Controller led indicators, Temperature sensors, Room temperature sensor – Siemens 125-1957 User Manual
Page 14
APOGEE Unit Vent Controller
⎯
0 to 10V Output Owner’s Manual
4
Siemens Building Technologies, Inc.
24 V-AC
C
E
H
DO 1 DO 2 DO 3 DO 4 DO 5
NO C NO C NO C NO C NO C NO
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 1
COMMON
24 VAC HOT
CONTROLLER POWER WIRING
NOTE: NO EARTH GROUND CONNECTION
TEC0253R2
FLN TRUNK
+ -
S
(SHIELD)
(SHIELD)
(+)
(+)
(-)
(-)
TEC0470R1
Figure 2. Power Wiring.
Figure 3. Communication Wiring.
Controller LED Indicators
The controller has eleven Light Emitting Diode (LED) indicators. See Figure 1. Table 2 lists
the type, the abbreviation on the controller, and the indication of each LED.
Table 2. Controller LEDS.
LED Type
Label
(if present)*
LED
Number
Indication
DO
LED 1 to
LED 8
1 to 8
Indicates the ON/OFF status of the
DO associated with it. A glowing LED
indicates that the DO is energized.
Receive
RX
9
Indicates, when flashing, that the controller is
receiving information from the field panel.
Transmit
TX
10
Indicates, when flashing, that the controller is
transmitting information to the field panel.
Basic Sanity Test
BST
11
Indicates, when flashing ON and OFF once
per second, that the controller is functioning
property.
*Some LED labels and numerals may be hidden by the controller cover.
Temperature Sensors
Temperature sensors used with the Unit Vent Controller—0 to 10V Output include an
electronic room, mixed air or discharge air temperature sensor.
Room Temperature Sensor
The Terminal Equipment Controller room temperature sensor connects to the controller by
means of a cable pre-terminated at both ends with a 6-conductor RJ-11 plug-in connector.
See Figure 1 for the location of the room temperature sensor/Man-Machine Interface (MMI)
port.