Technical data

PowerFlex 700L Technical Data
Publication 20L-TD001A 43
Chiller
The chiller utilizes refrigerant to transfer heat from a liquid to air. This is a simple closed loop system — it does not
require a water supply from the user. A chiller can achieve almost any coolant temperature required. Coolant temperature
should be at or above ambient temperature to avoid condensation on drive components.
The drawing below shows a cooling loop diagram for a typical chiller.
The main components of the chiller cooling loop include:
Part Description
Compressor Forces the refrigerant into a smaller space.
Fan Blows air across the condenser/subcooler.
Condenser/Subcooler Cools the refrigerant.
Filter-Drier Filters the refrigerant.
Sight Glass Allows viewing of the level of drive coolant in the reservoir.
Thermostatic Expansion Valve Allows for expansion of the refrigerant.
Level Switch Senses the level of coolant in the reservoir.
Reservoir Allows for expansion of coolant.
Pump and Motor Circulates drive coolant.
Drive Coolant Temperature Sensor Senses the drive coolant temperature used for the dew point control.
Drive Coolant Flow Switch Measures the drive coolant flow rate.
Ambient Sensor Senses the ambient temperature used for the dew point control.
PowerFlex 700L
Drive
Inlet
Flow
Indicator
Drive
Outlet
Hose Kit
= hose or pipe connection
To
Drive
Inlet
Radiator
From
Drive
Outlet
Chiller
Drive
Out
In
Reservoir
Pump
Condenser/Subcooler
Fan
Compressor
SOL
LS
TE FS
TE
Ambient
Sensor
Sight Glass
Thermostatic
Expansion Valve
Filter-Drier
Drive Coolant
Temperature
Flow
Switch
Level
Switch