Frost Protection; Error Messages - Danfoss FH-CWD Instruction

Instruction FH-CWD Thermostat

7. Frost protection

Using the Frost Protection Mode instead of turning
the thermostat OFF completely may protect against
damages due to low temperatures. The room tem-
perature will be maintained around 5 °C.
Fig. 1 .
• Turn OFF the thermostat by pressing
• Press M Fig.1  for 3 seconds and release.
• Select 01 (00= disabled).
If the room temperature is lower than 5 °C the heating
will be turned ON and will be shown in the display.
If the room temperature is higher than 7 °C the heating
is turned OFF.
Factory setting is 00.

8. Error messages

E1 will be displayed when room sensor failure.
E2 will be displayed when floor sensor failure. E2
will be read when pressing M Fig. 1  to check floor
temperature.
Any case, all relay output would be turned off.
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Produced by Danfoss Floor Heating Hydronics 05.2011 VI.CU.B2.02