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3. The distance between water heater and surrounding wall or other shelter objects can’t be too
small. The installation space should satisfy the drawing requirement.
4. The water heater should be installed at the solid place uprightly. Fix the water heater with
ground bolt if necessary.
5. There should be tap water pipe, joint of hot water pipe and floor drain nearby the water heater
for water supply for water tank, hot water supply and water drainage.
6. Condensate water drainage: connect the drainage hose to the drainage hole on the unit accord
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ing to the drawing tightly and then lead to drainage hose to proper place for discharge.
3.5 Water pipe connection
1. Pipeline preparation
Adopt the special pipe for the hot water exit pipe of water heater. S2.5 series PPR pipe with the
external diameter of dn20 are suggested. If adopt other similar insulated pipe materials, you can
select it by referring to above external diameter and the pipe thickness. Aluminium pipe are not
suggested to be adopted.
2. Installation of water inlet pipe and water outlet pipe of water tank
The water inlet pipe must be installed with safe device, strainer and cut-off valve, and the instal
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lation sequence must be the same with the sketch map of unit installation. A cut-off valve must be
installed on the water outlet pipe.
For the convenience of drainage or clean for water tank, you are suggested to install a three-way
valve and a cut-off valve at the water outlet of water tank.
3. Installation of drainage pipe
Take out the choke plug of drainage outlet, and then connect the drainage outlet and the floor
drain with pipeline. The position for the connection end for drainage pipeline and floor drain
should be lower than the bottom part of water tank; otherwise, the water can’t drained complete
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ly. A cut-off valve must be installed at the drainage pipeline, and the cut-off valve must be installed
at the position where is convenient for the operation.
