Master Bilt Master Controller 2.0 - Default Chapter; Table of Contents

3
INTRODUCTION...................................................................................................................4
WARNING LABELS AND SAFETY INSTRUCTIONS...........................................................5
APPLICATIONS ....................................................................................................................5
MASTER CONTROLLER......................................................................................................6
Description .................................................................................................................6
Factory-Mounted Parts ...............................................................................................8
Features .....................................................................................................................9
Sequences of Operation...........................................................................................10
START UP .........................................................................................................10
OFF MODE .........................................................................................................10
COOL MODE ......................................................................................................10
DEFROST MODE .................................................................................................11
Scheduled Defrost ......................................................................................11
Demand Defrost ........................................................................................11
Manual Defrost ..........................................................................................12
COIL DRAIN MODE ...............................................................................................12
FAN DELAY MODE ...............................................................................................12
SAFETY MODE ....................................................................................................12
Multiple Evaporator Configuration ............................................................................13
BOND CONTROLLERS FROM FRONT PANEL ..............................................................13
PEER TO PEER MODE ..........................................................................................13
ALTERNATING MODE ...........................................................................................14
Definition of On-Board Symbols ...............................................................................14
STATUS, DEFAULT AND READING DISPLAY ...............................................................14
ALARM DISPLAY .................................................................................................17
Setting Parameters by On-Board Pushbuttons ........................................................17
Temperature Sensors...............................................................................................19
SENSOR SERVICE INSTRUCTIONS ..........................................................................19
Pressure Transducer ...............................................................................................20
Charging the Master Controller 2.0 Refrigeration System .......................................21
Technical Notes........................................................................................................22
REVERSE CYCLE DEFROST ...........................................................................................23
General Information..................................................................................................23
Advantages ..............................................................................................................23
Factory-Installed Parts..............................................................................................23
Eliminated Parts .......................................................................................................24
Defrost Time.............................................................................................................24
Charging a Master Controller 2.0 System Equipped with Reverse Cycle Defrost ...24
ELECTRIC WIRING ............................................................................................................24
TYPICAL WIRING DIAGRAMS ............................................................................................25
TYPICAL SET POINTS FOR CONTROLLER.....................................................................28
TROUBLESHOOTING GUIDE............................................................................................29
Troubleshooting Electric Expansion Valve ..............................................................30
MASTER-BILT PART NUMBERS .......................................................................................30