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13.29 Demand Control (Optional PCB)
Remote control setting:
When Optional PCB connection select 'YES", Demand Control function can select "YES" or "NO".
Purpose:
After the demand control select YES, below control will activated.
o
0-10V Demand control
0-10V Demand control
Demand control is use to reduce the current usage of heat pump unit by third party device.
Control start condition:
Select “YES” at Demand control at installer menu.
0-10V input for this electrical current control is detected.
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.
13.30 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:
o
Indoor operate the unit according running mode request. Target temperature will follow holiday setting
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]
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.
