York YCUL0045 User Manual Download

Page: 1 / 168

Standard, Glycol & Metric Models, Combined

380-3-50

MODEL ONLY

INSTALLATION, OPERATION, MAINTENANCE

AIR-COOLED CONDENSING UNITS

HERMETIC SCROLL

Supersedes: 150.63-NM6 (308)

Form 150.63-NM6 (1020)

29224(R)A

YCUL0045 – YCUL0275 EPROM (031-02050-001 MICROBOARD)

031-02049-001

035-19322-000

YCUL0045 - YCUL0275

R22 & HFC - 407C

STYLE C

(50 Hz.)

Summary of Contents for YCUL0045

Page 1: ...INSTALLATION OPERATION MAINTENANCE AIR COOLED CONDENSING UNITS HERMETIC SCROLL Supersedes 150 63 NM6 308 Form 150 63 NM6 1020 29224 R A YCUL0045 YCUL0275 EPROM 031 02050 001 MICROBOARD 031 02049 001...

Page 2: ...ocument and any referenced materials This in dividual shall also be familiar with and comply with all applicable industry and governmental standards and regulations pertaining to the task in question...

Page 3: ...g any work on the chiller REVISION NOTES Revisions made to this document are indicated in the following table These revisions are to technical information and any other changes in spelling grammar or...

Page 4: ...4 ISOLATOR SELECTIONS 67 INSTALLATION AND ADJUSTING TYPE CP ISOLATOR 72 AEQM SPRING FLEX ISOLATOR 74 PRE STARTUP CHECKLIST 76 INITIAL STARTUP 77 SECTION 2 UNIT CONTROLS 80 STATUS KEY 82 DISPLAY PRINT...

Page 5: ...Y MESSAGES 87 17 OPERATOR DATA QUICK REFERENCE LIST 91 18 COOLING SETPOINTS PROGRAMMABLE LIMITS DEFAULTS 100 19 PROGRAM KEY LIMITS DEFAULTS 102 20 SETPOINTS KEY QUICK REFERENCE LIST 103 21 UNIT KEYS Q...

Page 6: ...DISCHARGE AIR TEMP SENSOR TEMPERATURE VOLTAGE RESISTANCE CORRELATION 126 36 SUCTION TEMP SENSOR TEMPERATURE VOLTAGE RESISTANCE CORRELATION 127 37 KEYPAD PIN ASSIGNMENT MATRIX 130 38 TROUBLESHOOTING C...

Page 7: ...CONNECTIONS OPTIONAL REMOTE TEMPERATURE RESET BOARD 120 19 MICROBOARD LAYOUT 124 20 MICROBOARD RELAY CONTACT ARCHITECTURE 129 21 PRINTER TO MICROBOARD ELECTRICAL CONNECTIONS 131 22 ELEMENTARY DIAGRAM...

Page 8: ...S CON T 34 ELEMENTARY DIAGRAM CONTROL CIRCUIT YCUL0211 YCUL0275 160 35 ELEMENTARY DIAGRAM POWER CIRCUIT YCUL0211 YCUL0275 162 36 ELEMENTARY DIAGRAM MIDDLE MARKET YCUL0211 YCUL0275 164 37 CONNECTION DI...

Page 9: ...380 415 3 50 575 3 60 Across the Line Even Number 60 HZ Nominal Tons Odd Number 50 HZ Nominal kW YCUL0275EC 50XCA BASIC MODEL NUMBER YORK Chiller Air Cooled Condensing Unit Scroll 1 2 3 4 5 6 7 8 9 10...

Page 10: ...ed on the first 14 characters only ASME Pressure Vessel Code 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 X X X X C 1 X B 2 P 3 X X 4 A 5 6 X 7 X 8 B L 1 S N 16 17 18 19 20 21 22 23 24 25 26 27...

Page 11: ...RE TRANSDUCER LIQUID LINE SERVICE VALVE LIQUID LINE SOLENOID VALVE TXV SIGHT GLASS MOISTURE INDICATOR SOLENOID OPERATED HOT GAS BYPASS VALVE YCUL REFRIGERANT FLOW DIAGRAM NOTE YCUL0125 0275 HAVE TWO R...

Page 12: ...nced high condensing coefficient corrosion resistant copper tubes are arranged in staggered rows mechanically expanded into aluminum fins Integral subcooling is included The design working pressure of...

Page 13: ...JOHNSON CONTROLS 13 FORM 150 63 NM6 1020 This page intentionally left blank...

Page 14: ...ne solenoid sight glass refrigerant discharge return air temperature sensor if used and refrigerant piping to the air handling unit Care should be taken to avoid damage due to rough handling The unit...

Page 15: ...trength to safely support the entire weight of the unit and service personnel Care must be taken not to damage the roof during installation If the roof is bonded consult the building contractor or arc...

Page 16: ...t circuit when the supply air blower is not operating If separate evaporator blowers are used with respect to each refrigerant system in the condensing unit then two air proving must be wired in serie...

Page 17: ...LACK OF OIL RETURN Filter driers and sight glasses are shipped loose for field installation on each refrigerant circuit Field refrigerant piping can be connected to the condensing unit All expansion...

