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50VL---A
Performancet14SEER Single---Packaged AirConditioner
System withPuron ® (R---410A) Refrigerant
Single and Three Phase
2---5 Nominal Tons (Sizes 24---60)
Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
NOTE: Installer: Make sure the Owner’s Manual and Service
Instructions are left with the unit after installation.
TABLEOFCONTENTS
PAGE
SAFETY CONSIDERATIONS ....................... 1--2
INTRODUCTION ................................... 2
R
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Step2—ProvideUnitSupport ! IMPORTANT: The unit must be secured to the curb by installing WARNING screwsthrough thebottom ofthecurb flangeand intotheunitbase ELECTRICALSHOCKHAZARD rails. When installing large base units onto the common curb, the Failure to follow this warning could result in personal screwsmustbeinstalled beforeallowing thefull weightof theunit injuryordeath. to reston thecurb. A minimum ofsix screws arerequired forlarge base units. Failure to secure unit properly could result in
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A09462 Fig.2 -- 50VL--A24--36UnitDimensions 3 50VL--A
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A09463 Fig.3 -- 50VL--A42--60UnitDimensions 4 50VL--A
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Dashed lines show cross support B location for large basepan units. G C HVAC unit HVAC unit basepan base rails Sealing Gasket Roofcurb H F A Anchor screw Wood nailer* Flashing field supplied Roofcurb* Insulation (field supplied) Roofing material field supplied E D Cant strip field supplied A09413 SMALL/COMMON CURB *Provided with roofcurb A09090 ROOF CURB DETAIL B C SMALL SUPPLY BASE G AIR UNIT H A LARGE F BASE RETURN UNIT AIR E D UNIT PLACEMENT ON COMMON CURB A09094 A09415 SMALL OR LARGE B
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CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36" (914.4 mm) HAUTEUR MINIMUM SEAL STRIP MUST BE IN BANDE SCELLANT DOIT ÊTRE PLACE BEFORE PLACING EN PLACE AVANT DE PLACER UNIT HEIGHT L'UNITÉ SUR LA BASE DE TOIT UNIT ON ROOF CURB HAUTEUR D'UNITÉ DETAIL A VOIR DÉTAIL A SEE DET
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INSPECTION Step3—ProvideClearances The required minimum serviceclearances areshown in Fig. 2 and Prior to initial use, and at monthly intervals, all rigging shackles, 3. Adequate ventilation and outdoor air must be provided. The clevispins,andstrapsshouldbevisuallyinspectedforanydamage, outdoor fan draws air through the outdoor coil and discharges it evidence of wear, structural deformation, or cracks. Particular through the top fan grille. Be sure that the fan discharge does not attention shoul
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Air Conditioning Contractors National Association Step6—ConnectCondensateDrain (SMACNA) and Air Conditioning Contractors Association NOTE: When installing condensate drain connection be sure to (ACCA) minimum installation standards for residential comply with local codes and restrictions. heating and airconditioning systems. Model 50VL--A disposes of condensate water through a 3/4 in. 5. Secure all ducts to building structure. Flash, weatherproof, NPT fitting which exits through the base on the
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! CAUTION UNITCOMPONENTDAMAGEHAZARD Failure to follow this caution may result in damage to the unitbeinginstalled. 1. Make all electrical connections in accordance with NFPA70 (NEC)(latestedition)and local electricalcodes governing such wiring. In Canada, all electrical connections must be in accordance with CSA standard C22.1 Canadian Electrical Code Part 1 and applicable local codes. Refer to unit wiring diagram. 2. Use only copper conductor for connections between field--supplied electrical d
