York YCAQ10, Manual

Page 1: ...MODELS YCAQ10 YCAM12 YCAK14 YCAKI16 YCAG18 YCAR11 YCAN13 YCAL15 YCAJ17 YCAH19 ALSO MODELS YCH100 120 150 175 200 STYLE C 00004TG WITH MICROPROCESSOR CONTROL PANEL WITH G E II 4 EPROM MODEL YCHA100 WI...

Page 2: ...cable to units built after May 1 1987 which are identified by the later no menclature A description of both nomenclatures is given below Also a cross reference chart of models is pro vided for your co...

Page 3: ...IN 35 CONDENSER F MAX 130 UNIT COOLER MODEL WATER GPM YCHA MIN MAX 100 120 550 120 120 580 150 120 580 175 150 640 200 200 700 0 F With Optional Low Ambient Kit NOTE The evaporator is protected agains...

Page 4: ...the top of the unit The area within the clearances shown above and area under the unit must be kept clear of all obstructions that would impede free air flow to the unit In installations where winter...

Page 5: ...it The area within the clearances shown above and area under the unit must be kept clear of all obstructions that would impede free air flow to the unit In installations where winter operation is inte...

Page 6: ...14 2 0AWG 172 250 200 480 1 14 2 0AWG 50 380 415 3 50 210 300 200 480 1 14 2 0AWG 210 300 200 480 1 14 2 0AWG 64 346 3 50 230 350 400 480 1 6 300MCM 230 350 400 480 1 6 300MCM 17 200 360 399 600 400...

Page 7: ...8 600 30 480 119 413 159 4 4 3 2 2 5 7 119 413 159 4 4 3 2 2 5 7 8 8 600 30 480 148 590 197 1 4 3 2 2 6 2 148 590 197 1 4 3 2 2 6 2 8 8 600 30 480 163 700 216 8 4 3 2 2 6 6 163 700 216 8 4 3 2 2 6 6...

Page 8: ...ead 50 33 17 43 29 14 50 38 25 12 OIL Sys 1 3 3 3 3 3 CHARGE GALS Sys 2 3 3 3 3 CONDENSER DWP 450 PSIG NO OF FANS 30 DlA DIRECT DRIVE 4 7 8 8 8 60 Hz 11 000 11 000 11 000 11 000 11 000 CFM EACH 50 Hz...

Page 9: ...DIMENSIONS For ground level installations precautions should be taken to protect the unit from tampering by or injury to unauthorized persons Screws on access panels will prevent casual tampering How...

Page 10: ...1 405 406 404 YCHA175 401 406 405 403 401 403 403 401 YCHA200 404 403 407 405 404 405 407 402 MOUNTING ALUMINUM COIL UNITS ISOLATOR LOCATIONS CHILLER J K L M N P R S MODEL NO TYPE SIZE YCHA100 2 31 2...

Page 11: ...nto the control panel circuit These field modifications may be made as shown on the WIRING DIAGRAMS MULTIPLE UNITS For increased compressor protection and to reduce power inrush at start up on multipl...

Page 12: ...er compressor with 3 unloaders and 4 steps of unloading as needed to maintain the desired leaving water temperature UNIT CONTROLS AND OPERATION YCHA100 Concise step by step instructions are printed on...

Page 13: ...ding to setting 0 7 respectively 3 SYS ON OFF Switch The switch allows the operator to manually turn off the system To operate the system the switch must be in the ON position 4 DATA DISPLAY CODES Ref...

Page 14: ...nti recycle timer has 8 min left at shutdown Restart can occur in 8 minutes Anti recycle time greater than 2 min ex Anti recycle timer has 1 min left at shutdown Restart can occur in 2 min Anti recycl...

Page 15: ...r is started as soon as the first Fault occurs If 2 more faults do not occur in the next 90 minutes the counter is reset to 0 After a fault restart cannot be expected until the anti re cycle timer tim...

Page 16: ...UNDER POWER SUPPLY BOARD R P RELAY RUN PERMISSIVE RELAY RELAY OUTPUT BOARD 41 EMERGENCY 5 STOP 4 CONNECTIONS 3 FOR FLOW SWITCH REMOTE CYCLING DEVICES 13FU 14FU L 2 GND 115VAC POWER FUSES 115VAC POWER...

