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FORM 150.72-EG8 (115) Nomenclature Y L A A 0320 S E 50 X A B DEVELOPMENT LEVEL = B (BPHX) DESIGN SERIES A (MCHX) X = ACROSS THE LINE VOLTAGE CODE: 50 = 380/415-3-50 REFRIGERANT = R-134a S = STANDARD EFFICIENCY H = HIGH EFFICIENCY FOUR DIGIT UNIT NUMBER A = AMERICAS A = AIR COOLED L = SCROLL COMPRESSOR Y = YORK CHILLER Approvals • ASME Boiler and Pressure Vessel Code – Section Vlll Division 1. • AHRI Standard 550/590.
FORM 150.72-EG8 (115) Table Of Contents NOMENCLATURE.................................................................................................................................................... 2 APPROVALS............................................................................................................................................................ 2 TABLE OF CONTENTS...........................................................................................................................
FORM 150.72-EG8 (115) THIS PAGE INTENTIONALLY LEFT BLANK.
FORM 150.72-EG8 (115) Introduction Johnson Controls, the building efficiency leader, is proud to present the YORK Model YLAA Air-Cooled Scroll Chiller. FEATURES AND BENEFITS Installation The YLAA chiller arrives as a factory-assembled package ready to be installed outdoors, either on the roof or at ground level. The air-cooled condensers eliminate the capital, installation and maintenance costs of a cooling-tower circuit. The YLAA weighs less and has s smaller footprint than other chillers in its class.
FORM 150.72-EG8 (115) Introduction (Cont'd) YLAA high-efficiency chillers, with their innovative control algorithms, offer industry-leading energy efficiency. Real-world energy efficiency is measured by IPLV (off-design) performance, and YLAA chillers provide some of the best IPLVs in their class. YLAA also offers an efficiency choice. In addition to the high-efficiency units, YLAA chillers are available in standard efficiency models with smaller footprints and lower capital costs.
FORM 150.72-EG8 (115) Introduction (Cont'd) Serviceability Minimal maintenance is required to keep the unit operating at maximum performance. If service should ever be required, the YLAA chiller has been designed to simplify the work, keeping costs down. The layout of the chiller locates all the major components that can be serviced near the outside edge. The condenser heat exchangers are light enough that no crane is required for replacement.
FORM 150.72-EG8 (115) Equipment Overview The 50 - 150 Ton (180 - 530 kW) YLAA models are shipped complete from the factory ready for installation and use.The unit is pressure-tested, evacuated, and fully charged with a zero Ozone Depletion Potential Refrigerant R-410A and includes an initial oil charge. After assembly, a complete operational test is performed with water flowing through the evaporator to assure that the refrigeration circuit operates correctly.
FORM 150.72-EG8 (115) Equipment Overview (Cont'd) LD18426 The heat exchanger is manufactured in a precisely controlled vacuum-brazing process that allows the filler material to form a brazed joint at every contact point between the plates, creating complex channels. The arrangement is similar to older plate and frame technology, but without gaskets and frame parts. Water inlet and outlet connections are 3” in diameter and are grooved for compatibility with field supplied ANSI/AWWA C-606 couplings.
FORM 150.72-EG8 (115) Equipment Overview (Cont'd) CANADIAN REGISTRATION NUMBER (CRN) APPLICATION & PROOF OF CONFORMANCE Reference Table 1 for YLAA brazed plate evaporator Canadian Registration Numbers (CRN) for all Canadian Provinces. Since all YLAA brazed plate evaporators are categorized as pressure “H” fittings per CSA-B51, a CRN label or marking is not provided on the evaporator.
FORM 150.72-EG8 (115) Equipment Overview (Cont'd) LD18428 Motors – The fans are driven by Totally Enclosed Air-Over, squirrel-cage type, current protected motors. They feature ball bearings that are double-sealed and permanently lubricated. UNIT CONTROL SYSTEM The YLAA chiller is designed with an intelligent control system that operates the chiller automatically with maximum reliability, safety and ease of use.
