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4.0 ELECTRICAL

Summary of Contents for ACDS

Page 1: ...0 Products that perform By people who care ACDS 60Hz INSTALLATION OPERATION MAINTENANCE MANUAL INSTALLATION OPERATION MAINTENANCE MANUAL MODEL AIR COOLED SCROLL DIRECT EXPANSION CHILLERS R410A 10 to 1...

Page 2: ...Keypad Operation 35 4 2 3 IR32 Electronic Thermostat Parameter List 35 4 2 4 IR32 Electronic Thermostat Troubleshooting 37 4 3 Vision 2020i Controller and Terminal 38 4 3 1 DBG1 Operator Keypad 38 4...

Page 3: ...nditions as a final verification of reliability If the package is installed operated and maintained with care and attention to the instructions contained here in it will yield many years of satisfacto...

Page 4: ...5 0 9 8 4 105 0 9 8 4 105 0 9 8 4 133 0 12 4 TOTAL CFM 10150 20200 25000 38000 60300 54798 54798 71400 NO OF FAN 1 2 4 4 6 6 6 6 FAN DIA INCH MM 30 0 762 30 0 762 30 0 762 30 0 762 30 0 762 30 0 762 3...

Page 5: ...9 4 282 6 26 3 4 282 6 26 3 TOTAL CFM 71400 96960 95200 124140 122850 147420 147420 NO OF FAN 6 8 8 10 10 12 12 FAN DIA INCH MM 31 5 800 0 31 5 800 0 31 5 800 0 31 5 800 0 31 5 800 0 31 5 800 0 31 5 8...

Page 6: ...not attach a chain hoist sling to the piping or equipment Move the unit in an upright position and let it down gently from trucks or rollers 2 3 2 RIGGING AND MOVING Any unit mounted on skids may be...

Page 7: ...7 2 0 INSTALLATION FIGURE 2 3 2 ACDS RIGGING ACDS 010 ACDS 020...

Page 8: ...8 2 0 INSTALLATION ACDS 030 040 050 060 070 ACDS 080 090 100 120 ACDS 135 150 165 180...

Page 9: ...9 2 0 INSTALLATION FIGURE 2 4 2B DIMENSIONAL DATA ACDS 010...

Page 10: ...10 2 0 INSTALLATION ACDS 020...

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Page 14: ...19 200 mm 24 609 600 mm 88 2235 600 mm AIR FLOW AIR FLOW AIR FLOW CONTROL BOX ACCESS 6 NOS OF n 2 9 73mm LIFTING HOLES ON BOTH SIDE OF THE FRAME 6 NOS OF 3 4 19 MOUNTING HOLES FOR SPRING ISOLATORS 12...

Page 15: ...15 2 0 INSTALLATION ACDS 100 120...

Page 16: ...OR SPRING ISOLATORS AIR FLOW 6 NOS OF 2 9 73 200 mm LIFTING HOLES ON BOTH SIDE OF THE FRAME POWER ENTRY BOTTOM POWER ENTRY BOTTOM 30 762 000 mm 83 2101 850 mm 83 2101 850 mm 30 762 000 mm CONTROL BOX...

Page 17: ...NDUIT TO CONTROL BOX TO ISOLATE UNIT 4 WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON UNIT WATER IN CONNECTION 3 5 NOMINAL DIA OPTIONAL WELDED FLANGE CONNECTION WATER OUT CONNECTION 3 5 NOMINAL DIA...

Page 18: ...es of split systems Kindly note that These flexible connectors must be suitable for the fluid and pressures involved When using flexible connectors in refrigerant piping they must be mounted in the re...

Page 19: ...19 2 0 INSTALLATION ACDS 030 040 050 060 070 ACDS 080 090 100 120 135 150 ACDS 165 180...

