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Control Abbreviations — Fig. 67-69
ALE
— Chiller Alert
ALM
— Chiller Alarm
AUTO_DEM
— Demand Limit Input
AUTO_RES
— Auto Water Temp Reset
CHST_OUT
— Chiller Running (On/Off/Ready)
CHW_DP
— Chilled Water Pressure Difference
CHWP
— Chilled Water Pump
CHWP_V
— Chilled Water Pump (Variable)
CHWR
— Chilled Water Return
CHWS
— Chilled Water Supply
CDWP
— Condenser Water Pump
CDWP-V
— Condenser Water Pump (Variable)
CHWP
— Chilled Water Pump
CHWP_V
— Chilled Water Pump (Variable)
COND_EWP
— Entering Condenser Water Pressure
COND_FL
— Condenser Water Flow Measurement
COND_FS
— Condenser Water Flow Switch
COND_LWP
— Leaving Condenser Water Pressure
COND_P
— Condenser Pressure
CUS_ALE
— Customer Alert
DGT
— Compressor Discharge Temperature
DMP_CL
— Economizer Damper Valve Close
DMP_FC
— Damper Valve Feedback Fully Close
DMP_FO
— Damper Valve Feedback Fully Open
DMP_OP
— Economizer Damper Valve Open
ECDW
— Entering Condenser Water Temperature
ECON_P
— Economizer Pressure
ECW
— Entering Chilled Water Temperature
ERT
— Evaporator Refrigerant Temperature
EVAP_EWP
— Entering Evaporator Water Pressure
EVAP_FL
— Evaporator Water Flow Measurement
EVAP_LWP
— Leaving Evaporator Water Pressure
EVAP_P
— Evaporator Pressure
FS-SS
— Free Cooling Start Switch
GV1-ACT
— IGV1 Position Input
GV1_OUT
— IGV1 Control Signal
HDPV_OUT
— Head Pressure Output
HGBP_CL
— Hot Gas Bypass (HGBP) Valve Close
HGBP_FC
— Hot Gas Bypass Valve Feedback Fully Close
HGBP_FO
— Hot Gas Bypass Valve Feedback Fully Open
HGBP_OP
— Hot Gas Bypass Valve Open
HP_SW
— High Pressure Switch
ICE_CON
— Ice Build Contact
LCDW
— Leaving Condenser Water Temperature
LCW
— Leaving Chilled Water Temperature
Low Speed Motor End Bearing Temperature
MTRB1
—
(Thermistor/PT100)
Low Speed Compressor End Bearing
MTRB2
—
Temperature (Thermistor/PT100)
High Speed Motor End Bearing Temperature
MTRB3
—
(Thermistor/PT100)
High Speed Compressor End Bearing
MTRB4
—
Temperature (Thermistor/PT100)
MTRW1
— Motor Winding Temperature 1
MTRW2
— Motor Winding Temperature 2
MTRW3
— Motor Winding Temperature 3
OIL_HEAT
— Oil Heater On/Off
OIL_PUMP
— Oil Pump On/Off
OILP_DIS
— Oil Pump Discharge Pressure
OILP_SMP
— Oil Sump Pressure
OILT_SMP
— Oil Sump Temperature
REM_CON
— Remote Connect Input
REM_LOCK
— Chiller Lockout Input
REM_STP
— Remote Stop Lock
SAFETY
— Spare Safety
SHFT_DIS
— Bearing Shaft Displacement Switch
TFR_HIGH
— Tower Fan High
TFR_LOW
— Tower Fan Low
LEGEND FOR Fig. 67-69
Wiring Codes — Fig. 67-69
1C
—
2C
—
1CB
—
2CB
—
3FU1,2
—
3FU3,4
—
1R
—
1T
—
2T
—
3T
—
1TB
—
2TB
—
3TB
—
4TB
—
5TB
—
6TB
—
7TB
—
A01
—
A03
—
A04
—
A06
—
C11
—
E01
—
E03
—
E05
—
EC01
—
EC06
—
HMI
—
ISM
—
M01
—
M02
—
M03
—
MSP
—
SAIA
—
T01
—
T02
—
T03
—
T04
—
T05
—
T07
—
T08
—
T10
—
T11
—
Symbols — Fig. 67-69
104
Oil Heater Contactor
Oil Pump Contactor
Micro Circuit Breaker, Control Box
Micro Circuit Breaker, HMI
Transformer 1 Primary Fuse
Transformer 1 Secondary Fuse
Alarm Relay
Transformer 1
Transformer 2
Transformer 3
Terminal Block for Customer Power Connection
Terminal Block for Field Connection
Terminal Block for Customer Optional Connection
HMI Terminal Block Field CCN Connection
Terminal Block for Control Panel Internal Connection
Terminal Block for Guide Vane, HGBP and Damper Valve
Terminal Block for Guide Vane Actuator (220 v)
IGV/Stage 1 IGV
Discharge Gas Temperature Thermistor
High Pressure Switch
Bearing Displacement Switch
HGBP Valve Actuator
Evaporator Pressure Transducer
Leaving Chilled Water Temperature Thermistor
Evaporator Refrigerant Liquid Temperature Thermistor
Economizer Pressure Transducer
Damper Valve Actuator
Human Interface Panel
Integrated Starter Module
Motor Winding Temperature 1 (Thermistor/PT100)
Motor Winding Temperature 2 (Thermistor/PT100)
Motor Winding Temperature 3 (Thermistor/PT100)
Motor Starter Protection
SAIA Touch Screen and Main Board
Low Speed Motor End Bearing Temperature
(Thermistor/PT100)
Low Speed Compressor End Bearing Temperature (Thermistor/
PT100)
High Speed Motor End Bearing Temperature
(Thermistor/PT100)
High Speed Compressor End Bearing Temperature (Thermistor/
PT100)
Oil Sump Temperature Thermistor
Oil Sump Pressure Transducer
Oil Pump Discharge Pressure Transducer
Oil Heater
Oil Pump
Component Terminal
Conductor Male/Female Connector
Field Wiring
Optional Wiring
Component/Panel Enclosure
Terminal Block for Field Wiring
Terminal Block for Internal Connection
Wire Splice
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