Page 18: ...ing charge for the condensing unit evaporator coil and refrigerant piping must be weighed in after all refrigerant piping is installed leak checked and evacuated 70 of the calculated charge must be ad...

Page 19: ...8 1 2 1890 7 8 3 8 2 21 1 5 8 4 7 3360 10 3 4 8 4 5 2 1 8 1 2 1890 7 8 3 8 0161 1 27 1 5 8 7 4 4320 13 7 8 6 1 2 1 8 1 9 2430 1 1 8 1 7 2 27 1 5 8 7 4 4320 13 7 8 6 1 2 1 8 1 9 2430 1 1 8 1 7 0171 1 3...

Page 20: ...d 0211 1 40 2 1 8 3 9 3600 13 1 1 8 3 6 5 2 5 8 1 4 2400 1 3 8 1 4 2 31 5 2 1 8 2 4 2790 10 7 8 7 9 5 2 5 8 9 1860 1 1 8 2 2 0235 1 39 2 1 8 3 7 3510 13 1 1 8 3 4 5 2 5 8 1 3 2340 1 3 8 1 3 2 39 2 1 8...

Page 21: ...7 8 42 1 2 1 8 13 0 12 3 1 1 8 11 7 0095 1 109 2 1 8 16 5 14 2 53 7 8 54 5 5 2 5 8 4 8 9 4 1 1 8 15 2 0121 1 137 2 1 8 25 5 17 8 46 1 1 8 23 4 5 2 5 8 9 0 11 9 1 3 8 9 0 0125 1 74 1 5 8 32 4 17 1 35 3...

Page 22: ...oad 0211 1 141 2 1 8 26 9 18 3 46 1 1 8 24 8 5 2 5 8 9 7 12 2 1 3 8 9 7 2 109 5 2 1 8 16 5 14 2 35 7 8 54 5 5 2 5 8 6 2 9 4 1 1 8 15 2 0235 1 137 2 1 8 25 5 17 8 46 1 1 8 23 4 5 2 5 8 9 0 11 9 1 3 8 9...

Page 23: ...measurably reduce valve capacity and poor system performance will result In addition pressure loss for strainers filter driers sole noid valves and isolation valve or fittings are not included in this...

Page 24: ...ician should verify that NO LETHAL VOLTAGES are present inside the panel AFTER disconnecting power PRIOR to working on equipment Installation Circuit 1 Terminal Block 1 Circuit 2 Terminal Block 2 0046...

Page 25: ...t power panel To pre vent serious injury or death the technician should verify that NO LETHAL VOLTAGES are present inside the panel AFTER disconnecting power PRIOR to working on equipment Terminal Blo...

Page 26: ...he unit power panel To pre vent serious injury or death the technician should verify that NO LETHAL VOLTAGES are present inside the panel AFTER disconnecting power PRIOR to working on equipment Termin...

Page 27: ...el AFTER disconnecting power PRIOR to working on equipment CONTROL WIRING LD04288 FIG 5 CTB1 FIELD CONTROL WIRING CTB1 LOCATED BELOW MICROPROCESSOR BOARD LD04376 YCUL0125 YCUL0275 CTB1 DISCHARGE AIR T...

Page 28: ...connecting power PRIOR to working on equipment FIG 7 CTB3 POWER PANEL FIELD WIRING CONTROL WIRING LD08663 GROUND NEUTRAL 120VAC SIGNAL 120 2 GRD GRD 2 220 GROUND NEUTRAL 120VAC SIGNAL CTB3 LIQUID LINE...

Page 29: ...ARE INCLUDED SUCTION TEMP SENSOR SYS 1 RED BLK 12 11 11 7 6 6 2 1 1 7 12 2 8 13 3 RED SIGNAL BLK 5VDC DRAIN GND RED BLK FACTORY SUPPLIED CABLE 10 FT SYSTEM 1 SYSTEM 2 YCUL0046 YCUL0090 SUCTION TEMP SE...

Page 30: ...38 Installation SYSTEM 1 FIELD SUPPLIED WIRING SYSTEM 1 COMPRESSOR FAN MODEL YCUL VOLT HZ MCA1 MIN N F DISC SW2 D E FUSE CKT BKR 5 INCOMING LUGS WIRE RANGE6 COMPR 1 COMPR 2 COMPR 3 FANS MIN3 MAX4 MIN...

Page 31: ...JOHNSON CONTROLS 31 FORM 150 63 NM6 1020 1 This page intentionally left blank...

Page 32: ...KT BKR 5 INCOMING LUGS WIRE RANGE6 COMPR 1 COMPR 2 COMPR 3 FANS MIN3 MAX4 MIN MAX RLA LRA RLA LRA RLA LRA QTY FLA EA 0125 380 415 50 46 60 50 60 50 60 10 1 16 6 127 16 6 127 2 4 0 0145 380 415 50 53 6...

Page 33: ...0 50 60 10 1 16 6 127 16 6 127 2 4 0 46 60 50 60 50 60 10 1 16 6 127 16 6 127 2 4 0 53 60 60 70 60 70 10 1 19 9 167 19 9 167 2 4 0 53 60 60 70 60 70 10 1 19 9 167 19 9 167 2 4 0 62 100 70 80 70 80 10...

