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York YCUL0045E Installation Operation & Maintenance

York YCUL0045E Installation Operation & Maintenance

R22 & hfc - 407c style c (50 hz.) with ipu ii and i/o boards

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AIR-COOLED CONDENSING UNITS
HERMETIC SCROLL
Supersedes 150.63-NM8 (209)
Form 150.63-NM8 (1020)
INSTALLATION, OPERATION, MAINTENANCE
035-22319-000
YCUL0045E_ - YCUL0275E_
R22 & HFC - 407C
STYLE C
(50 Hz.)
WITH IPU II AND I/O BOARDS
Standard, Glycol & Metric Models, Combined
380-415/5
MODELS ONLY

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Summary of Contents for York YCUL0045E

  • Page 1 AIR-COOLED CONDENSING UNITS HERMETIC SCROLL Supersedes 150.63-NM8 (209) Form 150.63-NM8 (1020) INSTALLATION, OPERATION, MAINTENANCE 035-22319-000 YCUL0045E_ - YCUL0275E_ R22 & HFC - 407C STYLE C (50 Hz.) WITH IPU II AND I/O BOARDS Standard, Glycol & Metric Models, Combined 380-415/5 MODELS ONLY...
  • Page 2 FORM 150.63-NM8 (1020) 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 installation, operation, maintenance or service, death to themselves and people at the site. individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, This document is intended for use by owner-authorized...
  • Page 3 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 4 FORM 150.63-NM8 (1020) TABLE OF CONTENTS PRODUCT IDENTIFICATION NUMBER (PIN) ....................10 REFRIGERANT FLOW DIAGRAM ......................11 SPECIFICATIONS ............................12 SECTION 1 - INSTALLATION ......................13 CONTROL WIRING .............................25 ELECTRICAL DATA ............................28 PHYSICAL DATA (ENGLISH) ........................34 DIMENSIONS AND CLEARANCES ......................36 WEIGHT DISTRIBUTION ..........................46 ISOLATOR SELECTIONS ...........................48 PRE-STARTUP CHECKLIST ........................53 INITIAL START-UP ............................54 SECTION 2 - UNIT CONTROLS .....................56...
  • Page 5 FORM 150.63-NM8 (1020) LIST OF TABLES TABLE 1 – FITTING EQUIVALENT LENGTHS ................17 TABLE 2 – REFRIGERANT PIPING CHARGES .................17 TABLE 3 – MISCELLANEOUS LIQUID LINE PRESSURE DROPS ..........17 TABLE 4 – REFRIGERANT LINE CONNECTIONS ..............18 TABLE 5 – REFRIGERANT LINE PRESSURE DROPS (ENGLISH) .........18 TABLE 6 –...
  • Page 6 FORM 150.63-NM8 (1020) LIST OF TABLES (CONT.) TABLE 31 – SUCTION TEMP. SENSOR TEMPERATURE/VOLTAGE/RESISTANCE CORRELATION ......................102 TABLE 32 – TROUBLESHOOTING ....................106 TABLE 33 – ISN RECEIVED DATA ....................110 TABLE 34 – ISN TRANSMITTED DATA ..................110 TABLE 35 – ISN OPERATIONAL AND FAULT CODES .............. 112 JOHNSON CONTROLS...
  • Page 7 FORM 150.63-NM8 (1020) LIST OF FIGURES FIG. 1 – REFRIGERANT FLOW DIAGRAM .................11 FIG. 2 – SINGLE POINT POWER SUPPLY WIRING ..............23 FIG. 3 – MULTI POINT POWER SUPPLY WIRING ..............23 FIG. 4 – SINGLE POINT POWER SUPPLY WIRING ..............24 FIG.
  • Page 8 FORM 150.63-NM8 (1020) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
  • Page 9 5 6 7 8 11 12 13 14 15 BASE PRODUCT TYPE NOMINAL CAPACITY UNIT DESIGNATOR REFRIGERANT VOLTAGE/STARTER DESIGN/DEVELOPMENT LEVEL : YORK : R-22 : High Efficiency : 200 / 3/ 60 :380-415/3/50 : Design Series A : Chiller : R-407C...
  • Page 10 FORM 150.63-NM8 (1020) PRODUCT IDENTIFICATION NUMBER (PIN) EXAMPLES: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 JOHNSON CONTROLS...
  • Page 11 FORM 150.63-NM8 (1020) REFRIGERANT FLOW DIAGRAM LD04284A FIG. 1 – REFRIGERANT FLOW DIAGRAM JOHNSON CONTROLS...
  • Page 12 SPECIFICATIONS GENERAL CONDENSER Coils – Fin and tube condenser coils of seamless, inter- The 53 - 457 kW YCUL0045E - 0275E Condensing Unit Models are shipped complete from the factory nally-enhanced, high-condensing-coefficient, corrosion ready for field installation. resistant copper tubes are arranged in staggered rows, mechanically expanded into aluminum fins.
  • Page 13 FORM 150.63-NM8 (1020) SECTION 1 - INSTALLATION To ensure warranty coverage, this The following pages outline detailed procedures to be followed to install and start-up the unit. equipment must be commissioned and serviced by an authorized John- HANDLING son Controls service mechanic or a qualified service person experienced These condensing units are shipped as completely as- in chiller installation.
  • Page 14 YORK Engineering Guide for the specific unit model. Sound blankets for the compressors and low sound fans Recommended clearances for units are given in DIMEN- are available.
  • Page 15 FORM 150.63-NM8 (1020) If separate evaporator blowers are used with respect to DISCHARGE AIR SENSOR each refrigerant system in the condensing unit, then two The discharge air sensor and associated connector air proving switches must be wired in series across CTB1 hardware is factory supplied but must be field installed.
  • Page 16 System piping should never exceed 40 PSI (276 kPa). Refrigerant vapor in the conform to the York DX piping guide form 050.40ES2 or liquid line will measurably reduce valve capacity and ASHRAE refrigeration handbook guidelines. All piping poor system performance can be expected.
