4.Installation Instruction
4.3 Pipe connection
4.3.1 Water pipe connection diagram
4.3.2 Water pipe connecting instruction
* Please fix the unit on the level ground first, then to install the inlet and outlet pipe.
*Please connect the pipes and parts as above request. If ambient temperature for working and installation is
below 0℃, all the pipes must be heat preservation treated.
* In the process of piping connection, the dust or other debris should be prevented from entering the unit.
*Do not use iron pipe to install water heater. The water system shall use brand-new pipelines with
heat-resistant and anti-corrosion and complying with drinking water standard. Do not adopt PVC water pipe with
peculiar smell.
* After installation, should check the water leakage for all the pipe connection.
4.3.3 Air duct installation instruction
Air duct is optional part. You can choose to install it or not. If you choose to install the air duct, you should
choose the air duct as short as possible.
4.4 Electrical schematic and circuit connection
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