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APPLIANCE INFORMATION
3.8
LAYOUT
1
2
3
4
5
Fig. 2
1
Condensing heat exchanger
2
Heat exchanger
3
Primary fan
4
Hot water temperature sensor
5
Control unit
6
Flue gas overheat sensor
7
Flue gas temperature sensor
8
Heat exchanger overheat thermostat
9
Frost protection
10
Sight glass
11
Ignition electrodes
12
Flue recirculation temperature sensor
8
13
Ionization sensor
14
Secondary fan
15
Pressure test point gas valve
16
Gas valve
17
Water valve with flow sensor and cold water temperature
sensor
18
Controller with LCD display
6 720 646 322 (2012/05)
6
7
8
9
10
11
12
13
14
15
16
17
18
6720646322-04.1V
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