Pressure/temperature, Chart for checking superheat and subcooling – Reznor RXH (Outdoor PreevA) Unit Installation Manual User Manual
Page 66
Form I-RDH/REH/RHH/RXH (12-14), Page 66
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 and
Subcooling
NOTE: If equipped with
a cooling coil cabinet
with dehumidification,
the dh circuit is factory
charged with R410A
refrigerant.