![background image](http://html.mh-extra.com/html/carrier/50hx-guide/50hx-guide_installation-start-up-and-operating-instructions-manual_2563314028.webp)
Straighten bent fins with a fin comb. If coated with dirt or lint,
clean the coils with a vacuum cleaner, using the soft brush
attachment. Be careful not to bend the fins. If coated with oil or
grease, clean the coils with a mild detergent-and-water solution.
Rinse coils with clear water, using a garden hose. Be careful not to
splash water on motors, insulation, wiring, or air filter(s). For best
results, spray outdoor coil fins from inside to outside the unit. On
Table 13A—Superheat Charging Table, Unit 024–311
TEMP (F)
AIR ENT
COND
EVAP AIR – CFM
800
EVAP AIR – Ewb (F)
56
58
60
62
64
66
68
70
72
74
76
65
SPH
—
—
24.0
27.4
30.8
31.1
31.5
30.5
29.5
29.2
28.9
70
—
—
19.5
24.4
29.3
29.9
30.4
29.5
28.6
28.2
27.8
75
—
—
15.0
21.4
27.8
28.6
29.4
28.5
27.7
27.2
26.7
80
—
—
7.5
14.4
21.4
24.5
27.6
27.1
26.5
26.1
25.6
85
—
—
—
7.5
15.0
20.4
25.8
25.6
25.4
24.9
24.5
90
—
—
—
—
7.5
14.0
20.4
22.3
24.2
23.8
23.4
95
—
—
—
—
—
7.5
15.0
19.0
23.1
22.7
22.3
100
—
—
—
—
—
—
7.5
13.5
19.5
20.3
21.1
105
—
—
—
—
—
—
—
8.0
16.0
18.0
20.0
110
—
—
—
—
—
—
—
—
12.4
15.7
18.9
115
—
—
—
—
—
—
—
—
8.9
13.3
17.8
Ewb-Entering Wet Bulb
SPH-Superheat at Compressor (F)
– -Do not attempt to charge system under these conditions as refrigerant slugging may occur.
Table 13B—Superheat Charging Table, Unit 024–321
TEMP (F)
AIR ENT
COND
EVAP AIR – CFM
750
EVAP AIR – Ewb (F)
56
58
60
62
64
66
68
70
72
74
76
65
SPH
38.0
37.3
37.4
37.5
38.3
37.7
36.8
35.9
35.0
34.3
33.5
70
33.3
32.3
33.2
33.9
36.9
36.0
35.2
34.4
33.4
32.5
31.8
75
24.6
25.6
24.1
25.0
33.3
34.8
33.8
32.6
31.8
31.0
30.2
80
16.4
17.6
21.4
16.8
23.2
31.8
32.2
31.3
30.4
29.5
28.6
85
—
—
9.4
8.6
14.7
21.6
29.4
29.8
28.9
27.8
27.0
90
—
—
—
—
—
11.6
18.9
26.4
27.3
26.4
25.5
95
—
—
—
—
—
3.7
10.8
18.0
24.1
25.0
24.1
100
—
—
—
—
—
—
—
8.0
16.3
22.1
22.6
105
—
—
—
—
—
—
—
—
7.2
14.8
20.1
110
—
—
—
—
—
—
—
—
—
5.2
13.8
115
—
—
—
—
—
—
—
—
—
—
5.1
Ewb-Entering Wet Bulb
SPH-Superheat at Compressor (F)
– -Do not attempt to charge system under these conditions as refrigerant slugging may occur.
Table 13C—Superheat Charging Table, Unit 030
TEMP (F)
AIR ENT
COND
EVAP AIR – CFM
1000
EVAP AIR – Ewb (F)
56
58
60
62
64
66
68
70
72
74
76
65
SPH
5.5
5.5
5.5
12.5
19.6
26.6
26.9
27.2
27.5
26.5
25.4
70
—
—
—
10.5
17.5
24.5
24.8
25.1
25.4
25.1
24.8
75
—
—
—
8.4
15.5
22.5
22.8
23.1
23.4
23.8
24.2
80
—
—
—
6.8
12.9
18.9
20.3
21.5
22.9
23.0
23.0
85
—
—
—
5.1
10.2
15.4
17.7
20.1
22.3
22.1
21.8
90
—
—
—
—
7.9
11.9
15.2
18.5
21.8
21.5
21.2
95
—
—
—
—
5.6
8.4
12.7
17.0
21.2
20.8
20.6
100
—
—
—
—
—
—
9.2
14.1
191
19.5
19.9
105
—
—
—
—
—
—
5.7
11.4
17.1
18.2
19.3
110
—
—
—
—
—
—
5.0
10.0
15.1
16.9
18.6
115
—
—
—
—
—
—
—
8.7
13.0
15.5
18.0
Ewb-Entering Wet Bulb
SPH-Superheat at Compressor (F)
– -Do not attempt to charge system under these conditions as refrigerant slugging may occur.
28