14
Table 6 — Thermistor Resistance vs Temperature Values for
Supply-Air Temperature Sensor, Primary Air Temperature Sensor and Space Temperature Sensor
SPACE TEMPERATURE SENSOR INSTALLATION AND
WIRING — The space temperature (SPT) sensor accessory is
ordered separately for field installation. It is installed on
interior walls to measure room space air temperature. See
Fig. 16-20 and Table 6.
The wall plate accommodates both the NEMA (National
Electrical Manufacturing Association) standard and the Euro-
pean
1
/
4
DIN standard. The use of a junction box to accommo-
date the wiring is recommended for installation. The sensor
may be mounted directly on the wall, if acceptable by local
codes.
DO NOT mount the sensor in drafty areas such as near heat-
ing or air-conditioning ducts, open windows, fans, or over heat
sources such as baseboard heaters or radiators. Sensors mount-
ed in those areas will produce inaccurate readings.
Avoid corner locations. Allow at least 3 ft between the sen-
sor and any corner. Air in corners tends to be stagnant, resulting
in inaccurate sensor readings.
Sensor should be mounted approximately 5 ft up from the
floor, in an area that best represents the average temperature
found in the space (zone).
The space temperature sensor cover includes a service jack
connector. If wiring connection is made to the service jack, the
connector can then be used to connect a network service tool
with the Carrier Comfort Network® system.
Before installing the space temperature sensor, decide
whether or not the service jack wiring connection will be made.
If connection is desired, the CCN communication cable should
be available at time of sensor installation, for convenient
wiring connections. The cable selected must meet the
requirements for the entire network. See Connect the CCN
Communication Bus section for CCN communication cable
specifications.
RESISTANCE
(Ohms)
TEMP
(F)
RESISTANCE
(Ohms)
TEMP
(F)
RESISTANCE
(Ohms)
TEMP
(F)
RESISTANCE
(Ohms)
TEMP
(F)
RESISTANCE
(Ohms)
TEMP
(F)
29481
32
17050
54
10227
76
6340
98
4051
120
28732
33
16646
55
10000
77
6209
99
3972
121
28005
34
16253
56
9779
78
6080
100
3895
122
27298
35
15870
57
9563
79
5954
101
3819
123
26611
36
15497
58
9353
80
5832
102
3745
124
25943
37
15134
59
9148
81
5712
103
3673
125
25295
38
14780
60
8948
82
5595
104
3603
126
24664
39
14436
61
8754
83
5481
105
3533
127
24051
40
14101
62
8563
84
5369
106
3466
128
23456
41
13775
63
8378
85
5260
107
3400
129
22877
42
13457
64
8197
86
5154
108
3335
130
22313
43
13148
65
8021
87
5050
109
3272
131
21766
44
12846
66
7849
88
4948
110
3210
132
21234
45
12553
67
7681
89
4849
111
3150
133
20716
46
12267
68
7517
90
4752
112
3090
134
20212
47
11988
69
7357
91
4657
113
3033
135
19722
48
11717
70
7201
92
4564
114
2976
136
19246
49
11452
71
7049
93
4474
115
2920
137
18782
50
11194
72
6900
94
4385
116
2866
138
18332
51
10943
73
6755
95
4299
117
2813
139
17893
52
10698
74
6613
96
4214
118
2761
140
17466
53
10459
75
6475
97
4132
119
ZC
AIR
TERMINAL
UNIT
MULTIPLE
OUTLET
ATTENUATOR
HEAT
SAT
2 FT. MIN.
PRIMARY
AIR INLET
ZC
AIR
TERMINAL
UNIT
HEAT
SAT
2 FT. MIN.
PRIMARY
AIR INLET
LEGEND
Fig. 15 — Supply Air Temperature Probe (Part No. 33ZCSENSAT) Locations
SAT —
Supply Air Temperature Sensor
ZC
—
Zone Controller
UNIT WITH ELECTRIC HEAT
UNIT WITH MULTIPLE OUTLET ATTENUATOR