Page 20: ...OPERATING WEIGHT LBS KG P1 P2 P3 P4 P5 P6 P7 P8 030 470 213 713 323 713 323 470 213 2365 1073 040 611 277 704 319 704 319 611 277 2629 1193 050 1060 481 932 423 932 423 1060 481 3984 1807 060 1133 51...

Page 21: ...RAE Handbook and may operate equally well Whatever the system is selected the water flow must be constant 2 7 2 WATER CONNECTIONS Multiple Packaged Chillers Multiple unit package chillers have been su...

Page 22: ...22 2 0 INSTALLATION FIGURE 2 7A FIGURE 2 7B FIGURE 2 7C FIGURE 2 7D FIGURE 2 7E...

Page 23: ...ions should be taken All field wirings are to be in accordance with the National Electrical Code and state and local codes All wirings are to be checked for damage and all terminal connections are to...

Page 24: ...UP 1 Before starting the compressor s check all three phases of supply voltage of all legs of the motor They must be within 10 of the nameplate voltage 2 Start compressor s check the gauges and note i...

Page 25: ...25 3 0 OPERATION FIGURE 3 2 1 TYPICAL PIPING SCHEMATIC ACDS 010 020 030...

Page 26: ...26 3 0 OPERATION ACDS 040 050 060 070...

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Page 28: ...28 3 0 OPERATION ACDS 135 150...

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Page 30: ...nately thus balancing minor load variations Variation of unit capacity in response to system load requirements is controlled by an operating thermostat which monitors the return water temperature On m...

Page 31: ...s Contactors are used either singly or in parallel pairs for across the line start simultaneous operation These devices are amp rated to handle both rated load amp and locked rotor amps CR Relays Misc...

Page 32: ...ION FIGURE 3 6 WATER SIDE PRESSURE DROP 1a IMPERIAL UNITS 1b SI UNITS ACDS 010 ACDS 020 ACDS 030 ACDS 040 ACDS 050 ACDS 060 ACDS 070 ACDS 080 ACDS 135 ACDS 150 ACDS 165 ACDS 180 ACDS 100 ACDS 120 ACDS...

Page 33: ...75 485 6 1 5 5 4 460 3 60 160 169 200 4 36 215 6 1 5 2 7 ACDS 080 208 230 3 60 381 405 450 2 2 75 94 485 560 6 2 7 2 460 3 60 184 196 225 2 2 36 46 215 260 6 2 3 4 ACDS 090 208 230 3 60 419 443 500 4...

Page 34: ...essed for 5 seconds together with PRG MUTE it allows you to enter the password and the configuration parameters having a Cxx type code 6 PRG Mute Button if pressed for 5 seconds it allows you to acces...

Page 35: ...Handling In the event of alarm condition press PRG mute key to silence the buzzer If pressed after the cause of alarm disappeared it resets any other alarm 6 Second Probe Display For NTC input version...

Page 36: ...limit C23 999 max probe 90 Alarms P25 Low temp alarm set point 99 P26 min probe 50 P26 High temp alarm set point P25 999 max probe 90 P27 Alarm hysteresis 0 1 99 2 2 P28 Alarm delay min 0 120 60 60 C...

Page 37: ...lues Turn off controller turn on again holding PRG mute key Er3 Alarm via external contact on digital input contact linked to digital input is open depends on C31 R depends on C29 C30 V manual Check C...

Page 38: ...hnician and Factory levels from left It can only be access depend on the password level The higher password can access the lower password level s setting and not vice versa 4 3 1 1 The fifteen polycar...

Page 39: ...nputs status press input status key The display is showing the data as follows Press down arrow key or input key to go to next screen The display is showing the data as follows Repeat the same steps t...

Page 40: ...n Repeat the same steps to go to other setpoints screen and perform setpoint modification 4 3 2 5 Clock key To read the current day time and date unit scheduling and ice cel mode scheduling optional p...

Page 41: ...unit of measurements In order to gain access to this button you must be authorized and log in at least as user level Press the user key and display is showing the data as follows Press down arrow key...

