York YVAA Installation Operation & Maintenance

Air-cooled screw liquid chillers, air-cooled screw liquid chillers with variable speed drive

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Installation, operation & maintenance instructions manual (178 pages)

Service information (3 pages)

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Air-Cooled Screw Liquid Chillers

Supersedes 201.47-ICOM1 (622)

Form 201.47-ICOM1 (1122)

Installation, Operation, Maintenance

035-28772-100

Model YVAA Style B

Air-Cooled Screw Liquid Chillers with Variable Speed Drive

Frame Sizes 016 to 026

150 ton to 550 ton

525 kW to 1934 kW

2 Compressor

50 Hz and 60 Hz

R-134a or R-513A

Issue Date:

November 17, 2022

Table of Contents

Summary of Contents for York YVAA

Page 1 Air-Cooled Screw Liquid Chillers Supersedes 201.47-ICOM1 (622) Form 201.47-ICOM1 (1122) Installation, Operation, Maintenance 035-28772-100 Model YVAA Style B Air-Cooled Screw Liquid Chillers with Variable Speed Drive Frame Sizes 016 to 026 150 ton to 550 ton 525 kW to 1934 kW...
Page 2 Form 201.47-ICOM1 Issue date: 17/11/2022 Important Read before proceeding General safety guidelines This equipment is a relatively complicated apparatus. which it is situated, as well as severe personal injury or During rigging, installation, operation, maintenance, death to themselves and people at the site. or service, individuals may be exposed to certain com- This document is intended for use by owner-authorized ponents or conditions including, but not limited to:...
Page 3 Form 201.47-ICOM1 Issue date: 17/11/2022 Changeability of this document In complying with Johnson Controls’ policy for con- It is the responsibility of rigging, lifting, and operat- ing or service personnel to verify the applicability of tinuous product improvement, the information con- these documents to the equipment.
Page 4 Planned Service Agreement that leverages real time and generalized conditions. In lieu of the traditional and historical data, delivering performance reporting, maintenance program, a Johnson Controls YORK corrective actions required and data enabled guidance Conditioned Based Maintenance (CBM) program can for optimal operation and lifecycle assurance.
Page 5 Form 201.47-ICOM1 Issue date: 17/11/2022 Unit Nomenclature YVAA 0161 Base Product Type Y = YORK V= Variable Speed Screw Refrigerant A = Air Cooled Chiller A = Refrigerant R-134a A = Design Series B = Refrigerant R-513A Unit Designator Modification Level...
Page 6: Table Of Contents
Responsibility for safety ..........................12 About this manual ............................12 Misuse of equipment ............................12 Section 2 - Product description ...........................15 General system description ..........................15 Semi-hermetic YORK twin-screw compressors....................17 Evaporator ..............................17 Condenser ..............................17 Refrigerant circuit ............................17 Electrical ................................. 17 Building automation system capabilities ......................
Page 7 Form 201.47-ICOM1 Issue date: 17/11/2022 Table of Contents (cont'd) Electrical connection ............................36 Power wiring ..............................37 Power supply wiring ............................37 115 VAC control supply transformer ....................... 37 Control wiring ..............................37 Volts free contacts ............................38 System inputs ..............................38 Power supply wiring ............................
Page 8 Steps to touch-up end (dead) tubes and/or condenser coil headers: ............174 Materials required: ............................174 Chilled liquid system maintenance ....................... 175 Maintenance requirements for YVAA chillers ....................177 R-134a conversion table ..........................181 R-513A conversion table ..........................182 R-513A conversion table ..........................183 Section 10 - Decommissioning, dismantling, and disposal ................189...
Page 9 Form 201.47-ICOM1 Issue date: 17/11/2022 List of figures Figure 1 - YVAA air-cooled screw liquid chiller with variable speed drive ............... 15 Figure 2 - Chiller control system ..........................16 Figure 3 - View of YORK control center user interface ...................18 Figure 4 - Lifting lug ..............................24...
Page 10 Table 14 - One inch deflection isolator weights .......................91 Table 15 - Two inch deflection isolator weights .......................93 Table 16 - YVAA freeze damage protection requirements ..................98 Table 17 - YVAA SC-EQ BAS Points List ......................106 Table 18 - Low differential oil pressure cutout ....................... 116 Table 19 - Discharge pressure load limiting/unloading ..................
Page 11: Section 1 - General Chiller Information And Safety
Section 1 - General chiller information and safety Introduction Warranty YORK YVAA chillers are manufactured to the high- Johnson Controls warrants YVAA chillers in accor- est design and construction standards to ensure high dance with the Limited Warranty Engineered Systems performance, reliability and adaptability to all types of Equipment procedure.
Page 12: Quality Assurance And Safety
Issue date: 17/11/2022 Quality assurance and safety Fluorinated greenhouse gases • This equipment contains fluorinated greenhouse YVAA chillers are designed within EN ISO 9001 and gases covered by the Kyoto Protocol. built within an EN ISO 9002 accredited manufacturing organization.
Page 13 Form 201.47-ICOM1 SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY Issue date: 17/11/2022 Structural support Structural support of the unit must be provided as in- This equipment equipped with VSD, may generate dicated in these instructions. Failure to provide correct conducted and radiated disturbances, which may inter- support may result in injury to the operator, or damage fere with or damage susceptible connected apparatus.
Page 14 Form 201.47-ICOM1 SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY Issue date: 17/11/2022 Refrigerants and oils Safety labels Refrigerants and oils used in the unit are generally non- White symbol on blue background. toxic, non-flammable and non-corrosive, and pose no For safe operation, read the Instructions special safety hazards.
Page 15: Section 2 - Product Description
LD15045 Figure 1 - YVAA air-cooled screw liquid chiller with variable speed drive JOHNSON CONTROLS...
Page 16: Figure 2 - Chiller Control System
Form 201.47-ICOM1 SECTION 2 - PRODUCT DESCRIPTION Issue date: 17/11/2022 Inputs Outputs Pressure transducers Relay output board Temperature sensors Switches Solenoids Liquid flow Contactors Control panel High pressure Alarm Chiller control Start / stop Pump board Level Compressor heater Run status Customer supplied Evaporator heater Microprocessor...
Page 17: Semi-Hermetic York Twin-Screw Compressors
• A brazed plate heat exchanger is located in each Condenser refrigerant circuit to increase the system efficien- The YVAA Style B introduces next-gen 4G microchan- nel coils to the YORK screw compressor chiller line. Electrical This design allows for bigger flow channels, reducing...
Page 18: Building Automation System Capabilities
