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4.0  ELECTRICAL 

 
 

4.2  IR32 ELECTRONIC THERMOSTAT FRONT PANEL 

 
 
 
 
 
 
 
 

 
1- Display: shows the value measured by the connected sensor. In the event of alarm condition the 

sensor value will be displayed alternately with the codes of the active alarms. When programming the 
instrument, the display shows the parameter codes being introduced and their values. 

2-  Decimal Point LED: lights up when the controlled parameter is displayed. 
3- Reverse LED: flashes when at least one relay working in the "Reverse" mode is active. The Led 

flashes as many times as the number of active 'reverse' relays. There is a two seconds' pause 
between a flashing stage and the next one. 

4-  Direct LED: flashes when at least one relay working in the "Direct" mode is active. Its working logic is 

the same as the "Reverse" LED. 

5-  SEL Button: displays and/or allows you to select the Set-point. If pressed 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 access the menu of the more frequently 

used parameters (having a "Pxx" type code). In the event of alarm condition, it silences the buzzer 
and, if pressed after the cause that determined the alarm has disappeared, it resets any other alarm. It 
completes the programming procedure storing all the values of the modified parameters. 

7- Button 

Δ

: increases the value of the set-point or that of any other selected parametel: 

8 - Button 

 : decreases the value of the set-point or that of any other selected parametel: In NTC input 

versions it can display the value of the second sensor (holding "Down" pressed while the display 
shows the value of the main sensor). 

Note: for Infrared Universal, Series models, please refer to the table at the end of the manual 

 

4.2.1  TYPICAL CONTROL SEQUENCE WITH 2 STAGE OPERATING 

THERMOSTAT AT 10°C RETURN WATER SETPOINT, 3.0°C DIFFERENTIAL 

 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 

Содержание ACDS

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

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

Страница 11: ...11 2 0 INSTALLATION ACDS 030...

Страница 12: ...12 2 0 INSTALLATION ACDS 040...

Страница 13: ...13 2 0 INSTALLATION ACDS 050 060 070...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

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

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

Страница 27: ...27 3 0 OPERATION ACDS 080 090 100 120...

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

Страница 29: ...29 3 0 OPERATION ACDS 165 180...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 54: ...54 4 0 ELECTRICAL 4 9 TYPICAL WIRING SCHEMATIC ACDS 010...

Страница 55: ...55 4 0 ELECTRICAL...

Страница 56: ...56 4 0 ELECTRICAL ACDS 020...

Страница 57: ...57 4 0 ELECTRICAL...

Страница 58: ...58 4 0 ELECTRICAL ACDS 030...

Страница 59: ...59 4 0 ELECTRICAL...

Страница 60: ...60 4 0 ELECTRICAL ACDS 040...

Страница 61: ...61 4 0 ELECTRICAL...

Страница 62: ...62 4 0 ELECTRICAL ACDS 050 060 070...

Страница 63: ...63 4 0 ELECTRICAL...

Страница 64: ...64 4 0 ELECTRICAL ACDS 080 90...

Страница 65: ...65 4 0 ELECTRICAL...

Страница 66: ...66 4 0 ELECTRICAL...

Страница 67: ...67 4 0 ELECTRICAL...

Страница 68: ...68 4 0 ELECTRICAL ACDS 100...

Страница 69: ...69 4 0 ELECTRICAL...

Страница 70: ...70 4 0 ELECTRICAL...

Страница 71: ...71 4 0 ELECTRICAL...

Страница 72: ...72 4 0 ELECTRICAL ACDS 120...

Страница 73: ...73 4 0 ELECTRICAL...

Страница 74: ...74 4 0 ELECTRICAL...

Страница 75: ...75 4 0 ELECTRICAL...

Страница 76: ...76 4 0 ELECTRICAL ACDS 135...

Страница 77: ...77 4 0 ELECTRICAL...

Страница 78: ...78 4 0 ELECTRICAL...

Страница 79: ...79 4 0 ELECTRICAL...

Страница 80: ...80 4 0 ELECTRICAL ACDS 150...

Страница 81: ...81 4 0 ELECTRICAL...

Страница 82: ...82 4 0 ELECTRICAL...

Страница 83: ...83 4 0 ELECTRICAL...

Страница 84: ...84 4 0 ELECTRICAL ACDS 165 180...

Страница 85: ...85 4 0 ELECTRICAL...

Страница 86: ...86 4 0 ELECTRICAL...

Страница 87: ...87 4 0 ELECTRICAL...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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