Carrier SINGLE PACKAGE ROOFTOP 48HC User Manual
Page 47
47
To install the return air sensor sampling tube:
1. Remove the tube from its shipping location.
2. Open the unit end to access the return air sensor (loc-
ated on right--hand partition)
3. Orient the tube’s sampling holes into the return air
flow direction. For vertical application, position the
sampling holes on the bottom of the tube, facing into
the bottom return duct opening. For horizontal applic-
ation, position the sampling holes on the side of the
tube, facing the unit’s end panel.
4. Insert the sampling tube into the return air sensor
module until the tube snaps into position.
5. Replace end panel or outside air hood.
Smoke Detector Test Magnet —
Locate the magnet; it is shipped in the control box area.
Additional Application Data —
Refer to Catalog No. HKRNKA--1XA for discussions on
additional control features of these smoke detectors
including multiple unit coordination.
Table 11 – Unit Wire/Fuse or HACR Breaker Sizing Data
UN
IT
NOM.
V---Ph---Hz
IFM
TYPE
COMBUSTION
FAN MOTOR
POWER
EXHAUST
NO C.O. or UNPWR C.O.
FLA
FLA
NO P.E.
w/ P.E. (pwrd fr/ unit)
MCA
FUSE or
HACR
BRKR
DISC. SIZE
MCA
FUSE or
HACR
BRKR
DISC. SIZE
FLA
LRA
FLA
LRA
48H
C
*D
17
208/230---3---60
STD
0.52
5.9
68.3
90.0
71
393
80.1
100.0
85
413
MED
71.0
90.0
74
410
82.8
100.0
88
430
HIGH
75.8
100.0
80
419
87.6
100.0
93
439
460---3---60
STD
0.3
3.1
34.9
45.0
36
234
41.1
50.0
44
246
MED
36.3
45.0
38
243
42.5
50.0
45
255
HIGH
38.9
50.0
41
247
45.1
50.0
48
259
575---3---60
STD
0.24
2.4
26.2
30.0
27
184
31.0
40.0
33
192
MED
26.2
30.0
27
184
31.0
40.0
33
192
HIGH
29
35
31
198
33.8
40
36
206
48H
C
*D
20
208/230---3---60
STD
0.52
5.9
75.7
100
79
440
87.5
100
93
460
MED
80.5
100
85
449
92.3
100
98
469
HIGH
85.9
100
91
459
97.7
125
104
479
460---3---60
STD
0.3
3.1
36.6
45
38
245
42.8
50
46
257
MED
39.2
50
41
249
45.4
50
49
261
HIGH
42
50
45
254
48.2
60
52
266
575---3---60
STD
0.24
2.4
26.2
30
27
186
31
40
33
194
MED
29
35
31
200
33.8
40
36
208
HIGH
32.4
40
35
198
37.2
45
40
206
48H
C
*D
24
208/230---3---60
STD
0.52
5.9
88.7
100.0
93
544
100.5
125.0
107
564
MED
94.1
110
100
554
105.9
125
113
574
HIGH
107.6
125
114
628
119.4
150
128
648
460---3---60
STD
0.3
3.1
48.6
60.0
51
277
54.8
60.0
58
289
MED
51.4
60
54
282
57.6
70
61
294
HIGH
57.4
70
61
319
63.6
80
68
331
575---3---60
STD
0.24
2.4
35.5
45.0
37
204
40.3
50.0
43
212
MED
38.9
50
41
202
43.7
50
47
210
HIGH
39.4
50
42
229
44.2
50
47
237
48H
C
*D
28
208/230---3---60
STD
0.52
5.9
117.4
150.0
121
584
129.2
175.0
135
604
MED
122.8
150
127
594
134.6
175
141
614
HIGH
135.5
175
142
668
147.3
175
156
688
460---3---60
STD
0.3
3.1
54.0
60.0
57
303
60.2
70.0
64
315
MED
56.8
70
60
308
63
80
67
320
HIGH
62.8
80
67
345
69
80
74
357
575---3---60
STD
0.24
2.4
40.4
50.0
42
228
45.2
50.0
48
236
MED
43.8
50
46
226
48.6
60
52
234
HIGH
44.3
50
47
253
49.1
60
52
261
NOTE: See page 49 for table legend and notes.
48H
C