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Refrigerant R-410A Pressure Temperature ChartRefrigerant R-410A Pressure Temperature Chart - R410A is an HFC and is commonly used in residential and light commercial HVAC equipment for air conditioners and heat pump systems. It widely replaces HCFC R-22 which was mandated by the Montreal Protocol to be phased out of production and use by 2020. R-410A differs a lot from R-22 in both chemical makeup and the tools needed to measure the pressures of R-410A. Since R-410A operates at higher pressure and a different type of oil is used than R-22 separate gauges should be used to obtain pressures. Cross contamination of the oils can cause serious issues between the two types of systems and it is highly recommended to use separate gauges for service providers.

R-410A Pressure Temperature Chart

PSIG(Pounds per Square Inch Gauge)R-410A (HFC) °Fahrenheit
-5 inches mercury-66
-4 inches mercury-64
-3 inches mercury-63
-2 inches mercury-62
-1 inches mercury-61
0-60
1-59
2-58
3-55
4-54
5-52
6-50
7-48
8-46
9-44
10-42
11-40
12-39
13-38
14-36
15-34
16-33
17-32
18-30
19-29
20-28
21-27
22-26
23-25
24-24
25-22
26-20
27-19
28-18
29-17
30-16
31-15
32-14
33-13
34-12
35-11
36-10
37-9
38-8
39-7
40-6
42-4
44-3
46-2
480
501
523
544
566
587
608
6210
6411
6613
6814
7015
7216
7417
7619
7820
8021
8524
9026
9529
10032
10534
11036
11539
12041
12543
13045
13547
14049
14551
15053
15555
16057
16558
17060
17562
18064
18566
19067
20070
20572
21073
22076
23079
24082
25084
26087
27590
29093
30597
32099
335104
350107
365109
380114
405118
500134
600149
R-410A PT Chart

Refrigerant R-410A Pressure Temperature Chart - History

R-410A was patented by Allied Signal which was purchased by Honeywell in 1991. The trademarked brand name given to R-410A is Genetron but Carrier along with Emerson Climate Technologies and Allied Signal (before the Honeywell purchase) made HVAC units for residential systems that utilized R-410A successfully. Carrier has trademarked the name Puron which is R-410A.

Currently, every manufacturer for residential and light commercial systems offer their main product line which uses R-410A refrigerant for their air conditioners and heat pump systems. R-410A is considered to be a more efficient refrigerant than R-22 because it helps HVAC equipment achieve higher SEER ratings. R-410A has higher thermodynamic and transport properties making it more efficient in the refrigeration system than R-22. This gives R-410A a higher refrigeration capacity than R-22.

Because R-410A adds more efficiency to HVAC equipment makes it a lot more desirable for the environment in more than one way. Because it makes HVAC equipment more efficient means the equipment uses less energy and less energy consumption is better for the environment. Additionally, R-410A has a zero rating for ozone depletion potential (ODP) while R-22 has a .55 ODP.

You can learn more about refrigeration and energy efficiency here.

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Refrigerant R-410A Pressure Temperature Chart

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