Installation & Commissioning Guide - ESP Platinum OD Split Ducted Units
Doc. Part No. 0525-053
Ver. 5 200129
Page 24 of 36
3.
If superheat is within the range (see charging table below), there is no need to add/remove refrigerant.
•
If superheat is lower than minimum, it means that liquid refrigerant may be returning to compressor. It is necessary
to remove refrigerant or check EEV settings.
•
If superheat is higher than maximum, it means that refrigeration capability of evaporator is not fully maximised. it is
necessary to add refrigerant charge or check EEV settings.
Allow the systems to stabilise (15-30 mins) and repeat the step 1-3 until superheat falls within the range specified in
the table below.
SUBCOOL AND SUPERHEAT TABLE
MODELS
Nominal Indoor
Airflow (L/s)
COOLING
HEATING
SUBCOOL
SUPERHEAT
SUBCOOL
SUPERHEAT
CRQ2-14AS
660
8
±
1
5
±
1
8
±
1
2
±
1
CRQ3-17AS
750
8
±
1
9
±
1
6
±
1
2
±
1
CRQ4-19AS
900
9
±
1
11
±
1
11
±
1
2
±
1
NOTE:
The above subcool and superheat recommendations are based on the following rated conditions:
• Cooling: 35
o
C DB outdoor, air entering indoor at 27
o
C DB / 19
o
C WB.
• Heating: 7
o
C DB / 6
o
C WB outdoor, air entering indoor at 20
o
C DB Nominal indoor airflow.
REFRIGERANT CHARGING
R-410A PRESSURE / TEMPERATURE CHART
Copyright © 2008 ActronAir™. All rights reserved.
Page 16
R410A Pressure / Temperature Chart
Temp
o
C
Pressure
k
Pa
Temp
o
C
Pressure
k
Pa
Temp
o
C
Pressure
k
Pa
Temp
o
C
Pressure
k
Pa
-60 -34.4 -28 194.9 4
805.9 36 2090.7
-59 -30.7 -27 206.9 5
834.1 37 2145.5
-58 -26.8 -26 219.2 6
862.9 38 2201.3
-57 -22.8 -25 231.9 7
892.6 39 2258.2
-56 -18.6 -24 245.1 8
922.8 40 2316.1
-55 -14.2 -23 258.7 9
953.8 41 2375.1
-54
-9.6 -22 272.6 10 985.4 42 2435.1
-53
-4.8 -21 286.9 11 1017.8 43 2496.2
-52
0.8 -20 301.7 12 1050.9 44 2558.5
-51
5.3 -19 316.9 13 1084.7 45 2621.8
-50 10.7 -18 332.6 14 1119.2 46 2686.2
-49 16.3 -17 348.7 15 1154.6 47 2751.8
-48 22.2 -16 365.2 16 1190.7 48 2818.5
-47 28.2 -15 382.3 17 1227.5 49 2886.4
-46 34.0 -14 399.7 18 1265.2 50 2955.5
-45 40.9 -13 417.7 19 1303.6 51 3025.7
-44 47.8 -12 436.2 20 1342.9 52 3097.2
-43 54.8 -11 455.1 21 1382.9 53 3169.9
-42 62.1 -10 474.6 22 1423.9 54 3243.7
-41 69.6 -9 494.6 23 1465.7 55 3318.9
-40 77.4 -8 515.1 24 1508.3 56 3395.2
-39 85.5 -7 536.2 25 1551.8 57 3472.9
-38 93.9 -6 557.8 26 1596.2 58 3551.8
-37 102.5 -5 579.9 27 1641.4 59 3631.9
-36 111.5 -4 602.6 28 1687.6 60 3713.5
-35 120.8 -3 625.9 29 1734.6 61 3796.3
-34 130.4 -2 649.8 30 1782.6 62 3880.5
-33 140.3 -1 674.3 31 1831.6 63 3965.9
-32 150.5 0
699.4 32 1881.5 64 4052.8
-31 161.1 1
724.9 33 1932.3 65 4140.9
-30 171.9 2
751.3 34 1984.1 66 4230.6
-29 183.3 3
778.3 35 2036.9 67 4321.5