  • Page 17 .8 oz./ft. (23 grams/30cm) 1-3/8" (35mm) 8.6 oz./ft. (244 grams/30cm) * Pressure drops or equivalent length values are approximate. If more precise value is desired, consult either the York DX Piping Guide (form 050.40-ES2) or ASHRAE Refrigerant Handbook. JOHNSON CONTROLS...
  • Page 18 INSTALLATION FORM 150.63-NM8 (1020) – TABLE 4 REFRIGERANT LINE CONNECTIONS YCUL REFRIGERANT LINE CONNECTIONS MODEL YCUL SUCTION LIQUID MODEL YCUL SUCTION LIQUID 0045 1-3/8" 7/8" 0161 2-1/8" 7/8" 0061 1-5/8" 7/8" 0171 2-1/8" 7/8" 0081 2-1/8" 7/8" 0185 2-1/8" 1-1/8" 0095 2-1/8"...
  • Page 19 FORM 150.63-NM8 (1020) TABLE 5 – REFRIGERANT LINE PRESSURE DROPS (ENGLISH) (CONT) SUCTION LINE LIQUID LINE VELOCITY MODEL COPPER PRES- COPPER PRES- SYSTEM NOMINAL @NOMI- NOMINAL NUMBER TYPE L SURE TYPE L SURE NUMBER TONS TONS YCUL00 INCHES DROP INCHES DROP CAPACITY UNLOADED...
  • Page 20 INSTALLATION FORM 150.63-NM8 (1020) – TABLE 6 REFRIGERANT LINE PRESSURE DROPS (METRIC) SUCTION LINE LIQUID LINE MODEL NOMI- COPPER PRES- VELOCITY COPPER PRES- SYSTEM NOMINAL NUMBER TYPE L SURE @NOMINAL TYPE L SURE NUMBER YCUL INCHES DROP CAPACITY INCHES DROP UNLOADED O.D.
  • Page 21 FORM 150.63-NM8 (1020) TABLE 6 – REFRIGERANT LINE PRESSURE DROPS (METRIC) (CONT.) SUCTION LINE LIQUID LINE VELOCITY MODEL COPPER PRES- COPPER PRES- SYSTEM NOMINAL @NOMI- NOMINAL NUMBER TYPE L SURE TYPE L SURE NUMBER YCUL INCHES DROP INCHES DROP CAPACITY UNLOADED O.D.
  • Page 22 6. Hot gas bypass lines are typically 7/8" for lines up to 40 feet and 1-1/8" for lines over 40 feet (12 meters) in length. The field connections sizes are 7/8" for the optional factory mounted hot gas bypass valve. 7. For more information, please refer to either the York DX Piping Application Guide or the ASHRAE Refrigeration Handbook.
  • Page 23 FORM 150.63-NM8 (1020) SINGLE POINT POWER SUPPLY WIRING – (0045 - 0275) Figure 2: Figure 1: Single Point Supply Connection – Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker (YCUL0016-0090) Power Panel Power Panel Power Panel Control Panel Control Panel Control Panel Terminal Block, Terminal Block,...
  • Page 24 INSTALLATION FORM 150.63-NM8 (1020) SINGLE POINT POWER SUPPLY WIRING – (0045 - 0275) Figure 4: Figure 4: Single Point Supply Connection – Terminal Block or Non-Fused Disconnect Switch to Individual System Circuit Breakers (YCAL0096-0130) Power Panel Power Panel Power Panel Control Panel Control Panel Control Panel...
  • Page 25 FORM 150.63-NM8 (1020) CONTROL WIRING AIR PROVING SWITCH AIR PROVING SWITCH SYS 1 ZONE T'STAT REMOTE START/STOP CONTACTS * SYS 2 ZONE T'STAT PWM INPUT PWM INPUT LOAD LIMIT INPUT LOAD LIMIT INPUT *YCUL0125 - YCUL0275 CTB1 – DISCHARGE AIR TEMPERATURE CONTROL CTB1 –...
  • Page 26 INSTALLATION FORM 150.63-NM8 (1020) CONTROL WIRING (YCUL0125 - YCUL0275) (YCUL0125 - YCUL0275) LD08663 – FIG. 7 CTB2 POWER PANEL FIELD WIRING GROUND LIQUID LINE SOLENOID VALVE 1 NEUTRAL SYSTEM 1 120VAC SIGNAL GROUND LIQUID LINE SOLENOID VALVE 1 NEUTRAL SYSTEM 2 (YCUL0125 - YCUL0275) 120VAC SIGNAL CTB3...
  • Page 27 FORM 150.63-NM8 (1020) FIELD SUPPLIED WIRING J6-5 & J6-8 DISCHARGE AIR QUABBIN 930421-2 J6-2 SHIELD SENSOR WITH OR EQUIVALENT MOUNTING BRACKET BLK (SIGNAL) BLK (SIGNAL) RED (+5 VDC) RED (+5 VDC) DRAIN (GND) DRAIN (GND) J6 PIN IDENTIFICATION LD13345a ON I/O LD13345 –...
  • Page 28 INSTALLATION FORM 150.63-NM8 (1020) ELECTRICAL DATA ELECTRICAL DATA – DUALPOINT POWER SUPPLY CONNECTIONS – YCUL0045E_ - YCUL0275E_ (see Fig. 3) (Two Field Provided Power Supply Circuits to the condensing unit. Field connections to Factory Provided Terminal Blocks per system.) TABLE 7 – DUAL POINT POWER SUPPLY CONNECTIONS SYSTEM #1 FIELD SUPPLIED WIRING SYSTEM #1 COMPRESSOR &...
  • Page 29 FORM 150.63-NM8 (1020) YCUL0045E_ - YCUL0275E_ DUAL POINT POWER SUPPLY CONNECTIONS (see Fig. 3) (Two Field Provided Power Supply Circuits to the condensing unit. Field connections to Factory Provided Terminal Blocks per system.) SYSTEM #2 FIELD SUPPLIED WIRING SYSTEM #2 COMPRESSOR & FAN INCOMING D.E.
