5
Fig. 1 - Water heater components
Water heater components
Description of the appliance
NOx identifies the group of the two most important nitrogen oxides:
- NO Nitrogen monoxide (not harmful to humans)
- NO2 Nitrogen dioxide (very harmful to humans and the envi-
ronment).
NOx is formed during combustion processes at high temperatures.
To reduce NOx emissions it is necessary to cool the flame.
The water inside the water heater, after have been heated by heat
exchanger, gets in the burner, cools the flame and gets out to the final
user.
The special burner cools the flame and check the airflow necessary
for the combustion, set up “cooled flames” avoiding the loss of ther
-
mal efficiency, generating an optimal combustion with low emissions.
The packaging of the water heater includes:
no. 1 wall mounting bracket with screws and plugs
no. 2
flange flues
no. 1 paper template
Legend
1. Gas valve
2. Limit thermostat
3. NTC probe
4. Ignition/detection electrode
5. Fan
6. Heat exchanger
7. Burner
8. Flowmeter
9. DHW input
10. Gas
11. DHW output
1
3
4
2
5
6
7
8
11
10
9
Hydraulic circuit
Fig. 2 - Hydraulic circuit
DHW input
DHW output
NTC probe
Limit thermostat
Fan
Heat exchanger
Burner
Flowmeter
Delivery limiter
Gas valve
Gas
