Air Source Screw Water Chiller Unit – Installation Operation and Maintenance Manual
5
1.3.8 Variable Capacity Adjustment, High Efficiency, and Energy Saving
The high-precision capacity control valve traces the unit’s load changes and adjusts the refrigerant volume.
The capacity adjustment can adopt four-step control mode (25%, 50%, 75%, and 100%) or stepless
adjustment (this function must be noted on the order), which saves operating cost for customers.
Capacity
output
Four-step capacity adjustment
Stepless capacity adjustment
Capacity
requirement
Capacity adjustment curve
Capacity adjustment diagram for compressor
