Siemens 125-1957 User Manual
APOGEE Unit Vent Controller
⎯
0 to 10V Output Owner’s Manual
2
Siemens Building Technologies, Inc.
24 V-AC
LAN
TRUNK
COVER
BST
C
H
+
-
S
RX
TX
RTS
DO 1 DO 2
DO 3 DO 4 DO 5 DO 6
NO C NO C NO C NO C NO C NO C
DO 7
NO C
DO 8
NO C
NO C
DI 3
DI 2
AI 3
+ -
AO 1
DI 4
+ -
AO 2
+ -
AO 3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
CONTROLLER
BOARD
POWER
TRUNK
TERMINATIONS
TRANSMIT LED
RECEIVE LED
BST LED
LAN
TRUNK
TERMINATIONS
INPUT / OUTPUT TERMINATIONS
DO LEDS
MOUNTING
HOLE
(2)
MOUNTING
RAIL
ROOM TEMPERATURE
SENSOR / MMI PORT
TEC0197R3
C H
+
-
S
Figure 1. Unit Vent Controller - 0 to 10V Output.
Hardware Inputs
Analog
• Averaging air temperature sensor
• Room temperature sensor
• Room temperature setpoint dial (optional)
Digital
• Low Temperature Detection Thermostat (LTDT)
• Night mode override (optional)
• Wall switch (optional)