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Siemens Switzerland Ltd User manual RVS61.843 CE1U2355en_02
HVAC Products 5 Handling 23. November 2007
Manual defrost of HP / reset
The RESET button triggers different functions, depending on the number of
seconds the button is kept depressed.
When kept depressed for more than 3 seconds, the manual defrost function
is activated.
Pressing the button for less than 3 seconds triggers a reset.
If an air-to-water heat pump is used, you can manually trigger the defrost function for
the evaporator.
After successfully completing defrosting, or on completion of the maximum permissible
defrost time and permitted number of defrost attempts, the heat pump is automatically
released again. For more information on the defrost function, refer to page 116 ff.
Pending error messages from the heat pump are reset with this button. The preset
switch-on delay will be ignored to prevent undesirable waiting times during
commissioning or fault tracing.
This function should not be used in normal operation.
When releasing the button, the reset is made after 2 seconds.
Manual defrost of HP
HP reset
RESET
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