User manual
14
Do not push the ON/OFF button on the 
Master controller after transferring priority 
of temperature selection to a Secondary 
controller as the system will shut down. 
Do Not Turn OFF 
the Master 
Controller 
Temperature priority can not be switched 
to another controller when the water is 
flowing through the water heater. 
Depending on the weather conditions 
and the length of the pipe between the 
heater and the tap in use, there may be a 
variation between the temperature dis-
played at the controller and the tempera-
ture at the tap. 
Do not clean the control with 
solvents or detergents. Use only a soft 
damp cloth. 
If a temperature 50
0
C or higher has been selected on a controller and priority of tem-
perature selection is transferred to another controller, then back again, the temperature 
on the controller will automatically drop to 50(or 42)ÂșC. If the set point is 50(or 42)
0
C or 
less it will not alter. This is a safety feature. 
 First      Another    First 
 Controller    Controller    Controller 
TEMPERATURE CONTROLS - INFORMATION 
48
0
C
Controller 1 
in use 
Controller 2 
cannot take 
priority 
40
0
C