  • Page 30 INSTALLATION FORM 150.63-NM8 (1020) ELECTRICAL DATA – SINGLE POINT POWER SUPPLY CONNECTIONS – YCUL0045E_ - YCUL0275E_ (One Field Provided Power Supply Circuit to the condensing unit. Field connections to Factory Provided Terminal Block (optional), Non-Fused Disconnect Switch (optional) or Circuit Breaker (optional).) TABLE 8 –...
  • Page 31 FORM 150.63-NM8 (1020) SYSTEM #1 COMPRESSOR & FAN SYSTEM #2 FIELD SUPPLIED WIRING COMPR. #1 COMPR. #2 COMPR. #3 FANS COMPR. #1 COMPR. #2 COMPR. #3 FANS RLA LRA RLA LRA RLA LRA QTY RLA LRA RLA LRA RLA LRA QTY (EA) (EA) 12.0...
  • Page 32 INSTALLATION FORM 150.63-NM8 (1020) ELECTRICAL NOTES NOTES: 1. Minimum Circuit Ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of the rated load amps for all other loads included in the circuit, per N.E.C. Article 430-24. If the Factory Mounted Control Transformer is provided, add the following to the system MCA values in the electrical tables: -17, add 2.5 amps;...
  • Page 33 FORM 150.63-NM8 (1020) ELECTRICAL DATA TABLE 9 – MICROPANEL POWER SUPPLY OVER CURRENT PROTECTION, UNIT VOLTAGE UNIT VOLTAGE CONTROL POWER NF DISC Sw SEE NOTE B NOTE A MODELS w/o 115-1-60/50 30 A / 240V CONTROL TRANS A. Minimum #14 AWG, 75°C, Copper Recommended B.
  • Page 34 INSTALLATION FORM 150.63-NM8 (1020) PHYSICAL DATA (ENGLISH) YCUL0045E_ - YCUL0275E_ TABLE 11 – PHYSICAL DATA (METRIC) Model Number YCUL 0045 0061 0081 0095 0121 0125 0145 General Unit Data Nominal kW, R-22 44.7 61.5 77.0 93.9 112.9 127.7 140.7 Nominal kW, R-407C 42.9 59.4 74.9...
  • Page 35 FORM 150.63-NM8 (1020) Model Number YCUL 0161 0171 0185 0211 0235 0255 0275 154.0 168.8 187.5 205.7 229.7 251.5 273.3 149.8 164.6 183.9 198.7 222.6 244.8 266.6 19.5/19.5 28.9/19.5 25.7/25.7 26.5/21.8 35.9/35.9 35.9/35.9 35.9/35.9 18.8/18.8 27.9/18.8 24.8/24.8 25.5/21.0 34.6/34.6 34.6/34.6 34.6/34.6 26.5/26.5 26.5/26.5 39.7/39.7 30.9/30.9 46.4/46.4 46.4/46.4 46.4/46.4 25.5/25.5 25.5/25.5 38.2/38.2 29.8/29.8 44.7/44.7 44.7/44.7 44.7/44.7 13/8...
  • Page 36 Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance. YORK’s unit controls will optimize operation without nuisance high-pressure safety cutouts; however, the system designer must consider potential performance degradation. Access to the unit control center assumes the unit is no higher than on spring isolators.
  • Page 37 FORM 150.63-NM8 (1020) POWER PANEL 1308 19 DIA. MOUNTING HOLES (TYP.) CONTROL PANEL ORIGIN 1993 TOP VIEW LIQUID 1737 STOP VALVE 1 5/8" O.D. SUCT. CONN. 7/8" O.D. LIQUID CONN. (2) 76 X 76 RIGGING HOLES (EACH SIDE) 2043 2670 MODEL YCUL 0045 0061...
  • Page 38 Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance. YORK’s unit controls will optimize operation without nuisance high-pressure safety cutouts; however, the system designer must consider potential performance degradation. Access to the unit control center assumes the unit is no higher than on spring isolators.
  • Page 39 FORM 150.63-NM8 (1020) POWER PANEL 1308 19 DIA. MOUNTING HOLES (TYP.) CONTROL PANEL ORIGIN 1866 TOP VIEW 2229 2 1/8" O.D. SUCT. CONN. LIQUID STOP VALVE 7/8" O.D. LIQUID CONN. (2) 76 X 76 RIGGING HOLES (EACH SIDE) MODEL YCUL 2043 0081 0095...
  • Page 40 Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance. YORK’s unit controls will optimize operation without nuisance high-pressure safety cutouts; however, the system designer must consider potential performance degradation. Access to the unit control center assumes the unit is no higher than on spring isolators.
  • Page 41 FORM 150.63-NM8 (1020) POWER PANEL 1308 19 DIA. MOUNTING HOLES (TYP.) CONTROL PANEL ORIGIN 1866 TOP VIEW 2229 2 1/8" O.D. SUCT. CONN. LIQUID STOP VALVE 7/8" O.D. LIQUID CONN. (2) 76 X 76 RIGGING HOLES (EACH SIDE) 2043 2670 ALUMINUM COIL COPPER COIL Center of Gravity (mm)
  • Page 42 Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance. YORK’s unit controls will optimize operation without nuisance high-pressure safety cutouts; however, the system designer must consider potential performance degradation. Access to the unit control center assumes the unit is no higher than on spring isolators.
  • Page 43 FORM 150.63-NM8 (1020) POWER PANEL 2045 19 DIA. MOUNTING 1270 HOLES (TYP.) CONTROL PANEL ORIGIN 2527 TOP VIEW SYS. 2 LIQ. 2282 STOP VALVE Sys. 2 SYS. 1 LIQ. CONN. 7/8" O.D. LIQ. CONN. SYS. 1 & 2 SUCT. CONNS. SYS.
