
ENGLISH-11
01
PREP
AR
ATION
Functional diagram
Tw3
Tw2
Tw1
①
②
⑫
⑬
⑥
⑦
⑤
⑨
④
⑩
⑧
⑪
⑭
③
No.
Note
①
Service valve(R)
②
Strainer
③
Flow switch
④
Heat exchanger
⑤
Backup heater
⑥
Pressure relief valve
⑦
Air-vent valve
⑧
Variable Speed water pump
⑨
Expansion tank
⑩
Manometer
⑪
Service valve(L)
⑫
Water temp . sensor 1
⑬
Water temp . sensor 2
⑭
Water temp . sensor 3