Page 34: ...COMPRESSOR FAN MODEL YCUL VOLT HZ MCA1 MIN N F DISC SW2 D E FUSE CKT BKR 5 INCOMING LUGS WIRE RANGE6 COMPR 1 COMPR 2 COMPR 3 FANS FACTORY SUPPLIED OPTIONAL MIN3 MAX4 MIN MAX RLA LRA RLA LRA RLA LRA QT...

Page 35: ...JOHNSON CONTROLS 35 FORM 150 63 NM6 1020 1 This page intentionally left blank...

Page 36: ...X4 MIN MAX RLA LRA RLA LRA RLA LRA QTY FLA EA SINGLE POINT DISCONNECT BREAKER 0125 380 415 50 87 100 100 100 100 100 10 1 14 1 0 14 1 0 16 6 127 16 6 127 2 4 0 0145 380 415 50 94 150 100 110 100 110 1...

Page 37: ...3 FANS RLA LRA RLA LRA RLA LRA QTY FLA EA 16 6 127 16 6 127 2 4 0 19 9 167 19 9 167 2 4 0 19 9 167 19 9 167 2 4 0 23 9 198 23 9 198 2 4 0 23 9 198 23 9 198 2 4 0 19 9 167 19 9 167 19 9 167 2 4 0 19 9...

Page 38: ...of the rated load amps for all other loads included in the circuit per N E C Article 440 22 5 Circuit breakers must be U L listed and CSA certified and maximum size is based on 225 of the rated load a...

Page 39: ...mum Over Current Protection Dual Element Fuse or Circuit Breaker LEGEND Factory Supplied Supplied by Others VOLTAGE LIMITATIONS The following voltage limitations are absolute and operation beyond thes...

Page 40: ...2 2 2 2 2 2 3 3 2 2 2 2 2 2 2 2 Operating Shipping Weight Aluminum Fin Coils lbs 2051 2058 2401 2445 2788 3947 4000 Copper Fin Coils lbs 2201 2208 2551 2595 2938 4247 4300 Compressors Scroll Type Comp...

Page 41: ...4 87 6 87 6 68 1 68 1 102 2 102 2 102 2 102 2 102 2 102 2 56 5 56 5 56 5 56 5 84 4 84 4 65 6 65 6 98 5 98 5 98 5 98 5 98 5 98 5 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4057 4114 4175 4...

Page 42: ...harge ckt1 ckt2 liters 6 6 8 13 12 8 8 8 8 Shipping Weight Aluminum Fin Coils kg 930 934 1089 1109 1265 1790 1814 Copper Fin Coils kg 998 1002 1157 1177 1333 1926 1950 Compressors Scroll Type Compress...

Page 43: ...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 8 8 13 8 13 13 12 11 4 12 12 20 12 20 20 1840 1866 1...

Page 44: ...ns 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 degrad...

Page 45: ...44 3 25 4 31 0 0061 44 3 25 3 31 0 MODEL YCUL A 0045 7 3 8 0061 5 1 4 LD08727 HOLES TYP MOUNTING 3 4 DIA TOP VIEW 2 3 X 3 RIGGING HOLES EACH SIDE SIDE VIEW POWER PANEL CONTROL PANEL ORIGIN Y C G X G C...

Page 46: ...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...

Page 47: ...8 80 7 16 14 11 16 29 25 3 4 9 37 51 1 2 1 1 2 1 1 2 87 3 4 3 1 4 A 2 1 8 O D SUCT CONN 11 LIQUID STOP VALVE 7 8 O D LIQUID CONN C 10 5 16 73 7 16 D A B 9 1 4 LD08728 ALUMINUM COIL COPPER COIL YCUL C...

Page 48: ...le 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 p...

Page 49: ...in X Y Z 0121 43 5 26 9 36 9 HOLES TYP MOUNTING 3 4 DIA TOP VIEW 2 3 X 3 RIGGING HOLES EACH SIDE SIDE VIEW POWER PANEL CONTROL PANEL ORIGIN Y C G X A A G C Z X 105 1 8 80 7 16 14 11 16 29 25 3 4 9 37...

Page 50: ...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 co...

Page 51: ...NN 9 13 16 27 3 16 B SYS 2 LIQ STOP VALVE 938 9 3 4 Y 882 99 1 2 882 938 C G X 15 1 4 LD08730 ALUMINUM COIL COPPER COIL YCUL Center of Gravity in X Y Z 0125 59 7 40 2 46 6 0145 59 5 40 5 45 6 0161 59...

Page 52: ...tion and ease of maintenance Site restrictions may compromise minimum clearances indicated below resulting in unpredictable airflow patterns and possible diminished performance YORK s unit controls wi...

Page 53: ...5 44 9 2 3 X 3 RIGGING 3 4 DIA MOUNTING HOLES TYP HOLES EACH SIDE CONTROL PANEL TOP VIEW POWER PANEL ORIGIN 91 20 1 2 50 97 3 8 29 33 13 16 1 1 2 1 1 2 C G Z X A A 2 1 16 9 A SYS 1 B SYS 2 LIQ CONNS S...

Page 54: ...rns 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 degra...

Page 55: ...Gravity mm X Y Z 0045 1 125 644 788 0061 1 125 644 788 HOLES TYP MOUNTING 19 DIA TOP VIEW 2 76 X 76 RIGGING HOLES EACH SIDE POWER PANEL CONTROL PANEL ORIGIN Y C G X G C Z X 2670 737 616 229 235 1308...

