4.3
Main Components
4
5
9
6
7215845 - 01 (08/14)
7
3
1.
Heat Exchanger
2.
Combustion Control Unit
3.
Condensate Trap
8
4.
Exhaust Tube
5.
Inlet Silencer
6.
User Interaction Controller
7.
Gas Cock
10
8.
Air Pressure Switch (21 & 24 model only)
9.
System Drain Cock
10.
Air Vent
1
2
Description of the Product
MainEco Heat
4
19