York YLAA0180 Installation Operation & Maintenance
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York YLAA0180 Installation Operation & Maintenance

Air-cooled scroll chillers with brazed plate heat exchanger style b (50 hz) 4-8 fan
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AIR-COOLED SCROLL CHILLER
INSTALLATION, OPERATION, MAINTENANCE Supersedes: 150.72-ICOM7 (1019) Form 150.72-ICOM7 (1020)
035-23573-100
YLAA0180 - YLAA0517
AIR-COOLED SCROLL CHILLERS
WITH BRAZED PLATE HEAT EXCHANGER
STYLE B (50 HZ) 4-8 FAN
50 - 150 TON
180 - 530 KW
R-410A
Issue Date:
Products are produced at a
f a c i l i t y w h o s e q u a l i t y -
October 22, 2020
management systems are
ISO9001 certified.

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Summary of Contents for York YLAA0180

  • Page 1 AIR-COOLED SCROLL CHILLER INSTALLATION, OPERATION, MAINTENANCE Supersedes: 150.72-ICOM7 (1019) Form 150.72-ICOM7 (1020) 035-23573-100 YLAA0180 - YLAA0517 AIR-COOLED SCROLL CHILLERS WITH BRAZED PLATE HEAT EXCHANGER STYLE B (50 HZ) 4-8 FAN 50 - 150 TON 180 - 530 KW R-410A Issue Date:...
  • Page 2 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 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 ASSOCIATED LITERATURE Manual Description Form Number Start-Up Checklist - Style A and B 150.72-CL1 Renewal Parts - YLAA0180 - YLAA0517 Style B 50 Hz 150.72-RP4 Limited Warranty Engineered Systems Equipment 50.05-NM2 Engineering Supplement - Air-Cooled Liquid Chillers Condenser Corrosion Protection 150.12-ES1...
  • Page 4 NOMINAL CAPACITY UNIT DESIGNATOR REFRIGERANT VOLTAGE/STARTER DESIGN/DEVELOPMENT LEVEL : Design Series A, B, C, F : 200 / 3/ 60 : YORK : R-410A : Standard Efficiency : Development Level A : 230 / 3 / 60 : Scroll : High Efficiency...

  • Page 5: Table Of Contents

    Single-Point Supply Connection – Terminal Block, Non-Fused Disconnect Switch, or Circuit Breaker ..39 SECTION 5 – TECHNICAL DATA ........................45 Operational Limitations ........................... 45 Physical Data YLAA0180 – YLAA0517 50 Hz ....................48 Electrical Data ..............................51 Compressor Heaters ............................51 Electrical Notes ..............................
  • Page 6 Return Chilled Liquid System Lead/Lag and Compressor Sequencing ............159 Anti-Recycle Timer ............................159 Anti-Coincidence Timer ..........................160 Evaporator Pump Control and York Hydro Kit Pump Control ............... 160 Evaporator Heater Control ........................... 160 Pumpdown Control ............................160 Standard Condenser Fan Control ........................ 160 VSD Fan ...............................
  • Page 7 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 TABLE OF CONTENTS (CONT’D) SECTION 9 – SERVICE AND TROUBLESHOOTING ..................167 Clearing History Buffers..........................167 Service Mode ............................... 167 Service Mode – Outputs ..........................167 Service Mode – Chiller Configuration ......................168 Service Mode – Analog and Digital Inputs ....................168 Control Inputs/Outputs ..........................
  • Page 8 FIGURE 13 - Elementary Wiring Diagram ......................60 FIGURE 14 - Elementary Wiring Diagram ......................62 FIGURE 15 - Fan Wiring, Standard Low Sound or Ultra Quiet, YLAA0180 - YLAA0517 ........64 FIGURE 16 - Fan Wiring, High Air Flow .........................66 FIGURE 17 - Single and Dual Point Wiring Options ....................68 FIGURE 18 - Pump Wiring .............................69...
  • Page 9 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 LIST OF TABLES TABLE 1 - Complete Pin Number Description ......................24 TABLE 2 - Temperatures and Flows ........................45 TABLE 3 - Ethylene and Propylene Glycol Correction Factors ................47 TABLE 4 - Physical Data (English) - Standard Efficiency Units ................48 TABLE 5 - Physical Data (English) - High Efficiency Units ..................49 TABLE 6 - Micropanel Power Supply ........................51 TABLE 7 - Voltage Range ............................51...
  • Page 10 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 11: Section 1 - General Chiller Information And Safety

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 SECTION 1 – GENERAL CHILLER INFORMATION AND SAFETY INTRODUCTION YORK YLAA chillers are manufactured to the highest serial number information is printed on the unit identi- design and construction standards to ensure high per- fication plate.

  • Page 12: About This Manual

    FORM 150.72-ICOM7 SECTION 1 – GENERAL CHILLER INFORMATION AND SAFETY ISSUE DATE: 10/22/2020 • ASHRAE 90.1 - Energy Efficiency compliance. The contents of this manual include suggested best working practices and procedures. These are issued for • Conform to Intertek Testing Services, formerly guidance only, and they do not take precedence over ETL, for construction of chillers and provide the above stated individual responsibility and/or local...
  • Page 13 FORM 150.72-ICOM7 SECTION 1 – GENERAL CHILLER INFORMATION AND SAFETY ISSUE DATE: 10/22/2020 Pressure Systems Refrigerants and Oils The unit contains refrigerant vapor and liquid under Refrigerants and oils used in the unit are generally non- pressure, release of which can be a danger and cause toxic, non-flammable and non-corrosive, and pose no injury.
  • Page 14 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 15: Section 2 - Product Description

    ISSUE DATE: 10/22/2020 SECTION 2 – PRODUCT DESCRIPTION GENERAL SYSTEM DESCRIPTION INTRODUCTION YORK YLAA Air-Cooled Scroll Chillers provide Compressors chilled water for all air conditioning applications us- The chiller has suction-gas cooled, hermetic, scroll ing central station air handling or terminal units. They compressors.
  • Page 16 FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 The evaporator is equipped with a thermostat-con- • System pressures (each circuit) trolled heater. The heater provides freeze protection • Operating hours and starts (each compressor) for the evaporator down to -20°F (-29°C) ambient. The •...

  • Page 17: Communications

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 • Discharge pressure (optional) BUILDING AUTOMATION SYSTEM INTERFACE • Liquid Temperature Reset via a Johnson Controls ISN DDC or Building Automation System (by The Microprocessor Board can accept a 4 to 20 A, or 0 others) via a 4 mA to 20 mA or 0 VDC to10 VDC to 10 VDC input to reset the leaving chiller liquid tem- input...
  • Page 18 FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 Single-Point Non-Fused Disconnect Switch Compressor, Piping, Evaporator Options Unit-mounted disconnect switch with external, lockable Low Temperature Glycol handle (in compliance with Article 440-14 of NEC), can Replaces standard Thermostatic Expansion Valves be supplied to isolate the unit power voltage for servic- with Electronic Expansion Valves to achieve leaving ing.
  • Page 19 FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 Heat Recovery Condenser • Wire Panels (Full Unit) - Consists of welded wire-mesh guards mounted on the exterior of the A partially condensing refrigerant to liquid condenser unit. Prevents unauthorized access, yet provides recovers heat off both refrigerant circuits and rejects free air flow.

  • Page 20: Figure 1 - Unit Components (Front)

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 POWER POWER PANEL PANEL ITEM DESCRIPTION Fan assemblies MCHX condenser Control panel Compressors Receiver included with optional heat recovery condenser Filter driers FIGURE 1 - UNIT COMPONENTS (FRONT) JOHNSON CONTROLS...

