Daikin VRV S RXQ4/5ARV1 - Refrigerant Properties (R-410 A)

Servicing Items to be Confirmed SiAF332111E
178 Part 6 Service Diagnosis
PCB may sometimes display an error code. If any error codes are displayed, press the
RETURN (BS3) button. If performing the above operation still does not eliminate the error,
reconnect the unit to the power supply.
1.3 Refrigerant Properties (R-410A)
Temperature
(°C)
Absolute
Pressure
(MPa)
Temperature
(°C)
Absolute
Pressure
(MPa)
Temperature
(°C)
Absolute
Pressure
(MPa)
Temperature
(°C)
Absolute
Pressure
(MPa)
–50 0.11 –20 0.40 10 1.09 40 2.42
–48 0.12 –18 0.43 12 1.15 42 2.54
–46 0.13 –16 0.46 14 1.22 44 2.67
–44 0.15 –14 0.50 16 1.29 46 2.80
–42 0.16 –12 0.54 18 1.37 48 2.93
–40 0.18 –10 0.57 20 1.45 50 3.07
–38 0.19 –8 0.61 22 1.53 52 3.21
–36 0.21 –6 0.66 24 1.61 54 3.36
–34 0.23 –4 0.70 26 1.70 56 3.51
–32 0.25 –2 0.75 28 1.79 58 3.64
–30 0.27 0 0.80 30 1.89 60 3.83
–28 0.29 2 0.85 32 1.99 62 4.00
–26 0.32 4 0.91 34 2.09 64 4.17
–24 0.34 6 0.96 36 2.20 ― ―
–22 0.37 8 1.02 38 2.31 ― ―
4.00
3.80
3.60
3.40
3.20
3.00
2.80
2.60
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
3.90
3.70
3.50
3.30
3.10
2.90
2.70
2.50
2.30
2.10
1.90
1.70
1.50
1.30
1.10
0.90
0.70
0.50
0.30
0.10
–0.10
0–10–20–30–40–50 10 20 30 40 50 60
Temperature ˚C
Absolute pressure (MPa)
Pressure gauge value (MPa G)