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Instantaneous Hot Water Piping Works
These appliances cannot be linked.
Precaution of piping works
1. Be sure to connect a return pipe to circulate the hot water. (A one-way pipe is not allowed.)
2. The circulation pipe shall not be longer than 60 m (back to base), with no more than 20 bends. (Contact
the relevant waterworks department for direct connection to city water at a distance of over 30m.)
3. Piping diameter shall be as follows:
Forward
Return
4. Limit of height differential is as follows.
* In this case, 196 kPa or more is required as the water
supply pressure at the appliance inlet.
5.Since there occurs improper circulation, do not conduct two routes of piping.
[For KM3211WHQ]
R3/4
R1/2
Within 5 m
Appliance
Appliance
Appliance
Within 5 m
Appliance
63
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