Hussmann Super Plus - Page 83

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HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 • Printed in USA

MECHANICAL DEFROST TIMERS Revised August 1, 1996

6 - 4

Main Page

Table of Contents5
Overview15
Super Plus™ Components15
Super Plus™ System15
Shipping Damage16
Super Plus™ Frame Dimensions16
System Weights16
Receiver Refrigerant Capacities16
Machine Room Requirements17
Unit Placement18
Allowable Distances18
Lifting and Leveling19
Lifting and Leveling the Super Plus19
Setting Without a Crane20
Dolly Placement20
Overview21
Subcooling21
Main Liquid Line Pressure Differential Valve23
- 3-Way Valve23
Flooding Valve24
Basic Refrigeration Cycle24
Heat Reclaim Cycle26
Receiver Pressure and Vapor Temperature Regulation26
Koolgas Defrost Cycle27
EPR Valve27
Turba-Shed28
Autosurge for Ambient Subcooling29
Mechanical Subcooling30
Demand Cooling31
Overview32
Refrigeration Line Runs32
Super Plus™ Refrigeration System32
P-Trap Construction33
Reduced Riser33
Rack to Condenser Piping34
Rack to Remote Header37
Rack to Remote Satellite37
Offset Tee Construction37
Rack to Heat Reclaim38
Offset and Expansion Loop Construction38
L" Values38
Special Piping for Open Rooms39
Connecting Parallel 3-Way Valves39
Run Lengths and Equivalent Feet39
Branch Line Piping40
Overview41
Field Wiring41
Wiring Guidelines Based on Various Components42
Using Schematics43
Alarm Board Circuits43
Alarm Board43
Alarm Board44
Compressor Controls44
Alarm Board Troubleshooting45
Compressor Circuit Boards46
Compressor Board Related Circuit52
- Epc52
Compressor Protection58
Carlyle Internally Compounded58
Head Cooling Fan and Demand Cooling60
Circuits Parallel to the Compressor61
- Motor Contactor Coil61
Defrost Circuit Boards62
Defrost Control Circuits62
Liquid Branch Solenoid Valve63
Fibertronic Time Clock67
Branch Board Faceplate67
Defrost Timer Motor68
Defrost Control Circuit68
Suction Stop Koolgas Defrost69
Electric Defrost70
Off Cycle Defrost71
Other Controls72
- Thermostats72
Power Monitor73
Overview74
Remote Condensers74
Remote Satellite74
Lifting the Condenser75
- Satellite Rigging and Lifting79
- Remote Satellite79
Overview80
Precision Defrost Timer80
Proper Installation80
Paragon Defrost Timer80
Setting Precision Timer81
Paragon Defrost Timer84
Paragon Program Module85
Overview88
EPR Valve88
Koolgas Valve89
Troubleshooting EPR Valves89
Troubleshooting Koolgas Valves90
Way Solenoid Valve90
Main Liquid Line Solenoid91
Alco Main Liquid Line Solenoid92
Branch Liquid Line Solenoid Valves93
Troubleshooting Branch Liquid Line Solenoid Valves93
Tev94
Heat Reclaim Valve96
Flooding Valve and Receiver Pressure97
- Regulating Valve97
Flooding Va Lve and Receiver Pressure Regulating Va Lv E97
Troubleshooting Receiver Pressure Regulator98
Autosurge and By-Pass Valves99
Mechanical Subcooling102
- Subcooler102
Demand Cooling104
Demand Cooling Components104
Demand Cooling Piping104
Oil System107
Oil Pressure Differential Valve107
Sporlan Oil Level Regulator108
AC & R Oil Level Regulator108
- Control109
Pressure Settings109
Plate Subcooling Controls109
Shell and Tube Subcooling Controls109
Compound Rack, Additional Settings109
EPR Settings110
Winter Condensing Pressure Controls110
Mechanical Low Pressure Controls110
Alco110
- Alco111
Others112
Merchandiser Settings117
Startup128
- Leak Testing128
- Test Charge128
- Oil Levels129
- Evacuation129
- Charging130
- Final Checks131
Branch Liquid Line Solenoid128
Maintenance132
- Compressor Replacement132
- Cleaning the Turba-Shed133
- Replacing Drier and Filter Cores133

Hussmann Super Plus - Page 83

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