off Plate Motorized Fresh Air Damper o O10 Commercial Ventilator Spring Return Energy Recovery Ventilator 230 Volt Barometric Fresh Air Damper Standard Blank Off Plate Motorized Fresh Air Damper Commercial Ventilator Spring Return Commercial Ventilator Power Return Economizer Energy Recovery Ventilator 230 Volt Energy Recovery Ventilator 460 Volt BFAD 5 Barometric Fresh Air Damper Standard BOP 5 Blank Off Plate MFADS Motorized Fresh ArDamper cass Ventiator Spring rom Commercial Ventilator Power Return fecoon ws was dtp TEE
6. dOL JO HLONAT 9NDNNV JO HLM WAS LTVZM LV DZM LISLM LYSLM SE TZEM FE VZEM ve LL LO 10 O co gt 5 lt 491 a1ISOddO NO SI SSADOV STOUWLNOD LINN NNAOHSS LINN WM 415 LY ONIHSV 1H dOL YSCNN SHONV 1 ONLLNNOW 3415 JHL 39 ONDTICN 2 5 JO CISCOINSINIWOOHn SI U SILON S WTHZLINIW gIgvLSNAWOD WOY Gay INOS SI LONA AddfS JO 53415 YNOA TIY NO TO AYeNLONALS TIVA Nenad uoije207 pue Buiuedo IeM SSADOV ualvdH WAS uv WWOA 5 SNIHSV 14 L NE 1 1 zl Y 1 1 i winjay zt 3 Buluado Addng 1 e D Vv D rr dor JIAULSNAWOD atv WOY CISCINSIAIAOOH H NNZINIVAA OL SNOISNGIAIC CIHHICOSH dO L JO HLONAT HHLUNH v LS 2 78 2782 SMY FTELLSNANOD SONVYVSTD NINLNIVIALO L SNO
7. Manual 2100 508F Page 5 of 25 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 3 Concrete block walls must be thoroughly inspected to insure that they are capable of carrying the weight of the installed unit MOUNTING THE UNIT 1 These units are secured by wall mounting brackets which secure the unit to the outside wall surface at both sides A bottom mounting bracket attached to skid for shipping is provided for ease of installation but is not required 2 The unit itself is suitable for inch clearance but the supply air duct flange and the first 3 feet of supply air duct require a minimum of 1 4 inch clearance to combustible material for model series W30 W36 W42 W48 W60 and W70 However it is generally recommended that a 1 inch clearance is used for ease of installation and maintaining the required clearance to combustible material See Figure 3 for details on opening sizes 3 Locate and mark lag bolt locations and bottom mounting bracket location See Figure 3 4 Mount bottom mounting bracket 5 Hook top rain flashing attached to front right of supply flange for shipping under back bend of top Clearances Required for Service Access and A
8. Return Air Opening optional NE M Entrances Vent Option N or oor F E Low Voltage i a Electrical L K Entrance i High Voltage Electrical ondense 5 Entrance Air Outlet 2 Y rn e 1 Drain Back View p 263 Side View Front View Installation 1 9 06 Bracket Manual 2100 508F Page 7 of 25 SE SIN 9015 1451 NO SI SSJOOWV YALVSH ANY 5 LINAN bM NNAOHS UNAN NAA NOLLVYTIVLSNI SIALL IN ONIHSV 1H SHONV 14 ONLLNNOW 3415 JHL CINIH3IS CIHOV ld 39 5 JO V CSCOINSIWIANOO H SI LI SILON SNINS3dO IV Nenad uv SW ATaVLSNANOD WO SI LONA JO 53415 unodJ NO FYNLINALS TM Alddns BIS TOA SSID ejor pue EM j Z 4 it KL Z s 1131 sia ppt ee i e i Ledo ran 1 9r 9r i m WAS aanddNS 5 5 ONILNNOW
9. 70 Figure 4 Electric Heat Clearance Figure 5 Wall Mounting Instructions Figure 6 Wall Mounting Instructions Figure 7 Common Wall Mounting Installations Figure 8 Blade Setting 2100 508F 2 of 25 Manual Page 3 Start Up General uude c 15 Topping Off System Charge 15 Safety 5 rentem tree cerita 15 Important Installer Note 16 High Pressure Switch 16 Three Phase Scroll Compressor 16 Phase Monitor 2 ccceeeeececeeeeeeeeeeeeseeeeeeeeeeneees 16 Condenser Fan Operation 16 Semice Hints oio 16 Sequence of Operation 17 Compressor Control Module 17 Adjustments etes 17 Pressure Service Ports 17 Troubleshooting Fan Blade Setting Dimensions 18 Removal of Fan Shroud 18 Refrigerant Charge 18 Tables Table 1 Fan Blade Dimensions 18 Table 2 Cooling Pressure 19 Table 3 Electrical Specifications
10. A08 230 208 1 A10 A15 W30A1 BOO BOZ 06 230 208 3 15 W30A1 COZ 15 W36A1 AOZ AQ05 A08 230 208 1 A10 A15 W36A1 BOO BOZ 06 BO9 B15 W36A1 COO COZ 15 W42A1 00 02 A05 A10 230 208 1 A15 A20 W42A1 BOO BOZ B09 B15 B18 W42A1 C00 COZ cog C15 W48A1 00 02 A05 A10 230 208 1 A15 A20 W48A1 BOO BOZ B09 B15 B18 W48A1 COO COZ cog C15 W60A1 00 AOZ A05 A10 230 208 1 A15 A20 W60A1 BOO BOZ 09 15 18 W60A1 COO COZ 9 15 70 1 00 AOZ 05 10 230 208 1 15 20 W70A1 BOO BOZ B09 B15 B18 W70A1 COO COZ cog C15 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors Based on 75C copper wire All wiring must conform to the National Electrical Code and all local codes G These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electrical code latest version Article 310 for power conductor sizing 230 208 1 230 208 1 230 208 3 460 3 3 230 208 3 10 10 29 230 208 3 aaa 29 230 208 3 10 10 29 230 208 3 10 10 230 208 3
11. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum Models W17 W24 as approved for zero inch clearance to the supply duct For model series W30 W36 W42 W48 W60 and W70 a 1 4 inch clearance to combustible material for the first three feet of duct attached to the outlet air frame is required See Wall Mounting Instructions and Figures 3 and 4 for further details Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity Some installations may not require any return air duct A metallic return air grille is required with installations not requiring a return air duct The spacing between louvers on the grille shall not be larger than 5 8 inch Any grille that meets with 5 8 inch louver criteria may be used It is recommended that Bard Return Air Grille Kit RG2 through RG5 or 2 through 5 be installed when no return duct is used Contact distributor or factory for ordering information If using a return air filter grille filters must be of sufficient size to allow a maximum velocity of 400 fpm NOTE fno return air duct is used applicable installation codes may limit this cabinet to installation only in a single story structure FILTERS A inch throwaway filter is standard with each unit The filter slides into position making it easy to service This filter can be serviced
12. left side compressor and controls for the left unit and WA right side compressor and controls for right unit See W A Specification S3397 amp W L Specification S3400 Manual 2100 508F Page 60f25 MODEL W17A L WIDTH DEPTH HEIGHT D FIGURE 2 Dimensions of Basic Unit for Architectural and Installation Requirements Nominal 5 W18A 33 300 17 125 70 563 7 88 19 88 11 88 19 88 35 00 11 00 25 75 20 56 26 75 28 06 29 25 27 00 2 63 34 13 22 06 10 55 4 19 12 00 5 00 W24A L W30A L W36A L 38 200 17 125 70 563 7 88 27 88 13 88 27 88 40 00 11 00 25 75 17 93 26 75 28 75 29 25 27 00 2 75 39 19 22 75 9 14 4 19 12 00 5 00 W42A L Wasa L 42 075 22 432 84 875 9 88 29 88 15 88 29 88 43 88 13 63 31 66 30 00 32 68 26 94 34 69 32 43 3 37 42 88 23 88 10 00 1 44 16 00 1 88 W60A L W70A L 42 075 22 432 94 875 9 88 29 88 15 88 29 88 43 88 13 63 41 66 30 00 42 68 36 94 44 69 42 43 3 37 42 88 33 88 10 00 1 44 16 00 1 88 dimensions are in inches Dimensional drawings are not to scale
13. INSTALLATIONS SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN FLASHING 5 RE RAFTER FINISHED CEILING SURFACE SUPPLY AIR DUCT E SUPPLY AIR DUCT W GRILLE FINISHED CEILING SURFACE RETURN AIR RETURN AIR OPENING GRID OPENING W GRILLE OUTSIDE WALL FREE AIR FLOW DUCTED SUPPLY NO DUCT RETURN AT UNIT SUPPLY DUCT MAYBE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN 2 FLASHING HANE RAFTERS RAFTERS SUPPLY AIR DUCT A SUPPLY AIR Ng 2 7 LOWERED FINISHED CEILING EET CEILING SURFACE GRILLE FINISHED CEILING RETURN AIR CLOSET W LL SUREAGE WALL SLEEVE WALL 5 WALL SLEEVE RETURN AIR GRILLE RETURN AIR OUTSIDE 7 RAISED FLOOR RETUR WALL WALL RETURN AIR Ww FALSE WALL INSTALLATION CLOSET INSTALLATION MIS 550 B Manual 2100 508F Page 13 of 25 WIRING MAIN POWER Refer to the unit rating plate for wire sizing information and maximum fuse or type circuit breaker size Each outdoor unit is marked with a Minimum Circuit Ampacity This means
14. West Street 13th Floor New York NY 10036 Telephone 212 642 4900 Fax 212 302 1286 American Society of Heating Refrigeration and Air Conditioning Engineers Inc 1791 Tullie Circle N E Atlanta GA 30329 2305 Telephone 404 636 8400 Fax 404 321 5478 National Fire Protection Association Batterymarch Park P O Box 9101 Quincy MA 02269 9901 Telephone 800 344 3555 Fax 617 984 7057 Manual 2100 508F Page 3 of 25 WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE X X X X A 42 A 10 MODEL NUMBER REVISIONS KW CAPACITY un 1 VOLTS 8 PHASE 30 2 Ton A 230 208 60 1 36 3Ton B 230 208 60 3 42 3 460 60 3 48 4 Ton 60 5Ton A Right Hand Air Conditioner 70 6 Ton L LeftHand Air Conditioner VENTILATION OPTIONS Barometric Fresh Air Damper Standard Blank off Plate Motorized Fresh Air Damper Commercial Ventilator Motorized with Exhaust lt See Spec Sheet 53397 Economizer Internal Fully Modulating with Exhaust Energy Recovery Ventilator Motorized with Exhaust CONTROL MODULES See Spec Sheet 53397 COIL OPTIONS COLOR OPTIONS X Standard X Beige Standard 1 Phenolic Coated Evaporator 1 White 2 Phenolic Coated Condenser 4 Buckeye Gray 3 Phenolic Coated Evaporator 5 DesertBrown and Condenser 6 DarkBronze A Aluminum OUTLET OPTIONS S Stainless St
