FOUR-WAY CEILING CASSETTE
Heating Capacity Tables
ARNU243TMA4, ARNU283TMA4, ARNU363TMA4, ARNU423TMC4
Table 53: ARNU243TMA4, ARNU283TMA4, ARNU363TMA4, ARNU423TMC4 Heating Capacity Table.
Outdoor Air Temp.
Model No. /
Capacity Index
°F DB
-4
0
5.0
10.0
15.0
20.0
25.0
ARNU243TMA4 /
30.0
24.2
35.0
40.0
45.0
47.0
50.0
55.0
60.0
-4
0
5.0
10.0
15.0
20.0
25.0
ARNU283TMA4 /
30.0
28.0
35.0
40.0
45.0
47.0
50.0
55.0
60.0
-4
0
5.0
10.0
15.0
20.0
25.0
ARNU363TMA4 /
30.0
36.2
35.0
40.0
45.0
47.0
50.0
55.0
60.0
-4
0
5.0
10.0
15.0
20.0
25.0
ARNU423TMC4 /
30.0
42.0
35.0
40.0
45.0
47.0
50.0
55.0
60.0
TC: Total Capacity (MBh).
The System Combination Ratio must be between 50–130%.
Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change without notice.
Current certified ratings are available at www.ahridirectory.org.
124 | FOUR-WAY
59
61
TC
TC
°F WB
MBh
MBh
-4.4
18.3
18.3
-0.4
18.8
18.8
4.5
21.3
21.0
9.0
22.1
22.1
14.0
23.5
23.5
19.0
24.8
24.8
23.0
25.9
25.9
28.0
26.5
26.5
32.0
27.3
27.3
36.0
28.4
28.4
41.0
29.5
29.5
43.0
30.6
30.3
46.0
32.8
31.4
51.0
33.4
31.7
56.0
33.4
31.7
-4.4
21.1
21.1
-0.4
21.7
21.7
4.5
24.6
24.3
9.0
25.5
25.5
14.0
27.1
27.1
19.0
28.7
28.7
23.0
29.9
29.9
28.0
30.6
30.6
32.0
31.5
31.5
36.0
32.8
32.8
41.0
34.0
34.0
43.0
35.3
35.0
46.0
37.9
36.2
51.0
38.5
36.5
56.0
38.5
36.5
-4.4
27.2
27.2
-0.4
28.0
28.0
4.5
31.7
31.3
9.0
32.9
32.9
14.0
34.9
34.9
19.0
36.9
36.9
23.0
38.6
38.6
28.0
39.4
39.4
32.0
40.6
40.6
36.0
42.2
42.2
41.0
43.8
43.8
43.0
45.5
45.1
46.0
48.8
46.7
51.0
49.7
47.1
56.0
49.7
47.1
-4.4
29.3
29.3
-0.4
30.2
30.2
4.5
34.2
33.7
9.0
35.5
35.5
14.0
37.7
37.7
19.0
39.9
39.9
23.0
41.6
41.6
28.0
42.5
42.5
32.0
43.8
43.8
36.0
45.6
45.6
41.0
47.3
47.3
43.0
49.1
48.6
46.0
52.7
50.4
51.0
53.6
50.8
56.0
53.6
50.8
©
Indoor Air Temperature (°F DB)
64
67
70
TC
TC
TC
MBh
MBh
MBh
18.3
18.3
18.0
18.8
18.8
18.8
20.7
20.7
20.7
22.1
21.8
21.8
23.5
23.5
23.5
24.8
24.8
24.2
25.9
25.9
25.9
26.5
26.5
26.5
27.3
27.3
27.0
28.4
28.4
27.3
29.5
28.7
27.3
30.0
28.7
27.3
30.0
28.7
27.3
30.0
28.7
27.3
30.0
28.7
27.3
21.1
21.1
20.8
21.7
21.7
21.7
23.9
23.9
23.9
25.5
25.2
25.2
27.1
27.1
27.1
28.7
28.7
28.0
29.9
29.9
29.9
30.6
30.6
30.6
31.5
31.5
31.2
32.8
32.8
31.5
34.0
33.1
31.5
34.7
33.1
31.5
34.7
33.1
31.5
34.7
33.1
31.5
34.7
33.1
31.5
27.2
27.2
26.8
28.0
28.0
28.0
30.9
30.9
30.9
32.9
32.5
32.5
34.9
34.9
34.9
36.9
36.9
36.0
38.6
38.6
38.6
39.4
39.4
39.4
40.6
40.6
40.2
42.2
42.2
40.6
43.8
42.6
40.6
44.7
42.6
40.6
44.7
42.6
40.6
44.7
42.6
40.6
44.7
42.6
40.6
29.3
29.3
28.9
30.2
30.2
30.2
33.3
33.3
33.3
35.5
35.0
35.0
37.7
37.7
37.7
39.9
39.9
38.9
41.6
41.6
41.6
42.5
42.5
42.5
43.8
43.8
43.4
45.6
45.6
43.8
47.3
46.0
43.8
48.2
46.0
43.8
48.2
46.0
43.8
48.2
46.0
43.8
48.2
46.0
43.8
For outdoor unit performance data, see the respective outdoor unit performance data manuals on
www.lg-vrf.com.
73
76
80
TC
TC
TC
MBh
MBh
MBh
18.0
18.0
18.0
18.6
18.6
18.6
20.7
20.7
20.7
21.8
21.8
21.8
23.5
23.2
22.9
24.2
23.9
23.6
25.4
25.1
24.8
25.9
25.1
24.3
26.5
25.1
23.8
26.5
25.1
23.8
26.5
25.1
23.8
26.5
25.1
23.8
26.5
25.1
23.8
26.5
25.1
23.8
26.5
25.1
23.8
20.8
20.8
20.8
21.4
21.4
21.4
23.9
23.9
23.9
25.2
25.2
25.2
27.1
26.8
26.5
28.0
27.6
27.2
29.3
29.0
28.7
29.9
29.0
28.1
30.6
29.0
27.5
30.6
29.0
27.5
30.6
29.0
27.5
30.6
29.0
27.5
30.6
29.0
27.5
30.6
29.0
27.5
30.6
29.0
27.5
26.8
26.8
26.8
27.6
27.6
27.6
30.9
30.9
30.9
32.5
32.5
32.5
34.9
34.5
34.1
36.0
35.5
35.0
37.8
37.4
37.0
38.6
37.4
36.2
39.4
37.4
35.4
39.4
37.4
35.4
39.4
37.4
35.4
39.4
37.4
35.4
39.4
37.4
35.4
39.4
37.4
35.4
39.4
37.4
35.4
28.9
28.9
28.9
29.8
29.8
29.8
33.3
33.3
33.3
35.0
35.0
35.0
37.7
37.2
36.8
38.9
38.3
37.8
40.7
40.3
39.9
41.6
40.3
39.0
42.5
40.3
38.2
42.5
40.3
38.2
42.5
40.3
38.2
42.5
40.3
38.2
42.5
40.3
38.2
42.5
40.3
38.2
42.5
40.3
38.2