Bryant 574D - Manual (Page 20)

20
Table 6 – Cooling Charging Chart
75 (24) 85 (29) 95 (35) 105 (41) 115 (46)
Pressure
(psig) 5 10 15 20 25
Pressure
(kPa) 3 6 8 11 14
018 13 (7.2) 14 (7.8) 15 (5.0) 16 (8.9) 16 (8.9) 189 66 61 56 51 46 41 1303 19 16 13 11 8 5
024 10 (5.6) 11 (6.1) 11 (6.1) 12 (6.7) 13 (7.2) 196 68 63 58 53 48 43 1351 20 17 15 12 9 6
030 12 (6.7) 13 (7.2) 14 (7.8) 15 (5.0) 15 (5.0) 203 71 66 61 56 51 46 1399 21 19 16 13 10 8
036 14 (7.8) 14 (7.8) 14 (7.8) 14 (7.8) 14 (7.8) 210 73 68 63 58 53 48 1448 23 20 17 14 11 9
042 11 (6.1) 11 (6.1) 11 (6.1) 10 (5.6) 9 (5.0) 217 75 70 65 60 55 50 1496 24 21 18 15 13 10
048 8 (4.4) 7 (3.9) 7 (3.9) 7 (3.9) 6 (3.3) 224 77 72 67 62 57 52 1544 25 22 19 16 14 11
060 14 (7.8) 13 (7.2) 12 (6.7) 11 (6.1) 10 (5.6) 231 79 74 69 64 59 54 1593 26 23 20 18 15 12
238 81 76 71 66 61 56 1641 27 24 21 19 16 13
245 82 77 72 67 62 57 1689 28 25 22 20 17 14
252 84 79 74 69 64 59 1737 29 26 23 21 18 15
260 86 81 76 71 66 61 1792 30 27 25 22 19 16
268 88 83 78 73 68 63 1848 31 29 26 23 20 17
276 90 85 80 75 70 65 1903 32 30 27 24 21 19
284 92 87 82 77 72 67 1958 33 31 28 25 22 20
292 94 89 84 79 74 69 2013 35 32 29 26 23 21
300 96 91 86 81 76 71 2068 36 33 30 27 24 22
309 98 93 88 83 78 73 2130 37 34 31 28 26 23
318 100 95 90 85 80 75 2192 38 35 32 29 27 24
327 102 97 92 87 82 77 2254 39 36 33 31 28 25
336 104 99 94 89 84 79 2316 40 37 34 32 29 26
345 106 101 96 91 86 81 2378 41 38 35 33 30 27
354 108 103 98 93 88 83 2440 42 39 36 34 31 28
364 110 105 100 95 90 85 2509 43 40 38 35 32 29
374 112 107 102 97 92 87 2578 44 41 39 36 33 30
384 113 108 103 98 93 88 2647 45 42 40 37 34 31
394 115 110 105 100 95 90 2716 46 44 41 38 35 32
404 117 112 107 102 97 92 2785 47 45 42 39 36 33
414 119 114 109 104 99 94 2854 48 46 43 40 37 34
424 121 116 111 106 101 96 2923 49 47 44 41 38 35
434 123 118 113 108 103 98 2992 50 48 45 42 39 36
444 124 119 114 109 104 99 3061 51 48 46 43 40 37
454 126 121 116 111 106 101 3130 52 49 47 44 41 38
464 128 123 118 113 108 103 3199 53 50 48 45 42 39
474 129 124 119 114 109 104 3268 54 51 48 46 43 40
484 131 126 121 116 111 106 3337 55 52 49 47 44 41
494 132 127 122 117 112 107 3406 56 53 50 47 45 42
504 134 129 124 119 114 109 3475 57 54 51 48 46 43
514 136 131 126 121 116 111 3544 58 55 52 49 46 44
524 137 132 127 122 117 112 3612 58 56 53 50 47 45
534 139 134 129 124 119 114 3681 59 56 54 51 48 45
4- Refer to the required Subcooling in the table based on the model size and
the Outdoor Ambient temperature.
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.
Model Size
Required Subcooling oF (oC)
Outdoor Ambient Temperature
Required Liquid Line Temperature for a Specific Subcooling (R-410A)
Required Subcooling ( o C) Required Subcooling ( o F)
50ES500006 REV 2.0
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
Charging Procedure
5- Interpolate if the Outdoor ambient temperature lies in between the table
values.
Table 7 – Filter Pressure Drop Table (in. wc)
FILTER SIZE
CFM
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
20X20X1 0.05 0.07 0.08 0.1 0.12 0.13 0.14 0.15 — — — — — — — — — — —
24X30X1 — — — 0.04 0.05 0.06 0.07 0.07 0.08 0.09 0.1 — — — — — — — —
24X36X1 — — — — — — — 0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.11 0.12 0.13 0.14 0.14
Table 8 – Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 574D024--060 (Deduct 10% for 208 Volts)
Unit
Heating Rise
Range o F (°C)
Motor
Speed
External Static Pressure (in. wc)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
574D018040
30 --- 60
(17 --- 33)
Low 1
Watts 260 243 229 217 209 --- --- --- --- --- --- --- ---
CFM 859 775 667 536 382 --- --- --- --- --- --- --- ---
Heating Rise o F
°C
35
19
39
22
45
25
56
31
NA NA NA NA NA
High
Watts 340 328 317 307 300 294 --- --- --- --- --- ---
CFM 1064 948 820 680 528 364 --- --- --- --- --- ---
Heating Rise o F
°C
NA
32
18
37
20
44
25
57
32
NA NA NA NA
574D024040
20 --- 50
(11 --- 28)
Low 1
Watts 311 309 304 301 286 290 286 280 --- ---
CFM 935 885 820 757 686 583 423 263 --- ---
Heating Rise o F
°C
32
18
34
19
37
20
40
22
44
24
NA NA NA NA
Medium
Watts 411 405 398 390 379 357 357 345 327
CFM 1195 1155 1100 1028 957 868 769 647 365
Heating Rise o F
°C
25
14
26
14
27
15
29
16
31
17
35
19
39
22
46
26
NA
High
Watts 528 518 509 492 477 467 447 435 421
CFM 1484 1421 1368 1279 1185 1088 970 853 712
Heating Rise o F
°C
20
11
21
12
22
12
23
13
25
14
28
15
31
17
35
20
42
23
574D