Page 42: ...nd use the up down arrow key to change the value and press enter key to confirm 4 3 5 4 To perform Sensor Calibration Press technician key to go to technician setpoints main menu and press enter key t...

Page 43: ...aced in computer control When a compressor is controlled manually it can be commanded to load hold or unload If safety limiting condition is active it will not accept a load command To place a compres...

Page 44: ...arrow key to move the cursor to the desired analog reading The display is showing the data as follows Press enter key to move the cursor to the Man Reading and use the up or down arrow key to change t...

Page 45: ...p profile Ramp rate and start point Ramp rate defines the length of time the unit takes to load from start point to full load Start point is the percent of full load at which the ramp begins The ramp...

Page 46: ...ressing the Reset Alarm button on the controller Standard setpoint is 58 psig 4 0BAR 4 3 6 11 Evaporator Freeze Shutoff If the leaving chilled water temperature drops below the freeze setpoint the con...

Page 47: ...tly reduced fan cycling and improved efficiency The two types of air cooled condenser control logic are explained as follows 1 Adaptive Individual Air cooled Condenser Control This type of control is...

Page 48: ...ing fan control logic These enhancement results in a control scheme that offers reduced fan cycling and improved efficiency Adaptive Control Logic automatically adjusts the fan cut in offset based upo...

Page 49: ...arm conditions d The lead lag selection determine the chiller operation sequence as follows Lead chiller selection Normal chillers operation sequence When DBLAN fails 1 1 2 3 on duty 4 5 6 standby 1 2...

Page 50: ...ill be disabled below 45 total capacity and so on until the load falls enough to shut off the lead chiller 9 Each unit in the network can monitor the operation of other units via DBLAN If the master u...

Page 51: ...oller must be connected to RX TX on the other controller the same is true for RX TX and GND 4 8 HARDWARE SETTINGS 4 8 1 ADDRESSING THE VISION 2020i CONTROLLER At the Vision 2020i terminal push simulta...

Page 52: ...ower right corner of the Vision 2020i terminal keyboard Hold them for at least 5 seconds The display will appears The first line is the address of the terminal display that you are using for first chi...

Page 53: ...er with address 3 and a terminal with address 32 will work with both 4 8 3 Vision 2020i Controller LED Status Vision 2020i controller have three LEDs between the J3 and J4 connectors for indicating ba...

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Page 88: ...closed filtered cycle Water side surfaces can foul from the water system A program of water treatment can slow the rate of fouling on heat transfer surfaces but not eliminate it 5 4 1 1 Freezing Prote...

Page 89: ...y to run compressor again Call authorized service representative to check for motor trouble Resetting these safety devices and repeated starting could turn a minor motor problem into a costly major mo...

Page 90: ...3320 5 131 0 55 0 28 2 194 4 18 0 27 8 100 9 695 7 32 0 0 0 242 3 1670 6 82 0 27 8 487 8 3363 3 132 0 55 6 29 2 201 3 17 0 27 2 102 9 709 5 33 0 0 6 246 0 1696 1 83 0 28 3 494 1 3406 7 133 0 56 1 30...

Page 91: ...fully and close in one full turn c Expansion valve clogged or inoperative Check superheat setting Check charge and thermo bulb 4 Restrict water flow to condenser by adjusting the water regulating val...

Page 92: ...EVAPORATOR WATER TEMPERATURE IN EVAPORATOR WATER TEMPERATURE OUT EVAPORATOR PRESSURE DROP ftwg kPa EVAPORATOR WATER FLOW gpm m hr CONDENSER AIR TEMPERATURE IN AMBIENT AC ONLY 1 ACTUAL VOLTAGE 2 COMPRE...

Page 93: ...Lot 5755 6 Kidamai Industrial Park Bukit Angkat 43000 Kajang Selangor Darul Ehsan Malaysia Tel 603 8733 9898 Fax 603 8739 5020 E Mail info dunham bush com my www dunham bush com Manufacturer reserves...

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