Display data • Leaving Chilled Liquid Temperature • Returning Liquid Temperature • Ambient Temperature • Lead System Figure 3 - View of YORK control center user interface • Compressor Capacity (% of Full Load Amps) JOHNSON CONTROLS...
Page 19: Accessories And Options
• Ambient temperature above or below allowable range Condenser coil protection • Out of range leaving chilled liquid temperature The aluminum alloys used in the YVAA micro-chan- nel condenser have been carefully selected and tested • Under voltage for high corrosion resistance. However, all metals can •...
Page 20 Form 201.47-ICOM1 SECTION 2 - PRODUCT DESCRIPTION Issue date: 17/11/2022 End Hail Guard – Louvered panels, painted with the Building Automation System Interface (Tempera- ture) – Factory installed option to accept a 4 mA to 20 same color as the unit, are installed on the rear of the unit (opposite end of the control panel) to protect the mA or a 0 VDC to 10 VDC input to allow remote reset of the Leaving Chilled Liquid Temperature Setpoint.
Page 21 Form 201.47-ICOM1 SECTION 2 - PRODUCT DESCRIPTION Issue date: 17/11/2022 Dual Pressure Relief Valve – Two safety relief valves Vibration isolation are mounted in parallel; one is always operational to Elastomeric Isolation – This option is recommended assist in valve replacement during maintenance. for normal installations.
Page 22 Form 201.47-ICOM1 Issue date: 17/11/2022 THIS PAGE IS INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
Page 23: Section 3 - Rigging, Handling, And Storage
Form 201.47-ICOM1 Issue date: 17/11/2022 Section 3 - Rigging, handling, and storage LD19197 Rigging and lifting must only be done by a professional rigger in accordance with a written rigging and lifting plan. The most appropriate rigging and lifting method will depend on job specific factors, such as the rigging equipment available and site needs.
Page 24: Inspection
Form 201.47-ICOM1 SECTION 3 - RIGGING, HANDLING, AND STORAGE Issue date: 17/11/2022 Inspection Remove any transit packing and inspect the unit to ensure that all components have been delivered and that no damage has occurred during transit. If any damage is evident, it should be noted on the carrier’s freight bill and a claim entered in accordance with the instructions given on the advice note.
Page 25: Figure 5 - Power Panel, 1 To 4
Form 201.47-ICOM1 SECTION 3 - RIGGING, HANDLING, AND STORAGE Issue date: 17/11/2022 Figure 5 - Power panel, 1 to 4 Table 1 - Unit lifting point locations YVAA-B YVAA-B Model Model English Metric YVAA0161 YVAA0571 13.67 347.3 59.7 1516.5 133.42 3389 188.00...
Page 26: Figure 6 - Power Panel, 1 To 5
Form 201.47-ICOM1 SECTION 3 - RIGGING, HANDLING, AND STORAGE Issue date: 17/11/2022 Figure 6 - Power panel, 1 to 5 Table 1 - Unit lifting point locations (cont'd) YVAA-B YVAA-B Model Model English Metric YVAA0169 YVAA0599 13.67 347.3 59.7 1516.5 133.42...
Page 27: Figure 7 - Power Panel, 1 To 6
Form 201.47-ICOM1 SECTION 3 - RIGGING, HANDLING, AND STORAGE Issue date: 17/11/2022 Figure 7 - Power panel, 1 to 6 Table 1 - Unit lifting point locations (cont'd) YVAA-B YVAA-B Model Model English Metric YVAA0331 YVAA1161 13.67 347.3 101.5 2578.1 159.55 4052.5 253.22 6431.9 349.41 8874.9 415.3 10551.9 YVAA0306 YVAA1076 13.67 347.3 101.5 2578.1 159.55 4052.5 253.22 6431.9 349.41 8874.9 415.3 10551.9...
Page 28: Figure 8 - Power Panel, 1 To 8
Form 201.47-ICOM1 SECTION 3 - RIGGING, HANDLING, AND STORAGE Issue date: 17/11/2022 Figure 8 - Power panel, 1 to 8 Table 1 - Unit lifting point locations (cont'd) YVAA- YVAA- Model Model Eng- Metric lish YVAA YVAA 13.67 347.3 101.5 2578.1 159.55 4052.5 253.22 6431.9 305.6 7762.3 413.48 10502.3 443.08 11254.2 529.69 13454.2...
Page 29: Section 4 - Installation
Form 201.47-ICOM1 Issue date: 17/11/2022 Section 4 - Installation Location requirements Any ductwork or attenuators fitted to the unit must not For optimum performance and trouble-free service, it have a total static pressure resistance, at full unit air- is essential that the installation site meet the location flow, exceeding the capability of the fans installed in and space requirements for the model being installed.
Page 30: Figure 9 - Acceptable Minimum Clearances Around And Between Units
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Recommended minimum clearances Table 2 - Minimum evaporator tube removal clearance The recommended clearances for the YVAA units are Tube removal as follows: Model YVAA clearance dimensions • Side to wall: 6 ft (1.8 m)
Page 31: Vibration Isolators
It is recommend- Pressure of Pressure Vessel Name Plate ed that a suitably sized bypass and valve arrangement for YVAA and YVFA with Falling Film is installed to allow flushing of the piping system. The Evaporator.
Page 32: Evaporator Pressure Drop
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Drain and air vent connections should be provided at The installer or user must also ensure that all low and high points in the piping to permit drainage the quality of the water in circulation is of the system and to vent any air in the pipes.
Page 33: Water Treatment
Leaving water temperature out of range causing potential damage to the heat exchanger tubes. The YVAA chiller line has a maximum leaving water Aerated, brackish or salt water is not recommended temperature of 21.1°C (70°F). Where process applica- for use in the water systems.
Page 34: Thermal Storage
The YVAA has special control logic to be able to pro- duce chilled leaving brine temperatures below 4.4°C (40°F) so as to supply a storage tank with chilled liquid during times of low demand.
Page 35: Table 3 - Evaporator Connections Dimensions
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 3 - Evaporator connections dimensions Flange dimensions (GB only) mm Nominal Model Grooved size, in. diameter 0161/0571 DIN125 139.7 0166/0586 DIN125 139.7 0169/0599 DIN125 139.7 0176/0616 DIN150 170.5 241.5 0191/0671 DIN125 139.7 0196/0686...
Page 36: Refrigerant Relief Valve Piping
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 4 in. / 6 in. / 8 in. flange 10 in. flange LD16185a Figure 15 - Flange for GB vessels Option flanges One of two types of flanges may be fitted depending The size of any piping attached to a relief valve must on the customer or local pressure vessel code require- be of sufficient diameter so as not to cause resistance to...
Page 37: Power Wiring
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 After power wiring connection, do not Power supply wiring switch on mains power to the unit. Some • Units require only one 3-phase supply, plus earth. internal components are live when the mains are switched on and this must only •...
Page 38: Volts Free Contacts
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Volts free contacts • Ensure that the sensor tip does not contact the pipe wall. Do not mount it in a downpipe, in which the Chilled liquid pump starter liquid flows downwards. Terminals 23 and 24 on 1TB close to start the chilled •...
Page 39: Power Supply Wiring
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Power supply wiring Single point wiring UNIT MOUNTED ELECTRONICS STANDARD UNIT CONTROLS CONTROL INVERTER INVERTER TRANSFORMER EVAPORATOR HEATER LINE CONTACTORS REACTOR TERMINAL BLOCK (CIRCUIT BREAKER - OPT) WATER BOX (NON-FUSED DISCONNECT HEATER SWITCH - OPT) SEE NOTE 1...
Page 40: Figure 18 - Dual Point Power Wiring
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Dual point wiring UNIT MOUNTED ELECTRONICS STANDARD UNIT CONTROLS CONTROL EVAPORATOR AND COMPRESSOR TRANSFORMER HEATERS POWER POWER ASSEMBLY ASSEMBLY VSD COOLING PUMP SYSTEM 2 AND FAN SYSTEM 1 LINE LINE CONTACTORS CONTACTORS REACTOR REACTOR...