Page 56: ...nd possible diminished performance YORK s unit controls will optimize operation without nuisance high pressure safety cutouts however the system designer must consider potential performance degradatio...

Page 57: ...IGIN Y C G X A A G C Z X 2670 2043 373 737 654 229 940 1308 38 38 2229 82 A 2 1 8 O D SUCT CONN 280 LIQUID STOP VALVE 7 8 O D LIQUID CONN C 262 1866 D A B 235 ALUMINUM COIL COPPER COIL MODEL YCUL A 00...

Page 58: ...tion 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 s...

Page 59: ...Center of Gravity mm X Y Z 0121 1 106 682 938 HOLES TYP MOUNTING 19 DIA TOP VIEW 2 76 X 76 RIGGING HOLES EACH SIDE POWER PANEL CONTROL PANEL ORIGIN Y C G X A A G C Z X 2670 2043 373 737 654 229 940 13...

Page 60: ...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 co...

Page 61: ...YS 1 LIQ STOP VALVE LIQ CONN 249 690 B SYS 2 LIQ STOP VALVE D 248 Y C 2527 A B C G X 387 ALUMINUM COIL COPPER COIL MODEL YCUL A B 0125 176 183 0145 176 183 0161 176 183 0171 170 183 0185 176 149 YCUL...

Page 62: ...e restrictions may compromise minimum clearances indicated below resulting in unpredictable airflow patterns and possible diminished performance YORK s unit controls will optimize operation without nu...

Page 63: ...H SIDE CONTROL PANEL TOP VIEW POWER PANEL ORIGIN 2311 521 1270 2473 737 859 38 38 C G Z X 53 229 A SYS 1 B SYS 2 LIQ CONNS SUCT CONNS SYS 1 2 SYS 1 2 616 1791 3022 C SYS 1 D SYS 2 SYS 1 2 LIQ STOP VAL...

Page 64: ...678 586 634 548 2445 0121 801 693 694 600 2788 0125 987 984 990 987 3947 0145 1005 1005 995 995 4000 0161 1012 1013 1015 1017 4057 0171 1031 1034 1023 1026 4114 0185 1039 1045 1042 1049 4175 0211 1275...

Page 65: ...263 213 253 205 933 0081 316 242 300 230 1089 0095 307 266 288 249 1109 0121 364 314 315 272 1265 0125 448 446 449 448 1791 0145 456 456 452 451 1814 0161 459 460 460 461 1840 0171 467 469 464 466 186...

Page 66: ...1343 1246 1324 1229 5142 0235 1390 1299 1393 1302 5384 0255 1437 1344 1421 1329 5530 0275 1451 1356 1454 1359 5620 Copper Fin Coil Weight Distribution kg YCUL A B C D Total 0045 279 213 287 220 998 0...

Page 67: ...CP 2 27 CP 2 26 0235 CP 2 27 CP 2 26 CP 2 27 CP 2 26 0255 CP 2 27 CP 2 27 CP 2 27 CP 2 27 0275 CP 2 27 CP 2 27 CP 2 27 CP 2 27 Aluminum Fin Seismic Isolator Selections VMC Model AEQM xxxx YCUL A B C D...

Page 68: ...Red 3 Grn 3 Red 0061 3 Grn 3 Red 3 Grn 3 Red 0081 3 Grn 3 Grn 3 Grn 3 Red 0095 3 Grn 3 Grn 3 Grn 3 Red 0121 3 Gray 3 Gray 3 Gray 3 Gray 0125 3 Gray 3 Gray 3 Gray 3 Gray 0145 3 Gray 3 Gray 3 Gray 3 Gra...

Page 69: ...27 CP 2 27 CP 2 27 CP 2 27 0235 CP 2 27 CP 2 27 CP 2 27 CP 2 27 0255 CP 2 27 CP 2 27 CP 2 27 CP 2 27 0275 CP 2 27 CP 2 27 CP 2 27 CP 2 27 Copper Fin Seismic Isolator Selections VMC Model AEQM xxxx YC...

Page 70: ...3 Grn 3 Grn 3 Grn 3 Grn 0121 3 Gray 3 Gray 3 Gray 3 Gray 0125 3 Gray 3 Gray 3 Gray 3 Gray 0145 3 Gray 3 Gray 3 Gray 3 Gray 0161 3 Gray 3 Gray 3 Gray 3 Gray 0171 4 Blk 4 Blk 4 Blk 4 Blk 0185 4 Blk 4 B...

Page 71: ...JOHNSON CONTROLS 71 FORM 150 63 NM6 1020 1 This page intentionally left blank...

Page 72: ...PLE AEQM 95 301055 95 RED CP 1 27 308439 27 ORANGE AEQM 97 301055 97 WHITE CP 1 28 308439 28 GREEN AEQM 98 301055 98 GRAY CP 1 31 308439 31 GRAY AEQM 96 301055 96 BLACK CP 2 25 308439 25 RED AEQM 1000...

Page 73: ...any way If required bolt mountings to floor through slots 4 Set the machine or base on the mountings The weight of the machine will cause the upper hous ing of the mount to go down possibly resting o...

