Daikin SA R32 Sky-Air RZAG-L - Defrost Operation

ESIE16-03B | Part 5. Appendix 5.2. Detailed information setting mode
SA R32 Sky-Air RZAG-L
Page 112 22/08/16 | Version 1.1
When “low humidity application + freeze up operation prevention” is selected. Field setting 16(26)-2-04:
5.2.3.4. Defrost Operation
When in heating mode, a defrost operation will be conducted in order to avoid ice formation on the outdoor unit heat exchanger.
Starting conditions
Defrost will start when the following conditions have been realized:
Defrost conditions
Defrost upper limit A
Depending on the defrost start setting (field setting mode of the indoor unit remote controller), frost upper limit time A becomes as shown in the table below.
5 0.620.810.911.011.061.161.211.26
10 0.62 0.81 0.91 1.01 1.06 1.16 1.21 1.26
15 0.62 0.81 0.91 1.01 1.12 1.14 1.19 1.24
20 0.62 0.81 0.91 1.07 1.10 1.12 1.16 1.21
25 0.62 0.81 0.91 1.05 1.07 1.09 1.13 1.18
30 0.61 0.81 0.91 1.01 1.04 1.06 1.10 1.14
35 0.61 0.81 0.94 0.98
1.00 1.02 1.06 1.11
40 0.61 0.81 0.90 0.94 0.96 0.98 1.02 1.06
Outdoor
Temp.
(°C-DB)
Indoor Temp. (°C-WB)
11 14 16 18 19 20 22 24
Capacity (% of standard point)
-15 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.26
-10 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.26
-5 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.26
0 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.26
5 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.26
10 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.26
15 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.24
20 0.51 0.68 0.78 0.95 1.01 1.06 1.16 1.21
25 0.51 0.68 0.78 0.95 1.00 1.06 1.13 1.18
30 0.51 0.68 0.78 0.95 1.00 1.05 1.10 1.14
35 0.51 0.68 0.78 0.95
1.00 1.02 1.06 1.11
40 0.51 0.67 0.78 0.94 0.96 0.98 1.02 1.06
INFORMATION
• Operation range on indoor side expanded from minimum 12°CWB to 11°CWB when using LH setting.
• Do not use a setpoint below 20°C to avoid operation out of the indoor operation range (11°CWB).
• Be sure to set the indoor fan to high speed.
& • Integrated compressor running time is 25 minutes or more since the completion of the previous defrost operation.
OR • Defrost upper limit time A is met.
• Outdoor unit heat exchanger temperature is within the defrost request area.
When quick defrost starting is set Factory setting When slow defrost starting is set
Outdoor air temperature > -5°C 40 minutes 2 hours 6 hours
Outdoor air temperature ≤ -5°C 40 minutes 6 hours 8 hours
Outdoor
Temp.
(°C-DB)
Indoor Temp. (°C-WB)
11 14 16 18 19 20 22 24
Capacity (% of standard point)
-20 -15 -10
5
0
-3
-5
-6
-10
-7
-15
-20
-23
-17
-10
-7
-4
-7
-5
-5
-8
-13
-16
-19
-21
-12
-9
-6
-24
-27
-28
-14
-11
-8
-8
-2
-25
-30
15
5
2
-1
-4
-1
-11
10
Defrost permit
area
Factory setting (Request)
Factory setting (permit)
When slightly quick defrost starting is set (Request)
When slightly slow defrost starting is set (Permit)
Outdoor unit heat exchanger temperature (°C)
When slightly quick defrost starting is set (Permit)
Outdoor temperature (°C)
When slightly slow defrost starting is set (Request)
Defrost request
area