Page 41: Customer Control Wiring
CONTACTS CHILLER LEGEND TERMINAL BLOCK FOR CUSTOMER CONNECTIONS TERMINAL BLOCK FOR YORK CONNECTIONS WIRING AND COMPONENTS BY YORK OPTIONAL EQUIPMENT WIRING AND/OR COMPONENTS BY OTHERS In subfreezing regions, failure to connect EVAP. PUMP START SIGNAL from terminal 23 and ter- minal 24 to chilled water pump starter will void warranty, except when the water in the evaporator is fully dried or appropriate concentration of glycol is reached in the water system.
Page 42: Thermal Dispersion Flow Switch Connections
Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Thermal dispersion flow switch connections TO FLOW SWITCH INPUT TERMINALS 2 AND 13 RED/YEL NOT USED TO 115 V AC 1.88 RED/BLK SUPPLY RED/WHT 1.13 PIPE COUPLING NB: INSERT PROBE INTO COMPRESSION CLAMP SO THE PROBE TIP EXTENDS WATER PIPE WORK INTO THE PIPE ID BETWEEN 1 IN.
Page 43: Figure 21 - Reserved Customer Wiring Entry
Figure 21 - Reserved customer wiring entry Failure to connect the power connection For YVAA chillers, if the water box heater option is to the water box heater wiring box, or to available, the customer has to connect a 115 V/60 Hz or meet IP65, voids warranty.
Page 44 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Connect the 115 V/60 Hz or 220 V/50 Hz power sup- Evaporator heaters used in the unit may ply to the top terminals of the 2-pole-breaker, as shown malfunction without alarm. Once the in Figure 22 on page 43.
Page 45: Table 4 - Electrical Lug Data
SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 46 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 47 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 48 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 49 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 50 Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES LUG WIRE WIRES VOLTS...
Page 51 Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES LUG WIRE WIRES VOLTS...
Page 52 Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES LUG WIRE WIRES VOLTS...
Page 53 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 54 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) STANDARD 2HP (with & Without VSD) CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ...
Page 55 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 56 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 57 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 58 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 59 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 60 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 61 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 62 Form 201.47-ICOM1 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES VOLTS FREQ WIRE...
Page 63 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES LUG WIRE VOLTS FREQ...
Page 64 SECTION 4 - INSTALLATION Issue date: 17/11/2022 Table 4 - Electrical lug data (cont'd) EBM CONDENSER FANS FIELD WIRING LUGS TERMINAL BLOCK CIRCUIT BREAKER NON-FUSED DIS- CONNECT SWITCH YVAA-B MODEL EVAP INPUT INPUT WIRES WIRES WIRES LUG WIRE VOLTS FREQ...
Page 65: Section 5 - Technical Data
Form 201.47-ICOM1 Issue date: 17/11/2022 Section 5 - Technical data The data shown within the tables of this chapter, are Contact your nearest Johnson Controls Sales applicable to selected typical configurations. Other Office for the chiller configuration that best matches configurations are available through our configuration your specific needs.
Page 66: Table 5 - Physical Data - Microchannel Coil
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 5 - Physical data - Microchannel coil Unit designator 0161 0201 0166 0211 0191 0169 0176 0214 0224 0254 Unit frame Condenser code 24/24 36/36 24/24 36/36 24/36 24/24 24/24 36/36 36/36...
Page 67 Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 5 - Physical data - Microchannel coil (cont'd) Unit designator 0261 0196 0199 0234 0216 0226 0259 0266 0219 0229 Unit frame Condenser code 45/45 24/36 24/36 36/45 36/36 36/36 45/45 45/45...
Page 68 Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 5 - Physical data - Microchannel coil (cont'd) Unit designator 0264 0269 0246 0324 0294 0331 0306 0309 0334 0491 Unit frame Compressor code 45/45 45/45 36/45 51/51 45/51 51/51 45/51 45/51...
Page 69 Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 5 - Physical data - Microchannel coil (cont'd) Unit designator Unit frame Compressor code 45/70 51/70 70/70 70/70 51/70 70/70 Circuit-1/Circuit-2 Evaporator code Circuit-1/Circuit-2 General unit data Number of Independent Refrigerant Circuits Refrigerant Charge, R-134a, 240/366...
Page 70: Figure 23 - Standard Two-Pass, Right Side Inlet/Outlet Evaporator Connections
Figure 23 - Standard two-pass, right side inlet/outlet evaporator connections Table 6 - Standard two-pass, right side inlet/outlet evaporator connections All dimensions - in. (mm) Maximum Minimum Water chilled YVAA E-nozzle chilled water volume gal water flow size flow rate...
Page 71 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 6 - Standard two-pass, right side inlet/outlet evaporator connections (cont'd) All dimensions - in. (mm) Maximum Minimum Water chilled YVAA E-nozzle chilled water volume gal water flow size flow rate Model...
Page 72: Figure 24 - Optional Two-Pass Left Side Inlet/Outlet Connections
Issue date: 17/11/2022 Figure 24 - Optional two-pass left side inlet/outlet connections Table 7 - Optional two-pass left side inlet/outlet connections All dimensions - in. (mm) Minimum Maximum Water YVAA E-nozzle chilled water chilled wa- volume gal size flow rate...
Page 73 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 7 - Optional two-pass left side inlet/outlet connections (cont'd) All dimensions - in. (mm) Minimum Maximum Water YVAA E-nozzle chilled water chilled wa- volume gal size flow rate ter flow rate...
Page 74: Figure 25 - Standard Two-Pass Left Side Inlet/Outlet Connections
Issue date: 17/11/2022 Figure 25 - Standard two-pass left side inlet/outlet connections Table 8 - Standard two-pass left side inlet/outlet connections All dimensions - in. (mm) Minimum Maximum Water YVAA E-nozzle chilled water chilled water volume gal size flow rate...
Page 75: Figure 26 - Optional Three-Pass Inlet/Outlet Connections
SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Figure 26 - Optional three-pass inlet/outlet connections Table 9 - Optional three-pass inlet/outlet connections All dimensions - in. (mm) Minimum Maximum Water YVAA E-nozzle chilled water chilled water Figure volume gal size flow rate...
Page 76 Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Table 9 - Optional three-pass inlet/outlet connections (cont'd) All dimensions - in. (mm) Minimum Maximum Water YVAA E-nozzle chilled water chilled water Figure volume gal size flow rate flow rate...
Page 77: Figure 27 - Yvaa Dimensions
The following data is applicable to select configura- Contact your nearest Johnson Controls Sales tions. Other configurations are available through our Office for the chiller configuration that best matches configuration/selection software. your specific needs. Figure 27 - YVAA dimensions JOHNSON CONTROLS...
Page 78: Figure 28 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 28 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0161/0571 0201/0701 0166/0586 0211/0741 0191/0671 0169/0599 0176/0616 0214/0754 Models), in.
