Table of Contents
Advertisement
TABLE 26 – MICROBOARD BINARY INPUTS
*J9-1 30VDC UNREGULATED SUPPLY
J9-2
UNIT ON/OFF SWITCH
J9-3
PWM TEMP RESET
OR LOAD LIMIT STAGE 2 ON 3 & 6 COMP UNITS
J9-4
LOAD LIMIT STAGE 1
J9-5
FLOW SWITCH AND REMOTE START / STOP
(SYS 1 ZONE THERMOSTAT (YCUL ONLY)
J9-6
SYSTEM 2 ZONE THERMOSTAT (YCUL ONLY)
J9-7
SINGLE SYSTEM SELECT
(JUMPER = SINGLE SYS, NO JUMPER = TWO
SYS)
J9-8
CR1 (SYS 1 MOTOR PROTECTOR / HIGH
PRESS CUTOUT)
J9-9
CR2 (SYS 2 MOTOR PROTECTOR / HIGH
PRESS CUTOUT)
*
The 30 DC unregulated supply is not an input. This voltage
originates on the microboard and is used to supply the contacts
for the binary inputs.
TABLE 27 – MICROBOARD ANALOG INPUTS
J4-10
SYS 1 SUCT PRESS TRANSDUCER OR
SYS 1 LOW PRESS SWITCH
J4-11
SPARE
J4-12
SYS 1 DISCHARGE PRESSURE TRANSDUCER
(OPTIONAL)
J5-12
SYS 1 SUCTION TEMP SENSOR (YCUL OPTION)
J5-13
SYS 2 SUCTION TEMP SENSOR (YCUL OPTION)
J5-14
SPARE
J5-15
SPARE
J6-7
AMBIENT AIR TEMPERATURE SENSOR
J6-8
LEAVING CHILLED LIQUID TEMPERATURE SENSOR
RETURN CHILLED LIQUID TEMPERATURE SENSOR
OR
J6-9
DISCHARGE AIR TEMP SENSOR (YCUL ONLY)
SYS 2 SUCT PRESS TRANSDUCER
J7-10
OR SYS 2 LOW PRESS SWITCH
J7-11
SPARE
SYS 2 DISCHARGE PRESSURE TRANSDUCER
J7-12
(OPTIONAL)
J8-5
SYS 1 GROUND FAULT CIRCUIT
J8-6
SYS 2 GROUND FAULT CIRCUIT
YORK INTERNATIONAL
TABLE 28 – MICROBOARD OUTPUTS
TB3-2
SYSTEM 1 COMPRESSOR 1
TB3-3
SYS 1 LIQUID LINE SOLENOID VALVE
TB3-4
SYSTEM 1 COMPRESSOR 2
TB3-5
SYSTEM 1 COMPRESSOR 3
TB3-6
SYSTEM 1 HOT GAS BYPASS VALVE
TB3-8
SYSTEM 2 COMPRESSOR 1
TB3-9
SYS 2 LIQUID LINE SOLENOID VALVE
TB3-10 SYSTEM 2 COMPRESSOR 2
TB4-1
SYSTEM 2 COMPRESSOR 3
TB4-2
SYS 1 CONDENSER FAN STAGE 1
TB4-4
SYS 1 CONDENSER FAN STAGE 2
TB4-5
SYS 1 CONDENSER FAN STAGE 3
TB4-6
SYS 2 CONDENSER FAN STAGE 1
TB4-8
SYS 2 CONDENSER FAN STAGE 2
TB4-9
SYS 2 CONDENSER FAN STAGE 3
TB4-10 EVAPORATOR HEATER
TB5-1
SYSTEM 1 ALARM
TB5-2
SYSTEM 2 ALARM
TB5-3
EVAPORATOR PUMP STARTER
FORM 150.63-NM2
4
131
Advertisement
Table of Contents
