Trane IntelliPak WEHE Series Installation, Operation And Maintenance Manual page 52

Installation
Temperature vs. Resistance Coefficient
The UCM network relies on various sensors located
throughout the system to provide temperature
information in the form of an analog input. All of the
sensors used have the same temperature vs. resistance
co-efficient and are made from Keystone Carbon D97
material with a 1 degree Centigrade tolerance.
Table 15. Temperature vs. resistance coefficient
Temp Resistance
(°F) (in. 1000 Ohms)
-40 346.1
-30 241.7
-20 170.1
-10 121.4
-5 103
0 87.56
5 74.65
10 63.8
15 54.66
20 46.94
25 40.4
30 34.85
35 30.18
40 26.22
45 22.85
50 19.96
55 17.47
60 15.33
65 13.49
66 13.15
67 12.82
68 12.5
69 12.19
70 11.89
Occupied/Unoccupied Contacts (5K86)
To provide Night Setback control if a remote panel with
NSB (BAYSENS119*) was not ordered, a field supplied
contact (5K86) must be installed. This binary input
provides the Occupied/Unoccupied status information of
the building to the RTM. It can be initiated by a time clock,
or a Building Automation System control output. The
relay's contacts must be rated for 12 ma @ 24 VDC
minimum. Refer to the appropriate illustrations in
Figure 27, p. 44 or Figure 33, p. 57
connection terminals in the unit control panel.
Emergency Stop Switch (5S71)
A normally closed (N.C.) switch (5S71) wired to the RTM
may be used during emergency situations to shut down all
unit operations. When opened, an immediate shutdown
occurs. An emergency stop diagnostic is entered into the
52
Temp Resistance
(°F) (in. 1000 Ohms)
71 11.6
72 11.31
73 11.03
74 10.76
75 10.5
76 10.25
77 10
78 9.76
79 9.53
80 9.3
85 8.25
90 7.33
100 5.82
105 5.21
110 4.66
120 3.76
130 3.05
140 2.5
150 2.05
160 1.69
170 1.4
180 1.17
190 0.985
200 0.83
for the proper
Human Interface and the unit must be manually reset.
Refer to the appropriate illustrations in
Figure 33, p. 57 for the proper connection terminals in the
unit control panel. The switch must be rated for 12 ma @
24 VDC minimum.
Outside Air Sensor (3RT3) - BAYSENS016A
This device senses the outdoor air temperature and sends
this information in the form of an analog input to the RTM.
It's factory installed on units with an economizer, but can
be field provided/installed and used for informational
purposes on units without an economizer. Refer to the
appropriate illustrations in
the proper connection terminals in the unit control panel.
Refer to Table 3-10 for Temperature vs. Resistance
coefficient.
Generic Building Automation System (1U51)
The Generic Building Automation System (GBAS) module
allows a non-Trane building control system to
communicate with the rooftop unit and accepts external
setpoints in form of analog inputs for cooling, heating,
demand limiting, and supply air pressure parameters.
Generic Building Automation System Module (GBAS 0-
5vdc) - Provided for those cases where non-Tracer building
management system is used. The GBAS module provides
a binary input for Demand Limiting, four (4) analog inputs
for setpoint adjustment and five (5) relay outputs for
diagnostic reporting. Inputs can use a potentiometer or 0-
5 vdc signal.
Generic Building Automation System Module (GBAS 0-10
vdc) - Used to provide broad control capabilities for
building automation systems other than Trane's Tracer™
system. The GBAS module provides a binary input for
Demand Limiting, four (4) analog inputs for setpoint
adjustment and four (4) analog outputs as well as one (1)
relay output for diagnostic reporting. Inputs can use a
potentiometer or 0-10 vdc signal.
Refer to Figure 33, p. 57 for the input wiring to the GBAS
module and the various desired setpoints with the
corresponding DC voltage inputs for both VAV and CV
applications.
For complete application details of the module, refer to
Engineering Bulletin UN-PRB001-EN.
Note: Refer to wiring notes,
Figure 27 or
Figure 27 or Figure 33, p. 57
Figure 32, p. 56
RT-SVX35H-EN
for