  • Page 21: Figure 2 - Unit Components (Side)

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 ITEM DESCRIPTION Fan deck MCHX condenser Coil headers Control and power panels Compressors Brazed plate evaporator Formed steel base rails Hydro-kit pumps and motors (optional) FIGURE 2 - UNIT COMPONENTS (SIDE) JOHNSON CONTROLS...

  • Page 22: Figure 3 - Power Panel Components

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 LD13248 ITEM DESCRIPTION Fan contactor Fan fuses Fan contactor Disconnect switch (optional) XTBF1 Compressor contactors Compressor overloads FIGURE 3 - POWER PANEL COMPONENTS JOHNSON CONTROLS...

  • Page 23: Figure 4 - Power Panel / Control Components

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 LD13248 ITEM DESCRIPTION Fan contactor Fan fuses Control relay Microcomputer control center Display Keypad XTBC1 Microboard XTCB2 XTBF2 Compressor contactors Compressor overloads FIGURE 4 - POWER PANEL / CONTROL COMPONENTS JOHNSON CONTROLS...

  • Page 24: Table 1 - Complete Pin Number Description

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 PRODUCT IDENTIFICATION NUMBER (PIN) TABLE 1 - COMPLETE PIN NUMBER DESCRIPTION FEATURE FEATURE OPTION OPTION DESCRIPTION DESCRIPTION MODEL Model (PIN 1-4) YLAA 0180 0180 0195 0080 0210 0090 0220 0091 0221 0091 0240...
  • Page 25 FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 TABLE 1 - COMPLETE PIN NUMBER DESCRIPTION (CONT’D) FEATURE FEATURE OPTION OPTION DESCRIPTION DESCRIPTION SP Supply TB Power Field POWER SP NF Disconnect Switch (PIN 16 &17) SP Circuit Breaker w/ Lockable Handle No Control Transformer Required Cntrl Transformer TRANS...
  • Page 26 FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 TABLE 1 - COMPLETE PIN NUMBER DESCRIPTION (CONT’D) FEATURE FEATURE OPTION OPTION DESCRIPTION DESCRIPTION No Chicago Code Kit required Both Chicago Code & Serv Isolation Chicago Code Kit required Chicago Code Kit CHICAGO Both Suction Service Valve and Dual Relief Valve (Europe only) (PIN 31)
  • Page 27 Special Quote Standard York/JCI Branding Quantech Branding PIN 51 PIN 51 York/JCI Branding with Quantech bag SASO Compliant Label Standard Low Sound Fans required High Airflow Fans required (Vendor Specific) Low Sound Fans required (Vendor Specific) High AirFlow Fans required...
  • Page 28 FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 TABLE 1 - COMPLETE PIN NUMBER DESCRIPTION (CONT’D) FEATURE FEATURE OPTION OPTION DESCRIPTION DESCRIPTION PAINT PIN 53 Special Quote No Isolators required 1 in. Deflection Isolators required Vibration Isolators ISOL Neoprene Isolators required (PIN 54) 2 in.

  • Page 29: Figure 5 - Process And Instrumentation Diagram

    FORM 150.72-ICOM7 SECTION 2 – PRODUCT DESCRIPTION ISSUE DATE: 10/22/2020 Control Functions: DV - Display Value Fans Fans Components: CHT - Chilled Liquid Temperature HPC - High Pressure Cutout Pressure Relief Valve LPC - Low Pressure Cutout HPL - High Pressure Load Limiting Service (Ball) Valve LTC - Low Temperature Cutout Expansion Valve...
  • Page 30 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 31: Section 3 - Handling And Storage

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 SECTION 3 – HANDLING AND STORAGE DELIVERY AND STORAGE INSPECTION To ensure consistent quality and maximum reliability, Remove any transit packing and inspect the unit to en- all units are tested and inspected before leaving the fac- sure that all components have been delivered and that tory.

  • Page 32: Lifting Weights

    FORM 150.72-ICOM7 SECTION 3 – HANDLING AND STORAGE ISSUE DATE: 10/22/2020 LD18119 Carefully read the rigging warning label LIFTING WEIGHTS on the chiller packaging. Refer to the unit nameplate for unit shipping weight. Note that weight may vary depending on unit configu- ration at the time of lifting.

  • Page 33: Lifting Using Lugs

    FORM 150.72-ICOM7 SECTION 3 – HANDLING AND STORAGE ISSUE DATE: 10/22/2020 LIFTING USING LUGS LIFTING USING SHACKLES Units are provided with lifting holes in the base frame The shackles should be inserted into the respective which accept the accessory lifting lug set as shown in holes in the base frame and secured from the inside.

  • Page 34: Figure 6 - Unit Rigging/Lifting

    FORM 150.72-ICOM7 SECTION 3 – HANDLING AND STORAGE ISSUE DATE: 10/22/2020 LD18120 4 - 6 Fan Units LD18121 7 - 8 Fan Units FIGURE 6 - UNIT RIGGING/LIFTING JOHNSON CONTROLS...

  • Page 35: Section 4 - Installation

    HP cutout settings, operating weight of the equipment. See Physical Data design working pressures, and ventilation YLAA0180 – YLAA0517 50 Hz on page 48 for oper- requirements consistent with the amount ating weight. If the unit is elevated beyond the normal and type of refrigerant charge.

  • Page 36: Spring Isolators (Optional)

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 SPRING ISOLATORS (OPTIONAL) 1. The chilled liquid piping system should be laid out When ordered, isolators will be furnished. Identify the so that the circulating pump discharges directly into isolator, locate at the proper mounting point, and adjust the cooler.

  • Page 37: Pipework Arrangement

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 When ducting is to be fitted to the fan discharge it is PIPEWORK ARRANGEMENT recommended that the duct should be the same cross- The following are suggested pipework arrangements sectional area as the fan outlet and straight for at least 3 ft for single unit installations, for multiple unit installa- (1 m) to obtain static regain from the fan.

  • Page 38: Relief Valves

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 aluminum to copper. This transition should be done in Alarm Status Contacts an external box separate to the power panel. Copper Normally-open contacts are available for each re- conductors can then be run from the box to the chiller. frigerant system.

  • Page 39: Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch, Or Circuit Breaker

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 SINGLE-POINT SUPPLY CONNECTION – TERMINAL BLOCK, NON-FUSED DISCONNECT SWITCH, OR CIRCUIT BREAKER Power Panel Power Panel Power Panel Control Panel Control Panel Control Panel XTBC1 Terminal Block, Terminal Block, MICROPANEL MICROPANEL NF Disconnect SW NF Disconnect SW or Circuit Breaker...

  • Page 40: Figure 9 - Control Wiring Inputs

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 USER CONTROL WIRING INPUTS INTERNAL WIRING TO OPTIONAL REMOTE TEMP. RESET BOARD INTERNAL WIRING TO OPTIONAL REMOTE TEMP. RESET BOARD FLOW SWITCH REMOTE UNLOAD STEP 1 PWM REMOTE TEMP RESET INTERNAL WIRING TO 2-KCR CONTROL RELAY INTERNAL WIRING TO 1-KCR CONTROL RELAY REMOTE START / STOP XTBC1...

  • Page 41: Figure 10 - Thermal Dispersion Flow Switch

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 Thermal Dispersion Flow Switch: 1. Thermal Dispersion Flow Switch Operating Principle PIN NUMBERS The operating principle of the thermal dispersion flow switch is based on the calorimetric princi- ple. It uses the cooling effect of a flowing fluid to monitor the flow rate.
  • Page 42 FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 Generally, the thermal dispersion flow switch is shipped with the unit as a loose part. To mount the IFM thermal dispersion switch, use the following guidelines: • Ensure that the sensor tip does not contact the pipe •...

