Black Box CRDX-A-FS-12KW Manuale Utente
724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 41
Chapter 2: Installation
2.10.3 Refrigerant Characteristics
2.10.3.1 Pressure/Temperature Settings
2.10.3.1 Pressure/Temperature Settings
The following table is provided to assist with the normal settings of the system for R410A refrigerant. Where applicable, minimum
and maximum settings are given along with normal operating pressures.
and maximum settings are given along with normal operating pressures.
Table 2-11. R410A refrigerant pressure/temperature settings.
Normal
Min.
Max.
Sub-cooling °F
10
5
20
Superheat °F
15
10
20
Design Condensing Temp. @ 95°F
Ambient
125
105
140
Suction Pressure (psig)
130
105
140
Fan Cycling Control—Fan On (psig)
440
330
480
Fan Speed Control (psig)
440
—
—
2.10.3.2 Saturated Refrigerant Pressure
The following refrigerant temperature/pressure table is provided for reference for R410A refrigerant.
Table 2-12. R410A refrigerant pressures.
Temperature (°F)
Pressure (psig)
Temperature (°F)
Pressure (psig)
20
78.4
75
218
22
81.9
80
236
24
85.5
85
255
26
89.2
90
274
28
93.1
95
295
30
97.0
100
318
32
101
105
341
34
105
110
365
36
109
115
391
38
114
120
418
40
118
125
446
42
123
130
477
44
128
135
508
46
133
140
541
48
137
—
—
50
143
—
—
55
155
—
—
60
170
—
—
65
185
—
—
70
201
—
—