DE DIETRICH INNOVENS MCA 15 - MCA 25 - MCA 25_28 MI - Manual (Page 11)

3.2 Main parts
1 Flue gas discharge pipe
2 Casing/air box
3 Outlet for measuring combustion gases
4 Mixer pipe
5 Heating flow hose
6 Air intake silencer
7 Box for the control PCBs
8 Combined venturi and gas valve unit
9 Flow end hydrobloc
10 Safety valve outlet pipe
11 Siphon
12 Control panel
13 Shunt pump
14 Return end hydrobloc
15 Plate heat exchanger (DHW circuit) (Only on models with
domestic hot water production)
16 3-way valve
17 Condensate receiver tank
18 Fan
19 Heat exchanger (Heating circuit)
20 Expansion vessel
21 Ignition/ionization electrode
22 Air intake
T001867-C
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MCA 15 - MCA 25 MCA 25/28 MI 3. Description
23/08/2011 - 300024159-001-B 10