16
General: HVAC Controller Installation
Introduction
Friedrich HVAC Controllers enable wireless thermostat control of most HVAC units.
The illustration below indicates the various ports available on the HVAC Controller.
Refer to the appropriate page in this manual for wiring instructions for your specific
HVAC unit.
In order to provide light controls, the controller needs to be powered with 24vac
at J3. This will allow the controller to provide occupancy based outputs for light
controls J9.
Friedrich HVAC CONTROLLER
C
R
W
Y
OB
AUX2
GL
GH
12V
GND
J10
OUT
IN
OCCUPANCY OUT
JUMPER
3
6
2
5
1
4
J5
Jumpers
V
RX
J4
J6
J2
J11
J3
J9
ANALOG IN / OUT
DAC
TX
GND
O2
I2
O1
I1
GND
GND
O0
I0
18
17 16
15
14 13
12
11 10
9 8
7
6 5
4
3 2
1
+
12 VDC
OUTPUT