● Example 3.
The appliance installed in balcony or semi-enclosed space can charge cool and fresh air into room.
Inlet air from outdoor without duct, outlet air ducted to room. Air outlet duct length≤6m.
Fig.5.3
4. Installation/Usage Requirements (Please refer to the installation diagrams)
● The appliance should be placed vertical and stable. The water pipes, water filter, and one-way safety
valve should be installed in accordance with the national standards.
● Water filling: Turn on the water outlet and water inlet valve. When there is water comes out of the
outlet means the water tank is full. You can switch on the heater after that.
● The water quality should meet the following standards: Hardness (CaCO3) ≤200mg/L, Chloride ions
≤50mg/L, PH value 6.5~8.5, and you should clean the inner water tank regularly.
● If you remove the sediment dirt of the inner water tank regularly, it will improve the working
efficiency. Sewerage/drainage method: turn off the power and inlet water valve, open one of the water
outlet and sewage valve, and then the sewage and sediment will come out. Turn off the sewage valve
until discharge of the water finishes.
5. Pipeline System Connection
The appliance has an internal indirect coil that is available for connection to an external water heating
system where applicable, such as a solar energy system as shown below.
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