Two Condenser Head Pressure II Module Technical Guide
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TABLE OF CONTENTS
OVERVIEW ................................................................................................................................................. 3
Module Overview .................................................................................................................................................... 4
Mounting and Wiring Considerations ...................................................................................................................... 5
INSTALLATION & WIRING ....................................................................................................................... 5
Stand-Alone Wiring ................................................................................................................................................. 6
E-BUS Controller to Two Condenser Head Pressure II Module Wiring .................................................................. 7
E-BUS Controller to Two Condenser Head Pressure II Module Wiring .................................................................. 8
Stand-Alone Input Commands ................................................................................................................................ 9
SEQUENCE OF OPERATION ................................................................................................................... 9
VCM-X Input Commands and Modes of Operation .............................................................................................. 10
OPTIONS Dip Switch Settings ...............................................................................................................................11
OPTIONS Dip Switch Settings .............................................................................................................................. 12
Head Pressure Module Valve / Fan Position Troubleshooting .............................................................................. 13
TROUBLESHOOTING ............................................................................................................................. 13
Troubleshooting for Stand-Alone Mode ................................................................................................................ 14
Pressure Transducer Troubleshooting and LEDs ................................................................................................. 15
LED Diagnostics ................................................................................................................................................... 16