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SiUS28-902_a
Basic Control
Function
18
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]
[Heating operation]
RZQ18 · 24 · 30P
∗
Compressors may operate in a pattern other than those listed
in above tables subject to the operating conditions.
Controls compressor capacity to adjust Te to
achieve target value (TeS).
Te : Low pressure equivalent saturation temperature
(°F)
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
37.5
43
48
Controls compressor capacity to adjust Tc to
achieve target value (TcS).
Tc : High pressure equivalent saturation temperature
(°F)
Tc setting
TcS : Target Tc value
(Varies depending on Tc setting, operating
frequency, etc.)
L
M (Normal)
(factory
setting)
H
109.5
115
120
STEP
INV.
1
52Hz
2
57Hz
3
62Hz
4
68Hz
5
74Hz
6
81Hz
7
88Hz
8
96Hz
9
104Hz
10
110Hz
11
116Hz
12
124Hz
13
133Hz
14
143Hz
15
158Hz
16
165Hz
17
177Hz
Summary of Contents for SkyAir FCQ18PVJU
Page 1: ...Split System Air Conditioners SkyAir Inverter R 410A Heat Pump 60Hz P Series SiUS28 902_a...
Page 44: ...Other Control SiUS28 902_a 37 Function...
Page 81: ...SiUS28 902_a Troubleshooting by Remote Controller Troubleshooting 74...
Page 185: ...SiUS28 902 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 178...