203
o
After days of holiday have been set, heat pump will stop and only resume operation at the end of holiday
countdown.
Start condition:
o
Holiday timer set and the holiday timer start
* The day holiday mode was set is counted as day 1.
Stop condition:
o
OFF/ON button is pressed.
o
Holiday timer is reached.
14.24 Dry Concrete
Purpose
Provide heat to floor heating panel and dry the wet concrete during installation.
Setting condition:
o
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
Control details:
o
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.
* This temperature is set at zone temperature. If system is 2 zones, both zone target temperature is set as
same temperature.
o
Heat pump will start heat mode operation to room side with received target water outlet temperature.
* Heat pump will operate according to Heat pump Target Water Temperature.
o
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
concrete function.
o
3 ways valve and booster heater will turn OFF and 2 ways valve will turns ON.
Cancel condition:
o
Dry concrete mode is complete and OFF signal is received.
o
OFF signal is received by pressing OFF/ON button.
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
Abnormal flow
Normal flow
Normal case
Flow rate < 7 l/min or ≥ 69 l/min
≥ 7 l/min
During Deice Operation
Flow rate < 12 l/min or ≥ 69 l/min
Flow rate ≥ 12 l/min
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.