  • Page 44 Site restrictions may compromise minimum clearances indicated below, resulting in unpredictable airflow patterns and possible diminished performance. YORK’s unit controls will optimize operation without nuisance high-pressure safety cutouts; however, the system designer must consider potential performance degradation. Access to the unit control center assumes the unit is no higher than on spring isolators.
  • Page 45 FORM 150.63-NM8 (1020) POWER PANEL 2311 19 DIA. MOUNTING 1270 HOLES (TYP.) CONTROL PANEL ORIGIN 2527 TOP VIEW 2473 SYS. 1 & 2 MODEL YCUL SUCT. CONNS. SYS. 1 & 2 LIQ. 0211 STOP VALVES 0235 SYS. 1 & 2 0255 LIQ.
  • Page 46 INSTALLATION FORM 150.63-NM8 (1020) WEIGHT DISTRIBUTION ALUMINUM FIN AND BLACK FIN COILS LD03736 ALUMINUM FIN COILS SI Units Aluminum Fin Coil Weight Distribution (kg) YCUL Total 0045 0061 0081 1088 0095 1109 0121 1265 0125 1791 0145 1814 0161 1840 0171 1866 0185...
  • Page 47 FORM 150.63-NM8 (1020) COPPER FIN COILS SI Units Copper Fin Coil Weight Distribution (kg) YCUL Total 0045 0061 1001 0081 1157 0095 1177 0121 1333 0125 1927 0145 1950 0161 1976 0171 2002 0185 2030 0211 2332 0235 2442 0255 2508 0275 2549...
  • Page 48 INSTALLATION FORM 150.63-NM8 (1020) ISOLATOR SELECTIONS ALUMINUM FIN AND BLACK FIN COILS 1" DEFLECTION ISOLATOR SELECTION - VMC TYPE 1” Isolator Selections, VMC Type CP-x-xx YCUL 0045 1-26 1-26 1-26 1-26 0061 1-26 1-26 1-26 1-26 0081 1-27 1-26 1-27 1-26 0095 1-27...
  • Page 49 FORM 150.63-NM8 (1020) ISOLATOR SELECTIONS COPPER FIN COILS 1" DEFLECTION ISOLATOR SELECTION - VMC TYPE 1” Isolator Selections, VMC Type CP-x-xx YCUL 0045 1-26 1-26 1-26 1-26 0061 1-26 1-26 1-26 1-26 0081 1-26 1-26 1-26 1-26 0095 1-27 1-27 1-27 1-27 0121...
  • Page 50 INSTALLATION FORM 150.63-NM8 (1020) DIMENSIONS ONE INCH DEFLECTION SPRING ISOLATORS CP Model Isolators 5/8" H" C" T" B" L" D" W" Mount Dimension Data (Inches) Type 7-3/4 6-1/2 4-3/4 5-5/8 10-1/2 9-1/4 7-3/4 9/16 RATED RATED MODEL NUMBER CAPACITY DEFLECTION COLOR CODE (LBS.) (IN)
  • Page 51 FORM 150.63-NM8 (1020) ELASTOMERIC ISOLATORS RD Model Isolators ELASTOMER Dimension Data (inches) Mount Type 5/16-18 UNC RD1-WR 3.13 1.75 1.25 2.38 0.34 0.19 1.25 X 3/4 RD2-WR 3.88 2.38 1.75 3.00 0.34 0.22 3/8-16 UNC X 1 1.75 RD3-WR 5.50 3.38 2.88 4.13...
  • Page 52 INSTALLATION FORM 150.63-NM8 (1020) DIMENSIONS Y2RS Model Isolators 1-1/8” 5/8” 2-3/4” 2-3/4” 3/8” GAP 3/4” TYP. (4) 3/4” 7/8” STOP & 8-3/8” OPER. HEIGHT MODEL Y2RSI-2D SEISMICALLY RESTRAINED VIBRATION ISOLATOR FOR 2" DEFLECTION ALLOWABLE G RAT- SEISMIC MOUNT RATED LOAD RATED DEFLEC- SPRING RATE SOLID LOAD (LBS) COLOR CODE...
  • Page 53 FORM 150.63-NM8 (1020) PRE-STARTUP CHECKLIST  8. Visually inspect wiring (power and control). JOB NAME: ______________________________ Wiring MUST meet N.E.C. and local codes. See Figures 3 & 4, pages 23 & 24. SALES ORDER #: _________________________  9. Check tightness of power wiring inside the power LOCATION: _____________________________ panel on both sides of the motor contactors and overloads.
  • Page 54 INSTALLATION FORM 150.63-NM8 (1020) This unit uses scroll compressors TABLE 12 – SETPOINTS ENTRY LIST which can only operate in one direc- OPTIONS Display Language tion. Failure to observe this will lead Sys 1 Switch to compressor failure. Sys 2 Switch * Ambient Control Local/Remote Mode ...
  • Page 55 FORM 150.63-NM8 (1020) after steady state operation of the chiller has been estab-  3. Allow the compressor to run a short time, being lished, the leaving water temperature has been pulled down ready to stop it immediately if any unusual noise to the required leaving water temperature, and the unit is or adverse conditions develop.
  • Page 56 SECTION 2 - UNIT CONTROLS YORK MILLENNIUM CONTROL CENTER 00065VIP INTRODUCTION The YORK MicroComputer Control Center is a micro- IPU2 & I/O BOARDS processor based control system designed to provide the entire control for the liquid chiller. The control logic...
  • Page 57 FORM 150.63-NM8 (1020) The Microprocessor Board energizes relays on-board KEYPAD the I/O Board to output 120VAC to motor contactors, solenoid valves, etc. to control system operation. It The 12 button non-tactile keypad allows the user to re- trieve vitals system parameters such as system pressures, also energizes solid state relays to output 24VAC to the EEVs if installed.
  • Page 58 UNIT CONTROLS FORM 150.63-NM8 (1020) “STATUS” KEY 00066VIP The following messages are displayed when the “Status” S Y S S Y S S W I T C H O F F key is pressed. Following each displayed message is an S Y S S Y S S W I T C H...
