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Controller led indicators, Temperature sensors, Room temperature sensor – Siemens 125-1957 User Manual

Page 14

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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.