15. filters at all times Also not to needlessly close off supply and return air registers This reduces airflow through the system which shortens equipment service life as well as increasing operating costs N Check all power fuses or circuit breakers to be sure they are the correct rating 95 Periodic cleaning of the outdoor coil to permit full and unrestricted airflow circulation is essential SEQUENCE OF OPERATION COOLING Circuit R Y makes at thermostat pulling in compressor contactor starting the compressor and outdoor motor The G indoor motor circuit 18 automatically completed 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 contact for the strip heat and blower operation On a call for second stage heat R W2 makes bringing on second heat contactor if so equipped COMPRESSOR CONTROL MODULE The compressor control module is standard on all models covered by this manual The compressor control module is an anti short cycle lockout timer with high and low pressure switch monitoring and alarm relay output Adjustable Delay On Make And Break Timer 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 When the delay on make is complete and the high pressure switch an
16. from the outside by removing the filter access panel 1 inch washable filter and 2 inch pleated filter are also available as optional accessories The internal filter brackets are adjustable to accommodate the 2 inch filter by bending two 2 tabs down on each side of the filter support bracket FRESH AIR INTAKE units are built with fresh air inlet slots punched in the service door If the unit is equipped with a fresh air damper assembly the assembly is shipped already attached to the unit damper blade is locked in the closed position To allow the damper to operate the maximum and minimum blade position stops must be installed See Figure 1 capacity efficiency and cost of operation information is based upon the fresh air blank off plate in place and is recommended for maximum energy efficiency The blank off plate is available upon request from the factory and is installed in place of the fresh air damper shipped with each unit CONDENSATE DRAIN A plastic drain hose extends from the drain pan at the top of the unit down to the unit base There are openings in the unit base for the drain hose to pass through In the event the drain hose is connected to a drain system of some type it must be an open or vented type system to assure proper drainage FIGURE 1 FRESH AIR DAMPER 22 22 2 A v C BLADE IS LOCKED CLOSED FOR SHIPPING V 7 D P Pd ZZ
17. properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes Manual 2100 508F Page 21 of 25 5 RECOMMENDED AIRFLOW Rated Rated Recommended Factory Speed ESP Airflow Range Connection W17L EOM W18L W24A W24L W24L W30A W30L 1000 700 950 950 Hoh O Rated CFM and ESP on high speed tap TABLE 6 INDOOR BLOWER PERFORMANCE W17A L W18ALL W30A L W36A L W42A L W48A L W60A L W70A L W24A L High Speed High Speed Low Speed High Speed Low Speed High Speed Low Speed Dry Wet Dry Wet Dry Wet Dry Wet Dry Wet Dry Wet Dry Wet Coil Coil Coil Coil Coil Coil Coil Coil Coil Coil Coil Coil Coil Coil TABLE 7 MAXIMUM ESP OF OPERATION ELECTRIC HEAT ONLY W17ALL Model W18A L W24A L WS30A L W36A L W42A L W48A L W60A L W70A L ses se vion T tov s se io 50 50 50 50 45 50 35 i 50 50 50 50 45 40 i i 50 50 45 40 Values shown for units equipped with standard 1 throwaway filter or 1 inch washable filter Derate ESP by 15 for 2 inch pleated filters Manual 2100 508F Page 220125 8 ELECTRIC HEAT 240V 1 208V 1 240V 3 208V 3 460V 3 BTUH Amps BTUH 250 rt et E peres LOI e Manual 2100 508 23 of 25
