OPTIMAX HE 18 OV
4.3 Hydraulic diagram
16
278
193
154
Key
7
Gas inlet
10
CH flow
11
CH return
16
Premix fan assembly
44
Gas valve
154
Condensate outlet pipe
10
7
fig. 28
161
Heat exchanger
186
Return sensor
193
Siphon
278
Double sensor (Safety + Heating)
Cod. 3540M162 - 02/2008 (Rev. 00)
11
161
186
Drain off
valve
44
33