Figure 53: Printer To Microboard Electrical Connections - York YLAA0041 Installation Operation & Maintenance

Section 9: Service and troubleshooting
Assembly and wiring
Assemble and wire all components as shown in Figure
53. Strip the outside insulation back several inches and
individual wires about 3/8 in. (9.5 mm) to connect the
cable at the Microboard. Do not connect the shield at
the printer-end of the cable.
Chiller Microboard
TB3-3 TXD
TB3-2 CTS
TB3-5 GND
Shield (connect shield to Pin 5
of the connector.

Figure 53: Printer to microboard electrical connections

196
TB3
Obtaining a printout
To obtain a printout, press the PRINT key on the key-
pad and then press either the OPER DATA key or HIS-
TORY key.
Printer
2 RD
5 CTS
7 SG
Do not connect shield
at printer end.
Form 150.72-ICOM6
Issue date: 12/19/2023
LD12723
Johnson Controls