  • Page 43: Figure 12 - Control Wiring Outputs

    FORM 150.72-ICOM7 SECTION 4 – INSTALLATION ISSUE DATE: 10/22/2020 USER CONTROL WIRING OUTPUTS INTERNAL WIRING TO EVAPORATOR HEATER INTERNAL WIRING TO HOT GAS SOLENOID VALVE SYSTEM 2 ALARM DRY CONTACTS (OPEN = ALARM) SYSTEM 1 ALARM DRY CONTACTS (OPEN = ALARM) SYSTEM 2 RUN DRY CONTACTS (CLOSE = RUN) SYSTEM 1 RUN DRY CONTACTS (CLOSE = RUN) EVAPORATOR PUMP DRY CONTACTS (CLOSE = RUN...
  • Page 44 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 45: Section 5 - Technical Data

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 SECTION 5 – TECHNICAL DATA OPERATIONAL LIMITATIONS TABLE 2 - TEMPERATURES AND FLOWS STANDARD EFFICIENCY TEMPERATURE (°C) WATER FLOW (L/S) AIR ON CONDENSER (°C) MODEL YLAA0180SE 12.8 12.6 -23.3 51.7 YLAA0210SE 12.8 12.6 -23.3 51.7 YLAA0241SE 12.8 12.6...
  • Page 46 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 HEAT EXCHANGER FLOW, GPM YLAA Evaporator Pressure Drop (Metric Units) LD18455 Water Flow Rate (m EVAPORATOR YLAA MODELS 0180SE, 0210SE, 0241SE 0286SE, 0195HE, 0221HE 0320SE, 0360SE, 0262HE, 0301HE 0400SE, 0435SE, 0350HE, 0392HE, 0455HE, 0457HE 0485SE, 0442HE 0517HE JOHNSON CONTROLS...

  • Page 47: Table 3 - Ethylene And Propylene Glycol Correction Factors

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 TABLE 3 - ETHYLENE AND PROPYLENE GLYCOL CORRECTION FACTORS ETHYLENE GLYCOL PROPYLENE GLYCOL FREEZE FREEZE COMPR GPM F/ PRESS COMPR GPM F/ PRESS TONS TONS DROP WEIGHT DROP WEIGHT 10.0 24.3 26.2 10.0...

  • Page 48: Physical Data Ylaa0180 - Ylaa0517 50 Hz

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 PHYSICAL DATA YLAA0180 – YLAA0517 50 HZ TABLE 4 - PHYSICAL DATA (ENGLISH) - STANDARD EFFICIENCY UNITS YLAA REFRIGERANT R-410A STANDARD EFFICIENCY UNITS GENERAL UNIT DATA 0180SE 0210SE 0241SE 0286SE...

  • Page 49: Table 5 - Physical Data (English) - High Efficiency Units

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 TABLE 5 - PHYSICAL DATA (ENGLISH) - HIGH EFFICIENCY UNITS YLAA REFRIGERANT R-410A HIGH EFFICIENCY UNITS GENERAL UNIT DATA 0195HE 0221HE 0262HE 0301HE 0350HE 0392HE 0442HE 0457HE 0517HE Nominal Capacity (kW) 197.9 211.1 243.9...
  • Page 50 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 51: Electrical Data

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 ELECTRICAL DATA TABLE 6 - MICROPANEL POWER SUPPLY OVER CURRENT PROTECTION, CONTROL UNIT VOLTAGE SEE NOTE B POWER NF DISC SW NOTE A UNIT MODELS W/O VOLTAGE 115-1-60/50 CONTROL 15 A 10 A 15 A 30 A / 240V...

  • Page 52: Table 8 - Electrical Data Without Pumps

    ISSUE DATE: 10/22/2020 TABLE 8 - ELECTRICAL DATA WITHOUT PUMPS "MAX DUAL ELEM MIN DUAL ELEM CHILLER MODEL VOLT MIN NF DISC SW FUSE FUSE & MIN CB MAX CB" YLAA0180 YLAA0195 YLAA0210 YLAA0221 YLAA0241 YLAA0261 YLAA0262 YLAA0286 YLAA0301 YLAA0320...

  • Page 53: Table 9 - Pump Electrical Data (50 Hz)

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 TABLE 8 - ELECTRICAL DATA WITHOUT PUMPS (CONT’D) SYSTEM #1 SYSTEM #2 COMPR 1 COMPR 2 COMPR 3 STD FLOW FANS COMPR 1 COMPR 2 COMPR 3 STD FLOW FANS RLA LRA RLA LRA RLA LRA QTY FLA LRA RLA LRA RLA LRA RLA LRA QTY FLA LRA 26.9...

  • Page 54: Table 11 - Wiring Lugs

    TABLE 11 - WIRING LUGS LUGS MODEL VOLT HZ "SP SP SUPPLY TB SP CB W/LOCKABLE HANDLE NFDS" YLAA0180 (1) #6 AWG–500 kcmil (2) #3/0 AWG–250 kcmil (1) #6 AWG–350 kcmil YLAA0195 (1) #6 AWG–500 kcmil (1) #6 AWG–350 kcmil (1) #6 AWG–350 kcmil YLAA0210 (1) #6 AWG–500 kcmil...

  • Page 55: Electrical Notes

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 ELECTRICAL NOTES of the rated load amps for all other loads includ- NOTES 1. Minimum Circuit Ampacity (MCA) is based on ed in the circuit. Otherwise, HACR-type circuit 125% of the rated load amps for the largest mo- breakers must be used.
  • Page 56 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
  • Page 57 HEATER RELAY STANDARD YORK ACCESSORIES COMPRESSOR CONTACTOR WIRING AND ITEMS SHOWN THUS ARE - KM (INCLUDING COIL SUPPRESSOR) NOT SUPPLIED BY YORK - KCR CONTROL RELAY ITEMS THUS ENCLOSED FORM A COMPONENTS OR SETS OF PUMP CONTACTOR PART - KP...
  • Page 58 Field wiring to be in accordance with the relevant electrical code as well as all other applicable codes and specifications. All sources of supply shown on this diagram to be taken from one main isolator, not shown or supplied by YORK.
  • Page 59 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 ELECTRICAL NOTES AND LEGEND (CONT’D) Field installed on remote evaporator units. Fitted on units with single phase motors only. Fitted on units with low ambient option only. Only fitted on units with an acoustic kit. Only fitted on heat recovery units.

  • Page 60: Figure 13 - Elementary Wiring Diagram

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 WIRING DIAGRAMS ELEMENTARY WIRING DIAGRAMS 200/230V-3-60HZ 200/230V-3-60HZ 200/230V-3-60HZ 460V-3-60HZ 460V-3-60HZ 460V-3-60HZ 575V-3-60HZ 575V-3-60HZ 575V-3-60HZ 380/415V-3-50/60HZ 380/415V-3-50/60HZ 380/415V-3-50/60HZ -QSD -XTBC NB17 =1-QCB =2-QCB NB31 =1-QCB =2-QCB NB20 =2-TC =1-TC NB20 =1-QMMSC1 =1-QMMSC2 =1-QMMSC3 =2-QMMSC1...
  • Page 61 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 035-21583-101 REV. R -XP2 -XP2 -XTBC2 -XTBC2 200/230V-3-60HZ -XTBC2 460V-3-60HZ 575V-3-60HZ 380/415V-3-50/60HZ /32.10 =1-KCR -XTB8 =1-KM1 =1-KM2 =1-KM3 /2.1 /2.6 /2.6 /2.5 -QCB -QSD -K13 -XP2 -XP2 -XTBC2 -XTBC2 NB16 -XTB8 NB61 -XP3...

