Hussmann Super Plus, Руководство по обслуживанию, Страница: 8 / 147

Topics
Overview ....................................................4-1
Field Wiring ...............................................4-1
Wiring Guidelines Based on
Various Components ............................4-2
Using Schematics .......................................4-3
Alarm Board...............................................4-3
Compressor Controls..................................4-4
Compressor Circuit Boards ........................4-6
Compressor Board Related Circuit ..........4-12
Defrost Circuit Boards .............................4-22
Defrost Timer Motor ................................4-28
Defrost Control Circuits ...........................4-28
Other Controls ..........................................4-32
Power Monitor..........................................4-33
Tables
Required Field Wire Size ...........................4-2
Alarm Board Troubleshooting....................4-5
Compressor Board Troubleshooting
Mechanical ...........................................4-9
EPC.....................................................4-11
Defrost Board Troubleshooting
Mechanical Time Clock .....................4-25
Fibertronic Time Clock ......................4-27
Figures
Alarm Board Circuits .................................4-3
Alarm Board...............................................4-4
Compressor Board Faceplate .....................4-6
Compressor Circuit Board Connections.....4-7
Compressor Board – Mechanical
Low Pressure Control...........................4-8
Compressor Board – EPC Control ..........4-10
K2 and Motor Contactor Circuits.............4-12
K1 and Compressor Alarm Circuits................4-13
Parallel Switchback Controls ...................4-14
Series Switchback Controls......................4-15
Switchback Controls ................................4-16
Koolgas and Interlock Relays ..................4-17
Compressor Protection .............................4-18
Carlyle Internally Compounded
Compressor Protection .......................4-19
Head Cooling Fan and
Demand Cooling ................................4-20
Circuits Parallel to the Compressor
Motor Contactor Coil .........................4-21
Branch Board Faceplate ...........................4-22
Defrost Board Inputs and Outputs............4-23
Defrost Board Mechanical Timer.............4-24
Defrost Board Electronic Timer ...............4-26
Defrost Control Circuit.............................4-28
Suction Stop Koolgas Defrost ..................4-29
Electric Defrost ........................................4-30
Off Cycle Defrost .....................................4-31
Refrigeration Thermostat w/ Header
Mounted Solenoid ..............................4-32
Wiring Defrost Termination
Thermostats ........................................4-32
Power Monitor and Slave Contactor ........4-33
Electrical Hookup.....................................4-33
Revised August 1, 1996 P/N 340272A
CONTENTS