51
Figure 38
Figure 39
• In order to confirm the alarm, briefly press the ‘MAKRO’ button once.
• The exclamation mark at the beginning of the display line changes to a ‘checkmark’.
Figure 40
• Pressing the ‘
w
’ button twice returns you to the normal operating mode.
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Please note:
If no confirmation of the FHZ1000’s alarm signal occurs within 10 minutes, the FHZ1000 attempts to transmit
the alarm over the radio telephone dialler (if there is one). ‘Alarmwahl’ (alarm dialling) then appears on the
display.
After successfully transmitting the alarm signal, all alarms are automatically confirmed (exclamation mark changes to
a ‘checkmark’ and the tone signal is switched off).
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If the alarm could not be transmitted, then the alarm dialling is repeated every 10 minutes.
X
X
X
X
X
3. Low temperature alarm
If the temperature in a room goes below the programmed minimum temperature, the FHZ1000 (as described above)
sends out an alarm signal.
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Please note:
The low temperature alarm is not issued until approx. 1.5 hours after the last temperature change.
The minimum temperature relates to the current target value.
You can program a maximum temperature difference for this target value, above which the alarm should be triggered.
This temperature difference can lie in the range of 1°C to 5°C.
Example:
If, for instance, the comfort temperature in a room is 20°C and a temperature difference of 5°C has been
programmed, then an alarm will be triggered, if the temperature falls below 15°C.
If the time program changes to the lowering temperature, for instance 15°C, then the alarm will triggered when the
temperature drops below 10°C.
The temperature difference is programmed as follows:
FHT 8W Heat Demand Relay
Installation and User Guide
Product Code EHC-FH06
1
