Daikin RZQ125B7W1B [106/326] Freeze prevention function

Daikin RZQ100B7W1B [106/326] Freeze prevention function
General Functionality ESIE05-03
2–22 Part 2 Functional Description
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1.15 Freeze Prevention Function
Purpose In order to avoid formation of ice on the indoor unit heat exchanger in cooling and dry mode, the
system automatically starts up a freeze prevention cycle when a number of specific conditions are
fulfilled.
Freeze Prevention
start conditions
Freeze prevention start decided by the indoor unit (factory setting):
Freeze Prevention
stop conditions
Freeze prevention stop decided by the indoor unit (factory setting):
P Indoor coil temperature > 7°C for 10 minutes continuous
Parameters
Reference Please refer to "Outdoor Field Settings" in Part 4 "Commissioning and Test Run" for details on possible
use of EDP room settings in case of low latent heat applications. (See page 4-21)
P Indoor coil temperature -1°C for 40 minutes accumulated
P Indoor coil temperature < A°C for 1 minute continuous
P Compressor is running for minimum 8 minutes since
operation start or end of previous freeze up cycle.
OR
&
FAQ FHQ All except FAQ & FHQ
A -1°C -3°C -5°C
ESIE05-03.book Page 22 Wednesday, April 6, 2005 4:09 PM

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