Daikin EWAA0 DAV3P Series Installer's Reference Manual page 167

Water pipe freeze prevention
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
# Code
N/A [E-0D]
NOTICE
If you add glycol to the water, you also need to install a flow switch (EKFLSW1).
Only relevant for installations with water piping outdoors. This function tries to
protect outdoor water piping from freezing.
# Code
[9.7] [4-04]
NOTICE
If the system does NOT contain a backup heater, then:
▪
Make sure that the room antifrost control is activated ([2-06]=1).
▪
Do NOT change the default room antifrost temperature [2-05].
▪
Make sure that the water pipe freeze prevention is activated ([4-04]≠2).
NOTICE
Water pipe freeze prevention. Even if you turn OFF space heating/cooling operation
([C.2]: Operation > Space heating/cooling), water pipe freeze prevention –if
enabled– will remain active.
Description
Glycol Filled system: Is the system filled
with glycol?
▪ 0: No
▪ 1: Yes
Description
Water pipe freeze prevention:
▪ 0: Intermittent: Do NOT use.
▪ 1: Continuous
▪ 2: Off
11 Configuration
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Installer reference guide
167