Page 79: Figure 29 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 29 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0224/0782 0254/0894 0261/0921 0196/0686 0199/0699 0234/0824 0216/0756 0226/0796 Models), in.
Page 80: Figure 30 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 30 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0161/0571 0201/0701 0166/0586 0211/0741 0191/0671 0169/0599 0176/0616 0214/0754 Models), in.
Page 81: Figure 31 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 31 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0224/0782 0254/0894 0261/0921 0196/0686 0199/0699 0234/0824 0216/0756 0226/0796 Models), in.
Page 82: Figure 32 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 32 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0259/0919 0266/0936 0219/0769 0229/0809 0264/0924 0269/0949 0246/0866 Models), in.
Page 83: Figure 33 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 33 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0259/0919 0266/0936 0219/0769 0229/0809 0264/0924 0269/0949 0246/0866 Models), in.
Page 84: Figure 34 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 34 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0294/1034 0324/1134 0331/1161 0306/1076 0309/1089 0334/1174 0491/1731 Models), in.
Page 85: Figure 35 - Isolator Selection And Mounting Locations
Issue date: 17/11/2022 LD18587 Figure 35 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, in. (mm) Y-Dimen- sion (All Location YVAA 0294/1034 0324/1134 0331/1161 0306/1076 0309/1089 0334/1174 0491/1731 Models), in.
Page 86: Figure 36 - Isolator Selection And Mounting Locations
SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 LD18587 Figure 36 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, Y-Dimen- in. (mm) sion (All Location YVAA...
Page 87: Figure 37 - Isolator Selection And Mounting Locations
SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 LD18587 Figure 37 - Isolator selection and mounting locations Table 10 - Isolator selection and mounting locations (cont'd) Isolator Isolator X-Dimension listed by YVAA Model Designation, Y-Dimen- in. (mm) sion (All Location YVAA...
Page 88: Elastomeric Isolator Installation
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Elastomeric isolator installation Top bolt Top washer SECTION D-D Section D-D LD13762C Figure 38 - Elastomeric isolator Read the following instructions before beginning installation. 3. Bolt or anchor all isolators to supporting structure 1.
Page 89: Elastomeric Isolator Specifications
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Elastomeric isolator specifications MOLDED DURULENE MOLDED DURULENE Ø = AD Thru Typ 2 Places R = 0.280 Slot Typ 2 Places Figure 39 - Elastomeric isolator specifications LD17304 Table 11 - Elastomeric dimensions Dimension data (in.) Model P/N Type A 029-25335-001...
Page 90: One Inch Deflection Isolator Installation
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 One inch deflection isolator installation EQUIPMENT POSITIONING BASE UPPER PIN (H) HOUSING 0.25” min - 0.5” max LOWER HOUSING NON-SKID ELASTOMERIC Figure 40 - One inch deflection isolator 4. Place equipment on top of isolators making sure Read the following instructions before beginning that mounting holes of the equipment line up with installation.
Page 91: One Inch Deflection Spring Isolator Specifications
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 One inch deflection spring isolator specifications 5/8" H" C" T" B" L" D" W" Figure 41 - One inch deflection isolator specifications Table 13 - One inch deflection isolator dimensions Dimension data (in.) Mount type...
Page 92: Two Inch Deflection, Isolator Installation And Adjustment
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Two inch deflection, isolator installation and adjustment ("G") ("E") ("A") ("A") ("E") GROMMET 1/4 - 3/8 GAP EQUIPMENT ("F") WASHER ("E") ("F") ("C") ("C") ("B") Figure 42 - Two inch deflection isolator Read the following instructions before beginning 6.
Page 93: Two Inch Deflection, Restrained Spring Isolator Specifications
Form 201.47-ICOM1 SECTION 5 - TECHNICAL DATA Issue date: 17/11/2022 Two inch deflection, restrained spring isolator specifications 1-1/8" 5" 5/8" 2-3/4" 2-3/4" 12" 3/8" GAP 5/8-11UNC Ø3/4" TYP. (4) TYP.(4) 3/4" 7/8" 1/2" LIMIT STOP & 8-3/8" OPER. HEIGHT 12-1/4" 14"...
Page 94: Section 6 - Commissioning
If no pressure is present, Compressor oil a leak test must be undertaken, the leaks located and To add oil to a circuit - connect a YORK hand oil pump repaired. (Part No. 470-10654-000) to the 1/4 in. (6.35 mm) oil...
Page 95: Figure 44 - Led Indicator Buttons
Form 201.47-ICOM1 SECTION 6 - COMMISSIONING Issue date: 17/11/2022 High oil concentration in the system may cause Flow rates and pressure drops must be within the limits nuisance trips resulting from incorrect readings on the given in Section 5 - Technical data. Operation outside level sensor and temperature sensors.
Page 96: Figure 45 - Flow Switch Set
Form 201.47-ICOM1 SECTION 6 - COMMISSIONING Issue date: 17/11/2022 Setting the thermal dispersion flow switch Temperature sensors To set up the flow switch, perform a high-flow adjust- Ensure that leaving liquid temperature ment, which is a quick reaction with falling low. sensor is coated with heat conductive compound (Part No.
Page 97: First Time Startup
If oil pressure does not develop, the automatic con- trols will shut down the compressor. Under no circum- If the YVAA is exposed to subfreezing ambient tem- stances should a restart attempt be made on a compres- peratures at any time during its life, it is critical to sor, which does not develop oil pressure immediately.
Page 98: Table 16 - Yvaa Freeze Damage Protection Requirements
Table 16 - YVAA freeze damage protection requirements Chiller control of chilled fluid Actuated suction service...
Page 99: Section 7 - Operation
Form 201.47-ICOM1 Issue date: 17/11/2022 Section 7 - Operation Operating controls The keypad also contains keys in the center section for data entry in the various program modes. These keys Display are as follows: • 0-9 Keys NUMERIC KEYPAD • PERIOD/DECIMAL •...
Page 100 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 The ◄ (LEFT ARROW) key allows programming the XXXXXXXXXXX OUT OF RANGE TRY AGAIN! default value when programming numeric values. For XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX changing numeric values, the ► (RIGHT ARROW) Display key has no function. The 80 character (2 lines of 40 characters per line) The ◄...
Page 101: Basic Operating Sequence
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Both evaporator heater outputs are always turned ON Flow switch control and OFF together. An under voltage condition keeps A chilled liquid flow switch of suitable type MUST the heater OFF until full voltage is restored to the sys- be connected between Terminals 2 and 13 of 1TB to tem.
Page 102: Unit Warning
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 • The Flow Switch is closed. Microboard (331-03478-XXX) • Leaving Chilled Liquid Setpoint is above the The 331-03478-xxx microboard utilizes the IPU3 pro- Setpoint plus CR (Setpoint High Limit). cessor. The IPU3 processor supports BAS Communi- cation through the use of the SC-EQ Communications Once the precharge takes place, if the anti-recycle tim- Card.
