ESIE17-08
|
Part 5. Appendix
5.2. Detailed information setting mode
R32 Sky-Air RZAG-M
15/11/18
|
Version 1.1
Page 117
When “low humidity appli 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
0.62
0.81
0.91
1.01
1.06
1.16
1.21
1.26
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
I
NFORMATION
• 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
