elv FHT8-Set - 10 Special Functions

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10. Special functions
The heating control has several special functions.
To open the special functions menu press the “PROG” key
until“Sond”isdisplayed ontheLCdisplay.Thenrelease
the “PROG” key again.
The special functions menu can only be opened if the heat-
ing control is in the normal operating mode (time and date
displayed on the left side of the display, temperature dis-
played on the right side).
Thefollowingspecialfunctionsareavailable:
CALCSettingthetimeforthedecalcicationcycle
°C°F Selectingthetemperatureunit(°Cor°F)
dAt Setting of date and time
CodEChangingthesafetycodeforradiotransmissionand
setting of codes for new valve operating mecha-
nisms, respectively
An A Setting the number of valves controlled by the heat-
ing control and extending the system, respectively
SYnCSynchronisingthevalveoperatingmechanisms
tESt Testing of radio transmission
StEL Displaying the valve position
t-An Switching between display of desired temperature
and actual temperature
OFFS Setting the offset (this option is only displayed, if
there is more than one valve operating mechanism)
After 30 seconds without anything happening,
programming or special functions will close auto-
matically.