18. three phase compressors are wired identically internally As result once the correct phasing is determined for a specific system or installation connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction The direction of rotation of the compressor may be changed by reversing any two line connections to the unit Manual 2100 508F Page 160f25 PHASE MONITOR units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal The phase monitor in this unit is equipped with two LEDs If the Y signal is present at the phase monitor and phases are correct the green LED will light If phases are reversed the red fault LED will be lit and compressor operation is inhibited If a fault condition occurs reverse two of the supply leads to the unit Do not reverse any of the unit factory wires as damage may occur CONDENSER FAN OPERATION Applies to W42 W48 W60 and W70 models only The condenser fan motor on 230 208 volt one and three phase 60 HZ units is a two speed motor that comes factory wired on high speed for peak performance If ambient conditions permit it can be reconnected to low speed red wire for lower sound level See wiring diagram 50 HZ models must have fan wired on low speed These models are factory wired on low speed SERVICE HINTS 1 Caution owner operator to maintain clean air
19. zero but must be reclaimed due to its global warming potential 8 R 410A compressors use polyolester oil Polyol Ester oil is hygroscopic it will rapidly absorb moisture and strongly hold this moisture in the oil 10 A liquid line dryer must be used even a deep vacuum will not separate moisture from the oil 11 Limit atmospheric exposure to 15 minutes 12 If compressor removal is necessary always plug compressor immediately after removal Purge with small amount of nitrogen when inserting plugs TOPPING OFF SYSTEM CHARGE If aleak has occurred in the system Bard Manufacturing recommends reclaiming evacuating see criteria above and charging to the nameplate charge If done correctly topping off the system charge can be done without problems With R 410A there are no significant changes in the refrigerant composition during multiple leaks and recharges R 410A refrigerant is close to being an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant charge in the system may be used after leaks have occurred and then top off the charge by utilizing the pressure charts on the inner control panel cover as a guideline START UP REMEMBER When adding R 410A refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to insure optimal system performance Refer to instructions for the cylinder that is being utilized fo
20. 7 deg WB High Side 361 383 406 429 453 478 504 530 558 586 85 deg DB Low Side 140 142 144 146 147 149 151 152 154 156 72 deg WB High Side 374 396 420 444 469 495 522 549 578 607 75 deg DB Low Side 118 119 121 122 123 125 127 130 132 135 62 deg WB High Side 326 347 370 392 416 440 465 489 516 542 W70A1 L1 80 deg DB Low Side 126 127 129 131 132 134 136 139 141 144 67 deg WB High Side 334 356 379 402 427 451 477 502 529 556 85 deg DB Low Side 130 131 134 136 137 139 141 144 146 149 72 deg WB High Side 346 368 392 416 442 467 494 520 548 575 Low side pressure 4 PSIG High side pressure 10 PSIG Tables are based upon rated CFM airflow 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 Manual 2100 508F Page 19 of 25 TABLE 3 Electrical Specifications W A Series Single Circuit 7 P Maximum No Field Minimum Maximum Field External Fuse Ground Model Power Circuit External Fuse Power 1 Wire Size Circuits Ampacity or Ckt Brkr Wire Size W17 18A1 00 02 A05 A08 A10 24 1 A00 02 A05 A08 A10 W24A4 BOO BOZ Bos 24 1 COO COZ W30A1 00 AOZ A05
21. E C LOE NNWINWW OL SNOISNSIAIKI CIHHICOH dOL a dO HLLONGI ONDTI INO JO HIM WAS 5 ONILNNOW LV0ZM L109M EV09M LT89M LIZYM 9 AYNDSIA Manual 2100 508F 10 of 25 Page FIGURE 4 ELECTRIC HEAT CLEARANCE W30A1 W30L1 W36A1 W36L1 W42A1 W42L1 W48A1 W48L1 W60A1 W60L1 W70A1 W70L1 TYPTCAL BUILDING x OUTSIDE SHEETING WALL FRAME INSIDE SHEETING Pu SUPPLY AIR DUCT 1 1 4 MIN SUPPLY AIR DUCT SEE NITE FLANGE OF WALL MOUNTED UNIT MIS 277 A SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1 4 INCH S 4 CLEARANCE TO COMBUSTIBLE SURFACES 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 a fire causing damage injury or death Manual 2100 508F Page 11 of 25 FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 MOUNTING INSTRUCTIONS FACTORY SUPPLIED RAIN FLASHING SUPPLY AIR OPENING RETURN AIR OPENING
22. INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS MODELS W17A1 W17L1 W18A1 W18L1 W24A1 W24L1 W30A1 W30L1 W36A1 W36L1 W42A1 W42L1 W48A1 W48L1 W60A1 W60L1 W70A1 W70L1 Bard Manufacturing Company Inc Manual 2100 508F Bryan Ohio 43506 Supersedes 2100 508 File Volume Tab 16 Since 1914 Moving ahead just as planned Date 12 15 11 Climate Control Solutions Page 1 of 25 Contents Getting Other Information and Publications Wall Mount General Information Wall Mount Model Nomenclature Shipping Damage sensig cce ree General Duct Work Filters Fresh Air Intake Condensate Drain Installation Instructions Wall Mounting Information Mounting the Clearances Required Minimum Clearances Wiring Main Power Wiring Low Voltage Wiring Figures Figure 1 Fresh Air Damper Assembly Figure 2 Unit Dimensions Figure Mounting Instructions Figure Mounting Instructions W17 36 Figure Mounting Instructions W42 48 60
23. ISNIN A SNOT ONDPTICN 2 JO HUM WAS SNOILONUYLSNI ONILNNOW L19 M LV9 M L10 M LVOEM ge aunboi4 LL 10 on 5 co gt 29Lt SIA IOI 9815 457 ALISOddO NO SI SSHOOV ualvH ANY S IOHINOO LINN THA NAAOHSS LINN 15 HO ONIHSV 14 dOL YIANN ANY SSIEONNZ 12 ONLLNNOW SCIS JHL CIHOV ld 39 3NOOT IIS JO Ava V JINVHLCSONSIAINOO SI LI SALON SNINSdO HIN Nenad AlddNS SWAN gav L SNaNOD oa SI LONA JO 53415 YNO TIY NO unns WAS WVWOA ONIHSV 14 pue BUILEAO IE SHUM 102 8 VOZM UO be S uorsueuli z 8 F ZE T li i ia M 1 AL o aH B E Y 1 OE LOT urged Y 1 Y Buiuedo Ahs 55900 ualv3H v a TNM STWRALW 5 SONVYV TD CIECINSIAINOOHH OL SNOISNSIAIC CIHICOH S IVIHZLIVIW dOL WOY NIN sitz
24. SHROUD 1 Disconnect all power to the unit 2 Remove the screws holding both grilles one on each side of unit and remove grilles 3 Remove screws holding fan shroud to condenser and bottom Nine 9 screws 4 Unwire condenser fan motor 5 Slide complete motor fan blade and shroud assembly out the left side of the unit 6 Service motor fan as needed 7 Reverse steps to reinstall 2 COOLING PRESSURE TABLE Air Temperature Entering Outdoor Coil Return Air Temperature 75 75 deg DB Low Side 127 m 133 E 137 138 140 141 143 62 deg WB High Side 295 E 6 360 E 407 432 457 484 511 W17A1 L1 80 deg DB Low Side 136 138 140 142 145 146 148 150 151 153 W18A1 L1 67 deg WB High Side 303 324 346 369 400 417 443 469 496 524 85 deg DB Low Side 141 143 145 147 149 151 153 155 156 158 72 deg WB High Side 314 335 358 382 407 432 459 485 513 542 75 deg DB Low Side 121 123 125 127 130 132 134 135 137 138 62 deg WB High Side 326 350 375 401 426 450 477 502 527 553 W24A1 L1 80 deg DB Low Side 129 132 134 136 137 141 143 144 146 148 67 deg WB High Side 334 359 385 411 431 462 489 515 541 567 85 deg DB Low Side 134 137 139 141 144 146 148 149 151 153 72 deg WB High Side 346 372 398 425 452 478 506 533 560 587 75 deg DB Low Side 121 122 125 127 130 132 134 136 137 138 62 deg WB High Side 335 357 380 404 429 454 481 509 537 566 W30A1 L1 80 deg DB Low Side 129 131 134 136 139 141 143 145 146 148 67 deg WB Hi
25. W A 20 Table 4 Electrical Specifications W L 21 Table 5 Recommended Airflow 22 Table6 Indoor Blower Performance 22 Table 7 Maximum ESP Electric Heat Only 22 Table8 Electric Heat 23 Table9 Optional Accessories 24 Table 10 Vent amp Control Options 25 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 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 Summer Air Conditioning Duct Design for Residential ACCA Manual D Winter and Summer Air Conditioning and Equipment Selection FOR MORE INFORMATION CONTACT THESE PUBLISHERS ACCA ANSI ASHRAE NFPA Air Conditioning Contractors of America 1712 New Hampshire Ave N W Washington DC 20009 Telephone 202 483 9370 Fax 202 234 4721 American National Standards Institute 11
26. all models It is imperative to match the correct pressure table to the unit by model number See Table 2 Manual 2100 508F Page 17 of 25 TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS Shown in Figure 8 is the correct fan blade setting for proper air delivery across the outdoor coil Refer to Table 1 for unit specific dimension Any service work requiring removal or adjustment in the fan and or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly FIGURE 8 FAN BLADE SETTING MIS 1724 TABLE 1 FAN BLADE DIMENSION Dimension A 17 1 W17L1 W18A1 W18L1 1 00 W24A1 W24L1 W30A1 W30L1 425 W36A1 W36L1 W42A1 W42L1 WA48A1 W48L1 1 15 W60A1 W60L1 W70A1 W70L1 Manual 2100 508F Page 18 0f25 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 The following pressure tables show nominal pressures for the units Since many installation specific situations can affect the pressure readings this information should only be used by certified technicians as a guide for evaluating proper system performance They shall not be used to adjust charge If charge is in doubt reclaim evacuate and recharge the unit to the serial plate charge REMOVAL OF FAN
