Unit Control 
 
1 Installation Example 
CASE 1: Connecting Under-floor Coil for Heating and Cooling
 
 
Notes: 
① 
The two-way valve is very important to prevent dew condensation on the floor and radiator 
while cooling mode; 
② 
Type of thermostat and specification should be complied with installation of this manual; 
③ 
The bypass valve must be installed to secure enough water flow rate, and should be installed at 
the collector. 
CASE 2: Connecting Sanitary Water Tank and under floor coil