Compressor Pi Control - Daikin RXYQ72 Serivce Manual

Basic Control
2.2

Compressor PI Control

Compressor PI Control

Carries out the compressor capacity PI control to maintain Te at constant during cooling operation
and Tc at constant during heating operation to ensure stable unit performance.
[Cooling operation]
Controls compressor capacity to adjust Te to
achieve target value (TeS).
Te setting
[Heating operation]
Controls compressor capacity to adjust Tc to
achieve target value (TcS).
Tc setting
34
L M (Normal)
(factory setting)
37.5 43
L M (Normal)
(factory setting)
109.5 115
Te : Low pressure equivalent saturation temperature
(°F)
TeS : Target Te value
(Varies depending on Te setting, operating
H
frequency, etc.)
48
Tc : High pressure equivalent saturation temperature
(°F)
TcS : Target Tc value
(Varies depending on Tc setting, operating
H
frequency, etc.)
120
SiUS39-601
Function