FORM 150.72-EG8 (115) Equipment Overview (Cont'd) Unit alarm contacts are standard. Contacts for remote chilled liquid temperature reset and two steps of demand load limiting are also standard, for projects without BAS or for redundancy. Maximum reliability is achieved through intelligent control. Run hours and starts are averaged across all compressors automatically, and between both pumps of the optional dual pump hydro-kit.
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FORM 150.72-EG8 (115) Equipment Overview (Cont'd) • Load & unload timer status • Water pump status COMMUNICATIONS • Native communication capability for BACnet (MS/TP), Modbus and N2 • Optional communciation available for LON via eLink option BUILDING AUTOMATION SYSTEM INTERFACE In addition to native BACnet, Modbus and N2, the YLAA chiller accepts a 4-20 milliamp or 0-10VDC input to reset of the leaving chilled liquid temperature.
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FORM 150.72-EG8 (115) Accessories and Options POWER OPTIONS: Unit Power Connections – Single-point terminal block connection(s) are provided as standard. The following power connections are available as options. (See electrical data for specific voltage and options availability.) (Factory installed) Single-Point Supply Terminal Block – Includes enclosure, terminal-block and interconnecting wiring to the compressors.
FORM 150.72-EG8 (115) Accessories and Options (Cont'd) COMPRESSOR, PIPING, EVAPORATOR OPTIONS: Low Temperature Glycol – Replaces standard Thermostatic Expansion Valves with Electronic Expansion Valves to achieve leaving glycol temperatures as low as -12°C (10°F). Required for any leaving liquid temperature below -1°C (30°F). Electronic Expansion Valves permit operation at both low temperatures and comfort cooling applications without a capacity loss or derate at either condition.
FORM 150.72-EG8 (115) Accessories and Options (Cont'd) CONDENSER AND CABINET OPTIONS: Condenser coil protection against corrosive environments is available by choosing any of the following options. For additional application recommendations, contact your local Johnson Controls office. (Factory installed) Post-Coated Condenser Coils – The unit is built with electrostatic post-coated condenser coils.
FORM 150.72-EG8 (115) Accessories and Options (Cont'd) SOUND ATTENUATION: One or both of the following sound attenuation options are recommended for residential or other similar sound sensitive locations. Compressor Acoustic Sound Blanket – Each compressor is individually enclosed by an acoustic sound blanket. The sound blankets are made with one layer of acoustical absorbent textile fiber of 15mm (5/8”) thickness; one layer of heavy duty anti-vibration material thickness of 3mm (1/8”).
FORM 150.72-EG8 (115) Design Parameters NOMINAL EVAPORATOR WATER FLOW UNIT DESIGNATION TEMPERATURE (°C) MIN1 YLAA0180SE YLAA0210SE YLAA0241SE YLAA0286SE YLAA0320SE YLAA0360SE YLAA0400SE YLAA0435SE YLAA0485SE 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 YLAA0195HE YLAA0221HE YLAA0261HE YLAA0300HE YLAA0350HE YLAA0390HE YLAA0441HE YLAA0456HE YLAA0516HE 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 20 WATER FLOW (l/s) MAX2 MIN MAX STANDARD EFFICIENCY 12.8 5 12.6 12.8 5 12.6 12.8 5 12.6 12.8 6.3 22.4 12.8 6.3 24.3 12.8 6.
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FORM 150.72-EG8 (115) Physical Data and Ratings (Cont'd) REFRIGERANT R-410A YLAA HIGH EFFICIENCY UNITS GENERAL UNIT DATA 0195HE 0221HE 0261HE 0300HE 0350HE 0390HE Nominal TONs, R-410A 56.3 60.1 70.5 87.8 98.1 109.5 COP 3.11 3.22 3.11 3.11 3.11 3.02 IPLV 4.92 4.84 4.75 4.57 4.48 4.
