York YK-EP B User Manual

FORM 160.87-OM1
ISSUE DATE: 8/24/2018
JOHNSON CONTROLS
220
SECTION 5 - SERVICE
FIGURE 85 - MICROBOARD SERIAL DATA COMMUNICATION PORTS
MICRO
UART
COM 1
COM 4B
RS-232
PRINTER
4
3
5
2
7
6
1
8
J2
TX
RX
DTR
DSR
GTX
GRX
TX1 RX1
CR42 CR41
RG
CR36 CR39
RG
TX4 RX4
COM 3
RS-485
COM 5
RS-232
OPTO-COUPLE
1
2
3
4
5
6
1
2
3
4
5
6
J12
J15
TX
RX
COMMON
+24VDC
+12VDC
-12VDC
-
+
GND
TX3 RX3
TX5 RX5
CR15 CR38
RG
CR35
RG
CR43 CR44
RG
YORK PROTOCOL-
STYLE B LCSSS
VSD ADAPTIVE CAPACITY
CONTROL BOARD OR
HOT GAS BYPASS
HEAT RECOVERY
HEAD PRESSURE CONTROL
MOTOR MONITORING
LTC I/O BOARD
SC-EQ
Communication Card
RS-485
COM 2
1
2
3
4
J13
+12V
TX2 RX2
CR37 CR40
RG
GND
(-)
(+)
MODBUS PROTOCOL
-
MV VSD, MV SSS, VSD,
STYLE B LCSSS
PRIMARY MOTOR CONTROLLER
RS-485
COM 6
1
2
3
4
TB2
+12V
TX6 RX6
CR46 CR48
RG
GND
(-)
(+)
MODBUS PROTOCOL
STYLE B LCSSS
ECONOMIZER MTR CONTROLLER
LD22061
GND

York YK-EP B Specifications

General

Brand	York
Model	YK-EP B
Category	Chiller
Language	English