Printer Wiring; Fig 37 - Print Cable Chiller To Serial Printer - York YCAV0569 Installation Operation & Maintenance

Air-cooled screw liquid chillers
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A "serial" printer may be connected to the TB1 connec-
tor on the Chiller Logic Board for the purposes of log-
ging data and troubleshooting. Weightronix Imp-2600,
Seiko DPU-414, and Okidata Microline 184 printers or
equivalents may be used.
Printer designs change rapidly. The
user should use the printer manual
for the respective printer for set-up
and wiring.
FIG. 37 - PRINT CABLE - CHILLER TO SERIAL PRINTER
JOHNSON CONTROLS

PRINTER WIRING

OKIDATA MICROLINE 184
25 pin RS-232 (DB-25P)
CTS
11
RD
3
GND
7
SEIKO DPU-414
9 pin RS-232 (DB-9)
CTS
8
RD
3
GND
5
WEIGHTRONIX IMP-24, MODEL 2600
25 pin RS-232 (DB-25P)
CTS
5
RD
2
GND
7
Data from the chiller is transmitted at 1200 baud. Wir-
ing diagrams for cables are shown below:
TB1 Chiller Control Board
RS-232
DSR
TB1-2
TXD
TB1-3
GND
TB1-5
TB1 Chiller Control Board
DSR
TB1-2
TXD
TB1-3
GND
TB1-5
TB1 Chiller Control Board
DSR
TB1-2
TXD
TB1-3
GND
TB1-5
FORM 201.21-NM2 (616)
9 9
271

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