  • Page 59 FORM 150.63-NM8 (1020) S Y S 1 Z O N E T H E R M O F F S Y S S U C T L I M I T I N G S Y S S U C T L I M I T I N G S Y S 2 Z O N E T H E R M O F F...
  • Page 60 UNIT CONTROLS FORM 150.63-NM8 (1020) S Y S P U M P I N G D O W N S Y S L O W S U C T P R E S S S Y S P U M P I N G D O W N S Y S L O W...
  • Page 61 FORM 150.63-NM8 (1020) The internal motor protector opens at 185°F - 248°F UNIT SAFETIES: (85°C - 120°C) and auto resets. The mechanical HP switch opens at 405 PSIG +/- 10 PSIG (27.92 barg +/- .69 Unit safeties are faults that cause all running compres- barg) and closes at 330 PSIG +/- 25 PSIG (22.75 barg sors to be shut down.
  • Page 62 UNIT CONTROLS FORM 150.63-NM8 (1020) L O W B A T T E R Y C H E C K P R O G / S E T P / O P T N The Low Battery Warning can only occur at unit power-up.
  • Page 63 FORM 150.63-NM8 (1020) STATUS KEY MESSAGES TABLE 13 – STATUS KEY MESSAGES STATUS KEY MESSAGES General Messages Fault Messages System Safeties Unit Safeties Unit Switch Off Shutdown Remote Controlled System X High Disch Pressure Low Ambient Temp Shutdown Daily Schedule System X Low Suct Pressure 115VAC Undervoltage Shutdown...
  • Page 64 UNIT CONTROLS FORM 150.63-NM8 (1020) DISPLAY/PRINT KEYS 00067VIP the following list of operating data screens are view- The Display/Print keys allow the user to retrieve system able under the Oper Data key in the order that they are and unit information that is useful for monitoring chiller displayed.
  • Page 65 FORM 150.63-NM8 (1020) S Y S 7 2 . 1 P S I G L O A D T I M E R S E C = 2 2 7 . 0 P S I G U N L O A D T I M E R S E C These displays show suction and discharge pressures...
  • Page 66 EEV pilot solenoid and hot gas solenoid are being turned on by the I/O Board. Please ISN – York Talk via ISN allows remote load limiting note that hot gas in not available for system 2, so there and temperature reset through an ISN system.
  • Page 67 FORM 150.63-NM8 (1020) OPER DATA QUICK REFERENCE LIST The following table is a quick reference list for information available under the OPER DATA key. TABLE 14 – OPERATION DATA Oper Data Key **Discharge Air Temperature Ambient Air Temperature System 1 Suction and Discharge Pressure System 1 Suction Temperature System 2 Suction and Discharge Pressure System 2 Suction Temperature...
  • Page 68 A sample Operating LIQUID LINE SOLENOID Data printout is shown below. (Note: Not all values are CONDENSER FAN STAGES printed for all models.) DAILY SCHEDULE YORK INTERNATIONAL CORPORATION S M T* W T F S *=HOLIDAY MILLENNIUM CONDENSING UNIT SUN START=00:00AM STOP=00:00AM...
  • Page 69 C . M M C . 0 4 . 0 1 difference is that the Daily Schedule is not printed in the history print and the header will be as follows. YORK INTERNATIONAL CORPORATION MILLENNIUM LIQUID CHILLER SAFETY SHUTDOWN NUMBER 1...
  • Page 70 UNIT CONTROLS FORM 150.63-NM8 (1020) The UP and DOWN arrows are used to scroll forward M A N U A L O V E R R I D E M O D E and backward through the history buffer to display the X X X X X X X X X shutdown conditions stored at the instant the fault oc- curred.
  • Page 71 FORM 150.63-NM8 (1020) S E T P O I N T X X X . X ° F S Y S R U N T I M E R A N G E + / - ° F X X - X X - X X - X X D - H - M - S Displays the programmed Setpoint and Range, if the Displays the system run time when the fault occurred.
  • Page 72 UNIT CONTROLS FORM 150.63-NM8 (1020) “ENTRY” KEYS 00068VIP The Entry Keys allow the user to view, change programmed The UP and DOWN arrow keys are also used for pro- values. The ENTRY keys consist of an UP ARROW key, gramming the control panel such as changing numerical DOWN ARROW key, and an ENTER/ADV key.
  • Page 73 FORM 150.63-NM8 (1020) “SETPOINTS” KEYS 00069VIP Programming of the cooling setpoints, daily schedule, Following are the four possible messages that can be and safeties is accomplished by using the keys located displayed after pressing the COOLING SETPOINT key, under the SETPOINTS section. indicating the cooling mode: The three keys involved are labeled COOLING SET- L O C A L...
  • Page 74 UNIT CONTROLS FORM 150.63-NM8 (1020) If the unit was programmed for Suction Pressure control, R E M O T E D I S C H A R G E the following message would be displayed instead of the A I R T E M P C O N T R O L previous message.
  • Page 75 FORM 150.63-NM8 (1020) Pressing the COOLING SETPOINTS again will bring Whenever the daily schedule is changed up the display that allows the Maximum EMS-PWM for Monday, all the other days will Temperature Reset to be programmed. This message is change to the new Monday schedule. shown below.
  • Page 76 UNIT CONTROLS FORM 150.63-NM8 (1020) TABLE 15 – COOLING SETPOINTS PROGRAMMABLE LIMITS AND DEFAULTS SETPOINT VALUE LOW LIMIT HIGH LIMIT DEFAULT 45.0 °F 70.0°F 44.0°F Discharge Air Temp. Setpoint 7.2°C 21.1°C 12.7°C 3.0°F 10.0°F 5.0°F Discharge Air Temp. Range 1.7°C 5.6°C 2.8°C 60 PSIG...
  • Page 77 FORM 150.63-NM8 (1020) This MUST be programmed correctly F A N C O N T R O L to assure proper condensing unit op- P R E S S U R E = X X X P S I G eration.
