Model YLAA Air-Cooled Scroll Chillers Style A - Johnson Controls

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Electrical NotesNOTES:1. Minimum Circuit Ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of therated load amps for all other loads included in the circuit, per N.E.C. Article 430‐24. If the optional Factory MountedControl Transformer is provided, add the following MCA values to the electrical tables for the system providing powerto the transformer: ‐17, add 2.5 amps; ‐28, add 2.3 amps; ‐40, add 1.5 amps, ‐46, add 1.3 amps; ‐58, add 1 amps.2. The minimum recommended disconnect switch is based on 115% of the rated load amps for all loads included inthe circuit, per N.E.C. Article 440.3. Minimum fuse size is based upon 150% of the rated load amps for the largest motor plus 100% of the rated loadamps for all other loads included in the circuit to avoid nuisance trips at start‐up due to lock rotor amps. It is not recommendedin applications where brown outs, frequent starting and stopping of the unit, and/or operation at ambienttemperatures in excess of 95ºF (35ºC) is anticipated.4. Maximum fuse size is based upon 225% of the rated load amps for the largest motor plus 100% of the rated loadamps for all other loads included in the circuit, per N.E.C. Article 440-22.5. Circuit breakers must be UL listed and CSA certified and maximum size is based on 225% of the rated load amps forthe largest motor plus 100% of the rated load amps for all other loads included in the circuit. Otherwise, HACR‐typecircuit breakers must be used. Maximum HACR circuit breaker rating is based on 225% of the rated load amps forthe largest motor plus 100% of the rated load amps for all other loads included in the circuit.6. The “INCOMING WIRE RANGE” is the minimum and maximum wire size that can be accommodated by the unit wiringlugs. The (2) preceding the wire range indicates the number of termination points available per phase of the wirerange specified. Actual wire size and number of wires per phase must be determined based on the National ElectricalCode, using copper connectors only. Field wiring must also comply with local codes.7. A ground lug is provided for each compressor system to accommodate a field grounding conductor per N.E.C.Table 250‐95. A control circuit grounding lug is also supplied.8. The supplied disconnect is a “Disconnecting Means” as defined in the N.E.C. 100, and is intended for isolating theunit for the available power supply to perform maintenance and troubleshooting. This disconnect is not intended tobe a Load Break Device.9. Field Wiring by others which complies to the National Electrical Code & Local Codes.LEGENDACR-LINEC.B.D.E.DISC SWFACT MOUNT CBFLAHZMAXMCAMINMIN NFRLAS.P. WIREUNIT MTD SERV SWLRAACROSS THE LINE STARTCIRCUIT BREAKERDUAL ELEMENT FUSEDISCONNECT SWITCHFACTORY MOUNTED CIRCUIT BREAKERFULL LOAD AMPSHERTZMAXIMUMMINIMUM CIRCUIT AMPACITYMINIMUMMINIMUM NON FUSEDRATED LOAD AMPSSINGLE POINT WIRINGUNIT MOUNTED SERVICE (NON-FUSED DISCONNECTSWITCH)LOCKED ROTOR AMPSVoltage Code-17 = 200-3-60-28 = 230-3-60-40 = 380-3-60-46 = 460-3-60-58 = 575-3-6044 jOHNSON CONTROLS
FORM 150.62-eg3 (1108)INTENTIONALLY LEFT BLANKjOHNSON CONTROLS45
Page 1 and 2: Form 150.62-EG3 (1108)Model YLAA Ai
Page 3: IntroductionFORM 150.62-eg3 (1108)T
Page 7 and 8: Accessories and OptionsFORM 150.62-
Page 9: FORM 150.62-eg3 (1108)FAN DECKPOWER
Page 12 and 13: Selection Criteria and ProceduresGU
Page 14 and 15: Pump Selection CriteriaPump Selecti
Page 16 and 17: Pump Pressure Drop CurvesYLAA007050
Page 18 and 19: Single Pump CurvesKit A & FKit EKit
Page 20 and 21: Ratings - 60 HzMODEL: YLAA0070SE IP
Page 22 and 23: Ratings - 60 Hz - continuedMODEL: Y
Page 28 and 29: Part Load Ratings - Standard Effici
Page 30 and 31: Physical Data - EnglishModel Number
Page 32 and 33: Dimensions - Four Fan UnitsLFHPDWC1
Page 34 and 35: Dimensions - Six Fan UnitsLFHPDWC1C
Page 36 and 37: Dimensions - Ten Fan Units5/8" DIA.
Page 38 and 39: Isolator Locations - continuedBI, I
Page 40 and 41: Isolator DetailsONE INCH DEFLECTION
Page 42 and 43: Isolator Details - continuedELASTOM
Page 46 and 47: Electrical Data w/o PumpsCHILLERMOD
Page 48 and 49: Electrical Data w/o Pumps - continu
Page 50 and 51: Wiring LugsCHILLER MODEL VOLT HZYLA
Page 52 and 53: Electrical Data w/ PumpsCHILLERMODE
Page 54 and 55: Electrical Data w/ Pumps - continue
Page 60 and 61: CHILLERMODELVOLTHZPumpModelPumpMINI
Page 62 and 63: Wiring Diagram62 jOHNSON CONTROLS
Page 64 and 65: 1.6/1.3/1.21L1NB1 NB11L1 /3.1 /4.2
Page 66 and 67: 66 jOHNSON CONTROLS=1-MF1=1-MF2=1-M
Page 68 and 69: NB22L1 2L2 2L32L32L1 2L2 2L1 2L2 2L
Page 70 and 71: =0+PUMP=0+INT-QMMSP11 1-QMMSP2=0+IN
Page 72 and 73: 72 jOHNSON CONTROLSNB6NB6-XTBC2-XTB
Page 74 and 75: Notes - continuedGENERALa. THIS DRA
Page 76 and 77: Guide SpecificationsPART 1 - GENERA
Page 78 and 79: Guide Specifications - continuedlim
Page 80: Guide Specifications - continuedwit

Model YLAA Air-Cooled Scroll Chillers Style A - Johnson Controls

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