Daikin EWYQ230DAYN [387/524] Anti freeze function by pump control or heater tape

Daikin EWYQ230DAYN [387/524] Anti freeze function by pump control or heater tape
ESIE06-05 Functional Control for a Standalone Unit
Part 2 – Functional Description 2–161
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3.18.2 Anti-freeze function by pump control OR heater tape
Anti-freeze by
pump operation
Only when no heater tape is present (OP10 not installed).
Activation :
- If water temperature of inlet/outlet is <
PUMP ON SETP. °C
AND
-pump is off
Action:
Turn on pump.
Reset :
Reset function if water temperature gets >
reset setpoint.
Anti-freeze by
heater tape
Only when heater tape is present (OP10 installed).
Activation:
- If ambient temperature is < MOW -1.5 °C.
- AND evaporator pump is OFF
- AND 2nd evaporator pump is OFF
Action:
Turn on evaporator heater tape
Reset:
-If ambient temperature is >
MOW.
-OR evaporator pump is ON.
-OR 2nd evaporator pump is ON.
Heatertape
Ambient < MOW -1.5°C
And EvapPump=Off
And 2
nd
EvapPump=Off
Ambient => MOW
Or EvapPump=On
Or 2
nd
EvapPump=On
ON
OFF
Ambient < MOW -1.5 °C
And EvapPump=Off
And 2nd EvapPump=Off
Ambient => MOW
Or EvapPump=On
Or 2nd EvapPump=On

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