9
SUCTION PRESSURE
PSIG
R-22
R-410A
50
26
1
52
28
3
54
29
4
56
31
6
58
32
7
60
34
8
62
35
10
64
37
11
66
38
13
68
40
14
70
41
15
72
42
16
74
44
17
76
45
19
78
46
20
80
48
21
85
50
24
90
53
26
95
56
29
100
59
31
110
64
36
120
69
41
130
73
45
140
78
49
150
83
53
160
86
56
170
90
60
SATURATED SUCTION PRESSURE
TEMPERATURE CHART
SATURATED SUCTION
d. If subcooling is high and superheat is low, adjust
TXV valve to 7 to 9 ºF superheat and remove
charge to lower the subcooling to 7 to 9ºF.
NOTE:
Do NOT adjust the charge based on suction pres-
sure unless there is a gross undercharge.
4. Disconnect manifold set, installation is complete.
NOTE:
Check the Schrader ports for leaks and tighten valve
cores if necessary. Install caps finger-tight.
SUBCOOL FORMULA =
SAT. LIQUID LINE TEMP. - LIQUID LINE TEMP.
SUPERHEAT FORMULA =
SUCT. LINE TEMP. - SAT. SUCT. TEMP.
NOTE:
Expansion valve system in ASPT models are already
tuned for 16 SEER single stage Heat Pump, adjustment of
Expansion valve system is required in case subcool, super-
heat does not match to Section 7.6.3 above or when these
models are installed with any other outdoor models.
LIQUID PRESSURE
PSIG
R-22
R-410A
200
101
70
210
105
73
220
108
76
225
110
78
235
113
80
245
116
83
255
119
85
265
121
88
275
124
90
285
127
92
295
130
95
305
133
97
325
137
101
355
144
108
375
148
112
405
155
118
415
157
119
425
n/a
121
435
n/a
123
445
n/a
125
475
n/a
130
500
n/a
134
525
n/a
138
550
n/a
142
575
n/a
145
600
n/a
149
625
n/a
152
SATURATED LIQUID PRESSURE
TEMPERATURE CHART
SATURATED LIQUID
TEMPERATURE ºF
NOTE:
Units matched with indoor coils equipped with
non-adjustable TXV should be charged by subcooling only.