Page 103 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 24 VAC power is applied to the 331-03478-xxx microboard connector J12 and is then used to create the various DC power sources required by the microboard circuitry. If the chiller control is malfunctioning, the power supply test points should be measured to deter- mine the status of the microboard.
Page 104: Figure 49 - New 331-03478-Xxx Microboard
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 YorkTalk2 is connected at TB3 for IPU3 SC-EQ Number Description Number Description Number Description Number Description Port 2 TP3 +5 V Power LED Port 1 SC-EQ RX2, TX2 PORT 2 RS-232 TP2 +3.3 V Status LED TP1 GND...
Page 105: Sc-Eq Communications Card
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 SC-EQ communications card Received data (Control data) The chiller receives eight data values from the SC-EQ. For communication to BACnet MS/TP MODBUS The first four are analog values and the last four are digi- RTU N2 or LON the SC-EQ Communication Card tal values.
Page 106: Table 17 - Yvaa Sc-Eq Bas Points List
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Table 17 - YVAA SC-EQ BAS Points List JOHNSON CONTROLS...
Page 107 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Table 17 - YVAA SC-EQ BAS Points List (cont'd) JOHNSON CONTROLS...
Page 108 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Table 17 - YVAA SC-EQ BAS Points List (cont'd) JOHNSON CONTROLS...
Page 109 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Table 17 - YVAA SC-EQ BAS Points List (cont'd) YVAA / YVFA / YAGK SC-EQ BAS Points List Rev 2.14 May 10, 2022 SC-EQ Software Version 4.5.0.18 YVAA / YVFA / YAGK Operational Code...
Page 110 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 THIS PAGE IS INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
Page 111: Program Update
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 13. Press the ENTER key to start the update. Once J2 VSD#1 and J1 VSD#2 connections headers for pressed the message appears on the display: RS-485 communications to the Variable Speed Drives. SOFTWARE UPDATE IN PROGRESS PLEASE WAIT VSD RX and VSD TX LEDs illuminate to indicate until the update has been completed.
Page 112: Data Logging
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 If there are other internal errors that occur the follow- Follow all JCI Safety Directives when ing message is displayed until the user presses the En- inserting or removing the SD card or USB ter key.
Page 113: Unit Safeties
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 To clear this warning, both the control panel and VSD tered as such in the History because it occurred while control voltage must be turned OFF and the jumpers the VSD was shutting down or while the systems were properly installed in the VSD wiring harness.
Page 114: System Safeties, Faults
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 programmed. Any time the leaving chilled liquid tem- System safeties, faults perature (water or brine) drops below the program- System safety (fault) operation mable cutout point, the chiller will fault and shutdown with a controlled ramped shutdown.
Page 115 Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Immediately after the Suction Pressure Startup By- High discharge pressure cutout (software) fault pass Time has expired, the Suction Pressure Cutout is linearly ramped to allow the programmed Suction The High Discharge Pressure Cutout is a software fault. Pressure Startup ramp the Bypass Time, from 10% to A system will fault and shut down with a controlled 100% of the programmed Suction Pressure Cutout, as...
Page 116: Table 18 - Low Differential Oil Pressure Cutout
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 The X indicates the system and YYYYYYY indicates Table 18 - Low differential oil pressure cutout the system is in a FAULT condition and will restart Ambient temperature Ramp time when the 120 second anti-recycle timer times out or LOCKOUT and will not restart until the operator clears more than 10°C (50ºF) 5 min...
Page 117: Table 19 - Discharge Pressure Load Limiting/Unloading
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 The safety is ignored for the first 10 minutes of op- Cutout + 1.7 psig, loading is inhibited, even though in- eration if the system economizer feed valve is closed creased loading is required. (0%) and for 5 minutes of operation if the economizer Between the Suction Pressure Cutout + 1.7 psig and feed valve is open greater than 0%.
Page 118: Table 21 - Start Inhibit Sensor Thresholds
Form 201.47-ICOM1 SECTION 7 - OPERATION Issue date: 17/11/2022 Sensor failure cutout fault 121°C (250°F). The system will be inhibited from start- ing if its motor temperatures sensors indicate tempera- The Sensor Failure Cutout prevents the system from tures above 116°C (240°F). If any single temperature running when a critical sensor (transducer, level sen- sensor is being ignored under the Unit Set-up Mode, sor, or motor winding temp sensor) is not function-...
Page 119: Section 8 - Micropanel
UNIT STATUS When power is first applied to the control panel, the MANUAL OVERRIDE following message displaying YORK International Corporation, the EPROM version, date, and time will This message indicates the chiller is operating in be displayed for 2 seconds, followed by the appropriate MANUAL OVERRIDE mode.
Page 120 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 message will be displayed on the lag system until the UNIT STATUS loading sequence is ready for the lag system to start. UNIT SWITCH OFF SHUTDOWN This message indicates the UNIT SWITCH is in the SYS X COOLING DEMAND SHUTDOWN OFF position and not allowing the unit to run.
Page 121 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 SYS X PULLDOWN MOTOR CURRENT LIMITING SYS X VSD INTERNAL AMBIENT TEMP LIMITING The pulldown motor current limiting message indicates The VSD Internal Ambient Temp Limiting message the pulldown motor current load limit or pulldown indicates the VSD internal ambient temp is high and motor current unloading is in effect based on the load limit or unloading is in effect.
Page 122: Unit Data Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Unit data key Unit data LD10605 Figure 51 - Unit data key General The UNIT DATA key provides the user with displays UNIT TEMP ERROR = XXX.X °F of unit temperatures, and unit related data. Displays RATE = XXX.X °F/M can be selected by repeatedly pressing the UNIT DATA key or the▲...
Page 123 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 The types of remote control are listed as follows: The next key press displays the sound limit values as set under the PROGRAM key by the Local, BAS, and the • NONE - No remote control is actively controlling Remote Sound Limit Inputs.
Page 124: System Data Keys 1 Through 4
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 System data keys 1 through 4 System 1 data key System 2 data key System 3 data key System 4 data key LD10605 Figure 52 - System data keys 1 through 4 General The data keys provide the user with many displays of The next key press displays system oil and eductor...
Page 125 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 If any motor temp sensor is being ignored, The next key press indicates the state of the (selectable under Unit Set-up Mode), optional VI solenoids where XXX indicates ON or that sensor’s value will be displayed as OFF.
Page 126: Table 22 - Sensor Minimum And Maximum Outputs