Page 74: ...4 5 8 3 8 AEQM 98 7 5 1 2 4 1 2 2 1 2 5 8 1 4 7 1 4 5 8 3 8 AEQM 99 7 5 1 2 4 1 2 2 1 2 5 8 1 4 7 1 4 5 8 3 8 AEQM 1000 8 1 2 6 1 2 6 4 1 2 3 4 3 8 8 3 8 7 8 1 2 AEQM 1300 8 1 2 6 1 2 6 4 1 2 3 4 3 8...

Page 75: ...quipment or equipment base mounting holes Shim and or grout as required to level all isolator base plates A A1 4 maximum difference in elevation can be tolerated 4 Anchor all isolators to floor or sub...

Page 76: ...local codes See Figures 2 5 pages 24 27 9 Check tightness of power wiring inside the power panel on both sides of the motor contactors and overloads 10 Check for proper size fuses in main and control...

Page 77: ...roper compressor rotation turn the Unit Switch to OFF The Discharged Air or Suction Pres sure setpoint may need to be tempo rarily lowered to ensure all compres sors cycle on 7 After verifying compres...

Page 78: ...adjusting screw should be turned not more than one turn at a time allowing suf ficient time approximately 15 minutes between adjustments for the system and the thermal expansion valve to respond and s...

Page 79: ...JOHNSON CONTROLS 79 FORM 150 63 NM6 1020 This page intentionally left blank...

Page 80: ...tivate or de activate the unit INTRODUCTION MICROPROCESSOR BOARD The Microprocessor Board is the controller and de cision maker in the control panel System inputs such as pressure transducers and temp...

Page 81: ...ese characters indicate the actual values are greater than or less than the limit values which are being displayed KEYPAD The 12 button non tactile keypad allows the user to re trieve vitals system pa...

Page 82: ...til the switch is turned back on This message informs the operator that the chilled liq uid temperature is below the point determined by the setpoint and control range that the micro will bring on a s...

Page 83: ...s suction pressure limiting is in effect Suction Pressure Limiting is only available on units that have the suction pressure transducer installed If a low pressure switch is installed instead suction...

Page 84: ...on to operate The Suction Pressure Cutout is a software cutout that helps protect the chiller from a coil freeze up should the system attempt to run with a low refrigerant charge or a restriction in t...

Page 85: ...ses at 330 PSIG 25 PSIG 22 75 barg 1 72 barg The compressor is also equipped with a discharge temperature sensor for the purpose of sensing internal scroll temperature This sensor protects the scrolls...

Page 86: ...faulty battery is detected the unit will be prevented from running until the PROGRAM key is pressed Once PROGRAM is pressed the anti recycle timers will be set to the programmed anti recycle time to a...

Page 87: ...stem X Suction Limiting System X Percentage Load Limiting Manual Overide Status System X Pumping Down on shutdown Unit Safeties System Safeties Low Ambient Temp System X High Disch Pressure System X L...

Page 88: ...layed for 2 system units With the UNIT TYPE set as a condensing unit via jumper between J4 11 and J4 6 on the microboard the DISPLAY PRINT KEYS following list of operating data screens are viewable un...

Page 89: ...ctual number of sys tems and compressors on the unit This display of the load and unload timers indicate the time in seconds until the unit can load or unload Whether the systems loads or unloads is d...

Page 90: ...tal chiller current is displayed as shown below If the micro is programmed for CURRENTFEEDBACK NONE no current display will appear The preceding five messages will appear sequentially first for system...

Page 91: ...DATA OPER DATA QUICK REFERENCE LIST The following table is a quick reference list for infor mation available under the OPER DATA key Block of information repeats for each system Only displayed when C...

Page 92: ...E AIR LEAD LAG CONTROL AUTOMATIC FAN CONTROL DISCHARGE PRESS CURRENT FEEDBACK NONE COMPRESSOR LEAD LAG DISABLED SOFT START DISABLED PROGRAM VALUES DSCH PRESS CUTOUT 395 PSIG SUCT PRESS CUTOUT 44 PSIG...

Page 93: ...stored at the instant the fault occurred for each of the 6 Safety Shutdowns buffers The printout will begin with the most recent fault which occurred The most recent fault will always be stored as Sa...

Page 94: ...ient Displays Local or Remote control selection Displays the type of chilled liquid control Leaving or Return Displays the type of lead lag control Manual System 1 Manual System 2 or Automatic This is...

Page 95: ...System Liquid Line Solenoid or Hot Gas Solenoid was energized at the time of the fault Displays the number of fan stages in the system active at the time of the fault Displays the system amperage calc...

Page 96: ...DOWN arrow keys are also used for pro gramming the control panel such as changing numerical or text values when programming cooling setpoints set ting the daily schedule changing safety setpoints chil...

Page 97: ...yed Following are the four possible messages that can be displayed after pressing the COOLING SETPOINT key indicating the cooling mode This message indicates that the cooling setpoint is under LOCAL c...

Page 98: ...uction Pressure control the following message would be displayed instead of the previous message Suction Pressure control The setpoint and range are programmed with the UP arrow DOWN arrow and ENTER A...

Page 99: ...ration is then repeated if necessary This process may be followed until the hour minutes and meridian AM or PM of both the START and STOPpoints are set After changing the meridian of the stop time pre...

