Daikin ERQ - 4.2 Low Pressure Protection Control

Basic Control ESIE09-05
24 Function
2.2 Compressor PI Control
2.2.1 For Z-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]
[Heating operation]
2.2.2 For X-, Y-Control
For T
e
, T
c
: see field settings
2.2.3 Frequencies ERQ 100/125/140
Controls compressor capacity to adjust Te to
achieve target value (TeS).
Te : Low pressure equivalent saturation temperature
(°C)
Te setting (Set in Set-up mode 2) TeS : Target Te value
(Varies depending on Te setting, operating
frequency, etc.)
L M (Normal)
(factory
setting)
H
369
Controls compressor capacity to adjust Tc to
achieve target value (TcS).
Tc : High pressure equivalent saturation temperature
(°C)
Tc setting TcS : Target Tc value
(Varies depending on Tc setting, operating
frequency, etc.)
L M (Normal)
(factory
setting)
H
43 46 49
STn INV(Fullload) INV(Unload) STn INV(Fullload) INV(Unload) STn INV(Fullload) INV(Unload)
1 36.0Hz 11 80.0Hz 21 140.0Hz
2 39.0Hz 12 86.0Hz 22 146.0Hz
3 43.0Hz 13 92.0Hz 23 152.0Hz
4 47.0Hz 14 98.0Hz 24 158.0Hz
5 52.0Hz 15 104.0Hz 25 164.0Hz
6 52.0Hz 57.0Hz 16 110.0Hz 26 170.0Hz
7 57.0Hz 64.0Hz 17 116.0Hz 27 175.0Hz
8 62.0Hz 71.0Hz 18 122.0Hz 28 180.0Hz
9 68.0Hz 78.0Hz 19 128.0Hz 29 185.0Hz
10 74.0Hz 20 134.0Hz 30 190.0Hz
31 195.0Hz
∗ Compressors may operate in a pattern other than those listed in above tables subject to the operating conditions.
Selection of full load operation to/from unload operation is made with the unload circuit solenoid valve
(Y3S=SVUL). The full load operation is performed with the SVUL set to OFF, while the unload operation is
performed with the SVUL set to ON.
Все каталоги и инструкции здесь: http://splitoff.ru/tehn-doc.html