  • Page 62: Figure 14 - Elementary Wiring Diagram

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 -AMB -K10 -K15 /1.1 /1.2 /1.5 /1.7 /1.4 -XTB9 -XTB8 -XTB8 -XTB7 -XP2 -XP3 1/1.1 =1-XTBF =2-XTBF -XP3 =1-FHP =2-FHP +EXT +EXT =1-FHP =2-FHP +EXT +EXT P> P> P> P> -XP2 -XP2 -XP2...
  • Page 63 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 -K17 -K19 -K20 -K18 -K21 /1.3 /1.2 /1.3 /1.7 /1.8 /1.8 /1.8 /1.9 -XTB10 -XP3 -XP2 -XP2 -XP2 =1-KCR =2-KCR -XP3 -XP3 -XP3 -XP3 =2-XTBF =2-XTBF =2-KM1 =2-KM2 =2-KM3 NB58B NB59B NB46 NB46...

  • Page 64: Figure 15 - Fan Wiring, Standard Low Sound Or Ultra Quiet, Ylaa0180 - Ylaa0517

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 FAN WIRING 035-21583-103 REV C LD16765a DWG. 3 FIGURE 15 - FAN WIRING, STANDARD LOW SOUND OR ULTRA QUIET, YLAA0180 - YLAA0517 JOHNSON CONTROLS...
  • Page 65 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 LD16766a DWG. 3 FIGURE 15 - FAN WIRING, STANDARD LOW SOUND OR ULTRA QUIET, YLAA0180 - YLAA0517 (CONT’D) JOHNSON CONTROLS...

  • Page 66: Figure 16 - Fan Wiring, High Air Flow

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 FAN WIRING Only fitted on systems with 3 or 4 fans. 035-21583-118 REV C Only fitted on systems with 4 fans. Only fitted on systems with 5 fans. Only fitted on systems with 6 fans.
  • Page 67 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 Only fitted on systems with 3 or 4 fans. Only fitted on systems with 4 fans. Only fitted on systems with 5 fans. DWG. 18 LD16770a FIGURE 16 - FAN WIRING, HIGH AIR FLOW (CONT’D) JOHNSON CONTROLS...

  • Page 68: Figure 17 - Single And Dual Point Wiring Options

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 SINGLE AND DUAL POINT WIRING OPTIONS 035-21583-116 REV A SINGLE POINT WIRING OPTIONS DUAL POINT WIRING OPTIONS DWG. 16 FIGURE 17 - SINGLE AND DUAL POINT WIRING OPTIONS JOHNSON CONTROLS...

  • Page 69: Figure 18 - Pump Wiring

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 PUMP WIRING 035-21583-105 REV D DWG. 5 FIGURE 18 - PUMP WIRING JOHNSON CONTROLS...

  • Page 70: Figure 19 - Connection - Eev Option

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 (/(0(17$5< ',$*5$0 EEV CONTROLLER ((9 &21752//(5 035-21499-105 REV C ((9& ,1387 &21),*85$7,21 9 - 3 72 0,&52%2$5' 67(3 - 67(3 67(3 32/$5,7< &/6 ',5(&7,21 5(63216( 7,0( 38/6( 3(5 6(&21' SSV 9$/9( 23(5$7,21 72 6<67(0  ((9 9...
  • Page 71 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 72: Figure 20 - Compressor Wiring

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 COMPRESSOR WIRING 035-21589-106 REV L FIGURE 20 - COMPRESSOR WIRING JOHNSON CONTROLS...
  • Page 73 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 FIGURE 20 - COMPRESSOR WIRING (CONT’D) JOHNSON CONTROLS...

  • Page 74: Figure 21 - Power Options Connection Diagram

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 POWER OPTIONS CONNECTION DIAGRAM 035-21589-103 REV B 035-21589-103 REVB LD13234A FIGURE 21 - POWER OPTIONS CONNECTION DIAGRAM JOHNSON CONTROLS...
  • Page 75 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 LD13901 FIGURE 21 - POWER OPTIONS CONNECTION DIAGRAM (CONT’D) JOHNSON CONTROLS...

  • Page 76: Figure 22 - Power Panel

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 POWER PANEL 035-21589-101 REV E FIGURE 22 - POWER PANEL JOHNSON CONTROLS...
  • Page 77 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 FIGURE 22 - POWER PANEL (CONT’D) JOHNSON CONTROLS...
  • Page 78 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 MICRO PANEL CONNECTIONS ---> -AMB -XP2 -XTB7 119A 122A 129A 118A 118B 120A 127A 131A 119A 118A 121A 128A 120A 127A -XP2 121A 129B 122B 119B 122A 131B 127B 120B NB34 118B 128B...

  • Page 79: Figure 23 - Micro Panel Connections

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 035-21589-102 REV. O -J15 -XP5 -ADIS NB46 BRN-NEG BRN-POS SHLD GND + +5V GND RXD TXD CTS RTS -SOA SHLD REF - BRN-NEG BRN-POS NB32 NB37 BLCT:BLK BECT:BLK BAMB:BLK BDAT:BLK BLCT:RED BECT:RED BAMB:RED...
  • Page 80 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 DIMENSIONS FOUR FAN UNITS DIMENSIONS – YLAA0180SE, YLAA0195HE, YLAA0210SE 035-24059-015 REV-A LD23529 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.
  • Page 81 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 FOUR FAN UNITS DIMENSIONS – YLAA0221HE, YLAA0241SE, YLAA0261HE, YLAA0262HE, YLAA0286SE, YLAA0320SE 1678 [66.1] 1117 [44.0] 035-24059-002 REV-E POWER ENTRY 330.2 [13.00] WIDE X 177.8 [7.00] HIGH (190mm x 120mm EUROPEAN BUILD) 1177 [46.4] (1298mm EUROPEAN BUILD) CONTROL PANEL BOTTOM DETAIL...
  • Page 82 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 FIVE FAN UNITS DIMENSIONS – YLAA0301HE, YLAA0360SE, YLAA0400SE 035-24059-005 REV E LD27952 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.
  • Page 83 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 SIX FAN UNITS DIMENSIONS – YLAA0350HE, YLAA0391HE, YLAA0392HE, YLAA435SE, YLAA0485SE 2795 [110.0] 1678 [66.1] 035-24059-006 REV E 561 [22.1] POWER ENTRY 330.2 [13.00] WIDE X 177.8 [7.00] HIGH (190mm x 120mm EUROPEAN BUILD) 1177 [46.4] 1298mm EUROPEAN BUILD CONTROL PANEL BOTTOM DETAIL...
  • Page 84 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 SEVEN FAN UNITS DIMENSIONS – YLAA0442HE 3913 [154.1] 2796 [110.1] 035-24059-008 REV-D 1679 [66.1] 562 [22.1] POWER ENTRY 330.2 [13.00] WIDE X 177.8 [7.00] HIGH (190mm x 120mm EUROPEAN BUILD) 1177 [46.4] (1298mm EUROPEAN BUILD) CONTROL PANEL BOTTOM DETAIL...
  • Page 85 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 EIGHT FAN UNITS DIMENSIONS – YLAA0457HE, YLAA0517HE 035-24059-010 REV-D POWER ENTRY 330.2 [13.00] WIDE X 177.8 [7.00] HIGH 1177.0 [46.35] CONTROL PANEL BOTTOM DETAIL (OPTIONAL HEAT 3” VICTAULIC OUTLET RECOVERY UNIT) 3”...

  • Page 86: Weight Distribution And Isolator Mounting Positions

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 WEIGHT DISTRIBUTION AND ISOLATOR Whenever the isolator option is ordered, the isolators MOUNTING POSITIONS will be shipped loose with the chiller. Packed with the isolators and also in the control panel informa- General tion packet is a drawing and table specifically for each Weights of specific chiller models vary significantly as...

  • Page 87: Clearances

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 CLEARANCES See Figure 25 for minimum clearances for all YLAA units. (2 m) (1.3 m) NOTES: 1. No obstructions allowed above the unit. 2. Only one adjacent wall may be higher than the unit. 3.