Page 100: ...ns when the suction pressure is permitted to tem porarily drop below the cutout point Details are explained under the topic of System Safeties The LOWAMBIENT TEMP CUTOUT allows the user to select the...

Page 101: ...assures discharge pressure does not drop too low The TOTAL NUMBER OF COMPRESSORS are the amount of compressors in the chiller and determines the stages of cooling available Notice in Table 14 that th...

Page 102: ...DISCHARGE PRESSURE CUTOUT 200 PSIG 399 PSIG 395 PSIG 13 8 BARG 27 5 BARG 27 2 BARG SUCTION PRESSURE CUTOUT WATER COOLING 44 0 PSIG 70 0 PSIG 44 0 PSIG 3 03 BARG 4 83 BARG 3 03 BARG LOW AMBIENT TEMP C...

Page 103: ...Discharge Mon Sun Discharge Air or Suction Pressure Pressure Control Mode Schedule Cutout Display Only Suction Setpoint Holiday Pressure Schedule Cutout Range Remote Setpoint Low Ambient Temp Cutout R...

Page 104: ...ular option After the option is changed the ENTER ADV key must be pressed to enter the data into memory Table 21 shows the programmable options Following are the displays in the order they appear OPTI...

Page 105: ...R E M O T E M O D E L L O C A L C O N T R O L M O D E S U C T I O N P R E S S U R E C O N T R O L M O D E D I S C H A R G E A I R A M B I E N T C O N T R O L S T A N D A R D 2 OPTION 6 DISPLAY UNITS...

Page 106: ...D F A N C O N T R O L A M B I E N T D S C H P R E S S Condenser fans are controlled by ambient temperature and discharge pressure This mode must be chosen if the discharge pressure transducers are no...

Page 107: ...and move the cursor on to the next programmable variable Jumper J11 on the microboard must be set to the CLKON position to turn on the clock If this is not done the clock will not function OPTION 12...

Page 108: ...Variable only Programmed under Service Mode Must be programmed for Thermostatic Viewable Only Condensing Unit MUST be Selected Via Installed Jumper Viewable Only Unit Type Unit Type YCUL0016 0090 ONL...

Page 109: ...E CONTROL The setpoint in Discharge Air Temperature Control is the temperature the condensing unit will control to within the control range The setpoint High Limit is the Setpoint plus the Cooling Ran...

Page 110: ...YSTEM STEP COMP 1 COMP 2 COMP 1 COMP 2 0 OFF OFF OFF OFF 1 ON HG OFF SEE NOTE 1 OFF OFF 2 ON OFF OFF OFF 3 ON OFF SEE NOTE 2 ON OFF 4 ON ON SEE NOTE 3 OFF OFF 5 ON ON ON OFF 6 ON ON ON ON STEP can be...

Page 111: ...olenoid is turned off when the DAT SP CR 2 2 Step 3 is skipped when loading occurs 3 Step 4 is skipped when unloading occurs TABLE 24 DISCHARGE AIR TEMPERATURE CONTROL FOR 3 COMPRESSORS SINGLE SYSTEM...

Page 112: ...ure falls below the Setpoint High Limit and greater than the Setpoint Low Limit loading and unloading do not occur This area of control is called the control range If the suction pressure falls below...

Page 113: ...mpressors in a circuit cycle off a compressor within the circuit will not be permitted to start until the anti recycle timer has timed out If the lead system has run for less than 5 minutes 3 times in...

Page 114: ...ture only See Table 26 The condenser fan control by Discharge Pressure is a feature that can be selected if the discharge pressure transducer is installed and fan recycling is not a con cern Fan contr...

Page 115: ...DP Fan Ctrl On Press Diff Press 3 OAT 65 F 18 3 C OAT 60 F 15 6 C 2 FAN FWD OR AND 7M 10M 2 4 6 8 1 3 2 4 DP Fan Ctrl On Press DP Fan Ctrl On Press 8M 11M 40 PSIG 2 76 Bars Diff Press 40 PSIG 2 76 Ba...

Page 116: ...2 SYS 1 SYS 2 1 1 2 1 FAN REV DP Fan Ctrl On Press DP Fan Ctrl On Press Diff Press 7M 10M 2 6 REV REV 2 DP Fan Ctrl On Press DP Fan Ctrl On Press 8M 11M 3 4 1 FAN FWD 20 PSIG 1 38 Bars Diff Press 20 P...

Page 117: ...JOHNSON CONTROLS 117 FORM 150 63 NM6 1020 2 This page intentionally left blank...

Page 118: ...ing is either 80 66 or 50 depending on the number of compressors on the unit The second stage of limiting is either 40 or 33 and is only available on 3 5 6 compressor units Table 29 shows the load lim...

Page 119: ...F Reset 10 New Setpoint 45 F 12 F 57 F Metric Reset 6VDC x 11 11 C 6 67 C Reset 10 New Setpoint 7 22 C 6 67 C 13 89 C MaxResetValueisthe MaxEMS PWMRemoteTemp Reset setpoint valuedescribedintheprogram...

Page 120: ...JOHNSON CONTROLS 120 FORM 150 63 NM6 1020 Unit Controls THIS PAGE INTENTIONALLY BLANK...