FORM 150.72-EG8 (115) Unit Dimensions YLAA0180SE, 0210SE, 0195HE LD18445 NOTE: Placement on a level surface of free of obstructions (including snow, for winter operation) or air circulation ensures rated performance, reliable operation, and ease of maintenance. Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance.
FORM 150.72-EG8 (115) Unit Dimensions (Cont'd) YLAA0240SE, 0285SE, 0320SE LD18446 NOTE: Placement on a level surface of free of obstructions (including snow, for winter operation) or air circulation ensures rated performance, reliable operation, and ease of maintenance. Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance.
FORM 150.72-EG8 (115) Unit Dimensions (Cont'd) YLAA0360SE, 0400SE, 0300HE LD18447 NOTE: Placement on a level surface of free of obstructions (including snow, for winter operation) or air circulation ensures rated performance, reliable operation, and ease of maintenance. Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance.
FORM 150.72-EG8 (115) Unit Dimensions (Cont'd) YLAA0435SE, 0485SE, 0350HE, 0390HE LD18448 NOTE: Placement on a level surface of free of obstructions (including snow, for winter operation) or air circulation ensures rated performance, reliable operation, and ease of maintenance. Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance.
FORM 150.72-EG8 (115) Unit Dimensions (Cont'd) YLAA0441HE LD18449 NOTE: Placement on a level surface of free of obstructions (including snow, for winter operation) or air circulation ensures rated performance, reliable operation, and ease of maintenance. Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance.
FORM 150.72-EG8 (115) Unit Dimensions (Cont'd) YLAA0456HE AND YLAA0516HE LD18450 NOTE: Placement on a level surface of free of obstructions (including snow, for winter operation) or air circulation ensures rated performance, reliable operation, and ease of maintenance. Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance.
FORM 150.72-EG8 (115) Isolator Locations FOUR FAN ISOLATOR LOCATIONS LD18451 FIVE AND SIX FAN ISOLATOR LOCATIONS LD18452 All dimensions are millimeters [inches] unless otherwise specified.
FORM 150.72-EG8 (115) Isolator Locations (Cont'd) SEVEN AND EIGHT FAN ISOLATOR LOCATIONS LD18453 All dimensions are millimeters [inches] unless otherwise specified.
FORM 150.72-EG8 (115) Electrical Notes NOTES: 1. Minimum Circuit Ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of the rated load amps for all other loads included in the circuit, per N.E.C. Article 430‑24. If the optional Factory Mounted Control Transformer is provided, add the following MCA values to the electrical tables for the system providing power to the transformer: -50 = 380/415-3-50, add 1 amps. 2.
FORM 150.72-EG8 (115) Electrical Notes (Cont'd) LEGEND ACR-LINE C.B. D.E. DISC SW FACT MOUNT CB FLA HZ MAX MCA MIN MIN NF RLA S.P.
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FORM 150.72-EG8 (115) Electrical Data w/o Pumps (Cont'd) MODEL VOLT HZ YLAA 0180SE 0195HE 0210SE 0221HE 0241SE 0261HE 0286SE 0300HE 0320SE 0350HE 0360SE 0390HE 0400SE 0435SE 0485SE 0441HE 0456HE 0516HE 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 COMPR 1 COMPR 2 RLA LRA RLA LRA 21.8 21.8 21.8 25.0 25.0 25.0 54.5 54.5 54.5 54.5 25.0 54.5 54.5 41.9 54.5 54.5 41.9 54.
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FORM 150.72-EG8 (115) User Control Wiring USER CONTROL WIRING INPUTS AA+ 14 13 50 13 21 13 20 13 19 13 18 13 51 13 INTERNAL WIRING TO OPTIONAL REMOTE TEMP.
FORM 150.72-EG8 (115) User Control Wiring (Cont'd) USER CONTROL WIRING OUTPUTS Normally jumpered. Can be used as EMERGENCY STOP contacts from an external source.
