Sub-Zero Mega Chill User Manual Download Page 4

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2.1  Mega Chill User Interface

Mega Chill User Interface is a user friendly board which integrates all 
controller keys, display LCD and display LEDs.

   3. Hardware

The LCD screen shows description 
of  the  controller  parameters,  and 
any  other  information  concerning 
the controlled variables.

Liquid Crystal Display (LCD)

Display

 2 rows X 16 characters

Liquid Crystal Display (LCD)

Character Size

 5.56 X 2.96 mm

  

displayed as Red, Yellow, Blue.

 

Faults  -  Red  blinking  LED   

 

ALERT Indicates that there is a 

 

fault.

There  are  21  LED  indications  on 
the chiller front panel indicating :

Light Emitting Diodes (LED)

 

Device OK status - Green LED 

 

indicates that the device is OK.

 

Individual  device  fault  -  Red   

 

LED  indicates  that  there  is  a   

 

fault in that particular device.

 

Phases - all 3 phases are  

         

Light Emitting Diodes (LED)

2.  Accessaries in Box

1. Transformer
2. Sensor 2No.
3. Liquid Sensor 3No.
4. Catalogue
5. Prokey
6. Fitting Screw

Summary of Contents for Mega Chill

Page 1: ...COMPRESSOR ON MED LIQUID LEVEL 0 29 5 C R R Navi Mumbai India 91 22 27782005 91 2227782008 info pvrcontrols com www pvrcontrols com Tel Fax E mail Web...

Page 2: ...ut Board 6 2 5 Transformer 7 2 6 Dimensions 8 2 7 Connections 9 3 1 Description Inputs Outputs 11 3 Operations 11 3 4 Water Pump 15 3 3 How to Turn On Off the Chiller 14 3 5 Water Temperature 15 2 Har...

Page 3: ...r It is a complete independent rugged and highly reliable unit It is one of the most efficient chiller controller of it s kind in the country with the kind of features it provides 1 1 Main Features WA...

Page 4: ...Liquid Crystal Display LCD Character Size 5 56 X 2 96 mm displayed as Red Yellow Blue Faults Red blinking LED ALERT Indicates that there is a fault There are 21 LED indications on the chiller front pa...

Page 5: ...erminals for power source On this board you can locate 10Vac yellow 9 Vac red 2 3 Sensors Japanese NTC thermistors housed in a water proof I P 68 metal casing Prokey Transformer 2 4 Prokey Custom made...

Page 6: ...mensions in mm Input Output Board Mega Chill User Interface 2 6 Dimensions 167 45 124 160 205 178 163 119 134 8 2 7 Connections 6 way telephone cable Chiller Interface Terminal for panel mounting 9 5...

Page 7: ...Switch 4 AFT AntifreezeThermostat External 5 Compressor Overload 6 Pump Overload Switch 11 EWFS Evaporator Water Flow Switch 9 S P P S i n g l e P h a s e Preventor 14 Y YPhase 12 Bitzer Comp O L 16 M...

Page 8: ...UMP DOWN for 4 seconds forces a manual pump Down cycle 7 PRG SEL UP DOWN Used to enter and navigate in programming mode Pressing Mute Clear for 4 seconds will reset all alarms that have been set for M...

Page 9: ...the Set point is 2 C the compressor will switch off at 0 0 0 7 C and restart at 9 C 7 2 9 C Press and hold the START key for 4 sec the unit will change from standby to working status Unit can only be...

Page 10: ...g e compressors have springs on intake After the system has cooled the evaporator sufficiently a solenoid valve closes in the liquid line and the compressor pumps refrigerant into the condenser or rec...

Page 11: ...display shows EP End Programming 5 Modify it s value with the UP and DOWN key 6 Press PRG to store the modified values and exit the procedure while SELallows you to return to the FACTORY parameters m...

Page 12: ...e Antifreeze Probe F 0 1 0 Flag 1 0 Deactivate Antifreeze Probe 1 Activate Antifreeze Probe 0 A1 Antifreeze Set Point for F 30 R1 4 C 1 AFT Probe Set Para Description MIN MAX Fac M U Var by 0 set poin...

Page 13: ...nactive 1 Active compressor cuts off and also perform every time the allows a manual pump down 0 Standby on power on 1 Auto Start on power on Set Para Description MIN MAX Fac M U Var by MUTE CLEAR sec...

Page 14: ...Min Cable Section Screw terminal relay board 2 0 5 mm 11 Max Cable Section Screw terminal relay board 2 2 5 mm 12 Fuse 1 5A 13 Transformer Torroidal type Primary Input 230Vac 50Hz Output Secondary 2...

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