Outdoor Unit Model
J4AC3042A1
J4AC4042A1
J4HP4042A1
J4AC3048A1
J4AC4048A1
J4HP4048A1
J4AC3060A1
J4AC6048A1
NOTE: Since the manufacturer has a policy of continuous product and product data improvement, if
the system combination you are looking for is not listed, check for the latest version of this
document at www.OXBOXHVAC.com.
Table 3 . Optional TXV kit part numbers. Some combinations may require a TXV. See AHRI
for system combination ratings.
Outdoor Unit Capacity (Tons)
1.5-3.0
3.5-4.0
Table 4.Superheat Charging Chart
Charge the system by superheat when using a piston. Reference the outdoor unit installation guide
to charge the system by subcooling when using a TXV.
Outdoor
95/79
Temp(°F)
115
110
105
100
95
90
85
80
75
70
65
60
55
Indoor Unit Model
J4AH4P42A1C00A
0.075 factory installed
J4AH4P48A1C00A
0.083 factory installed
J4AH4P60B1C00A
0.090 factory installed
5
Indoor Temperature(°F) Dry Bulb/wet Bulb
90/75
23
16
24
17
26
19
27
21
29
23
30
25
32
26
34
28
35
30
37
32
38
34
40
36
41
37
R410a TXV Kit
4AYTXVH3G2436A
4AYTXVH3G4248A
4AYTXVH3G6000A
85/71
80/67
Superheat (°F)
7
6
9
6
11
6
13
7
14
9
18
12
20
15
22
17
24
19
26
21
29
24
31
27
34
30
19
Piston Size(R410a)
0.075
0.075
0.075
0.083
0.083
0.083
0.090
0.083
75/63
70/58
5
5
5
5
5
5
6
5
6
5
7
5
9
6
11
6
13
7
16
10
19
13
22
17
26
21
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