Dry Concrete; Flow Sensor; Dhw Defrost Operation - Panasonic WH-ADF0309J3E5CM Service Manual

After days of holiday have been set, heat pump will stop and only resume operation at the end of holiday
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countdown.

Start condition:
Holiday timer set and the holiday timer start
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* The day holiday mode was set is counted as day 1.

Stop condition:
OFF/ON button is pressed.
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Holiday timer is reached.
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14.24 Dry Concrete


Purpose
Provide heat to floor heating panel and dry the wet concrete during installation.

Setting condition:
Dry concrete parameter can be set through remote control under system setup.
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Parameters are possible to set up to 99 days with different target set temperature
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
Control details:
Dry concrete mode will be activates when select ON from service setup.
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Once start dry concrete function, remote control will send step 1 setting temperature to indoor unit.
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* This temperature is set at zone temperature. If system is 2 zones, both zone target temperature is set as
same temperature.
Heat pump will start heat mode operation to room side with received target water outlet temperature.
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* Heat pump will operate according to Heat pump Target Water Temperature.
After complete day 1 setup operation, day 2 data will be send to indoor at 12.00am on the second day.
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Each preset data will be send every day until dry concrete mode is complete, unit will turns OFF and exit dry
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concrete function.
3 ways valve and booster heater will turn OFF and 2 ways valve will turns ON.
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
Cancel condition:
Dry concrete mode is complete and OFF signal is received.
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OFF signal is received by pressing OFF/ON button.
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14.25 Flow Sensor


The water flow sensor serves as an overload protector that shuts down the unit when the water level is detected
to be low.

Abnormal flow detection:
Sequence
Normal case
During Deice Operation

14.26 DHW Defrost Operation

User can select either enable or disable this DHW defrost operation from installer setup.

If DHW defrost is enabled, system will run defrost at Tank Unit if water tank temperature ≥ 40ºC & Water Inlet
≥ 35ºC and Room Air Conditioning Unit will continue in limited heating generation. Or else system will run defrost
at Room Air Conditioning Unit.

If DHW defrost is disabled, system will always run defrost at Room Air Conditioning unit at all time.
Abnormal flow
Flow rate < 7 l/min or ≥ 69 l/min
Flow rate < 12 l/min or ≥ 69 l/min
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Normal flow
≥ 7 l/min
Flow rate ≥ 12 l/min