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Sensor displays If values exceed the limits in the table, a < (less than) Table 15 on page 126 lists all the sensors attached to the control board associated with system data keys. or >...
Page 127: Vsd Data Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 VSD data key data key LD10605 Figure 53 - VSD data key General The next key press displays DC Bus voltage. The VSD DATA key provides the user with displays of VSD temperatures, voltages, currents, and other oper- DC BUS VOLTAGE = XXX VDC ating data.
Page 128: Table 23 - Compressor Overload Settings
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Table 23 - Compressor overload settings Model 380 V - 60 Hz 400 V - 50 Hz 460 V - 60 Hz (see note 1) Sys # 1 Sys # 2 Sys # 1 Sys # 2 Sys # 1...
Page 129: Operating Hours/Start Counter Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Operating hours/Start counter key Operating hours/ Start counter key LD10605 Figure 54 - Operating hours/Start counter key A single display is available under this key and is dis- Compressor operating hours and compressor starts are played as follows.
Page 130: History Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 History key History key LD10605 Figure 55 - History key History key operation The HISTORY key provides the user access to many XX is the normal shutdown number. The display pro- unit and system operating parameters captured at the vides date and time of the shutdown and the reason for instant a unit or system safety (fault) shutdown occurs.
Page 131 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 XX is the FAULT HISTORY shutdown number. The Unit fault type display will provide the date, time, and a description of UNIT FAULT the specific type of fault that occurred (YYY….). LOW AMBIENT TEMP The operator can view any of the stored 10 fault history This message indicates the type of unit fault.
Page 132 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Load/unload timers VSD data UNIT LOAD TIMER = XXX SEC VSD actual and command frequency UNLOAD TIMER = XXX SEC VSD FREQUENCY ACTUAL = XXX.X HZ COMMAND = XXX.X HZ This message indicates remaining time on the load and unload timers at the time of the fault.
Page 133 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Precharge signal status and VSD cooling Compressor speed and heater status status SYS 1 COMPRESSOR SPEED = XXX.X % HEATER = XXX.X °F PRECHARGE SIGNAL = XXX This message indicates the compressor speed in % and the heater status at the time of the fault.
Page 134 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Compressor #1 run time Maximum remote temperature setpoint SYS 1 RUN TIME SETPOINTS XX DAYS XX HOURS XX MINUTES XX SECONDS MAXIMUM REMOTE TEMP RESET = XXX.X °F This message displays the system run time since the This message displays the maximum remote reset pro- last start in days, hours, minutes, and seconds at the grammed at the time of the fault.
Page 135 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 System lead/lag control mode Low ambient cutout OPTIONS LEAD / LAG CONTROL MODE PROGRAM ◄ ► XXXXXXXXXXXXXXXXXXXXX LOW AMBIENT TEMP CUTOUT = XXX.X °F This message indicates the type of lead lag control se- This message displays the low ambient temp cutout lected at the time of the fault.
Page 136 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Eductor safety time Sound limit setpoint PROGRAM ◄DEF XXXXX LO XXXXX HI XXXXX PROGRAM EDUCTOR SAFETY TIME = XXX MIN SOUND LIMIT SETPOINT = XXX % This message indicates the eductor safety time pro- This indicates the sound limit setpoint programmed at grammed at the time of the fault.
Page 137: Setpoints Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Setpoints key Setpoints key LD10605 Figure 56 - Setpoints key Setpoints key operation Cooling setpoints and ranges may be programmed by SETPOINTS REMOTE SETPOINT = XXX.X °F pressing the SETPOINTS key. The first set point entry REMOTE CONTROL RANGE = +/- X.X °F screen is displayed as shown in this section.
Page 138: Table 24 - Setpoint Limits
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 The ▲ (ARROW) key allows scrolling back through The minimum, maximum, and default values the setpoints displays. allowed under the SETPOINTS key are provided in Table 24 on page 138. Table 24 - Setpoint limits Program value Mode Low limit...
Page 139: Program Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Program key Program key LD10605 Figure 57 - Program key Suction pressure cutout Program key operation Various operating parameters are programmable by the PROGRAM ◄DEF XXXXX LO XXXXX HI XXXXX user. These are modified by pressing the PROGRAM SUCTION PRESSURE CUTOUT = XXX.X PSIG key and then the ...
Page 140 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Low ambient cutout purpose of peak time energy savings. The pulldown PROGRAM ◄DEF XXXXX LO XXXXX HI XXXXX limit point is programmable from 0 to 255 with a LOW AMBIENT TEMP CUTOUT = XXX.X °F default of 0 Min.
Page 141: Table 25 - Programmable Operating Parameters
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 The programmed temperature ensures the micro will Motor temperature unload sense a loss of educator oil flow, if the temperature dif- PROGRAM ◄DEF XXXXX LO XXXXX HI XXXXX ferential rises. A small differential of 2.8°C (5.0°F) is MOTOR TEMPERATURE UNLOAD = XXX °F recommended.
Page 142: Unit Setup Mode
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Unit Setup Mode Use the unit setup mode to modify all of the program- mable values that the user does not usually ever change. These are either programmed at the factory or by ser- vice personnel on the job.
Page 143 (20.69 bard) (5.86 bard) Free Cooling Control Unit Switch is Off Choices: Disabled (must be set Disabled to disabled for correct Open loop YVAA operation) Closed loop Free Cooling is Disabled / Enabled Disabled Disabled Remote Evaporator Optimized Enhanced Disabled...
Page 144 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Table 26 - Setup mode programmable values (cont'd) Unit setup mode Mode to change Minimum Maximum Default setting Voltage Code 380, 400, 460 Quick Start Disabled / Enabled Disabled Discharge Pressure 275 psig 325 psig 300 psig...
Page 145 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Table 26 - Setup mode programmable values (cont'd) Unit setup mode Mode to change Minimum Maximum Default setting Enhanced Fans Mini- 20 % 10 % mum Fan Speed Extended Leaving Disabled / Enabled Disabled Chilled Liquid Setpoint ****Quarterly Service...
Page 146 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 The Compressor Displacement Setup option displays SETUP MODE SYS 1 MOTOR SENSOR TO the compressor type installed in the respective circuits. IGNORE ◄ ► XXXXXXXXXXXXXXXXXXXXX This must be programmed in accordance with the com- SETUP MODE SYS 2 MOTOR SENSOR TO IG- pressor data plate information to ensure the control al- NORE...
Page 147 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 SETUP MODE REMOTE EVAP CONTROL SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX ◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX ECONOMIZER TRANSITION = XX.X % SETUP MODE CONDENSER TYPE SETUP MODE SKIP FREQ Y ◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX ◄...
