159
o
Boiler signal turns OFF when
Outdoor ambient > Outdoor Ambient Set + [2°C]
OR
Heat pump not operates at tank side.
OR
Boiler prohibit flag = 1
Boiler prohibit flag control
Purpose:
o
For product safety. Boiler signal is OFF when water temperature is too high.
Start condition:
o
Water outlet ≥ 85°C continues for 5 minutes.
o
Water inlet ≥ 85°C continues for 5 minutes.
o
Zone1 water temp ≥ 75°C continues for 5 minutes.
o
Zone2 water temp ≥ 75°C continues for 5 minutes.
Contents:
After start condition fulfilled, set boiler prohibit flag = 1
Cancel condition:
o
After 30 minutes from start condition fulfilled.
Contents:
Set boiler prohibit flag = 0
Smart Bivalent Control Mode:
1 When this mode is selected by installer, it will decide whether to use heat pump or boiler to heat up room and
sanitary tank.
Remote control setting value:
1 Energy price → Electricity price 1 ~ 10 = (Range : 0 ~ 999.9 */kWh)
Energy price → Boiler price = (Range : 0 ~ 999.9 */kWh) → Boiler efficiency = (Range : 0 ~ 99%)
2 Season setting → Season 1 ~ 4 = (Range : Jan ~ Dec)
3 Schedule setting → Season 1 ~ 4 → Pattern 1 ~ 4 → Start time = (Range : 12am ~ 11pm) → Price =
(Range : 0 ~ 10)
* Installer is to input all the remote control setting as shown above based on regional electricity price rate and
various season.
Control detail:
o
Usage of heat pump or boiler to heat up is decided based on which heat source is cheaper as a result of the
calculation from these remote control setting.
o
It varies depends on heat pump’s efficiency at various outdoor ambient condition and the boiler’s efficiency.
14.22 External Room Thermostat Control (Optional)
Purpose:
1 Better room temperature control to fulfill different temperature request by external room thermostat.
Recommended external room thermostat:
Maker
Characteristic
Siemen (REV200)
Touch panel
Siemen (RAA20)
Analog
Connection of external room thermostat:
Wire Connection and thermo characteristic of Siemen REV200:
Setting
L/L1 (H)
Heat Thermo
L/L2 (C)
Cool Thermo
Set Temp < Actual Temp
Open Circuit
OFF
Short Circuit
ON
Set Temp > Actual Temp
Short Circuit
ON
Open Circuit
OFF
