75 (24) 85 (29) 95 (35) 105 (41) 115 (46)
Pressure
(psig)
5 10152025
Pressure
(kPa)
36 81114
189 6156514641 1303161311 8 5
024 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
196 6358534843 1351171512 9 6
030 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
203 6661565146 139919161310 8
036 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
210 6863585348 144820171411 9
042 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
217 7065605550 14962118151310
048 14 (7.5) 13 (7.3) 13 (7.2) 12 (6.9) 12 (6.7)
224 7267625752 15442219161411
060 13 (6.9) 12 (6.8) 12 (6.6) 11 (6.3) 11 (6.1)
231 7469645954 15932320181512
238 7671666156 16412421191613
245 7772676257 16892522201714
252 79 74
696459 17372623211815
260 8176716661 17922725221916
268 8378736863 18482926232017
276 8580757065 19033027242119
284 8782777267 19583128252220
292 8984797469 20133229262321
300 9186817671 20683330272422
309 9388837873 21303431282623
318 9590858075 21923532292724
327 9792878277 22543633312825
336 9994898479 23163734322926
34510196918681 23783835333027
354 103 98 93 88 83 2440 39 36 34 31 28
364105100959085 25094038353229
374 107 102 97 92 87 2578 41 39 36 33 30
384108103989388 26474240373431
394 110 105 100 95 90 2716 44 41 38 35
32
404 112 107 102 97 92 2785 45 42 39 36 33
414 114 109 104 99 94 2854 46 43 40 37 34
424 116 111 106 101 96 2923 47 44 41 38 35
434 118 113 108 103 98 2992 48 45 42 39 36
444 119 114 109 104 99 3061 48 46 43 40 37
454 121 116 111 106 101 3130 49 47 44 41 38
464 123 118 113 108 103 3199 50 48 45 42 39
474 124 119 114 109 104 3268 51 48 46 43 40
484 126 121 116 111 106 3337 52 49 47 44 41
494 127 122 117 112 107 3406 53 50 47 45 42
504 129 124 119 114 109 3475 54 51 48 46 43
514 131 126 121 116 111 3544 55 52 49 46 44
524 132 127 122 117 112 3612 56 53 50 47 45
534 134 129 124 119 114 3681 56 54 51 48 45
4- Refer to the required Subcooling in the table based on the model size and
the Outdoor Ambient tempe
rature.
1- Measure Discharge line pressure by attaching a gauge to the service port.
2- Measure the Liquid line temperature by attaching a temperature sensing
device to it.
3- Insulate the temperature sensing device so that the Outdoor Ambient
doesn’t affect the reading.
9 - Remove charge if the measured temperature is lower than the table value.
Charging Procedure
5- Interpolate if the Outdoor ambient temperature lies in between the table
values.
50VL500323 REV 2.0
Required Liquid Line Temperature for a Specific Subcooling (R-410A)
Required Subcooling (
o
C)Required Subcooling (
o
F)
6- Find the Pressure Value in the table corresponding to the the measured
Pressure of the Compressor Discharge line.
8- Add Charge if the measured temperature is higher than the table value.
7- Read across from the Pressure reading to obtain the Liquid line
temperature for a required Subcooling
Model Size
Required Subcooling °F(°C)
Outdoor Ambient Temperature °F(°C)
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