Page 17: ...HAT Unit locks out when the ambient temperature is above 130 F Upon a decrease in temperature below 130 F the unit will restart providing the anti recycle timer has timed out and a minimum 2 minute de...

Page 18: ...TROLS 1 Suction Pressure If Suction Pressure exceeds 105 PSIG the Micro Board will unload the compressor It will automatically reload when suction pressure drops below 95 PSIG YCHA100 2 Flow Switch To...

Page 19: ...ut Board This port on the bottom right of the Logic Board J6 allows service personnel to obtain a printout of unit con ditions at any time To make use of this option contact YORK Service or Marketing...

Page 20: ...YORK INTERNATIONAL 20 LD01779 YCHA100 FIG 9 WIRING DIAGRAM YCHA100...

Page 21: ...FORM 150 40 NM20 21 YORK INTERNATIONAL YCHA100 LD01779 D...

Page 22: ...YORK INTERNATIONAL 22 LD01780 L YCHA100 FIG 9 Continued...

Page 23: ...FORM 150 40 NM20 23 YORK INTERNATIONAL LD01780 R YCHA100...

Page 24: ...YORK INTERNATIONAL 24 YCHA100 LD01781 FIG 9 Continued...

Page 25: ...FORM 150 40 NM20 25 YORK INTERNATIONAL LD01782 YCHA100...

Page 26: ...etween terminals 41 and 2 Should be 115VAC 10 C Assure crankcase heaters are on Allow crank case heaters to remain on a minimum of 24 hours before startup This is important to assure no re frigerant i...

Page 27: ...he temperature of the liquid refrigerant out of the condenser should not be more than 15 F less than the condensing temperature The temperature corresponding to the condensing pressure from refrigeran...

Page 28: ...oid opens As a result of this no pumpdown mode is included in the system switch FAN CYCLING Condenser Fans are normally cycled by the Micro in response to outside ambient temperature If the out side t...

Page 29: ...normal system cycling of the loaders and compressor is experienced due to a cooling range which is too tight Page 30 shows a listing of each cooling range code along with the temperatures at which eac...

Page 30: ...ING RANGE Loader Stage 2 Setpoint Setpoint minus 0 8 F OF 1 5 F Compressor Stage 1 Setpoint minus 0 7 F Setpoint minus 1 5 F STAGE ON OFF COOLING RANGE Loader Stage 4 Setpoint plus 1 6 F Setpoint plus...

Page 31: ...e pack 2 of the 7 switches are active An explanation of the Jumpers Switches on the Micro Logic Board is provided on this page and page 32 YCHA100 MICRO LOGIC BOARD JUMPER OPTIONS REV B BOARDS Three j...

Page 32: ...The dot can be misleading when identifying switch position See the Side View drawings for recommended position verification LD01785 1 Spare 2 Spare 3 OFF RWT Control Standard as Shipped ON LWT Control...

Page 33: ...n stop valve B Open the discharge stop valve two turns of the stem C Operatethecompressoruntil15to20inchesvacuum is obtained Do this by disconnecting the wiring to LLSV and repeatedly starting the com...

Page 34: ...ter temp cutout setting ____ F 5 Chilled water setpoint _________________ F 6 Outside Air Temperature _______________ F 7 Low Ambient Temp Cutout Setting _______ F 8 Full load motor current 9 Suction...

Page 35: ...Check Crankcase Oil heater operation particularly on start up 350 Watt heater should be ON when unit is OFF Measure Heater Current Should be Min 2 Amps 3 Liquid Line Solenoid Valve LLSV 3 Check wirin...

Page 36: ...fan 130 F Will re start auto rotation matically if temperature 3 Air flow to unit restricted or 3 Check installation clearances drops below 130 F being re circulated See page 4 F10 Fault Code 1 Temper...

Page 37: ...ctor defective Compressor won t load 1 Suction Pressure 105 PSIG 1 Excessive load Check OPERATING solenoid valve de energizes LIMITATIONS on page 3 Allow unit to to load compressor operate until sucti...

