![background image](http://html1.mh-extra.com/html/daikin/sky-air-b-series-r-410a/sky-air-b-series-r-410a_service-manual_2460071106.webp)
Si21-205
Outdoor Unit (25/35 class)
Function and Control
95
3. The set of a constant
DOA1CG, DOA2CG, DOA3CG, FCG7 and FCG8 have constants for Cooling / Heating
separately and these constants are distinguished with a suffix c/w.
4. Actual constant
∗
DOA : Outdoor air temperature
CGC : Compressor guard for cooling
CGW : Compressor guard for heating
FCG : Frequency guard for compressor protection
∗
Common setting for 25/35 class
2.11 Moisture Protection Function 2
Outline
In order to obtain the dependability of the compressor, the compressor must be stopped
according to the conditions of the temperature of the outdoor air and outdoor heat exchanger.
Detail
Operation stop depending on the outdoor air temperature
Compressor operation turns OFF under the conditions that the system is in cooling operation
and outdoor air temperature is below –10˚C.
Cooling
Heating
DOA1CGC
18˚C
DOA1CGW
0˚C
DOA2CGC
19˚C
DOA2CGW
2˚C
DOA3CGC
0˚C
DOA3CGW
-4˚C
DOA4CGC
1˚C
DOA4CGW
-2˚C
FCG7C
44 Hz
FCG7W
37 Hz
FCG8C
54 Hz
FCG8W
52 Hz
FCG8
The lower
frequency limit.
Cancelled
FCG7
FCG7
Cancelled
DOA3CG
DOA4CG
DOA1CG
DOA2CG
Outdoor temperature
(R1044)
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...