Holiday Mode; Dry Concrete; Flow Sensor - Panasonic WH-ADC0309H3E Service Manual

Control content:

If start condition is fulfilled, indoor will receive the voltage signal from optional PCB. Indoor will send the rate
value to outdoor unit.

Outdoor will change the current limit according to the percentage receive from indoor unit.

12.28 Holiday Mode


Purpose:
Promotes energy saving by allowing the user to stop the system during holiday and enables the system to
resume at the preset temperature after holiday.

Control details:
Indoor operate the unit according running mode request. Target temperature will follow holiday setting
o
temperature.
 If heat mode request is receive, Target Water Out Temperature will change according to holiday shift
temperature set.
[If heat is set OFF at holiday, unit, water pump and zone control will OFF]
 If tank mode request is receive, Target Tank Set Temperature will change according to the holiday tank
shift temperature set.
[If tank is set OFF at holiday, heat pump and tank heater will OFF]
After days of holiday have been set, heat pump will stop and only resume operation at the end of holiday
o
countdown.

Start condition:
Holiday timer set and the holiday timer start
o
* The day holiday mode was set is counted as day 1.

Stop condition:
OFF/ON button is pressed.
o
Holiday timer is reached.
o

12.29 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.
o
Parameters are possible to set up to 99 days with different target set temperature
o

Control details:
Dry concrete mode will be activates when select ON from service setup.
o
Once start dry concrete function, remote control will send step 1 setting temperature to indoor unit.
o
* 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.
o
* 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.
o
Each preset data will be send every day until dry concrete mode is complete, unit will turns OFF and exit dry
o
concrete function.
3 ways valve and booster heater will turn OFF and 2 ways valve will turns ON.
o

Cancel condition:
Dry concrete mode is complete and OFF signal is received.
o
OFF signal is received by pressing OFF/ON button.
o

12.30 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 status 2~6 on Anti-freeze deice
Abnormal flow
Flow rate < 7 l/min or ≥ 69 l/min
Flow rate ≥ 7 l/min
124
Normal flow
≥ 7 l/min
< 7 l/min