Page 38: ...uide you through each control and monitoring procedure The control panel is also com patible with a building automation energy management system FIG 13 CONTROL CENTER YCHA 120 200 LD01786 A 4 digit di...

Page 39: ...selecting 18 of the Select Data Display The mode of failure will then be indicated by a number from 0 11 This number can be translated by comparing the number to the Fault Code listing on the right s...

Page 40: ...te start up timer has expired since shutdown ex Anti recycle timer has 8 min left at shutdown Restart can occur in 8 minutes Anti recycle time greater than 2 min ex Anti recycle timer has 1 min left a...

Page 41: ...estart the system The operator should also be aware that be fore the unit will display an F code the prob lem system has already shut down twice on a fault and restarted within the last 90 minutes Thi...

Page 42: ...2T 13FU 14FU L 2 GND 115VAC POWER FUSES 115VAC POWER INPUT ANALOG INPUT BOARD UNDER POWER SUPPLY BOARD R P RELAY RUN PERMISSIVE RELAY RELAY OUTPUT BOARD 41 EMERGENCY 5 STOP 4 CONNECTIONS 3 FOR FLOW S...

Page 43: ...mum 2 minute delay has passed An F 10 code will be displayed while the temperature is low and both sys tems will be shut down The F will disappear when temp rises above cut out 5 High Ambient Temperat...

Page 44: ...ent Whenever an F1 or F5 Fault occurs check discharge pressure at the time of the fault motor current at the time of fault and also if the H P and motor protector contacts are open YCHA120 150 175 200...

Page 45: ...ANNUNCIATION ALARM CONTACTS OPTIONAL YORK can supply alarm contacts which will de energize to function as a warning if unit malfunction occurs A 28 volt external alarm circuit by others must be wired...

Page 46: ...YORK INTERNATIONAL 46 LD01787...

Page 47: ...FORM 150 40 NM20 47 YORK INTERNATIONAL LD01788...

Page 48: ...YORK INTERNATIONAL 48 LD01789...

Page 49: ...FORM 150 40 NM20 49 YORK INTERNATIONAL LD01790...

Page 50: ...YORK INTERNATIONAL 50 LD01791...

Page 51: ...FORM 150 40 NM20 51 YORK INTERNATIONAL LD01792...

Page 52: ...measurement between terminals 41 and 2 Should be 115VAC 10 C Assure crankcase heaters are on Allow crank case heaters to remain on a minimum of 24 hours before startup This is important to assure no...

Page 53: ...erature of the liquid refrigerant out of the condenser should not be more than 15 F less than the condensing temperature The temperature cor responding to the condensing pressure from refrig erant tem...

Page 54: ...t be cutout cutout 44 PSIG At the same time the oil pressure of the lag compressor must be 20 PSID 14 T 10 min The anti recycle timer times out This places the timer at T 0 position The compressors wi...

Page 55: ...compres sor capacity control solenoids located on the front handhole cover The compressor is loaded when the solenoid is de energized and unloaded when the sole noid is energized Unloading is accompli...

Page 56: ...nge 10 System Switches Both ON SYS 1 LEAD J8 on Micro Logic IN or Sw 5 on Micro ON J10 on Micro Logic OUT or Sw 3 on Micro OFF Typical 4 stages of unloading RWT Control Optional 6 or 8 stages of unloa...

Page 57: ...1 5 F 4 1 6 F 5 1 8 F 6 1 9 F 7 2 0 F LWT COOLING RANGES 6 AND 8 STAGE If the LWT option is utilized loading and unloading for each stage and the respective temperature at which it occurs is shown in...

Page 58: ...Setpoint minus 0 3 F COOLING RANGE Lead Compr Loader Stage 3 Setpoint minus 0 2 F Setpoint minus 0 7 F OF 1 6 F Lead Compr Loader Stage 2 Setpoint minus 0 5 F Setpoint minus 1 1 F Lead Compressor Stag...

