Trane IntelliPak 2 Series, Installation, Operation And Maintenance Manual

Page: 84 / 220

84 RT-SVX24Q-EN
– OA Bypass Dampers - Open (if so equipped)
– Exhaust Bypass Dampers - Open (if so
equipped)
• P PU UR RG GE E sse eq qu ue en ncce e “ “D D” ”
Possibly this sequence could be used for
purging the air out of a building before coming
out of Unoccupied mode of operation on VAV
units or for the purging of smoke or stale air if
required after a fire.
– Supply Fan - On
– Supply Fan VFD - Max (if so equipped)
– Exhaust Fan - On; Exhaust Dampers - Open (if so
equipped)
– OA Dampers - Open; Return Damper - Closed
– Heat - All heat stages off; Mod Heat output at 0
VDC
– Occupied/Unoccupied/VAV box output -
Energized
– VOM Relay - Energized
– Preheat Output - Off
– Return Fan - On; Exhaust Dampers - Open (if so
equipped)
– Return VFD - Max (if so equipped)
– OA Bypass Dampers - Open (if so equipped)
– Exhaust Bypass Dampers - Open (if so
equipped)
• P PU UR RG GE E w wiitth h d du ucctt p prre essssu urre e cco on nttrro oll sse eq qu ue en ncce e “ “E E” ”
This sequence can be used when supply air
control is required for smoke control.
–
Supply Fan - On
– Supply Fan VFD - (If so equipped) Controlled by
Supply Air Pressure Control function; Supply Air
Pressure High Limit disabled
– Exhaust Fan - On; Exhaust Dampers Open (if so
equipped)
– OA Dampers - Open; Return Damper - Closed
– Heat - All heat stages off; Mod Heat output at 0
VDC
– Occupied/Unoccupied/VAV box output -
Energized
– VOM Relay - Energized
– Preheat Output - Off
– Return Fan - On; Exhaust Dampers - Open (if so
equipped)
– Return VFD - Max (if so equipped)
– OA Bypass Dampers - Open (if so equipped)
– Exhaust Bypass Dampers - Open (if so
equipped)
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 43. Temp vs. resistance
Temp (°
F)
Resistance
(in. 1000
Ohms)
Temp (°
F)
Resistance
(in. 1000
Ohms)
-40 346.10 71 11.60
-30 241.70 72 11.31
-20 170.10 73 11.03
-10 121.40 74 10.76
-5 103.00 75 10.50
0 87.56 76 10.25
5 74.65 77 10.00
10 63.80 78 9.76
15 54.66 79 9.53
20 46.94 80 9.30
25 40.40 85 8.25
30 34.85 90 7.33
35 30.18 100 5.82
40 26.22 105 5.21
45 22.85 110 4.66
50 19.96 120 3.76
55 17.47 130 3.05
60 15.33 140 2.50
65 13.49 150 2.05
66 13.15 160 1.69
67 12.82 170 1.40
68 12.5 180 1.17
69 12.19 190 0.98
70 11.89 200 0.83
Emergency Stop Input
A normally closed (N.C.) switch 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 Human Interface and the unit must be
manually reset. Refer to the appropriate illustrations in
Figure 63, p. 90 and Figure 62, p. 89 for the proper
connection terminals in the unit control panel. The
switch must be rated for 12 ma @ 24 VDC minimum.
IIn nsstta alllla attiio on n