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3-COMP CHILLER CONTROLLER

INDEX

A. Introduction
B. Hardware Description
C. Control Actions
D. Control Board – LCD & LED
E. Description of Inputs / Outputs
F. Keypad
G. Regulation of Room Temperature
H Setting the parameters
I.   Technical Data 

Introduction

The “MEGA CHILL-3Comp”  is a three compressor chiller controller . This 
integrates all the required functions of the chiller.

It is very user friendly due to the LCD provided which gives all the parameters, 
messages, alarms etc on the display. In addition to the LCD there are LED’s 
provided for instant status on all controls in the system.

Содержание Mega Chill-3Comp

Страница 1: ...H Setting the parameters I Technical Data Introduction The MEGA CHILL 3Comp is a three compressor chiller controller This integrates all the required functions of the chiller It is very user friendly...

Страница 2: ...ISPLAY LCD The Liquid Crystal Display shows the values of the controlled parameters the selected set point the alarm thresholds and all other information concerning the controlled variables DISPLAY ty...

Страница 3: ...P O L1 OSS Oil Safety Switch OSS1 Single Phase Preventor Trip1 SPP1 High Pressure trip for the compressor2 HP2 Low Pressure Trip for the compressor2 LP2 Compressor Overload trip2 COMP O L2 OSS Oil Saf...

Страница 4: ...ode MUTE Press this key for 1 second to disable the buzzer and alarm relay RESET Press and hold this key for 4 seconds to reset HP LPand antifreeze alarms which have been set for MANUAL RESET incase P...

Страница 5: ...h parameter t1 Using UP DOWN key user can scroll all the parameters By pressing SEL key user can view and change respective parameter value Press PRG to store and exit from that particular parameter T...

Страница 6: ...ill not allow the set point to go below 300 C Also if the temperature reaches 300 C the display will show Lt Low Temp indicating that the temperature has gone below the range in this parameter and at...

Страница 7: ...this parameter is set at 10 seconds the system will activate the flow switch alarm only if the error persists for or more than 10 seconds In this manner a false alarm can be avoided during normal oper...

Страница 8: ...N 0 Unit3Inactive 1 Unit3 Active Incase of 0 system will not activate compressor1 and all its faults F 0 1 1 Flag 1 H7 Fault in standby It Enable Disable fault sensing in standby mode 0 Disable 1 Enab...

Страница 9: ...esistive All digital outputs are fused 5 Operating Temperature 5 0 C to 500 C 6 Operating Humidity max 80 non condensing 7 Mounting Panel mounting type 8 Fuse 1 5A 9 Power Source Transformer Rating In...

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