  • Page 88: Four Fan Isolator Locations

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 ISOLATOR LOCATIONS FOUR FAN ISOLATOR LOCATIONS [36.4] [36.4] LD17643 FIVE AND SIX FAN ISOLATOR LOCATIONS [36.4] [36.4] [194.6] NOTE: All Dimensions In Inches (Millimeters) LD17644 JOHNSON CONTROLS...

  • Page 89: Seven And Eight Fan Isolator Locations

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 SEVEN AND EIGHT FAN ISOLATOR LOCATIONS [36.4] 85.4 [2169.2] 69.0 75.5 33.3 [194.6] [1753.2] [1917.9] [845.6] [36.4] LD17645 NOTE: All Dimensions In Inches (Millimeters) JOHNSON CONTROLS...

  • Page 90: Isolator Information

    FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 ISOLATOR INFORMATION One Inch Deflection Spring Isolator Cross-reference 5/8" Ø1/2" H" C" T" B" L" D" W" LD13759A MOUNT DIMENSION DATA (IN.) TYPE 7 3/4 6 1/2 4 3/4 5 5/8 10 1/2 9 1/4 7 3/4...
  • Page 91 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 ONE IN. DEFLECTION SPRING ISOLATORS INSTALLATION INSTRUCTIONS 1. Read instructions in their entirety before begin- 6. The adjustment process can only begin after the ning installation. equipment or machine is at its full operating weight.
  • Page 92 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 2 IN. DEFLECTION ISOLATOR CROSS-REFERENCE Y2RS 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" LD13761A 3-1/2"...
  • Page 93 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 2 IN. DEFLECTION ISOLATOR INSTALLATION AND ADJUSTMENT 1. Read instructions in their entirety before begin- equipment or bracket to the top plate (“A”) of iso- ning installation. lator with a minimum of 3/8 fillet welds 2 in. long @ 3 in.
  • Page 94 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 NEOPRENE ISOLATOR CROSS-REFERENCE RD-Style Isolators MOLDED DURULENE ø D THRU TYP 2 PLACES LD13760A 1. All dimensions are inches, interpreted per ANSI 4. AL = Mounting hole center to center spacing. Y14.
  • Page 95 FORM 150.72-ICOM7 SECTION 5 – TECHNICAL DATA ISSUE DATE: 10/22/2020 INSTALLATION OF NEOPRENE VIBRATION ISOLATORS 1. Read instructions in their entirety before begin- 4. Bolt or anchor all isolators to supporting structure ning installation. utilizing base thru holes (“B”). 2. Isolators are shipped fully assembled and are to be 5.
  • Page 96 FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 97: Section 6 - Commissioning

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 SECTION 6 – COMMISSIONING Commissioning of this unit should only ALWAYS keep the water pump running be carried out by Johnson Controls Au- when vacuuming the system, removing thorized personnel. refrigerating from the system or adding refrigerant to the system until the process is completed.
  • Page 98 FORM 150.72-ICOM7 SECTION 6 – COMMISSIONING ISSUE DATE: 10/22/2020 6. Open the valve on the drum and reverse the drum, Service and Oil Line Valves so only liquid is charged into the system. Open each compressor suction, economizer, and dis- charge service valve.

  • Page 99: Figure 26 - Led Indicator Buttons

    FORM 150.72-ICOM7 SECTION 6 – COMMISSIONING ISSUE DATE: 10/22/2020 Power Connections Flow Switch Check that the customer power cables are connected Verify a chilled water flow switch is correctly fitted in correctly to the terminal blocks or optional circuit the customer’s piping on the cooler outlet, and wired breaker.

  • Page 100: Figure 27 - Flow Switch Set

    FORM 150.72-ICOM7 SECTION 6 – COMMISSIONING ISSUE DATE: 10/22/2020 Determining Proper Oil Levels The following chart lists the proper oil levels in tandem and trio compressor manifold sets. TABLE 12 - OIL LEVELS IN TANDEM SETS TANDEM COMPRESSOR COMPRESSOR OIL LEVEL STATUS 1/8 to full SG Bottom of SG...

  • Page 101: Preparation - Power On

    FORM 150.72-ICOM7 SECTION 6 – COMMISSIONING ISSUE DATE: 10/22/2020 JUMP INPUT LOCATION SIGNAL 0–10 V DIP SWITCH ALL OTHER YLAA0230 NUMBER CHILLERS DIP SWITCH NUMBER CHILLERS LD23530 FIGURE 28 - EEV IB-G INTERFACE BOARD Sporlan EEV Interface Board PREPARATION – POWER ON Perform the commissioning using the Verify the jumper and dip switch settings, Figure 28 detailed checks outlined.
  • Page 102 FORM 150.72-ICOM7 SECTION 6 – COMMISSIONING ISSUE DATE: 10/22/2020 YLAA Supersedes 150.72-CL1 (818) INSTALLATION CHECKLIST Form 150.72-CL1 (320) STARTUP CHECKLIST CUSTOMER: ____________________________________ JOB NAME: ____________________________________ ADDRESS: _____________________________________ LOCATION: ____________________________________ PHONE: ________________________________________ CUSTOMER ORDER NO: _________________________ JCI TEL NO: _____________________ JCI ORDER NO: __________________ JCI CONTRACT NO: ______________ CHILLER MODEL NO: ____________________________ UNIT SERIAL NO: _______________________________...
  • Page 103 Remote Temperature Reset 7. Place the Unit Switch in the control panel to the ON External Evaporator Pump position ................ YORK Hydro Kit Pump NOTE: The chilled liquid setpoint may need to be Pump Selection temporarily lowered to ensure all compressors cycle ON.
  • Page 104 FORM 150.72-ICOM7 SECTION 6 – COMMISSIONING ISSUE DATE: 10/22/2020 FORM 150.72-CL1 (120) ISSUE DATE: 03/06/2020 D. CHECKING SUPERHEAT AND SUBCOOLING The subcooling temperature of each system can be calcu- Example: lated by recording the temperature of the liquid line at the Suction Temp = 46°F outlet of the condenser and subtracting it from the liquid...

  • Page 105: Section 7 - Unit Controls

    LD13283 INTRODUCTION IPU II AND I/O BOARDS The YORK Control Center is a microprocessor based The IPU and I/O boards are assembled to function as control system designed to provide the entire control a single microprocessor controller. The IPU II board for the liquid chiller.

  • Page 106: Transformer

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 and unit sensors (transducers and temp sensors) are KEYPAD supplied power for the micro board +5 V supply. 24 The 12 button non-tactile keypad allows the user to VAC is rectified, but not regulated, to provide unregu- retrieve vitals system parameters such as system pres- lated +30 VDC to supply all of the digital inputs.

  • Page 107: Status Key

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 STATUS KEY 00066VIP Unit Status Pressing the STATUS key will enable the operator to D A I L Y S C H E D U L E determine current chiller operating status. The messag- S H U T D O W N es displayed will include running status, cooling de- mand, fault status, external cycling device status.
  • Page 108 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 The limiting pressure is a factory set limit to keep the S Y S C O O L L O A D system from faulting on the high discharge pressure S Y S C O O L L O A D...
  • Page 109 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 when in the MANUAL OVERRIDE mode. MANUAL S Y S L O W S U C T P R E S S OVERRIDE is to only be used in emergencies or for S Y S L O W S U C T...
  • Page 110 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 The internal motor protector opens at 185°F to 248°F This safety will shut down a system if either suction (85°C to 120°C) and auto resets. The mechanical HP temperature or suction pressure sensors read out of switch opens at 585 PSIG plus or minus 10 psig (27.92 range high or low.
  • Page 111 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 points, program values, options, time, schedule, and U N I T F A U L T : history buffers will be lost. These values will all be re- H I G H M T R C U R R set to their default values which may not be the desired...