  • Page 78 UNIT CONTROLS FORM 150.63-NM8 (1020) • Multiply the sum by 1.25 460VAC SYSTEM TRIP VOLTS • Divide by 225A For individual system high current trip programming • The resulting voltage is the value that should be pro- on 460VAC chillers: grammed •...
  • Page 79 FORM 150.63-NM8 (1020) OPER DATA QUICK REFERENCE LIST TABLE 17 – SETPOINTS QUICK REFERENCE LIST SETPOINTS KEYS Cooling Setpoints Key Schedule/ Program Mode (press key to adv.) Advance Day Key (press enter to adv.) Local/Remote Discharge Mon. – Sun. Discharge Air or Suction Pressure &...
  • Page 80 UNIT CONTROLS FORM 150.63-NM8 (1020) “UNIT” KEYS 00070VIP OPTIONS KEY There are many programmable options under the OP- S Y S S W I T C H O F F TIONS key. The OPTIONS key is used to scroll through S Y S S W I T C H the list of options by repeatedly pressing the OPTIONS...
  • Page 81 FORM 150.63-NM8 (1020) OPTION 3 – AMBIENT CONTROL TYPE: OPTION 6 – DISPLAY UNITS: (YCUL0045-0255 ONLY) D I S P L A Y U N I T S I M P E R I A L A M B I E N T C O N T R O L S T A N D A R D This mode displays system operating values in Imperial...
  • Page 82 UNIT CONTROLS FORM 150.63-NM8 (1020) This should only be enabled on European units with soft F A N C O N T R O L start on 2 compressors. This feature modifies the com- A M B I E N T &...
  • Page 83 FORM 150.63-NM8 (1020) Also see the UNIT KEYS PROGRAMMING QUICK S O F T S T A R T REFERENCE LIST in Table 18, Page 84. D I S A B L E D CLOCK This MUST be selected on all chillers without the soft start option.
  • Page 84 UNIT CONTROLS FORM 150.63-NM8 (1020) TABLE 18 – UNIT KEYS PROGRAMMING QUICK REFERENCE LIST Unit Type (YCUL0045 - 0275 ONLY) (YCUL0016 - 0090 ONLY) Unit Control Mode Suction Pressure Discharge Air Temp System Manual or Automatic Lead/Lag Control (2 System Discharge Air Temp Control Only (YCUL0045 - 0275 ONLY) (YCUL0016 - 0090 ONLY) Unit Type...
  • Page 85 FORM 150.63-NM8 (1020) UNIT OPERATION CAPACITY CONTROL DISCHARGE AIR TEMPERATURE CONTROL To initiate the start sequence of the unit, all run permis- The setpoint in Discharge Air Temperature Control is the sive inputs must be satisfied (air proving/remote start/ temperature the condensing unit will control to within +/- stop switch), and no unit or system faults exist.
  • Page 86 UNIT CONTROLS FORM 150.63-NM8 (1020) TABLE 19 – DISCHARGE AIR TEMPERATURE CONTROL FOR 5 AND 6 COMPRESSORS (7 AND 8 STEPS) LEAD SYSTEM LAG SYSTEM STEP COMP 1 COMP 2 COMP 3 COMP 1 COMP 2 COMP 3 ON+HG SEE NOTE 1 SEE NOTE 2 SEE NOTE 3 TABLE 20 –...
  • Page 87 FORM 150.63-NM8 (1020) TABLE 21 – DISCHARGE AIR TEMPERATURE CONTROL FOR 3 COMPRESSORS (SINGLE SYSTEM) *STEP COMP 1 COMP 2 COMP 3 ON+HG SEE NOTE 1 TABLE 22 – DISCHARGE AIR TEMPERATURE CONTROL FOR 2 COMPRESSORS (SINGLE SYSTEM) *STEP COMP 1 COMP 2 ON+HG SEE NOTE 1...
  • Page 88 UNIT CONTROLS FORM 150.63-NM8 (1020) If the suction pressure falls below the Setpoint High SUCTION PRESSURE CONTROL Limit and greater than the Setpoint Low Limit, loading The setpoint in Suction Pressure Control is the suction and unloading do not occur. This area of control is called pressures each individual system on the condensing unit the control range.
  • Page 89 FORM 150.63-NM8 (1020) SYSTEM LEAD/LAG ANTI-COINCIDENCE TIMER (Discharge Air Temp Control Only) This timer is not present on single-system units. Two Lead/lag between systems may be selected to help timing controls are present in software to assure com- equalize average run hours between systems on chillers pressors within a circuit or between systems, do not start with 2 refrigerant systems.
  • Page 90 UNIT CONTROLS FORM 150.63-NM8 (1020) Program LOW AMBIENT CONDENSER FAN CONTROL (YCUL0045 – YCUL0275) The superheat setpoint is programmable under the Pro- gram key. Superheat may be programmed for 10°F to For unit operation below 25°F (-3.9°C) a low ambient 15°F, with 12°F as the default.
  • Page 91 FORM 150.63-NM8 (1020) CONDENSER FAN CONTROL - YCUL0045 – YCUL0275 TABLE 23 – YCUL0045 – YCUL0275 CONDENSER FAN CONTROL USING OUTDOOR AMBIENT TEMPERATURE AND DISCHARGE PRESSURE (DISCHARGE PRESSURE CONTROLS WILL NOT FUNCTION UNLESS THE OPTIONAL DISCHARGE PRESSURE TRANSDUCER IS INSTALLED) I/O BOARD CONTACTOR FAN #...
  • Page 92 UNIT CONTROLS FORM 150.63-NM8 (1020) CONDENSER FAN CONTROL - YCUL0045 – YCUL0275 TABLE 24 – YCUL0045 - YCUL0275 LOW AMBIENT CONDENSER FAN CONTROL – DISCHARGE PRESSURE CONTROL I/O BOARD FAN # CONTACTOR OUTPUT FAN STAGE SYS 1 SYS 2 SYS 1 SYS 2 SYS 1 SYS 2...
