4
To switch the central heating ON or OFF (00 = OFF, 01
= ON) press the STEP button until LED 1 shows 3.
Use the adjustment buttons (=/-) to alter the current
value to the new value.
Press the STORE button to save the new value.
Press the MODE button until no decimal point is shown
in LED 1.
To change the central heating flow temperature
(variable between 20
°
C and 90
°
C) press the STEP
button until LED 1 shows 4.
Use the adjustment buttons (=/-) to alter the current
value to the new value.
Press the STORE button to save the new value.
Press the MODE button until no decimal point is shown
in LED 1.
PRESS MODE BUTTON UNTIL A FIXED DECIMAL POINT IS SHOWN IN LED 1
Fig. 1A
Fig. 2
LED 2 shows flow tempe-
rature
LED 2 shows return
temperature
LED 2 shows temperature
setting
2.5
VIEWING THE OPERATING PARAMETERS
Press MODE button until a flashing decimal point
is shown in LED 1.
Press STEP until LED 1
shows 1
Press STEP until LED 1
shows 2
Press STEP until LED 1
shows 6