  • Page 112: Table 12 - Ylaa Fault And Inhibit Codes

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Fault and Inhibit Codes and Reset Table 14 shows the fault and inhibit codes and how to reset them. There are three ways to reset the fault and inhibit. See Table 15 for more information. TABLE 14 - YLAA FAULT AND INHIBIT CODES AUTO, 1X, 3X CODE...

  • Page 113: Figure 31 - Status Key Messages Quick Reference List

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 STATUS KEY MESSAGES General Messages Fault Messages Unit Safeties & System Safeties Unit Switch Off Warning Messages Shutdown Remote Controlled System X High Disch Pressure Low Ambient Temp Shutdown Daily Schedule Low Liquid Temp System X Low Suct Pressure Shutdown...

  • Page 114: Display/Print Keys

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 DISPLAY/PRINT KEYS 00067VIP The Display/Print keys allow the user to retrieve sys- With the “UNIT TYPE” set as a liquid chiller (no tem and unit information that is useful for monitoring jumper from J11-7 to J11-12 on the I/O Board), the chiller operation, diagnosing potential problems, trou- following list of operating data screens are viewable...
  • Page 115 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 S Y S 7 2 . 1 P S I G C O O L I N G D E M A N D = 2 2 7 . 0 P S I G S T E P S These displays show suction and discharge pressures...
  • Page 116 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 E V A P O R A T O R W A T E R S Y S C O M P S T A T U S P U M P S T A T U S = X X X X 1 = X X X...

  • Page 117: Figure 32 - Operation Data

    DEFROST TERMINATION TIME 3MIN BIVALENT HEAT DELAY TIME 30 MIN Current Feedback One Per System REMOTE UNIT ID PROGRAMMED YORK HYDRO KIT PUMPS 1 (410a) PUMP TOTAL RUN HOURS XXXXX (410a) * Block of information repeats for each system LD12585 UNIT DATA RETURN LIQUID TEMP 58.2 DEGF...
  • Page 118 MON START=00:00AM STOP=00:00AM TUE START=00:00AM STOP=00:00AM follows. WED START=00:00AM STOP=00:00AM THU START=00:00AM STOP=00:00AM FRI START=00:00AM STOP=00:00AM YORK INTERNATIONAL CORPORATION SAT START=00:00AM STOP=00:00AM MILLENNIUM LIQUID CHILLER HOL START=00:00AM STOP=00:00AM SAFETY SHUTDOWN NUMBER 1 SHUTDOWN @ 3:56PM 29 SEP 07...
  • Page 119 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 History Displays The HISTORY key gives the user access to many unit C O N T R O L M O D E and system operating parameters at the time of a unit L E A V I N G L I Q U I D or system safety shutdown.
  • Page 120 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 L E A D S Y S T E M L E A V I N G L I Q U I D T E M P S Y S T E M N U M B E R C U T O U T X X X .
  • Page 121 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 der the PROGRAM key, the display will be the first S Y S S U C T X X X . X ° F display before the SYS 1 info. If the microprocessor is S A T S U C T X X X .

  • Page 122: Entry Keys

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 ENTRY KEYS 00068VIP The Entry Keys allows the user to view, change pro- Enter/Adv Key grammed values. The ENTRY keys consist of an ↑ (UP) The ENTER/ADV key must be pushed after any change arrow key, ↓...

  • Page 123: Set Points Keys

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 SET POINTS KEYS 00069VIP Programming of the cooling set points, daily schedule, Leaving Chilled Liquid Control and safeties is accomplished by using the keys located S E T P O I N T 4 5 .

  • Page 124: Schedule/Advance Day Key

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 ter of the control range. If the control mode has been The following messages illustrate both leaving chilled programmed for RETURN LIQUID control, the mes- liquid control and return chilled liquid control respec- sage below would be displayed in place of the previous tively.

  • Page 125: Table 14 - Cooling Set Point, Programmable Limits, And Defaults

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 16 - COOLING SET POINT, PROGRAMMABLE LIMITS, AND DEFAULTS SET POINT KEY MODE LOW LIMIT HIGH LIMIT DEFAULT 40.0°F **70.0°F 44.0°F WATER COOLING 4.4°C 21.1°C 6.7°C 19.0°F 70.0°F 44.0°F LEAVING CHILLED LIQUID SET POINT GLYCOL COOLING* -7.2°C...

  • Page 126: Program Key

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 PROGRAM KEY The LOW AMBIENT TEMP CUTOUT allows the user There are several operating parameters under the PRO- to select the chiller outside ambient temperature cutout GRAM key that are programmable. These set points point.
  • Page 127 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 System Trip Volts F A N D I F F E R E N T I A L O F F P R E S S U R E X X X P S I G For individual system high current trip programming on chillers:...

  • Page 128: Table 15 - Program Key Limits And Default

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 17 - PROGRAM KEY LIMITS AND DEFAULT PROGRAM VALUE MODE LOW LIMIT HIGH LIMIT DEFAULT 325 psig 575 psig 570 psig DISCHARGE PRESSURE CUTOUT — 22.40 barg 39.60 barg 39.30 barg 80 psig 120 psig...

  • Page 129: Figure 33 - Set Points Quick Reference List

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Quick Reference Programming Chart Setpoints Section Cooling Setpoints Key Schedule/ Program Mode (press key to adv.) Advance Day Key (press enter to adv.) Local Leaving Mon. – Sun. Discharge Water Temp Control &...

  • Page 130: Table 16 - Program Key Limits And Default

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Service Mode The Service Mode allows the user to view all of the 30 minutes and returns to normal control. The user can inputs and enable or disable all of the outputs on the disable the Service Mode by turning on the unit switch unit, except the compressors.
  • Page 131 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 18 - PROGRAM KEY LIMITS AND DEFAULT (CONT’D) PROGRAM VALUE LOW LIMIT HIGH LIMIT OPTIONS DEFAULT (European Feature Set, Control Mode — — R-410A/R-454B) LEAVING LEAVING or RETURN (European Feature Set, R-410A/R-454B) Current Feedback —...

  • Page 132: Unit Keys

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 UNIT KEYS OPTIONS CLOCK 00070VIP Options Key Option 1 – Language There are many user programmable options under the D I S P L A Y L A N G U A G E OPTIONS key.
  • Page 133 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Option 4 – Local/Remote Control Type S Y S S W I T C H O F F S Y S S W I T C H L O C A L R E M O T E M O D E L L O C A L...
  • Page 134 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Option 6 – Display Units Option 8 – Condenser Fan Control Mode F A N C O N T R O L D I S P L A Y U N I T S D I S C H A R G E P R E S S U R E I M P E R I A L...
  • Page 135 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Option 10– Current Feedback Options Option 12 – Soft Start Enable/Disable Installed S O F T S T A R T C U R R E N T F E E D B A C K D I S A B L E D N O N E SOFT START “DISABLED”...
  • Page 136 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Option 15 – Expansion Valve Type E X P A N S I O N V A L V E T Y P E F L A S H C A R D U P D A T I N G T H E R M O S T A T I C P L E A S E...
  • Page 137 P U M P S S Y S T E M When YORK HYDRO KIT PUMPS = 1, the controls When programmed for hot gas bypass type System 1, will be closed to run the pumps whenever any one of...
  • Page 138 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Clock Option 22– Temperature Sensors Enable This option will display for YLAA and YLPA R-410A The CLOCK display shows the current day, time, and units. date. Press the CLOCK key to view the current day, time, and date.

