York YLUA0248 Series, Installation Operation & Maintenance

Page: 155 / 158

JOHNSON CONTROLS
155
SECTION 10 – MAINTENANCE
FORM 150.73-NM2
ISSUE DATE: 09/07/2020
10
SERIAL COMMUNICATION BINARY INPUT DATA
This data can be read using a BACnet or Modbus network connection and can NOT be modified using this connec-
tion. The Modbus Register Address for these points is 1281 + BI #.
TABLE 40 - SERIAL COMMUNICATION BINARY INPUT DATA
BI BACNET NAME BINARY INPUT DESCRIPTION
1 S1_ALARM SYS 1 ALARM
2 S2_ALARM SYS 2 ALARM
3 EVAP_HTR EVAPORATOR HEATER STATUS
4 EVAP_PUMP EVAPORATOR PUMP STATUS
5 SI_C1_RUN SYS COMP 1 RUN
6 S2_C1_RUN SYS 2 COMP 1 RUN
7 S1_LLSV SYS 1 LIQUID LINE SOLENOID VALVE
8 S1_MODE_SV SYS 1 MODE SOLENOID VALVE (HP ONLY)
9 S1_HGBV SYS 1 HOT GAS BYPASS VALVE
10 S1_BHS BIVALENT HEAT SOURCE (HP ONLY)
11 S1_C2_RUN SYS 1 COMP 2 RUN
12 S2_C2_RUN SYS 2 COMP 2 RUN
13 S2_LLSV SYS 2 LIQUID LINE SOLENOID VALVE
14 S2_MODE_SV SYS 2 MODE SOLENOID VALVE (HP ONLY)
15 LEAD_SYS LEAD SYSTEM (0 = SYS 1, 1 = SYS 2)
16 S1_C3_RUN SYS 1 COMP 3 RUN
17 S2_C3_RUN SYS 2 COMP 3 RUN
18 CH_LIQ_TYPE CHILLED LIQUID TYPE (0 = WATER, 1 = GLYCOL)
19 AMB_MODE AMBIENT CONTROL MODE (O = STD AMB, 1 = LOW AMB)
20 CNTL_MODE_ LOCAL / REMOTE CONTROL MODE (0 = LOCAL, 1 = REMOTE)
21 DATA_UNIT UNITS (0 = IMPERIAL, 1 = SI)
22 AUTO_LL LEAD / LAG CONTROL MODE (0 = MANUAL, 1 = AUTO)