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7. Special internal functions
The ‘interne Sonderfunktionen’ (special internal functions) menu contains the functions listed below.
Ö
To access the special functions menu, press the ‘PROG’ button until ‘
SOND
’ (for special functions) is
displayed on the LCD. Then release the ‘PROG’ button.
The special functions menu can only be accessed when the control centre is in the normal operating mode.
The following special functions are available:
CALC
Setting the time for the decalcification cycle
°C°F
Selecting the temperature unit (°C or °F)
dAt
Setting the date and time
CODE
Changing the radio transmission security code or setting codes for new valve operating mechanisms
no H
Setting the number of valves controlled by the controller or extending the system
SYNC
Synchronising the valve operating mechanisms
TEST
Test function for radio transmission
STEL
Displaying the valve position
CENT
Default setting for the radio connection to the control centre
OFFS
Offset setting (this option appears, if more than one valve operating mechanism is controlled)
T-AL
Programming the minimum temperature for the low temperature alarm
a) Setting the time for the decalcification cycle,
‘
CALC
’
The valve is completely opened and closed once a week. This prevents deposits from blocking the valve. The time at which
the decalcification cycle is carried out can be changed using the special ‘CALC’ function.
• Keep the ‘PROG’ button pressed until ‘Sond’ (special) appears on the display. Then release the ‘PROG’ button.
• Use the scroller to select the special ‘CALC’ function.
• Confirm this by briefly pressing the ‘PROG’ button.
• Use the scroller to select the day of the week (arrow symbol above ‘
a
’ beneath the respective day of the week).
• Confirm this by briefly pressing the ‘PROG’ button.
• Set the time using the scroller.
• Confirm again by pressing the ‘PROG’ button; the weekday and the time for the decalcification cycle are automatically
saved. The FHZ1000 returns to the normal operating mode.
FHT 8W Heat Demand Relay
Installation and User Guide
Product Code EHC-FH06
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