  • Page 93 FORM 150.63-NM8 (1020) Simultaneous operation of Load Lim- LOAD LIMITING iting and EMS-PWM Temperature Load Limiting is a feature that prevents the unit from Reset (described on following pages) loading beyond the desired value. 2 and 4 compressor cannot occur. units can be load limited to 50%.
  • Page 94 UNIT CONTROLS FORM 150.63-NM8 (1020) The temperature reset is only usable EMS-PWM REMOTE TEMPERATURE RESET with the control mode set to discharge EMS-PWM Remote Temperature Reset is a value that air temperature. It is not available with resets the Chilled Liquid Setpoint based on a PWM the control mode programmed for suc- input (timed contact closure) to the I/O Board.
  • Page 95 The coil of any added relay used for re- °reset = 8mA x 10°F = 5°F reset set must be suppressed to prevent pos- sible component damage. Use YORK setpoint = 45°F + 5°F = 50°F P/N 031-00808-000 suppres sor.
  • Page 96 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) SECTION 3 - SERVICE AND TROUBLESHOOTING sion valve type, and start/hour counters to be viewed/ CLEARING HISTORY BUFFERS modified. The ENTER/ADV key is used to advance The history buffers may be cleared by pressing the HIS- through the outputs.
  • Page 97 FORM 150.63-NM8 (1020) AMBIENT AIR TEMP. SERVICE MODE – CHILLER CONFIGURATION DISCHARGE AIR TEMP After the Outputs are displayed, the next group of SYS 2 *SUCTION PRESSURE displays relate to chiller configuration and start/hour counters. Data logging, soft start, refrigerant type, and SYS 2 SPARE expansion valve type all must be programmed to match SYS 2 **DISCH PRESSURE...
  • Page 98 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) TABLE 28 – I/O BOARD DIGITAL OUTPUTS TABLE 26 – I/O BOARD DIGITAL INPUTS J13-1 30VDC UNREGULATED SUPPLY TB7-2 SYS 1 COMPRESSOR 1 J13-2 UNIT ON/OFF SWITCH SYS 1 LIQUID LINE SOLENOID VALVE OR EEV TB7-3 PWM TEMP RESET OR LOAD LIMIT STAGE 2 PILOT SOLENOID...
  • Page 99 FORM 150.63-NM8 (1020) I/O BOARD BOARD TB10 LD12721 FIG. 15 – I/O BOARD LAYOUT JOHNSON CONTROLS...
  • Page 100 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) CHECKING INPUTS AND OUTPUTS – TABLE 29 OUTDOOR AIR SENSOR TEMPERATURE/VOLTAGE/ DIGITAL INPUTS RESISTANCE CORRELATION TEMP °F VOLTAGE RESISTANCE TEMP C° Refer to the unit wiring diagram. All digital inputs are 85398 connected to J13 of the I/O Board. The term “digital” 72950 refers to two states –...
  • Page 101 FORM 150.63-NM8 (1020) TABLE 30 – DISCHARGE AIR TEMP. SENSOR DISCHARGE AIR TEMPERATURE SENSOR TEMPERATURE/VOLTAGE/ RESISTANCE CORRELATION J6-8 = +5 VDC regulated supply to sensor. J6-4 = VDC input signal to the I/O Board. See Table 30 for voltage readings that correspond to specific discharge temperatures.
  • Page 102 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) Suction Temperature Sensor - System 1 TABLE 31 – SUCTION TEMP. SENSOR TEMPERATURE/VOLTAGE/ RESISTANCE CORRELATION J8-5 = +5 VDC regulated supply to sensor. J8-8 = VDC input signal to the I/O Board. See TEMP °F VOLTAGE RESISTANCE TEMP °C...
  • Page 103 FORM 150.63-NM8 (1020) ANALOG INPUTS – Pressure V = (Pressure in PSIG x .01) + .5 Refer to the unit wiring diagram. Pressure inputs are connected to the I/O Board on plugs J4 and J7. These V = (Pressure in BARG x .145) + .5 analog inputs represent varying dc signals correspond- ing to varying pressures.
  • Page 104 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) The suction transducers have a range from 0 to 200 DIGITAL OUTPUTS PSIG (13.79 BARG). The output will be linear from Refer to the unit wiring diagram and TB7 & TB10 on .5VDC to 4.5VDC over the 200 PSIG (13.79 BARG) Fig.
  • Page 105 The part number for the printer that is packaged specifi- key or “HISTORY” key. cally for YORK is P/N 950915576. The cable to connect the printer can either be locally assembled from the parts listed, or ordered directly from WEIGH-TRONIX under part number 287-040018.
  • Page 106 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) TROUBLESHOOTING TABLE 32 – TROUBLESHOOTING PROBLEM CAUSE SOLUTION No display on panel. 1. No 115VAC to 1T. 1a. Check wiring and fuse Unit will not operate. b. Check wiring emergency stop contacts 5 to L of CTB2 Terminal Block.
  • Page 107 FORM 150.63-NM8 (1020) TROUBLESHOOTING (CONT’D) PROBLEM CAUSE SOLUTION “LOW SUCTION PRESSURE” 4. TXV defective. 4. Replace TXV. FAULT (CONT’D) 5. Reduced flow of air through 5. Check CFM the evaporator coil. 6. Defective suction pressure 6. Replace transducer/low transducer/low pressure pressure switch or faulty switch or wiring.
  • Page 108 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) TROUBLESHOOTING (CONT’D) PROBLEM CAUSE SOLUTION COMPRESSOR(S) WON’T 1. Demand not great enough. 1. No problem. Consult START “Installation” Manual to aid in understanding compres- sor operation and capacity control. 2. Defective discharge air 2. Compare the display with a temperature sensor.
  • Page 109 Note: at shutdown, the oil level can ON-BOARD BATTERY BACK-UP fall to the bottom limit of the oil sight glass. Use YORK “F” oil when adding oil. U5 (031-02565-000) on the IPU2 Board is the Real...