Page 59: ...t plus 0 7 F Setpoint COOLI NG RANGE Lead Compr Loader Stage 2 Setpoint Setpoint minus 0 7 F OF 1 4 F Lead Compressor Stage 1 Setpoint minus 0 7 F Setpoint minus 1 4 F STAGE ON OFF COOLING RANGE Lag C...

Page 60: ...e 7 switches are active An explanation of the Jumpers Switches on the Micro Logic Board is provided on this page and page 61 YCHA120 150 175 200 MICRO LOGIC BOARD JUMPER OPTIONS REV B BOARDS Three jum...

Page 61: ...N EMS Control Optional Digital Input Board Installed 5 OFF 4 Stage Control Standard as Shipped ON 8 Stage Control Optional as ordered for 6 7 or 8 stage control 6 Spare 7 OFF Automatic lead lag compre...

Page 62: ...the discharge stop valve two turns of the stem C Operate the compressor until 15 to 20 inches vacuum is obtained Do this by disconnecting the wiring to LLSV and repeatedly starting the compres sor Rec...

Page 63: ...Optional 3 Optional 4 Low leaving water temperature cutout setting __ F 5 Chilled water setpoint ______________ F 6 Outside Air Temperature ___________ F 7 Low Ambient Temp Cutout Setting ___ F 8 Ful...

Page 64: ...2 Check Crankcase Oil heater operation particularly on start up 350 Watt heater should be ON when unit is OFF Measure Heater Current Should be Min 2 Amps 3 Liquid Line Solenoid Valve LLSV 3 Check wir...

Page 65: ...p Correct fan Will re start automatically rotation if temperature drops below 130 F 3 Air flow to unit restricted or 3 Check installation clearances See being re circulated page 5 F10 Fault Code 1 Tem...

Page 66: ...load Check OPERATING solenoid valve System 1 or 95 PSIG System LIMITATIONS on page 3 Allow de energizes to 2 unit to operate until suction pressure load compressor drops to 95 PSIG System 1 or 85 PSIG...

Page 67: ...on the Micrologic Board to the ON position Right side pushed down This enables manual adjustment of the low ambient cut out 2 Select Display Code 0 7 on the Control Panel to view the low ambient cut...

Page 68: ...f the fans This modification should be performed as follows 1 Place SW2 on the Micrologic Board to the ON position Right side pushed down This enables manual adjustment of the low ambient cut out 2 Se...

Page 69: ...to the defective component Enclosed with the new part you will also receive a return address label which must be used when returning the defective part Only defective printed circuit boards are to be...

Page 70: ...EV 1 D157 031 00928 002 water GE II 4BR REV 0 B8BC 031 00928 005 brine Dual System REV B or C GE II 5 REV 1 B727 031 00928 001 water GE II 5BR REV 0 CID6 031 00928 004 brine If a low ambient kit is in...

Page 71: ...nal fuse opens in the 2T transformer and can be replaced by simply locating the fuse under the brown paper wrapping carefully slitting the paper and soldering in a new fuse The fuse is a standard 3 4...

Page 72: ...e the MCB resistor is plugged in See Fig below This will positively determine the line level of MCB you need The line level will be stamped behind the part number 031 00817B i e 031 0081702 The B shou...

Page 73: ...pr 2 will come on These fans will remain on regardless of discharge pressure or loading until the respective compressor stops or temperature drops below 35 F The other two fans on each system are cycl...

Page 74: ...CH No Does Not Apply GE Series C YCHA Yes No GE Series C YCHA No Does Not Apply GE Series EFFECTIVE IMMEDIATELY TRANSDUCER WARRANTY REQUIREMENTS FOR RECIP SMART PANEL YORK has made an agreement with K...

Page 75: ...14 100 75 50 25 CAPACITY Sys 2 100 80 60 20 100 67 50 17 100 71 57 29 100 75 50 25 CONTROL Lead Sys 1 100 80 60 40 20 100 83 67 100 86 71 57 100 88 75 62 OPT Lead 50 33 17 43 29 14 50 38 25 12 Sys 2 1...

Page 76: ...mpletely and then turn them one turn toward the front seat position to assure that the transducers are not valved off This should also be checked when troubleshooting In the past we have found the cus...

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