Install Instructions
13 | PIR Ready VT7300 Series-Installation Guide
Temperature vs. resistance chart for 10 Kohm NTC thermistor (R
25°C
= 10K±3%, B
25/85°C
= 3975K±1.5%)
ºC
ºF
Kohm
ºC
ºF
Kohm
ºC
ºF
Kohm
ºC
ºF
Kohm
ºC
ºF
Koh
m
-
40
-40
324.3197
-20
-4
94.5149
0
32
32.1910
20
68
12.4601
40
104
5.3467
-
35
-31
234.4009
-15
5
71.2430
5
41
25.1119
25
77
10.0000
45
113
4.3881
-
30
-22
171.3474
-10
14
54.1988
10
50
19.7390
30
86
8.0694
50
122
3.6202
-
25
-13
126.6109
-5
23
41.5956
15
59
15.6286
35
95
6.5499
55
131
3.0016
Status display
The VT7300 series wall-mount Terminal Equipment Controller features a two-line, eight-
character display. There is a low level backlight level that is always active and can only be
seen at night.
When left unattended, the Terminal Equipment Controller has an auto scrolling display that
shows the actual status of the system. There is an option in the configuration menu to
lockout the scrolling display and to only present the room temperature and conditional
outdoor temperature to the user. With this option enabled, no local status is given of mode,
occupancy and relative humidity.
Each item is scrolled one by one with the back lighting in low level mode. Pressing any key
will cause the back light to come on to high level. When left unattended for 10 seconds after
changes are made, the display will resume automatic status display scrolling.
To turn on the back light to high level, press any key on the front panel. The back lit display
will return to low level when the Terminal Equipment Controller is left unattended for 45
seconds.
Sequence of auto-scroll status display:
ROOM &
HUMIDITY
SYSTEM
MODE
SCHEDULE
STATUS
OUTDOOR
TEMPERATURE
ALARMS
x.x °C or °F
XX % RH
Sys mode
auto
Occupied
Outdoor
x.x °C or °F
Service
If humidity
display enabled
Sys mode
cool
Stand-By
Network value only
Filter
RoomTemp
x.x °C or °F
Sys mode
heat
Unoccup
n/a
Window
If humidity
display is not
enabled
Sys mode
off
Override
n/a
% RH display is conditional to:
(Humidity display is model and configuration dependent)
Model with RH sensor built in
Display function can be enabled with RH display parameter. Displayed range is
10 to 90 % RH
Outdoor air temperature
Display is only enabled when outdoor air temperature network variable is
received.
Occupancy status