27. d low pressure switch is closed the compressor contactor is energized Upon shutdown the delay on break timer starts and prevents restart until the delay on break and delay on make periods have expired During routine operation of the unit with no power interruptions the compressor will operate on demand with no delay High Pressure Switch and Lockout Sequence If the high pressure switch opens the compressor contactor will de energize immediately The lockout timer will go into a soft lockout and stay in soft lockout until the high pressure switch closes and the delay on break time has expired If the high pressure switch opens again in this same operating cycle the unit will go into manual lockout condition and the alarm relay circuit will energize Recycling the wall thermostat resets the manual lockout Low Pressure Switch Bypass and Lockout Sequence If the low pressure switch opens for more than 120 seconds the compressor contactor will de energize and go into a soft lockout Regardless the state of the low pressure switch the contactor will reenergize after the delay on make time delay has expired If the low pressure switch remains open or opens again for longer than 120 seconds the unit will go into manual lockout condition and the alarm relay circuit will energize Recycling the wall thermostat resets the manual lockout Alarm Relay Output Alarm terminal is output connection for applications where alarm relay is e
28. dequate Condenser Airflow MODELS W42A W48A W60A W70A 20 20 W42L W48L W60L W70L 20 20 A WARNING LEFT SIDE RIGHT SIDE W17A W18A W24A W30A W36A 15 20 W17L W18L W24L W30L W36L 20 15 Failure to provide the 1 4 inch clearance between the supply duct and a combustible surface for the first 3 feet of duct can result in fire causing damage injury or death 6 Position unit in opening and secure with 5 16 lag bolts use 7 8 inch diameter flat washers on the lag bolts 7 Secure rain flashing to wall and caulk across entire length of top See Figure 3 8 For additional mounting rigidity the return air and supply air frames or collars can be drilled and screwed or welded to the structural wall itself depending upon wall construction Be sure to observe required clearance if combustible wall 9 On side by side installations maintain a minimum of 20 inches clearance on right side to allow access to control panel and heat strips and to allow proper airflow to the outdoor coil Additional clearance may be required to meet local or national codes Minimum Clearances Required to Combustible Materials SUPPLY AIR DUCT CABINET MODELS FIRST THREE FEET W17A L W18A L W24A L o o W30A L W36A L 1 4 0 WA42A W48A L W60A L W7OA L 1 4 0 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
29. door When shut a padlock may be placed through the hole in the tab preventing entry See Start Up section for important information on three phase scroll compressor start ups See Tables 3 amp 4 for Electrical Specifications Manual 2100 508F Page 140 25 WIRING LOW VOLTAGE WIRING 230 208V 1 phase and 3 phase equipment dual primary voltage transformers All equipment leaves the factory wired on 240V tap For 208V operation reconnect from 240V to 208V tap The acceptable operating voltage range for the 240 and 208V taps are TAP RANGE 240 253 216 208 220 187 NOTE The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load maximum amperage operating condition For wiring size and connections refer to Wiring Manual 2100 507 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 Userecovery equipment rated for R 410A refrigerant 3 Use manifold gauges rated for R 410A 800 psi 250 psi low 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 this higher pressure 7 R 410A has an ozone depletion potential of
30. e 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 several other types of compressors will only compress in one rotational direction Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction However three phase compressors will rotate in either direction depending upon phasing of the power Since there is a 50 50 chance of connecting power in such a way as to cause rotation in the reverse direction verification of proper rotation must be made Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized Reverse rotation also results in an elevated sound level over that with correct rotation as well as substantially reduced current draw compared to tabulated values Verification of proper rotation must be made at the time the equipment is put into service If improper rotation is corrected at this time there will be no negative impact on the durability of the compressor However reverse operation for over one hour may have a negative impact on the bearing due to oil pump out NOTE If compressor is allowed to run in reverse rotation for several minutes the compressor s internal protector will trip All