Page 148 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 SETUP MODE EXTENDED LCHLT SETPOINT ◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX SETUP MODE QUARTERLY SERVICE WARNING ◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX SETUP MODE YEARLY SERVICE WARNING ◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX SETUP MODE 3 YEAR SERVICE WARNING ◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX SETUP MODE 5 YEAR SERVICE WARNING...
Page 149: Options Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Options key Options key LD10605 Figure 58 - Options key Options key operation Local/remote control mode selection The OPTIONS key provides the user with a display of Local or Remote Control Mode allows the user to se- unit configuration and the capability to modify the con- lect the chilled liquid temperature control mode.
Page 150 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Display units selection Remote temperature reset selection Imperial or SI display units may be selected for data Remote temperature reset from an external source may display. be tied directly into the chiller microprocessor board. OPTIONS DISPLAY UNITS OPTIONS...
Page 151 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Low ambient cutout enable/disable OPTIONS REMOTE CURRENT LIMIT INPUT The low ambient cutout may be enabled or disabled. ◄ ► 4.0 TO 20.0 MILLIAMPS When enabled, the chiller cuts OFF when the low am- The default setting for Remote Current Reset is bient cutout is reached.
Page 152: Date/Time And Schedule Keys
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Date/time and schedule keys Date and time key Schedule key LD10605 Figure 59 - Date/time and schedule key Date/time key operation When the DATE/TIME key is pressed, the chiller mi- CLOCK FRI 18-JUN-2011 10:15:33 AM croprocessor will display the date and the time.
Page 153 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 The month can be selected by scrolling through the Pressing the ▼ (DOWN ARROW) key again scrolls to months with the ◄ or ►arrow keys. After the month is the time format selection: selected, the ...
Page 154 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 The HOLIDAY SCHEDULE is a tem- the  (ENTER) key. The cursor will then move to the porary schedule. Once the schedule is AM/PM selection. The meridian (AM/PM) value may executed, the selected holidays will be be changed by the ◄...
Page 155: Manual Override Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Manual override key Manual override key LD10605 Figure 60 - Manual override key Manual override key operation If the MANUAL OVERRIDE key is pressed during a the STATUS display mode. Therefore, do not expect to schedule shutdown, the STATUS display will display see any other STATUS messages when in the MANUAL the message below.
Page 156: Print Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 Print key Print key LD10605 Figure 61 - Print key Print key operation The PRINT key is used to initiate a printout of cur- The following table shows the available printout types. rent operating data (real time data), a complete history printout of all history (fault) buffers, a printout of all Table 27 - Printout types...
Page 157 NONE OPERATING HOURS 1=XXXXX, 2=XXXXX Operating data printout START COUNTER 1=XXXXX, 2=XXXXX YORK INTERNATIONAL CORPORATION SOFTWARE VERSION C.ACS.XX.00 YVAA SCREW CHILLER VSD DATA OPERATING DATA 2:04:14 PM 30 DEC 11 ACTUAL FREQUENCY XXX.X HZ COMMAND FREQUENCY XXX.X HZ SYS 1...
Page 158 CONDENSER FANS ON YORK INTERNATIONAL CORPORATION CONDENSER FAN SPEED XXX% (vsd) COMPRESSOR HEATER YVAA SCREW CHILLER VI STEP SOLENOID 1 HISTORY NUMBER 1 VI STEP SOLENOID 2 2:04:14 PM 30 APR 11 RUN PERMISSIVE...
Page 159: System Switches Key
Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 System switches key System switches key LD10605 Figure 62 - System switches key System switches key operation The SYSTEM SWITCHES key allows the operator The switch selection is accepted into memory by press- to turn individual systems ON and OFF.
Page 160 Form 201.47-ICOM1 SECTION 8 - MICROPANEL Issue date: 17/11/2022 THIS PAGE IS INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
Page 161: Section 9 - Maintenance
Form 201.47-ICOM1 Issue date: 17/11/2022 Section 9 - Maintenance General requirements Operating conditions Read the operating pressures and temperatures at the The units have been designed to operate continuously, control panel using the display keys and check that provided they are regularly maintained and operated these are within the operating limitations given in the within the limitations given in this manual.
Page 162: Leak Testing During Operation
To be able to correctly evacuate, leak test, and charge must be removed, and the system leak checked using the YVAA system, all the vapor connections must be reliable methods like a pressure test. aligned correctly to conduct a correct system service.
Page 163: System Pressure Test
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 What to do next Callout Component Callout Component • For a unit with no loss of pressure, proceed to unit Compressor Condenser discharge line drain liquid evacuation. isolation ball valve service valve •...
Page 164: Conducting The Optional Trace Gas Leak Test
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 5. Mix together soap and water. This solution forms 5. Connect hoses to high and low side of the system bubbles when leaking vapor passes through it. and add dry nitrogen into the chiller until the pres- sure reaches 100 psig (690 kPa).
Page 165: System Evacuation
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 11. When all leaks have been identified, recover the several methods of dehydrating a system, the following test gas as applicable, make the necessary repairs, method produces one of the best results and provides repeat the leak tests, evacuate the chiller, and per- accurate readings of the extent of dehydration.
Page 166: Dehydration
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 28 - System pressures Gauge Absolute Boiling temperatures Inches of mercury psia Millimeters of Microns of water, ⁰F (Hg) below one mercury (Hg) standard atmosphere 0 in. 14.6960 760.00 760,000 10.240 in.
Page 167: Conducting The Dehydration Process
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 the temperature of the vessels, the capacity and effi- When the vacuum indicator registers this temperature ciency of the vacuum pump, the room temperature, and or pressure, it is a positive sign that the system is de- the quantity of water present in the system.
Page 168: Result
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 8. If the vacuum does not hold for within the lim- 7. An acceptable vacuum pressure rise is 150 μm in its defined in Step 6, you must find and repair the 60 minutes.
Page 169: Table 29 - R-134A Pressure To Saturated Temperature Conversion
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 29 - R-134a pressure to saturated temperature conversion Pressure Dew point tem- Pressure Dew point tem- Pressure Dew point tem- psig (bar) perature psig (bar) perature psig (bar) perature 0.0 (0.0) -14.9 (-26.1) 135.0 (9.31) 105.0 (40.6)
Page 170: Table 30 - R-513A Pressure To Saturated Temperature Conversion
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 30 - R-513A pressure to saturated temperature conversion Pressure Temperature Pressure Temperature Pressure Temperature Pressure Temperature psig (bar) average psig (bar) average psig (bar) average psig (bar) average 0.0 (0.0) -20.5 (-29.1) 130 (8.96) 99.3 (37.4)
