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105
SECTION 6 - I/O BOARD
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
JCI COMPANY CONFIDENTIAL
6
K13
K14
K15
K16
K17
K18
COMPRESSOR MOTOR
STARTER (START)
NOT USED (style D and later chillers)
HIGH SPEED THRUST
SOLENOID (style C and earlier chillers)
OIL HEATER ON/OFF (STYLE D/E - ALL
COMPRESSORS EXCEPT "P") LIQUID
LINE SOLENOID (style C and earlier chillers)
COMPRESSOR MOTOR
STARTER (STOP)
CONDENSER MOTOR PUMP STARTER
(All starter applications except
Mod "B" Solid State Starter)
37
36
35
34
J1
K15
K17
K16
TB1-34
TB2-164
TB1-1
TB1-62
TB1-1
TB1-33
TB1-2
TB5-23
TB2-36
TB2-35
TB5-22
TB5-25
K18
K18
K18
RUN STATUS
PRV
ACTUATOR
FIELD
115VAC
OPEN
CLOSE
X
L1
L2
TB1-3
TB1-58
TB1-59
1
2
2
1
G
G
TRIAC
DRIVER
TRIAC
DRIVER
J1-33
J1-32
PRV OPEN
PRV CLOSE
3
2
COMPRESSOR MOTOR
STARTER
115VAC NEUTRAL
Q2
Q1
K13
K18
K14
TB1-6
TB1-16
16
1
53
CM/TM
(NOTE 2)
TO I/O
BOARD J2-1
TO I/O
BOARD TB3-32
START
RUN
STOP
1
HP
(Not applicable to "P" compressors or style F and later chillers)(See Note 3)
(See inset below for all others)
K13
K18
K14
TB1-6
TB1-16
16
15
1
53
CM/TM
(NOTE 2)
TO I/O
BOARD J2-1
START
RUN
STOP
(Chillers equipped with "P" compressors and all
style "F" and later chillers) (See Note 3)
NOT USED
COMPRESSOR
MOTOR STARTER
115 VAC
HP
TB3-32
FIGURE 37
- J1 I/O BOARD DIGITAL OUTPUTS (CONT'D)
LD09043
NOTES:
1. – – – – – – – indicates wiring external to I/O Board.
2. CM – Contacts of relay K1 on Current Module (EM Starter Applications) or Solid State Starter Logic
Board (Solid State Starter Applications) or VSD Logic Board (Compressor Motor Variable Speed
Drive Applications).
3. Chillers equipped with P compressors and all style "F" and later chillers use a different High Pres-
sure (HP) Switch and associated interface than other compressor applications.