Table 6—Superheat Charging Table (SI)
OUTDOOR
TEMP
(°C)
EVAPORATOR ENTERING AIR TEMPERATURE (°C WB)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
13
5.0
6.7
7.8
9.4
11.1
11.9
12.8
14.4
16.1
17.8
19.4
20.6
22.2
23.3
25.0
16
3.9
5.6
6.7
8.3
10.0
10.8
11.7
13.3
15.0
16.7
18.3
20.0
21.1
22.2
23.9
18
–
3.3
5.6
7.2
8.9
9.7
10.6
11.7
13.3
15.0
16.7
18.3
20.0
21.1
22.8
21
–
–
3.9
5.6
7.2
8.1
8.9
10.6
11.7
13.3
15.0
16.7
18.3
20.0
21.7
24
–
–
–
3.3
5.0
5.8
6.7
8.3
10.0
11.7
7.8
15.6
17.2
18.9
20.6
27
–
–
–
–
2.8
3.6
4.4
6.7
8.3
10.0
11.7
13.9
15.6
17.2
19.4
29
–
–
–
–
–
–
–
4.4
6.1
8.3
10.6
12.2
14.4
16.7
18.3
32
–
–
–
–
–
–
–
2.8
5.0
7.2
8.9
11.1
13.3
15.0
17.2
35
–
–
–
–
–
–
–
–
3.3
5.6
7.8
10.0
12.2
13.9
16.1
38
–
–
–
–
–
–
–
–
–
4.4
6.7
8.3
11.1
12.8
15.0
41
–
–
–
–
–
–
–
–
–
2.8
5.0
7.2
9.4
12.2
14.4
43
–
–
–
–
–
–
–
–
–
–
3.3
6.1
8.3
11.1
13.9
46
–
–
–
–
–
–
–
–
–
–
–
4.4
7.8
10.0
12.8
Where a dash (–) appears, do not attempt to charge system under these conditions, or refrigerant slugging may occur. Charge must be weighed in.
NOTE: Superheat °C is at low-side service port.
Table 7—Required Suction-Line Temperature (Metric-°C)
SUPERHEAT
TEMP
(°C)
SUCTION PRESSURE AT SERVICE PORT (KPA)
424
443
463
483
503
524
546
568
591
0
1.7
2.8
3.9
5.0
6.1
7.2
8.3
9.4
10.6
1
2.8
3.9
5.0
6.1
7.2
8.3
9.4
10.6
11.7
2
3.9
5.0
6.1
7.2
8.3
9.4
10.6
11.7
12.8
3
5.0
6.1
7.2
8.3
9.4
10.6
11.7
12.8
13.9
4
6.1
7.2
8.3
9.4
10.6
11.7
12.8
13.9
15.0
6
7.2
8.3
9.4
10.6
11.7
12.8
13.9
15.0
16.1
7
8.3
9.4
10.6
11.7
12.8
13.9
15.0
16.1
17.2
8
9.4
10.6
11.7
12.8
13.9
15.0
16.1
17.2
18.3
9
10.6
11.7
12.8
13.9
15.0
16.1
17.2
18.3
19.4
10
11.7
12.8
13.9
15.0
16.1
17.2
18.3
19.4
20.6
11
12.8
13.9
15.0
16.1
17.2
18.3
19.4
20.6
21.7
12
13.9
15.0
16.1
17.2
18.3
19.4
20.6
21.7
22.8
13
15.0
16.1
17.2
18.3
19.4
20.6
21.7
22.8
23.9
14
16.1
17.2
18.3
19.4
20.6
21.7
22.8
23.9
25.0
15
16.7
17.8
18.9
20.0
21.1
22.2
23.3
24.4
25.6
16
17.2
18.3
19.4
20.6
21.7
22.8
23.9
25.0
26.1
17
18.3
19.4
20.6
21.7
22.8
23.9
25.0
26.1
27.2
18
19.4
20.6
21.7
22.8
23.9
25.0
26.1
27.2
28.3
19
20.6
21.7
22.8
23.9
25.0
26.1
27.2
28.3
29.4
20
21.7
22.8
23.9
25.0
26.1
27.2
28.3
29.4
30.6
21
22.8
23.9
25.0
26.1
27.2
28.3
29.4
30.6
31.7
22
23.9
25.0
26.1
27.2
28.3
29.4
30.6
31.7
32.8
10
→
Summary of Contents for 38TUA
Page 11: ...11...