York YCAL0080SC Manuale Utente

YORK INTERNATIONAL

FORM 150.62-NM1

*

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 46 – MICROBOARD OUTPUTS

SYSTEM 1 COMPRESSOR 1

SYS 1 LIQUID LINE SOLENOID VALVE

SYSTEM 1 COMPRESSOR 2

SYSTEM 1 COMPRESSOR 3

SYSTEM 1 HOT GAS BYPASS VALVE

SYSTEM 2 COMPRESSOR 1

SYS 2 LIQUID LINE SOLENOID VALVE

TB3-10 SYSTEM 2 COMPRESSOR 2

SYSTEM 2 COMPRESSOR 3

SYS 1 CONDENSER FAN STAGE 1

SYS 1 CONDENSER FAN STAGE 2

SYS 1 CONDENSER FAN STAGE 3

SYS 2 CONDENSER FAN STAGE 1

SYS 2 CONDENSER FAN STAGE 2

SYS 2 CONDENSER FAN STAGE 3

TB4-10 EVAPORATOR HEATER

SYSTEM 1 ALARM

SYSTEM 2 ALARM

EVAPORATOR PUMP STARTER

TABLE 44 – MICROBOARD BINARY INPUTS

*J9-1 30VDC UNREGULATED SUPPLY

UNIT ON/OFF SWITCH

PWM TEMP RESET

OR LOAD LIMIT STAGE 2 ON 3 & 6 COMP UNITS

LOAD LIMIT STAGE 1

FLOW SWITCH AND REMOTE START / STOP

(SYS 1 ZONE THERMOSTAT - YCUL ONLY)

SYSTEM 2 ZONE THERMOSTAT - YCUL ONLY

SINGLE SYSTEM SELECT

(JUMPER = SINGLE SYS, NO JUMPER=TWO

SYS)

CR1 (SYS 1 MOTOR PROTECTOR / HIGH

PRESS CUTOUT)

CR2 (SYS 2 MOTOR PROTECTOR / HIGH

PRESS CUTOUT)

TABLE 45 – MICROBOARD ANALOG INPUTS

J4-10 Sys 1 Suction 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

Ambient Air Temperature Sensor

Leaving Chilled Liquid Temperature Sensor

Return Chilled Liquid Temperature Sensor

                              or

Discharge Air Temp Sensor - YCUL Only

Sys 2 Suct Press Transducer

                or

Sys 2 Low Press  Switch

J7-11 SPARE

J7-12 Sys 2 Discharge Pressure Transducer (optional)

Sys 1 Ground Fault Circuit

Sys 2 Ground Fault Circuit