31. eel X Front Standard T Top Outlet W30A W36A Only FILTER OPTIONS X Throwaway Standard W One Inch Washable P Two Inch Pleated NOTE Vent options X B and M are without exhaust capability May require separate field supplied barometric relief in building 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 The refrigerant system is completely assembled and charged All internal wiring is complete The unit is designed for use with or without duct work Flanges are provided for attaching the supply and return ducts These instructions explain the recommended method to install the air cooled self contained unit and the electrical wiring connections to the unit Manual 2100 508F Page 40 25 These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation Note particularly Starting Procedure and any tags and or labels attached to the equipment While these instructions are intended as a general recommended guide they do not supe
32. g C15 W48L1 00 02 A05 A10 A15 WA2L1 00 02 59 26 30 230 208 1 10 W48L1 BOO BOZ Bog 230 208 3 15 w W48L1 COO COZ cog C15 W60L1 00 02 A05 A10 A15 ONN 230 208 1 10 W60L1 BOO BOZ Bog 230 208 3 15 w 0 W60L1 COZ cog C15 W70L1 02 A05 A10 A15 A10 rer ONN 230 208 1 10 W70L1 BOZ Bog 230 208 3 15 owoja w 0 W70L1 COZ cog C15 A05 A15 10 rep een W42L1 BOO BOZ B09 230 208 3 B15 W42L1 COZ Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors Based on 75C copper wire All wiring must conform to the National Electrical Code and all local codes G These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electrical code latest version Article 310 for power conductor sizing Caution When more than one field power circuit is run through one conduit the conductors must be derated Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three 3 current carrying conductors are in a raceway outlet supply option is available only factory installed and only on the selected models IMPORTANT While this electrical data is presented as a guide it is important to electrically connect
33. gh Side 344 366 390 414 436 466 493 522 551 581 85 deg DB Low Side 134 136 139 141 144 146 148 150 151 153 72 deg WB High Side 356 379 404 428 455 482 510 540 570 601 75 deg DB Low Side 123 125 127 129 131 133 136 138 140 143 62 deg WB High Side 350 372 396 420 445 470 496 524 552 581 W36A1 L1 80 deg DB Low Side 132 134 136 138 140 142 145 148 150 153 67 deg WB High Side 359 382 406 431 452 482 509 537 566 596 85 deg DB Low Side 137 139 141 143 145 147 150 153 155 158 72 deg WB High Side 372 395 420 446 472 499 527 556 586 617 75 deg DB Low Side 128 130 132 133 135 137 138 140 142 144 62 deg WB High Side 341 362 383 406 429 453 480 506 534 564 W42A1 L1 80 deg DB Low Side 137 139 141 142 142 146 148 150 152 154 67 deg WB High Side 350 371 393 416 435 465 492 519 548 578 85 deg DB Low Side 142 144 146 147 149 151 153 155 157 159 72 deg WB High Side 362 384 407 431 455 481 509 537 567 598 75 deg DB Low Side 125 127 129 131 133 136 137 140 143 146 62 deg WB High Side 349 370 391 415 440 467 495 526 557 590 W48A1 L1 80 deg DB Low Side 134 136 138 140 142 145 147 150 153 156 67 deg WB High Side 358 379 401 426 454 479 508 539 571 605 85 deg DB Low Side 139 141 143 145 147 150 152 155 158 161 72 deg WB High Side 371 392 415 441 467 496 526 558 591 626 75 deg DB Low Side 126 128 130 132 133 135 137 137 139 141 62 deg WB High Side 352 373 396 418 442 466 491 517 544 571 W60A1 L1 80 deg DB Low Side 135 137 139 141 142 144 146 147 149 151 6
