8. INSTALLATION Of AIR DUCTS
9. WIRE CONNECTION
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40
Condensing water
drain hose
Do not put the end of the condensing water drain hose/pipe into water.
If the heat pump boiler is connected with air ducts it should be DN 180mm
for pipes or 200mm internal diameter when using flexible hoses.
Minimize the air resistance caused by the duct work or flexible hose:
- Minimize the length of the air duct.
- Maximize the diameter of the air duct.
- Minimize curves, bents and restrictions in the air duct/hose.
As a rule of thumb; max length of total air system should be shorter than 6
meter.
Ensure that there are no air leaks.
Make sure the ducts are easy to disconnect from the top cover. The top cover
needs to be removed periodically, to be able to perform the necessary
maintenance.
Make sure that there is nothing in the duct and that the air flow is smooth.
More air resistance will lead to decrease of the capacity and lower COP
of the heat pump boiler.
The power supply wire is 3 x 1.5 mm².
For each heat pump boiler an exclusive, separate electrical circuit with a
safety switch is needed. The current of the fuse should be 16A.
• This equipment must be earthed and installed with a ground fault
switch. It can possibly cause electrical shock, injury and property
damage if grounding is not perfect.
• The electrical supply needs to be done with a proper earthed
connection.
Condensing water
drain hose
Illustration 7