Page 171: Removing The Refrigerant Charge For Service
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 The charging connection must be evacuated each time Charge the refrigerant in accordance with the method the lines are disconnected for changing cylinders or any shown in this section. The weight of the refrigerant of the components of the charging process.
Page 172: Checking And Trimming The Refrigerant Charge
For YVAA Chillers, a typical way subcooling, the evaporator approach and discharge su- to verify correct charge amount in the system is when perheat are a function of the amount of charge that is Evap sight glass is half-full.
Page 173: Microchannel Coil Cleaning
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Microchannel coil cleaning Standard and Environment Guard coils are grey/silver in color. Regular cleaning is an essential part of maintaining the integrity and heat transfer properties of heat exchang- ers. Failure to follow cleaning guidelines can result in heat exchanger damage, including leaks or loss of per- formance.
Page 174: Steps To Touch-Up Small Sections Of The Finned Coil Surface
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Step 6: Repeat the water rinse as described in Step 2 to 1-8. Refer to the Johnson Controls Microchannel Heat Exchanger Application Guide (Form 150-12-AD1) for remove the salt reducer solution. The final rinse must further details on the classification of polluted and cor- be thorough to ensure all cleaning solution and salt re- rosive environments.
Page 175: Chilled Liquid System Maintenance
A-Urethane Mastic (black component) and Com- Scheduled maintenance ponent B-Urethane Mastic Activator (clear com- The YVAA chiller is equipped with Service Reminder ponent). Warnings that show service reminders on the chiller 2. Thoroughly stir the can containing component A panel every 3 months, 12 months, 36 months, and 60 (Urethane Mastic).
Page 176 Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Before applying power to the chiller, ensure Evaporator freeze damage the chilled liquid system is filled Power must remain on the chiller when- ever the ambient temperature drops below DO NOT apply power to the chiller unless 32°F with water in the evaporator to avoid the system is filled with water or glycol.
Page 177: Maintenance Requirements For Yvaa Chillers
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Maintenance requirements for YVAA chillers Every * Semi- Every 5 Procedure Weekly Quarterly Annually annually years hours Check Oil Level in Oil Separator Sight Glass. Check Liquid Line Sight Glass/Moisture Indicator.
Page 178: Table 32 - Troubleshooting Guide
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 32 - Troubleshooting guide Problem Possible cause Action High Voltage to the Chiller is missing. Check 1FU, 2FU, 4FU, 5FU 17FU, or Supply to the Panel is missing. 19FU. No display on control panel unit Check 2T or 10T Transformer.
Page 179 Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 32 - Troubleshooting guide (cont'd) Problem Possible cause Action Coils dirty. Check and clean coils. Coils are damaged. Comb out fins. System fault: Check fan fuses. High discharge pressure Fans NOT operating. Check fan rotation.
Page 180 Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 32 - Troubleshooting guide (cont'd) Problem Possible cause Action Ambient temperature is high, normal response from controller Remote or panel limiting is in effect, System status: A high motor current anticipatory control Normal response.
Page 181: R-134A Conversion Table
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 R-134a conversion table The following table can be used for converting R-134a pressures to their equivalent saturated temperatures. Table 33 - R-134a pressure to saturated temperature conversion Dew point Dew point Dew point Pressure Pressure psig...
Page 182: R-513A Conversion Table
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 R-513A conversion table The following table can be used for conversion of refriger- ant R-513A from pressure to saturated temperature. Table 34 - R-513A refrigerant pressure to saturated temperature Pressure Temperature Pressure Temperature Pressure...
Page 183: R-513A Conversion Table
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 R-513A conversion table The following table can be used for conversion of refriger- ant R-513A from temperature to equivalent pressure. Table 35 - R-513A refrigerant temperature to pressure Temperature Pressure Temperature Pressure Temperature Pressure...
Page 184: Table 36 - Temperature Input Voltage Sensor (Measured Signal To Shield At The Sensor)
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Chilled liquid and suction temperature sensor input voltage Table 36 - Temperature input voltage sensor (Measured signal to shield at the sensor) Temperature ºF Temperature °F Temperature °F Voltage Voltage Voltage (°c) (°c) (°c)
Page 185: Table 37 - Outside Air Temperature Sensor Input Voltage, Measured Signal To Shield At The Sensor
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 37 - Outside air temperature sensor input voltage, measured signal to shield at the sensor Temperature ºF Temperature ºF Temperature ºF Voltage Voltage Voltage (°c) (°c) (°c) 0.24 (-17.6) 0.68 49.8 (9.9) 2.00 93.3 (34.1)
Page 186: Table 38 - Pressure Transducer Output Voltage, Measured Signal To Return At The Transducer
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 38 - Pressure transducer output voltage, measured signal to return at the transducer Suction pressure transducer Condenser liquid, discharge, and economizer pressure transducers (125 psig) Pressure Voltage Pressure Voltage 0.50 0.50 0.66 0.75...
Page 187: Table 39 - Motor Temperature Sensor Resistance (Check At The Motor)
Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 Table 39 - Motor temperature sensor resistance (Check at the motor) Temperature R nominal R tol Rmin Rmax ºF (ºC) (ohms) (± %) (ohms) (ohms) -4 (-20) 97,062 5.00 92,209 101,915 5 (-15) 77,941 4.60...
Page 188 Form 201.47-ICOM1 SECTION 9 - MAINTENANCE Issue date: 17/11/2022 THIS PAGE IS INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
Page 189: Section 10 - Decommissioning, Dismantling, And Disposal
Form 201.47-ICOM1 Issue date: 17/11/2022 Section 10 - Decommissioning, dismantling, and disposal Never release refrigerant to the atmo- If glycol or similar solutions have been sphere when emptying the refrigerating used in the water system, or chemical circuits. Suitable retrieval equipment additives are contained, the solution must be used.
Page 190: Table 40 - Si Metric Conversion
Form 201.47-ICOM1 Issue date: 17/11/2022 The following factors can be used to convert from English to the most common SI Metric values. Table 40 - SI metric conversion Measurement Multiply English unit By factor To obtain metric unit Capacity Tons refrigerant effect (ton) 3.516 Kilowatts (kW) Power...
Page 191 Form 201.47-ICOM1 Issue date: 17/11/2022 THIS PAGE IS INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
Page 192 5000 Renaissance Drive, New Freedom, Pennsylvania USA 17349 Subject to change without notice. Printed in USA 1-800-524-1330 Copyright © by Johnson Controls 2022 ALL RIGHTS RESERVED www.johnsoncontrols.com Form 201.47-ICOM1 (1122) Issue Date: November 14, 2022 Supersedes 201.47-ICOM1 (622)

York YVAA Installation Operation & Maintenance

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