elv FHT8-Set - Mounting the FHT8 V Valve Operating Mechanism

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8. Mounting the „FHT8V“ valve operating mechanism
a) Removing the old thermostat
•Remove the old mechanical
thermostat.
•If necessary, use multigrip pli-
ers to loosen seized screws by
turning them counterclockwise.
b) Inserting the the batteries into
the valve operating mecha-
nism
• Remove the battery compart-
ment cover of the valve oper-
ating mechanism by sliding it
down.
•InserttwoAAbatteriesintothe
battery compartment.
Make sure to insert the batteries
with the correct polarity, see illus-
tration in the battery compartment
and figure on the right
side.
•“C1”isdisplayedrst,followed
by a twodigit number, “C2”,
and another two-digit number.
These two numbers are the
currently stored safety code of
the valve operating mechanism
(e.g. 11 and 22 = safety code
1122).