Page 121: ...do not apply to condensing units SERVICE AND TROUBLESHOOTING CLEARING HISTORY BUFFERS The history buffers may be cleared by pressing the HIS TORY key and then repeatedly pressing the UP arrow key unti...

Page 122: ...of the suction transducer The discharge pressure transducer is optional on some models Optional on Condensing Units only The suction temp sensor is on EEV units only SERVICE MODE INPUTS After entering...

Page 123: ...S 2 EEV OUTPUT J10 5 J10 6 SPARE J10 7 J10 8 SPARE 3 TABLE 31 MICROBOARD ANALOG INPUTS J4 10 SYS 1 SUCTION PRESS TRANSDUCER OR SYS 1 LOW PRESS SWITCH J4 11 UNIT TYPE CHILLER NO JUMPER J4 6 TO J4 11 YC...

Page 124: ...OHNSON CONTROLS 124 FORM 150 63 NM6 1020 FIG 19 MICROBOARD LAYOUT Service and Troubleshooting TB2 TB1 TB6 TB5 TB4 CLK ON OFF JUMPER TB3 J9 J7 J5 J6 J8 J4 J10 J2 J1 00770VIP U17 REAL TIME CLOCK BATTERY...

Page 125: ...on the digital inputs This voltage is in ref erence to ground The unit case should be sufficient as a reference point when measuring digital input voltages ANALOG INPUTS Temperature Refer to the unit...

Page 126: ...12 2 15 17637 11 14 2 22 16599 10 16 2 30 15629 9 18 2 37 14721 8 20 2 45 13872 7 22 2 52 13077 6 24 2 59 12333 4 26 2 67 11636 3 28 2 74 10982 2 30 2 81 10370 1 32 2 88 9795 0 34 2 95 9256 1 36 3 02...

Page 127: ...2 37 14721 8 20 2 45 13872 7 22 2 52 13077 6 24 2 59 12333 4 26 2 67 11636 3 28 2 74 10982 2 30 2 81 10370 1 32 2 88 9795 0 34 2 95 9256 1 36 3 02 8750 2 38 3 08 8276 3 40 3 15 7830 4 42 3 21 7411 6 4...

Page 128: ...tion pressure readout on the display will be 0 PSIG when the LP switch is open and 200 PSIG 13 79 BARG when the LP switch is closed The discharge transducers have a range from 0 to 400 PSIG The output...

Page 129: ...ield connection 0VDC If the optional Suction Transducer is not used on the YCUL0045 YCUL0185 a Low Pressure switch will be used Following are the microboard connections for the Low Pressure switch Sys...

Page 130: ...cross two specif ic points or pins that represent one of twelve buttons on the keypad Table 37 lists the key pin assignments for the keypad Power to the microboard must be turned off and the ribbon ca...

Page 131: ...402 Phone 1 800 982 6622 or 1 707 527 5555 International Orders Only The part number for the printer that is packaged specif i cally forYORK is P N 950915576 The cable to connect the printer can eithe...

Page 132: ...board NOTE Contact YORK Service before Replacing circuit Boards FLOW SWITCH REM 1 No air flow 1 Check air flow STOP NO RUN PERMISSIVE 2 Air flow switch improperly 2 Check that the air flow switch inst...

Page 133: ...FAULT or operating backwards and contactors Assure fan blows air upward 2 Too much refrigerant 2 Remove refrigerant 3 Air in refrigerant system 3 Evacuate and recharge system 4 Defective discharge 4 R...

Page 134: ...tion for Dis charge Air temp voltage table 3 Contactor Overload failure 3 Replace defective part 4 Compressor failure 4 Diagnose cause of failure and replace LACK OF COOLING EFFECT 1 Dirty evaporator...

Page 135: ...the system must be cleaned to prevent compressor failure Never use the scroll compressor to pump the refrigerant system down into a vacuum Doing so will cause internal arcing of the compressor motor...

Page 136: ...at EEV Only P18 Analog SYS 1 Run Time seconds P19 Analog SYS 1 Suction Pressure P20 Analog SYS 1 Discharge Pressure P21 Analog SYS 1 Cooler Inlet Refrigerant Temp R 407c Only P22 Analog P23 Analog SYS...

Page 137: ...an Stage P62 Coded P63 Coded SYS 2 Condenser Fan Stage P64 Coded P65 Coded Unit Control Mode 0 Leaving Water 1 Return Water 2 Discharge Air 3 Suction Press 4 Cooling 5 Heating ISN TYPE DATA PG P66 Ana...

Page 138: ...11 ANTI RECYCLE TIMER ACTIVE 11 HIGH OIL TEMPERATURE 12 MANUAL OVERRIDE 12 HIGH DISCHARGE TEMPERATE 13 SUCTION LIMITING 13 IMPROPER PHASE ROTATION 14 DISCHARGE LIMITING 14 LOW MOTOR CURRENT MP HPCO 1...

Page 139: ...JOHNSON CONTROLS 139 FORM 150 63 NM6 1020 3 This page intentionally left blank...

Page 140: ...JOHNSON CONTROLS 140 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0045 YCUL0095 FIG 22 ELEMENTARY DIAGRAM CONTROL CIRCUIT YCUL0045 YCUL0095 LD08780...

