Sub-Zero MEGACHILL PRO User Manual
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Sub-Zero MEGACHILL PRO User Manual

Sub-Zero MEGACHILL PRO User Manual

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MEGACHILL PRO
USER MANUAL
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www.pvrcontrols.com

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Summary of Contents for Sub-Zero MEGACHILL PRO

  • Page 1 MEGACHILL PRO USER MANUAL www.pvrcontrols.com...

  • Page 2: Hardware Description

    INTRODUCTION INDEX The "MEGA CHILL PRO" is a two compressor chiller Accessories in Box controller . It can be used as a single compressor chiller controller by just Caution for your Safety some parameter settings. This controller integrates all the required Dimensions functions of the chiller.
  • Page 3 ACCESSORIES IN BOX CAUTION FOR YOUR SAFETY Controller should be installed in a place protected by vibration, water Items Included and corrosive gases and where ambient temperature does not exceed the values specified in the technical data. ITEMS Probe : To give correct reading, the probe must be installed in a place protected from thermal influences, which may affect the temperature to be controlled.

  • Page 4: Dimensions & Panel Cutout

    DIMENSIONS & PANEL CUTOUT TECHNICAL DETAILS Housing : ABS Plastic (HMI). Side View Front View Dimensions : Front : 203.9x144.5mm, Depth : 33.8mm (HMI) 33.8mm +/-0.3mm 203.9mm +/-0.3mm I/O Board: 325x120mm Panel Cutout : 192 X 138mm (HMI) Mounting : Flush panel mounting with side clamps. Connections : Screw terminal blocks.

  • Page 5: Key Functions

    KEY FUNCTIONS Button Function Available in Used to select Parameter Parameter screen screen 2 Used to select Process Process display screen 1 Used to select Parameter Parameter screen display screen2 screen 3 Process display screen 1 Used to select Setting screen Used to select Parameter Parameter screen...

  • Page 6: User Interface

    USER INTERFACE PROCESS DISPLAY SCREEN 1 MENU SCREEN (Settings) This is the home page of Megachill Pro. It shows all four probe temperatures as Menu can be selected by using ‘Settings screen’ button available in well as Unit-1 & 2 set points. Fault if present will be displayed on the top of the Process display screen 1 &...

  • Page 7: Parameters Screen

    PARAMETERS SCREEN Example : The numeric value of Unit 1 set point can be changed as given.Other parameters value can be changed There are 5 Parameter screens with all the settable parameters required to be like this. set before process run. User must be logged to access these screens. For default values, select Factory Reset in Parameter screen 5 to Reset.

  • Page 8: Configuration Screen

    CONFIGURATION SCREEN ALARM LOG SCREEN In the main screen of Configuration two selections are given. One for This screen shows the logs of Alarms which are currently ON or have been Compressor timers and another for Sensor configuration. By selecting cleared.

  • Page 9: Parameter List

    PARAMETER LIST SYSTEM SETTINGS SCREEN PARAMETER SETTINGS This screen allows the user to set Time, Date and IP address of User Interface User defined values can be set to parameters by using the numerical or by the and edit the user privileges. selectable drop down as given against each parameter name present in the screens.
  • Page 10 Low Temperature alarm HP 1 Fault Reset Mode To set minimum allowable low temperature If set to Auto, alarm will be cleared Auto Manual Auto limit. If this parameter is set to -100C and automatically once the HP1 fault is cleared Mode Mode Mode...
  • Page 11 Compressor selection Compressor selection 2 Comp= Controller will work as Two 2 Comp= Controller will work as Two compressor chiller controller compressor chiller controller 2 Comp 1 Comp 1 Comp= Controller will work as Single 1 Comp= Controller will work as Single compressor chiller controller compressor chiller controller Comp Swap Selection...

  • Page 12: Troubleshooting

    EWFS Sense Logic HMI Touch Sound ON/OFF ON/OFF 0V= fault at 0V, 230V= fault at Disable volts volts 230V,Disable= disable fault sensing Factory Reset All parameters are set to Factory set RESET EWFS Alarm Delay values when RESETTING done. To set time delay for alarm against EWFS fault.

  • Page 13: Wiring Diagram

    WIRING DIAGRAM...
  • Page 14 WIRING DIAGRAM...
  • Page 15 WIRING DIAGRAM...

  • Page 16: Disclaimer & Warranty

    DISCLAIMER & WARRANTY Disclaimer: This manual & its contents remain the sole property of PVR CONTROLS, INDIA and shall not be reproduced or distributed without authorization. Although great care has been taken in the preparation of this OUR OTHER PRODUCTS document, the company or its vendors in no event will be liable for direct, indirect, special, incidental or consequential damage arising out of the use or inability to use the product or documentation, even if advised of the possibility of such...

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