Carrier Comfort 25HBB series, Installation Instructions Manual

Page: 11 / 12

11
Table 7 – Required Liquid Line Temperatures
_
F
LIQUID PRESSURE AT
SERVICE VALVE (PSIG)
REQUIRED SUBCOOLING TEMPERATURE (° F)
8 10 12 14 16 18
251 76 74 72 70 68 66
259 78 76 74 72 70 68
266 80 78 76 74 72 70
274 82 80 78 76 74 72
283 84 82 80 78 76 74
291 86 84 82 80 78 76
299 88 86 84 82 80 78
308 90 88 86 84 82 80
317 92 90 88 86 84 82
326 94 92 90 88 86 84
335 96 94 92 90 88 86
345 98 96 94 92 90 88
354 100 98 96 94 92 90
364 102 100 98 96 94 92
374 104 102 100 98 96 94
384 106 104 102 100 98 96
395 108 106 104 102 100 98
406 110 108 106 104 102 100
416 112 110 108 106 104 102
427 114 112 110 108 106 104
439 116 114 112 110 108 106
450 118 116 114 112 110 108
462 120 118 116 114 112 110
474 122 120 118 116 114 112
486 124 122 120 118 116 114
499 126 124 122 120 118 116
511 128 126 124 122 120 118
Table 8 – Superheat Charging (Heat Pump Only)
OUTDOOR TEMP (° F)
EVAPORATOR ENTERING AIR TEMPERATURE (° F WB)
50 52 54 56 58 60 62 64 67 68 70 72 74 76
55
11 11 12 12 12 13 17 20 24 24 25 25 25 25
60 6 6 7 7 7 7 12 16 21 22 23 23 23 23
65 – – – – – 3 7 12 18 19 21 21 22 22
70
– – – – – – – 7 14 16 18 20 20 20
75 – – – – – – – 3 11 13 16 18 18 19
82 – – – – – – – – *6 8 12 15 16 17
85 – – – – – – – – 4 7 11 14 15 16
90 – – – – – – – – – 4 8 12 14 15
95 – – – – – – – – – – 6 10 12 14
100 – – – – – – – – – – 4 8 11 12
105 – – – – – – – – – – 3 6 9 11
110 – – – – – – – – – – – 5 7 10
115 – – – – – – – – – – – 3 6 8
*Optimum performance point, 82° F outdoor ambient and (80° F dry bulb),( 67° F wet bulb) indoor conditions. (DOE B Test Conditions)
Where a dash (––) appears do not attempt to charge system under these conditions or refrigerant slugging may occur. Charge must be weighed in.
Note : Superheat ° F is at low–side service port, Allow a tolerance of ± 3° F
Note : Indoor dry bulb between 70° F and 80° F
Table 9 – Required Suction–Line Temperature
SUPERHEAT TEMP (° F)
SUCTION PRESSURE AT SERVICE PORT (PSIG)
107.8 112.2 116.8 121.2 126 130.8 138.8 140.8 145.8
0 35 37 39 41 43 45 47 49 51
2 37 39 41 43 45 47 49 51 53
4 39 41 43 45 47 49 51 53 55
6 41 43 45 47 49 51 53 55 57
8 43 45 47 49 51 53 55 57 59
10 45 47 49 51 53 55 57 59 61
12 47 49 51 53 55 57 59 61 63
14 49 51 53 55 57 59 61 63 65
16
51 53 55 57 59 61 63 65 67
18 53 55 57 59 61 63 65 67 69
20 55 57 59 61 63 65 67 69 71
22
57 59 61 63 65 67 69 71 73
24 59 61 63 65 67 69 71 73 75
26 61 63 65 67 69 71 73 75 77
28
63 65 67 69 71 73 75 77 79
30 65 67 69 71 73 75 77 79 81
25H
B
B
/25H
B
C
/25H
C
D