Page 141: ...JOHNSON CONTROLS 141 FORM 150 63 NM6 1020 4 LD08801...

Page 142: ...JOHNSON CONTROLS 142 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0045 YCUL0095 FIG 23 ELEMENTARY DIAGRAM POWER CIRCUIT YCUL0045 YCUL0095 LD08778...

Page 143: ...JOHNSON CONTROLS 143 FORM 150 63 NM6 1020 4 ELEMENTARY DIAGRAM YCUL0045 YCUL0095 FIG 24 ELEMENTARY DIAGRAM MIDDLE MARKET YCUL0045 YCUL0095 LD08945...

Page 144: ...JOHNSON CONTROLS 144 FORM 150 63 NM6 1020 Wiring Diagrams CONNECTION DIAGRAM YCUL0045 YCUL0095 LD08779 FIG 25 CONNECTION DIAGRAM MIDDLE MARKET YCUL0045 YCUL0095...

Page 145: ...JOHNSON CONTROLS 145 FORM 150 63 NM6 1020 4 LD08946...

Page 146: ...JOHNSON CONTROLS 146 FORM 150 63 NM6 1020 Wiring Diagrams LD08777 ELEMENTARY DIAGRAM YCUL0121 FIG 26 ELEMENTARY DIAGRAM CONTROL CIRCUIT YCUL0121...

Page 147: ...JOHNSON CONTROLS 147 FORM 150 63 NM6 1020 4 LD08800...

Page 148: ...JOHNSON CONTROLS 148 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0121 FIG 27 ELEMENTARY DIAGRAM POWER CIRCUIT YCUL0121 LD08774...

Page 149: ...JOHNSON CONTROLS 149 FORM 150 63 NM6 1020 4 LD08945 FIG 28 ELEMENTARY DIAGRAM MIDDLE MARKET YCUL0040E_ ELEMENTARY DIAGRAM YCUL0121...

Page 150: ...JOHNSON CONTROLS 150 FORM 150 63 NM6 1020 Wiring Diagrams CONNECTION DIAGRAM YCUL0121 FIG 29 CONNECTION DIAGRAM MIDDLE MARKET YCUL0121 LD08944...

Page 151: ...JOHNSON CONTROLS 151 FORM 150 63 NM6 1020 4 LD08776...

Page 152: ...JOHNSON CONTROLS 152 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0125 YCUL0185 FIG 30 ELEMENTARY DIAGRAM CONTROL CIRCUIT YCUL0125 YCUL0185 LD08784...

Page 153: ...JOHNSON CONTROLS 153 FORM 150 63 NM6 1020 4 LD08804...

Page 154: ...JOHNSON CONTROLS 154 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0125 YCUL0185 FIG 31 ELEMENTARY DIAGRAM POWER CIRCUIT YCUL0125 YCUL0185 LD08802...

Page 155: ...JOHNSON CONTROLS 155 FORM 150 63 NM6 1020 4 LD08781...

Page 156: ...JOHNSON CONTROLS 156 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0125 YCUL0185 FIG 32 ELEMENTARY DIAGRAM MIDDLE MARKET YCUL0125 YCUL0185 LD08783...

Page 157: ...JOHNSON CONTROLS 157 FORM 150 63 NM6 1020 4 This page intentionally left blank...

Page 158: ...JOHNSON CONTROLS 158 FORM 150 63 NM6 1020 Wiring Diagrams CONNECTION DIAGRAM YCUL0125 YCUL0185 FIG 33 CONNECTION DIAGRAM MIDDLE MARKET YCUL0125 YCUL0185 LD08782...

Page 159: ...JOHNSON CONTROLS 159 FORM 150 63 NM6 1020 4 LD08803...

Page 160: ...JOHNSON CONTROLS 160 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0211 YCUL0275 FIG 34 ELEMENTARY DIAGRAM CONTROL CIRCUIT YCUL0211 YCUL0275 LD08788...

Page 161: ...JOHNSON CONTROLS 161 FORM 150 63 NM6 1020 4 LD08807...

Page 162: ...JOHNSON CONTROLS 162 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0211 YCUL0275 FIG 35 ELEMENTARY DIAGRAM POWER CIRCUIT YCUL0211 YCUL0275 LD08805...

Page 163: ...JOHNSON CONTROLS 163 FORM 150 63 NM6 1020 4 LD08785...

Page 164: ...JOHNSON CONTROLS 164 FORM 150 63 NM6 1020 Wiring Diagrams ELEMENTARY DIAGRAM YCUL0211 YCUL0275 FIG 36 ELEMENTARY DIAGRAM MIDDLE MARKET YCUL0211 YCUL0275 LD08786...

Page 165: ...JOHNSON CONTROLS 165 FORM 150 63 NM6 1020 4 This page intentionally left blank...

Page 166: ...JOHNSON CONTROLS 166 FORM 150 63 NM6 1020 Wiring Diagrams CONNECTION DIAGRAM YCUL0211 YCUL0275 FIG 37 CONNECTION DIAGRAM MIDDLE MARKET YCUL0211 YCUL0275 LD08787...

Page 167: ...JOHNSON CONTROLS 167 FORM 150 63 NM6 1020 4 LD08806...

Page 168: ...nnsylvania 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 NM6 1020 Issue Date Octob...

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