P2
connects to the contactor, supplying output to
the contactor coil and receiving input from the
compressor auxiliary contacts. Pin numbers run
right (P2,1) to left (P2,5).
P1
connects to the compressor harness, providing
input to the board from the oil failure, high pres-
sure, and low pressure controls. Pin numbers run
right (P1,1) to left (P1,8).
Fuse 1
provides overload protection.
T10
and
T9
provide input to the board from
Koolgas or Interlock contacts.
T3
provides power to the K2 Relay Circuit.
T1
and
T2
provide input to the board from EPC
compressor contacts for the K2 Relay.
T5
and
T6
provide output to the Alarm Board
Compressor Relay.
T8
provides common for all board circuits.
T4
is the power input from a switchback control
contact.
T7
is the power input during normal operation
when the EPC is in control.
HUSSM ANN CORPORATION • BRIDGETON, M O 63044-2483 • Printed in USA
5
3 2 1
7 6 5 4 3 2 1
P2
P1
T10
T9
T3 AUTO
T1 ECC1
T2 ECC2
T5
T6
T8 X2
T4 SWBK
T7 X1
ALM
K1
B
A
8
K2
FUSE1
ALM
K2
Relay
K1
Relay
September 1, 1997
P/N 401789
4 - 7
Figure 4-4 — Compressor Circuit Board Connections
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