  • Page 110 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) ISN CONTROL RECEIVED DATA (CONTROL DATA) TABLE 34 – ISN TRANSMITTED DATA The Middle Market receives 8 data values from the TYPE DATA ISN. The first 4 are analog values and the last 4 are Analog Leaving Chilled Liquid Temp digital values.
  • Page 111 FORM 150.63-NM8 (1020) TABLE 34 – ISN TRANSMITTED DATA (CONT’D) TYPE DATA TYPE DATA Analog Anti-Recycle Time (Programmed) Digital SYS 2 Comp 3 Run Analog Leaving Chilled Liquid Temp Cutout Digital Chilled Liq. Type (0=Water, Analog Low Ambient Temp Cutout 1=Glycol) Analog ––...
  • Page 112 SERVICE AND TROUBLESHOOTING FORM 150.63-NM8 (1020) TABLE 35 – ISN OPERATIONAL AND FAULT CODES P56/58 OPERATIONAL CODE P57/59 FAULT CODE NO ABNORMAL CONDITION NO FAULT UNIT SWITCH OFF VAC UNDER VOLTAGE SYSTEM SWITCH OFF LOW AMBIENT TEMPERATURE LOCK-OUT HIGH AMBIENT TEMPERATURE UNIT FAULT LOW LEAVING CHILLED LIQUID TEMP SYSTEM FAULT...
  • Page 113 FORM 150.63-NM8 (1020) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
  • Page 114 WIRING DIAGRAMS FORM 150.63-NM8 (1020) SECTION 4 - WIRING DIAGRAMS ELEMENTARY DIAGRAM YCUL0045E_ – YCUL0095E_ FIG. 18 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT – YCUL0045E_ - YCUL0095E_ JOHNSON CONTROLS...
  • Page 115 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 116 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0045E_ – YCUL0095E_ FIG. 19 – ELEMENTARY DIAGRAM, POWER CIRCUIT – YCUL0045E_ - YCUL0095E_ JOHNSON CONTROLS...
  • Page 117 FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0045E_ – YCUL0095E_ FIG. 20 – ELEMENTARY DIAGRAM, MIDDLE MARKET – YCUL0045E_ - YCUL0095E_ JOHNSON CONTROLS...
  • Page 118 WIRING DIAGRAMS FORM 150.63-NM8 (1020) CONNECTION DIAGRAM YCUL0045E_ – YCUL0095E_ FIG. 21 – CONNECTION DIAGRAM, MIDDLE MARKET – YCUL0045E_ - YCUL0095E_ JOHNSON CONTROLS...
  • Page 119 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 120 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0121E_ FIG. 22 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT - YCUL0121E_ JOHNSON CONTROLS...
  • Page 121 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 122 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0121E_ FIG. 23 – ELEMENTARY DIAGRAM, POWER CIRCUIT - YCUL0121E_ JOHNSON CONTROLS...
  • Page 123 FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0121E_ FIG. 24 – ELEMENTARY DIAGRAM, MIDDLE MARKET - YCUL0121E_ JOHNSON CONTROLS...
  • Page 124 WIRING DIAGRAMS FORM 150.63-NM8 (1020) CONNECTION DIAGRAM YCUL0121E_ FIG. 25 – CONNECTION DIAGRAM, MIDDLE MARKET - YCUL0121E_ JOHNSON CONTROLS...
  • Page 125 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 126 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL00125E_ – YCUL0185E_ FIG. 26 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT – YCUL0125E_ - YCUL0185E_ JOHNSON CONTROLS...
  • Page 127 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 128 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL00125E_ – YCUL0185E_ FIG. 27 – ELEMENTARY DIAGRAM, POWER CIRCUIT – YCUL0125E_ - YCUL0185E_ JOHNSON CONTROLS...
  • Page 129 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 130 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL00125E_ – YCUL0185E_ FIG. 28 – ELEMENTARY DIAGRAM, MIDDLE MARKET – YCUL0125E_ - YCUL0185E_ JOHNSON CONTROLS...
  • Page 131 FORM 150.63-NM8 (1020) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
  • Page 132 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL00125E_ – YCUL0185E_ FIG. 29 – CONNECTION DIAGRAM, MIDDLE MARKET – YCUL0125E_ - YCUL0185E_ JOHNSON CONTROLS...
  • Page 133 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 134 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0211E_ – YCUL0275E_ FIG. 30 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT – YCUL0211E_ - YCUL0275E_ JOHNSON CONTROLS...
  • Page 135 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 136 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0211E_ – YCUL0275E_ FIG. 31 – ELEMENTARY DIAGRAM, POWER CIRCUIT – YCUL0211E_ - YCUL0275E_ JOHNSON CONTROLS...
  • Page 137 FORM 150.63-NM8 (1020) JOHNSON CONTROLS...
  • Page 138 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0211E_ – YCUL0275E_ FIG. 32 – ELEMENTARY DIAGRAM, MIDDLE MARKET – YCUL0211E_ - YCUL0275E_ JOHNSON CONTROLS...
  • Page 139 FORM 150.63-NM8 (1020) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...
  • Page 140 WIRING DIAGRAMS FORM 150.63-NM8 (1020) ELEMENTARY DIAGRAM YCUL0211E_ – YCUL0275E_ FIG. 33 – CONNECTION DIAGRAM, MIDDLE MARKET – YCUL0211E_ - YCUL0275E_ JOHNSON CONTROLS...
  • Page 142 NOTES...
  • Page 143 NOTES...
  • Page 144 5000 Renaissance Drive, New Freedom, Pennsylvania USA 17349 1-800-524-1330 Subject to change without notice. Printed in USA Copyright © by Johnson Controls 2020 www.johnsoncontrols.com ALL RIGHTS RESERVED Form 150.63-NM8 (1020) Issue Date: October 20, 2020 Supersedes: 150.63-NM8 (209)