Pressure/temperature chart for checking superheat, Subcooling – Reznor SHH (Indoor PreevA) Unit Installation Manual User Manual
Page 69
Form I-PDH/SDH/PEH/SHH/PXH, Page 69
NOTE: Information in this
chart was taken from the
Temperature Pressure
Chart printed in Form IC-
2-04 by the Sporlan Valve
Company, Washington,
MO 63090
Pressure/Temperature Chart for Checking Superheat & Subcooling
Saturation Temperature
Pressure (psig) by Refrigerant
(°F)
(°C)
R22
R410A
R407C
R134a
0
-17.8
24.0
48.2
18.9
6.5
5
-15.0
28.3
55.0
22.8
9.1
10
-12.2
32.8
62.3
27.1
12.0
15
-9.4
37.8
70.2
31.8
15.1
20
-6.7
43.1
78.7
36.9
18.4
25
-3.9
48.8
87.8
42.4
22.1
30
-1.1
54.9
97.5
48.4
26.1
35
1.7
61.5
107.9
54.8
30.4
40
4.4
68.6
118.9
61.7
35.0
45
7.2
76.1
130.7
69.1
40.0
50
10.0
84.1
143.3
77.1
45.4
55
12.8
92.6
156.6
106.0
51.2
60
15.6
101.6
170.7
116.2
57.4
65
18.3
111.3
185.7
127.0
64.0
70
21.1
121.5
201.5
138.5
71.1
75
23.9
132.2
218.2
150.6
78.6
80
26.7
143.7
235.9
163.5
86.7
85
29.4
155.7
254.6
177.0
95.2
90
32.2
168.4
274.3
191.3
104.3
95
35.0
181.9
295.0
206.4
113.9
100
37.8
196.0
316.9
222.3
124.1
105
40.6
210.8
339.9
239.0
134.9
110
43.3
226.4
364.1
256.5
146.3
115
46.1
242.8
389.6
274.9
158.4
120
48.9
260.0
416.4
294.2
171.1
125
51.7
278.1
444.5
314.5
184.5
130
54.4
297.0
474.0
335.7
198.7
135
57.2
316.7
505.0
357.8
213.5
140
60.0
337.4
537.6
380.9
229.2
145
62.8
359.1
571.7
405.1
245.6
150
65.6
381.7
607.6
430.3
262.8
155
68.3
405.4
645.2
456.6
281.0
Pressure/
Temperature Chart
for Checking
Superheat &
Subcooling