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SPECIALPROCEDURESFOR208--VOPERATION HIGH VOLTAGE POWER LEADS ! POWER WARNING (SEE UNIT WIRING SUPPLY LABEL) ELECTRICALSHOCKHAZARD 3-PHASE SHOWN 1-PHASE USES Failure to follow this warning could result in personal TWO POWER injuryordeath. EQUIP GR LEADS FIELD-SUPPLIED FUSED DISCONNECT Before installing or servicing system, always turn off main power to system and install lockout tag. With disconnect CONTROL BOX switch open, move black wire from transformer (3/16 WHT(W1) W1 in.)(4.8 mm) terminal
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Table1–PhysicalData--Unit50VL--A UNITSIZE 24 30 36 42 48 60 NOMINAL CAPACITY(ton) 2 2---1/2 3 3---1/2 4 5 SHIPPING WEIGHT* lb. 295 307 365 421 439 467 SHIPPING WEIGHT* (kg) 134 139 166 191 199 212 Scroll COMPRESSORS Quantity 1 REFRIGERANT(R---410A) Quantity lb 6.0 5.6 9.5 8.8 9.4 12.5 Quantity (kg) 2.7 2.5 4.3 4.0 4.3 5.7 REFRIGERANTMETERING DEVICE TXV OUTDOORCOIL Rows...Fins/in. 1...21 1...21 2...21 2...21 2...21 2...21 Face Area (sq ft) 11.9 13.6 15.4 13.6 17.5 21.4 OUTDOORFAN Nominal Cfm 2500
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2. Repair leak following accepted practices. PRE--START--UP NOTE: Install a filter drier whenever the systemhas been opened for repair. ! WARNING 3. Add a smallcharge ofPuron (R--410A)refrigerant vaporto system and leak--test unit. ENVIRONMENTAL, FIRE, EXPLOSION, 4. Recover refrigerant from system and evacuate to 500 ELECTRICALSHOCKHAZARD micronsifno additionalleaksarefound. Failure to follow this warning could result in personal 5. Charge unit with Puron (R--410A) refrigerant, using an injuryor
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Proceed as follows: shipped loose with vinyl caps and are located in the control box, near the interface fan board (IFB) (See Fig. 11). 1. Remove caps from low-- and high--pressure service fittings. SINGLECOOLINGFANSPEEDSET--UP(Dehumidi- 2. Using hoses with valve core depressors, attach low-- and high--pressure gauge hoses to low-- and high--pressure ficationfeaturenotused) service fittings, respectively. To change cooling speed: 3. Startunitand letrun untilsystem pressuresstabilize. 1. Remove t
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P3 SDL Table3–ColorCodingforIndoorFanMotorLeads HIGH LOW COM QC5 QC4 QC3 Black = High Speed Orange = Med--High Speed Red = Med Speed KL KZ DCR QCR Pink = Med--Low Speed Blue = Low Speed C 07 09 0L0 08 R13 C8 R11 Q1 ALO D2 QC1 Q3 AL2 ! WARNING C9 RL C4 G1 01 ELECTRICALSHOCKHAZARD Failure to follow this warning could result in personal G2 QIL Z2 06 04 A7 R9 AB A15 injuryordeath. C0 F1 Z1 Disconnect electrical power to the unit and install lockout U1 tagbeforechangingblowerspeed. R4 RL4 C3 D5 D3 C7
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15 Table4–DryCoilAirDelivery*-- Horizontal Discharge-- Unit50VL--A24--60 EXTERNAL STATIC PRESSURE(IN.W.C.) UNIT MOTORSPEED WIRECOLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Low Blue CFM 754 650 538 429 --- --- --- --- --- Med-Low Pink CFM 851 777 675 591 475 --- --- --- --- 1 50VL-A24 Medium Red CFM 941 851 774 684 576 479 --- --- --- Med-High Orange CFM 1009 917 840 759 667 577 447 --- --- High Black CFM 1241 1167 1111 1036 969 881 818 731 640 Low Blue CFM 741 638 547 415 --- --- --- --- --- Med-Lo
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16 50VL--A Table6–50VL--AHorizontalandDownflowDischargeWetCoilPressureDrop(IN.W.C.) STANDARDCFM(SCFM) UNIT SIZE 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 24 0.030 0.037 0.044 0.053 0.063 - - - - - - - - - - - - 30 - - - 0.053 0.063 0.072 0.081 0.105 - - - - - - - - - 36 - - - 0.055 0.060 0.090 0.100 0.110 0.140 - - - - - - - - 42 - - - - 0.045 0.050 0.060 0.065 0.075 0.080 0.090 0.094 0.110 - - - - 48 - - - - - - 0.041 0.063 0.085 0.100 0.104 0.110 0.120 0.
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A11004 Fig.12 -- ConnectionWiringDiagram208/230--1--60 17 50VL--A
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A11003 Fig.12Cont. -- LadderWiringDiagram208/230--1--60 18 50VL--A
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A11010 Fig.13 -- ConnectionWiringDiagram208/230--3--60 19 50VL--A
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A11009 Fig.13Cont. -- LadderWiringDiagram208/230--3--60 20 50VL--A