  • Page 139: Figure 34 - Unit Keys Options Programming Quick Reference List

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Options Key Expansion Valve Type (press Options Key (Thermoplastic or Electric) to adv.) (Programmed under Service Display Language Mode, Viewable Only) Must be programmed for Thermostatic System Switches on/off Flash Card Update Chilled Liquid Type (water or glycol) Remote Temp Reset...

  • Page 140: Bacnet, Modbus, N2, And Yorktalk 2 Communications

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 BACNET, MODBUS, N2, AND YORKTALK 2 COMMUNICATIONS • RS-485: connect to TB2 - Network (-1) to TB2 Data can be read and in some cases modified using a (-1); Network (+1) to TB2 (+1) serial communication BACnet, Modbus or YorkTalk 2 network connection.

  • Page 141: Figure 35 - Micro Panel Connections

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 035-02550-xxx I/O Board LD14318 FIGURE 33 - MICRO PANEL CONNECTIONS The table below shows the minimum, maximum, and default values. TABLE 19 - MINIMUM, MAXIMUM AND DEFAULT VALUES DESCRIPTION MINIMUM MAXIMUM DEFAULT DE MODIFIER ADDRESS...

  • Page 142: Table 18 - Values Required For Bas Communication

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 The table below shows set-up requirements for each communication protocol. TABLE 20 - VALUES REQUIRED FOR BAS COMMUNICATION PROTOCOL SETTING DESCRIPTION BACNET MS/TP MODBUS RTU YORKTALK 2 DE MODIFIER ADDRESS 0 to 41943 0 to 41943 DE MODIFIER OFFSET...

  • Page 143: Table 19 - Real Time Error Numbers

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Communications Data Map Notes (See Table 22) TABLE 21 - REAL TIME ERROR NUMBERS ERROR 1. IPU II based units are configured for Native BAC- NUMBER DESCRIPTION net MS/TP and Modbus RTU communications. (##) E-Link Gateway not required for these two com- ALL OK...

  • Page 144: Table 20 - Native Bacnet, Modbus, And N2 Communications Data Map

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 22 - NATIVE BACNET, MODBUS, AND N2 COMMUNICATIONS DATA MAP JOHNSON CONTROLS...
  • Page 145 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 20 - NATIVE BACNET, MODBUS, AND N2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...
  • Page 146 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 20 - NATIVE BACNET, MODBUS, AND N2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...
  • Page 147 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 20 - NATIVE BACNET, MODBUS, AND N2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...

  • Page 148: Table 21 - Yorktalk 2 Communications Data Map

    FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 Yorktalk 2 Communications Transmitted Data After receiving a valid transmission from the E-Link Received Data (Control Data) Gateway, the unit will transmit either operational data The unit receives eight data values from the E-Link or history buffer data depending on the “History Buffer Gateway.
  • Page 149 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 23 - YORKTALK 2 COMMUNICATIONS DATA MAP JOHNSON CONTROLS...
  • Page 150 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 21 - YORKTALK 2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...
  • Page 151 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 21 - YORKTALK 2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...
  • Page 152 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 21 - YORKTALK 2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...
  • Page 153 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 21 - YORKTALK 2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...
  • Page 154 FORM 150.72-ICOM7 SECTION 7 – UNIT CONTROLS ISSUE DATE: 10/22/2020 TABLE 21 - YORKTALK 2 COMMUNICATIONS DATA MAP (CONT’D) JOHNSON CONTROLS...

  • Page 155: Section 8 - Unit Operation

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 SECTION 8 – UNIT OPERATION Unit Operating Sequence The operating sequence described below relates to op- 7. As the load decreases below set point, the com- eration on a hot water start after power has been ap- pressors will be shut down in sequence.

  • Page 156: Suction Pressure Limit Controls

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 SUCTION PRESSURE LIMIT CONTROLS The anticipatory controls are intended to prevent the If after 60 s of run-time the leaving chilled liquid tem- unit from ever actually reaching a low-pressure cut- perature is still above the Set Point High Limit, the next out.

  • Page 157: Leaving Chilled Liquid Control Override To Reduce Cycling

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 TABLE 24 - SAMPLE COMPRESSOR STAGING FOR RETURN WATER CONTROL COMPRESSOR STAGING FOR RETURN WATER CONTROL 4 COMPRESSOR COOLING SET POINT = 45 °F (7.2 °C) RANGE = 10 °F (5.6 °C) # OF COMP ON * 1+HG 45°F...

  • Page 158: Leaving Chilled Liquid System Lead/Lag And Compressor Sequencing

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 LEAVING CHILLED LIQUID SYSTEM LEAD/ RETURN CHILLED LIQUID CONTROL LAG AND COMPRESSOR SEQUENCING (Can be used on Dual System 4, 5 and 6 Comp Units A Lead/Lag option may be selected to help equalize Only) average run hours between systems with 2 refriger- Return chilled liquid control is based on staging the...

  • Page 159: Return Chilled Liquid System Lead/Lag And Compressor Sequencing

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 The return chilled liquid set point is programmable RETURN CHILLED LIQUID SYSTEM LEAD/ from 40°F to 70°F (4.4°C to 21.1°C) in water chilling LAG AND COMPRESSOR SEQUENCING mode and from 10°F to 70°F (-12.2°C to 21.1°C) in A Lead/Lag option may be selected to help equalize glycol chilling mode.

  • Page 160: Anti-Coincidence Timer

    DO NOT SELECT the option “YORK HYDRO KIT PUMPS = 2” under the When a fan stage is turned OFF (programmed on pres- OPTIONS key. If a dual pump option is installed, the sure minus programmed differential), the off pressure active pump is selected by the selector switch.

  • Page 161: Vsd Fan

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 CHANGING THE SWITCH POINT OF THE VSD FAN THERMAL DISPERSION FLOW SWITCH VSD fans are equipped and controlled to extend the To change the factory-set LED 7, complete the follow- minimum starting ambient temperature to -10°F ing steps: (-23.3°C).

  • Page 162: Table 25 - Ylaa Standard Condenser Fan Control Using Discharge Pressure Only (2, 3, Or 4 Fans Per System)

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 TABLE 27 - YLAA STANDARD CONDENSER FAN CONTROL USING DISCHARGE PRESSURE ONLY (2, 3, OR 4 FANS PER SYSTEM) IPUII I/O OUTPUT FAN # CONTACTOR OFF** STAGE SYS 1 SYS 2 SYS 1 SYS 2 SYS 1...

  • Page 163: Table 26 - Ylaa Standard Condenser Fan Control Using Discharge Pressure Only

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 TABLE 28 - YLAA STANDARD CONDENSER FAN CONTROL USING DISCHARGE PRESSURE ONLY (5 OR 6 FANS PER SYSTEM) IPUII I/O OUTPUT FAN CONTACTOR FAN # OFF** STAGE SYS 1 SYS 2 SYS 1 SYS 2 SYS 1...

  • Page 164: Load Limiting

    There are two ways to load limit the unit. The first is through remote communication via an ISN. Load limit stages are sent through YORK Talk on pages 9 and 10 of feature 54. Page 9 is stage 1 load limit and page 10 COMPRESSOR RUN STATUS is stage 2 load limit.

  • Page 165: Remote Bas/Ems Temperature Reset Using A Voltage Or Current Signal

    FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 REMOTE BAS/EMS TEMPERATURE RESET USING A VOLTAGE OR CURRENT SIGNAL If a 4 mA to 20 mA signal is supplied, it is applied to The Remote Reset Option allows the Control Center Terminals A+ and A- and jumper JP1 on the I/O board of the unit to reset the chilled liquid set point using a must be installed between pin 1 and 2.
  • Page 166 FORM 150.72-ICOM7 SECTION 8 – UNIT OPERATION ISSUE DATE: 10/22/2020 THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 167: Section 9 - Service And Troubleshooting

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 SECTION 9 – SERVICE AND TROUBLESHOOTING CLEARING HISTORY BUFFERS SERVICE MODE – OUTPUTS The history buffers may be cleared by pressing the After pressing the key sequence as described, the con- HISTORY key and then repeatedly pressing the UP trol will enter Service Mode permitting the outputs arrow key until you scroll past the last history buffer (except compressors), operating hours, refrigerant...

