COMPRESSOR BOARD RELAT E D
CIRCUITS
Compressor Run Circuits
On call for compressor run the EPC
Compressor Controller Contacts energ i z i n g
the K2 Relay Coil.
When the Normally Open K2 Contacts close
the Compressor Motor Contactor Coil is ener-
gized.
If an electronic control other than EPC is
applied with Series Switchback, the K2
Circuit is not used. Normally Closed Contacts
from the controller are wired in series with the
low pressure control through terminal T4.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 • Printed in USA
ELECTRICAL Revised August 1, 1996
4 - 12
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