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GENERAL PRODUCT DESCRIPTION
APPROVALS
Zip InLine ES3, ES4 and ES6 instantaneous water heaters are compact electronically controlled
instantaneous water heaters for hand washing.
This small instantaneous water heater is intended to provide economical heating of water for a
wash basin when installed together with a sanitary water fitting. When the hot-water tap is opened,
the heater switches itself on automatically when the minimum water flow rate is exceeded and
heats the water as it passes through the appliance.
The heater is pre-set in the factory to an outlet temperatu re of about 38°C, which is ideal for
hand washing. When this temperature is reached, the electronic regulator reduces the power in
order to ensure that the outlet temperature does not exceed this value. This automatic temperature
regulation means that it is only necessary to open the hot water tap to obtain water at a constant,
safe temperature for washing hands. If the set outlet temperature is not reached, slightly reduce the
flow of water from the tap. Cold water may be added if a lower temperature is required.
If the flow rate is too low or if the hot water tap is closed, the appliance switches itself off
automatically. For an optimum flow of water, always fit the special aerator insert supplied with the
appliance. This regulator should be inserted into the threaded retainer on the tap outlet.
The maximum possible outlet temperature is determi ned by the temperature of the incoming
water, the flow rate and the heating power of the heater.
The temperature set point and flow rate can be preset, by an authorised technician, inside the
appli ance to achieve an outlet temperature between about 30°C and 43°C.
Power consumption is also regulated based on outlet temperature to ensure the required temperature
is achieved exactly to the degree and irrespective of fluctuations in voltage and water pressure.
The maximum inlet temperature of 70°C is suitable for use with preheated water e.g. from solar
heating systems.
Zip InLine ES3, ES4 and ES6 are VDE approved to the LVD and EMC directives and CE endorsed.
Zip InLine ES3, ES4 and ES6 have been examined, tested and found when correctly fitted to comply
with the requirements of the United Kingdom Water Regulations / Byelaws (Scotland). The products
are listed under the WRAS (Water Regulations Advisory Scheme) Water Fittings and Materials
Directory.
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