  • Page 168: Service Mode - Chiller Configuration

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 REMOTE INPUT SERVICE TIME = SYS 2 HOURS “NORTH AMERICAN FEATURE SET ENABLED” SYS 1 STARTS HYDRO PUMP SELECTION SYS 2 STARTS EVAP PUMP TOTAL RUN HOURS The last displays shown on the above list are for the ac- SYS 1 HOURS cumulated run and start timers for each system.

  • Page 169: Control Inputs/Outputs

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TABLE 31 - I/O DIGITAL OUTPUTS S Y S S U C T J 7 - 1 0 TB7-2 SYS 1 Compressor 1 2 . 1 V D C P S I G TB7-3 SYS 1 Liquid Line Solenoid Valve...

  • Page 170: Figure 39 - Microboard Layout

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 I/O BOARD BOARD TB10 LD12721 FIGURE 37 - MICROBOARD LAYOUT JOHNSON CONTROLS...

  • Page 171: Checking Inputs And Outputs

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 CHECKING INPUTS AND OUTPUTS TABLE 34 - OUTDOOR AIR SENSOR TEMPERA- TURE/VOLTAGE/CORRELATION Digital Inputs VOLTAGE See the unit wiring diagram. All digital inputs are con- TEMP °F (SIGNAL INPUT TEMP °C nected to J13-1 of the I/O board.

  • Page 172: Table 33 - Entering/Leaving Chilled Liquid Temp. Sensor, Temperature/Voltage Correlation

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TABLE 35 - ENTERING/LEAVING CHILLED LIQ- Liquid and Refrigerant Sensor Test Points UID TEMP. SENSOR, TEMPERATURE/ (See Table 35 on page 172) VOLTAGE CORRELATION VOLTAGE Entering Chilled Liquid Sensor TEMP °F (SIGNAL INPUT TEMP °C...

  • Page 173: Table 34 - Pressure Transducers

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 J9-7 = +5 VDC return TABLE 36 - PRESSURE TRANSDUCERS 0-400 PSIG SUCTION 0-600 PSIG DISCHARGE J9-2 = drain (shield connection = 0 VDC) PRESSURE PRESSURE TRANSDUCER TRANSDUCER The suction transducers have a range from 0 psig to PRESSURE VOLTAGE PRESSURE...

  • Page 174: Figure 40 - I/O Board Relay Contact Architecture

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 Each output is controlled by the microprocessor by Data Logging to Flash switching 120 VAC to the respective output connection Enabling Data Logging to Flash energizing contactors, evaporator heater, and solenoids The user can enable data logging to an SD card in the according to the operating sequence.

  • Page 175: Table 35 - Data Logging To Flash

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TABLE 37 - DATA LOGGING TO FLASH DATA HEADER DATA NUMBER TEXT UNIT FORMAT VALUE DESCRIPTION Date x/x/xxxx Date Time x:x:x Time (24 Hour Format) Elapsed Time Elapsed time (seconds since data logging started) LCHLT °F Leaving Chilled Liquid Temperature...
  • Page 176 FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TABLE 35 - DATA LOGGING TO FLASH (CONT’D) DATA HEADER DATA NUMBER TEXT UNIT FORMAT VALUE DESCRIPTION Sys 1 EEV Controller State 031-02755-001, -003 Sys 1 CSHALG_CURRENT_CYCLE_INDEX, S1 EEV Ctlr State 0 = Setup, 1 = Off, 2 = Pulldown, 3 = Controlling, 4 = Pumpdown, 5 = MOP Control 031-02755-004 S1 Dfst Temp...

  • Page 177: Optional Printer Installation

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TABLE 35 - DATA LOGGING TO FLASH (CONT’D) DATA HEADER DATA NUMBER TEXT UNIT FORMAT VALUE DESCRIPTION Sys 1 CSHALG_PROPORTIONAL_CONTRIBUTION_INDEX S1 Prop Cont In (0-10000 in x100 format) Sys 1 CSHALG_INTEGRAL_CONTRIBUTION_INDEX S1 Int Cont In (0-1000000 in x10000 format) Sys 1 CSHALG_DERIVATIVE_CONTRIBUTION_INDEX...

  • Page 178: Figure 41 - Printer To Microboard Electrical Connections

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 Assembly and Wiring Obtaining a Printout Assemble and wire all components as shown in Figure To obtain a printout, press the PRINT key on the key- 39. Strip the outside insulation back several inches and pad and then press either the OPER DATA key or HIS- individual wires about 3/8 in.

  • Page 179: Troubleshooting

    FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TROUBLESHOOTING TABLE 38 - TROUBLESHOOTING PROBLEM CAUSE SOLUTION 1. No 115 VAC to 24 VAC 1a. Check wiring and fuse 1FU. Transformer. 1b. Check wiring emergency stop contacts 5 to L of XTBC2 Terminal Block.
  • Page 180 FORM 150.72-ICOM7 SECTION 9 – SERVICE AND TROUBLESHOOTING ISSUE DATE: 10/22/2020 TABLE 32 - TROUBLESHOOTING (CONT’D) PROBLEM CAUSE SOLUTION 1. Improperly adjusted leaving 1. Re-program the leaving chilled liquid temp. chilled liquid temp. cutout (glycol cutout. only). 2. Micro panel set point/range 2.

  • Page 181: Section 10 - Maintenance

    • Do not use a pressure washer to clean the MCHX. Use YORK “V” oil when adding oil. While it is possible to clean a the MCHX with a pressure washer, it’s also possible to destroy it.

  • Page 182: Operating Parameters

    FORM 150.72-ICOM7 SECTION 10 – MAINTENANCE ISSUE DATE: 10/22/2020 out, running water through every passage in the THERMAL DISPERSION FLOW SWITCH heat exchanger surface until it is clean. Use a gen- Check the sensor tip for buildup regularly, because it tle spray from a spray nozzle with a plastic end or can affect the sensitivity of the sensor.
  • Page 183 FORM 150.72-ICOM7 SECTION 10 – MAINTENANCE ISSUE DATE: 10/22/2020 TEMPERATURE CONVERSION CHART TEMPERATURE CONVERSION CHART Temperature Conversion Chart - Temperature Conversion Chart - Actual Temperatures Differential Temperatures ° F ° C °C °F ° F ° C °C °F -17.8 -0.4 -15.6 -13.3...
  • Page 184 FORM 150.72-ICOM7 SECTION 10 – MAINTENANCE ISSUE DATE: 10/22/2020 R-410A PRESSURE TEMPERATURE CHART PSIG TEMP ˚F PSIG TEMP ˚F JOHNSON CONTROLS...

  • Page 185: Temperature

    FORM 150.72-ICOM7 ISSUE DATE: 10/22/2020 The following factors can be used to convert from English to the most common SI Metric values. TABLE 39 - SI METRIC CONVERSION MEASUREMENT MULTIPLY ENGLISH UNIT BY FACTOR TO OBTAIN METRIC UNIT Capacity Tons Refrigerant Effect (ton) 3.516 Kilowatts (kW) Power...
  • Page 186 1-800-524-1330 5000 Renaissance Drive, New Freedom, Pennsylvania USA 17349 Subject to change without notice. Printed in USA www.johnsoncontrols.com Copyright © by Johnson Controls 2020 ALL RIGHTS RESERVED Form 150.72-ICOM7 (1020) Issue Date: October 22, 2020 Supersedes: 150.72-ICOM7 (1019)

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