3. Mount and reassemble the thermostat.
= Screw holes for mount and reassemble the ther-
mostat.
▪
Fasten the thermostat to a socket or an exterior wall
box by driving the screws through the holes in each
side of the thermostat.
▪
Install the frame, display module, and front cover in
the reverse order of disassembly.
Make sure to carefully put the display module in
place and do not over-tighten the screws.
4. Turn on the power supply.
Initially main supply the thermostat for 15 hours to fully
charge the battery. The current time and day is then kept
for 100 hours if mains supply is off. All other settings are
stored permanently.
ECtemp 550
Installation Guide
11
