Friedrich FSHSW36A3A Installation And Operation Manual page 49

Wired Controller(Optional)
3.11 Other Functions
a. Lock
Upon startup of the unit without malfunction or under the "Off" state of the unit, press ▲ and ▼ at
the same time for 5s till the wired controller enters the Lock function. In this case, LCD displays
After that, repress these two buttons at the same time for 5s to quit this function.
Under the Lock state, any other button press won't get any response.
b. Memory
Memory switchover: Under the "Off" state of the unit, press Mode and ▲ at the same time for
5s to switch memory states between memory on and memory off. When this function is activated,
Memory will be displayed. If this function is not set, the unit will be under the "Off" state after power
failure and then power recovery.
Memory recovery: If this function has been set for the wired controller, the wired controller after
power failure will resume its original running state upon power recovery. Memory contents: On/
Off, Mode, set temperature, set fan speed and Lock function.
4 Installation and Dismantlement
4.1 Connection of the Signal Line of the Wired Controller
● Open the cover of the electric control box of the indoor unit.
● Let the single line of the wired controller through the rubber ring.
● Connect the signal line of the wired control to the 4-pin socket of the indoor unit PCB.
● Tighten the signal wire with ties.
● The communication distance between the main board and the wired controller can be up to
20 meters ( the standard distance is 8 meters)
4.2 Installation of the Wired Controller
PVC Pipe
Fig.4.1 Accessories for the Installation of the Wired Controller
No. 1
Socket box
Name embedded
in the wall
Table 4.1
2 3
Soleplate of
Screw
the Wired
M4X25
Controller

1 2 3 4
4
Front Panel
of the Wired
ST 2.9X6
Controller
.
5
5
Screw