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FORM 150.72-EG8 (115) Application Data UNIT LOCATION The YLAA chillers are designed for outdoor installation. When selecting a site for installation, be guided by the following conditions: 1. For outdoor locations of the unit, select a place having an adequate supply of fresh air for the condenser. 2. Avoid locations beneath windows or between structures where normal operating sounds may be objectionable. 3. Installation sites may be either on a roof, or at ground level. (See FOUNDATION.) 4.
FORM 150.72-EG8 (115) Application Data (Cont'd) Mounting holes (5/8" diameter) are provided in the steel channel for bolting the unit to its foundation. See DIMENSIONS. For ground level installations, precautions should be taken to protect the unit from tampering by or injury to unauthorized persons. Screws on access panels will prevent casual tampering; however, further safety precautions, such as unit enclosure options, a fencedin enclosure, or locking devices on the panels may be advisable.
FORM 150.72-EG8 (115) Guide Specifications PART 1 – GENERAL 1.01 SCOPE A. The requirements of this Section shall conform to the general provisions of the Contract, including General and Supplementary Conditions, Conditions of the Contract, and Contract Drawings. B. Provide Microprocessor controlled, multiple-scroll compressor, air-cooled, liquid chillers of the scheduled capacities as shown and indicated on the Drawings, including but not limited to: 1.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) C. Chiller manufacturer shall have a factory trained and supported service organization. D. Warranty: Manufacturer shall Warrant all equipment and material of its manufacture against defects in workmanship and material for a period of eighteen (18) months from date of shipment or twelve (12) months from date of start-up, whichever occurs first. 1.03 DELIVERY AND HANDLING A.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) 2.02 COMPRESSORS A. Compressors: Shall be hermetic, scroll-type, including: 1. Compliant design for axial and radial sealing 2. Refrigerant flow through the compressor with 100% suction cooled motor. 3. Large suction side free volume and oil sump to provide liquid handling capability. 4. Compressor crankcase heaters to provide extra liquid migration protection. 5.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) [Option] Evaporator shall be provided with piping extension kit and mechanical couplings to extend liquid connection from evaporator to edge of unit. Thermal dispersion type flow switch shall be factory installed in the evaporator outlet pipe extension and wired to the unit control panel. Extension kit nozzle connections shall be ANSI/AWWA C-606 (grooved) . B. Air Cooled Condenser: 1.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) low liquid temperature cutout, low suction pressure cutout, high discharge pressure cutout, anti-recycle timer (compressor start cycle time), and anti-coincident timer (delay compressor starts). 6.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) 2.07 ACCESSORIES AND OPTIONS Some accessories and options supercede standard product features. Your Johnson Controls representative will be pleased to provide assistance. A. Microprocessor controlled, Factory installed Across-the-Line type compressor motor starters as standard. B. Outdoor Ambient Temperature Control 1. Low Ambient Control: Permits unit operation to -17.8°C (0°F) ambient. Standard unit controls to -1.1°C (30°F) ambient. 2.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) 4. Louvered/Wire Panels: Louvered steel panels on external condenser coils painted as per remainder of unit cabinet. Heavy gauge, welded wire-mesh, coated to resist corrosion, around base of machine to restrict unauthorized access. 5. End Louver (hail guard): Louvered steel panels on external condenser coil faces located at the ends of the chiller. H.
FORM 150.72-EG8 (115) Guide Specifications (Cont'd) PART 3 – EXECUTION 3.01 INSTALLATION A. General: Rig and Install in full accordance with Manufacturers requirements, Project drawings, and Contract documents. B. Location: Locate chiller as indicated on drawings, including cleaning and service maintenance clearance per Manufacturer instructions. Adjust and level chiller on support structure. C.
Printed on recycled paper Form 150.72-EG8 (115) Supersedes: 150.72-EG8 (914) © 2015 Johnson Controls, Inc. P.O. Box 423, Milwaukee, WI 53201 Printed in USA www.johnsoncontrols.
