Unit Control 
 
Notes: 
① 
In this case, three-way valve should be installed and should be complied with installation of this 
manual; 
② 
Sanitary water tank should be equipped with internal electric heater to secure enough heat 
energy in the very cold days; 
CASE 3: Connecting Sanitary Water Tank and Heat Emitters for Heating and Cooling 
 
Two-way valve is very important to prevent dew condensation on the floor and radiator while cooling 
mode. 
2 Model Selection 
2.1 Speculations of Power Supply