56
Installation and Commissioning Guide
Hercules Package Unit
Installation and Commissioning Guide - Hercules Package Unit
Doc. No.0525-021
Ver. 21 221110
21. Sensors Detail
Temperature Sensors
Description
Location
Type
Compressor 1
Suction Temperature Sensor
Compressor 1
Suction line
NTC
Compressor 2
Suction Temperature Sensor
Compressor 2
Suction line
NTC
Compressor 1
Discharge Temp. Sensor
Compressor 1
Discharge line
PT100
Compressor 2
Discharge Temp. Sensor
Compressor 2
Discharge line
PT100
Outdoor Coil 1
Temperature Sensor
Last return bend of
Top Coil system 1
NTC
Outdoor Coil 2
Temperature Sensor
Last Return Bend of
Top Coil system 2
NTC
Supply Air
Temperature Sensor
Indoor Fan outlet
NTC
Return Air
Temperature Sensor
Return Air side before Filter
NTC
Ambient Air
Temperature Sensor
Outdoor Coil System 2
Air Inlet side
NTC
Pressure Sensors (Refrigeration side)
Description
Location
Type
Compressor 1
High Pressure Sensor
Compressor 1
Discharge Line
Transducer
Compressor 2
High Pressure Sensor
Compressor 2
Discharge Line
Transducer
Compressor 1
Low Pressure Sensor
Compressor 1
Suction Line
Transducer
Compressor 2
Low Pressure Sensor
Compressor 2
Suction Line
Transducer
Pressure Sensors (Air side)
Description
Location
Type
Supply Fan
Pressure Sensor
Indoor Fan Supply Air side
(Taking reading between Fan
Inlet and Inlet ring of the Fan)
Differential Pressure
Sensor
Filter Differential
Pressure Sensor
Before Filter on the Return Air
side (Taking reading between
Filter Inlet and Outlet)
Differential Pressure
Sensor
Switches
Description
Location
Type
Compressor 1
High Pressure Switch
Compressor 1
Discharge Line
Pressure Switch
Compressor 2
High Pressure Switch
Compressor 2
Discharge Line
Pressure Switch
Compressor 1
Low Pressure Switch
Compressor 1
Suction Line
Pressure Switch
Compressor 2
Low Pressure Switch
Compressor 2
Suction Line
Pressure Switch