34. mployed This terminal is powered whenever the compressor is locked out due to HPC or LPC sequences as described NOTE Both high and low pressure switch controls are inherently automatic reset devices The high pressure switch and low pressure switch cut out and cut in settings are fixed by specific air conditioner unit model The lockout features both soft and manual are a function of the Compressor Control Module 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 on Make DOM timing on power up and after power interruptions is equal to 2 minutes plus 10 of Delay on Break DOB setting 0 5 minute 30 seconds DOB 123 second DOM 1 0 minute 60 seconds DOB 126 second DOM 2 0 minute 120 seconds DOB 132 second DOM 3 0 minute 180 seconds DOB 138 second DOM 4 0 minute 240 seconds DOB 144 second DOM 5 0 minute 300 seconds DOB 150 second DOM During routine operation of the unit with no power interruptions the compressor will operate on demand with no delay Typical Settings for Dual Unit Installation Unit 1 DOB set at 2 minutes and DOM is 132 seconds Unit 2 DOB set at 4 minutes and DOM is 144 seconds PRESSURE SERVICE PORTS High and low pressure service ports are installed on all units so that the system operating pressures can be observed A pressure table can be found later in the manual covering
35. r proper method of liquid extraction A WARNING Failure to conform to these practices could lead to damage injury or death SAFETY PRACTICES 1 Never mix R 410A with other refrigerants 2 Use gloves and safety glasses Polyol Ester oils can be irritating to the skin and liquid refrigerant will freeze the skin 3 Never use air and R 410A to leak check the mixture may become flammable 4 Do not inhale R 410A the vapor attacks the nervous system creating dizziness loss of coordination and slurred speech Cardiac irregularities unconsciousness and ultimate death can result from breathing this concentration 5 Donot burn R 410A This decomposition produces hazardous vapors Evacuate the area if exposed 6 Use only cylinders rated DOT4BA 4BW 400 7 Never fill cylinders over 80 of total capacity 8 Store cylinders in a cool area out of direct sunlight 9 Never heat cylinders above 125 F 10 Never trap liquid R 410A in manifold sets gauge lines or cylinders R 410A expands significantly at warmer temperatures Once a cylinder or line is full of liquid any further rise in temperature will cause it to burst Manual 2100 508F Page 15 of 25 START UP Continued IMPORTANT INSTALLER NOTE For improved start up performance wash the indoor coil with a dish washing detergent HIGH PRESSURE SWITCH All W A W L wall mounted air conditioner series models are supplied with a remot
36. rsede any national and or local codes in any way Authorities having jurisdiction should be consulted before the installation is made See Page 3 for information on codes and standards Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America ACCA The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type NFPA No and Residence Type Warm Air Heating and Air Conditioning Systems NFPA No 90 Where local regulations are at a variance with instructions installer should adhere to local codes DUCT WORK duct work supply and return must be properly sized for the design airflow requirement of the equipment Air Conditioning Contractors of America ACCA is an excellent guide to proper sizing 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 6 Design the duct work according to methods given by the Air Conditioning Contractors of America ACCA When duct runs through unheated spaces it should be insulated with a minimum of one inch of insulation Use insulation with a vapor barrier on the outside of the insulation
37. that the field wiring used must be sized to carry that amount of current Depending on the installed KW of electric heat there may be two field 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 Each unit and or wiring diagram will be marked Use Copper Conductors Only These instructions must be adhered to Refer to the National Electrical Code NEC for complete current carrying capacity data on the various insulation grades of wiring material All wiring must conform to NEC and all local codes The electrical data lists fuse and wire sizes 75 C copper for all models including the most commonly used heater sizes Also shown are the number of field power circuits required for the various models with heaters The unit rating plate lists a Maximum Time Delay Relay Fuse or 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 The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect 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 This tab will now line up with the slot in the
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