ES3, ES4 & ES6 Instructions. V1.06 Page 7 August / 2014
Installation
Requirements
• These instructions must be read and fully understood before commencing the installation. If
in doubt, or in need of further guidance please ring Zip on 0845 6 005 005 / 0345 6 005 005.
• Zip InLine water heaters must be installed by a competent person familiar with electric
instantaneous water heaters.
• Installations must comply fully with UK Water Regulations and any Local Authority requirements.
• The electrical installation including earthing and cross bonding should comply with current IEE
regulations and any Local Authority requirements.
• Zip InLine water heaters must be installed according to the specication on the rating plate and
the technical specications.
• To protect the appliance, a circuit breaker or fuse must be tted with a rating suitable for
the nomi nal current of the appliance. (See Technical Data Section on page. 5).
• The appliance must be permanently connected to the supply through an isolating switch
with a contact separation of at least 3mm in all poles and be protected by a suitably rated
RCD.
• The cross sectional area of the connection cable must be in accordance with the power
rating of the appliance and the specic requirements of the installation site.
• Take care to protect the wiring from damage during installation and ensure that any
uninsulated wiring is not directly accessible after installation.
• Check that the power supply is switched off prior to electrical connection.
Installation site
• The installation site must be free from frost at all times.
• For maintenance work a shut off valve should be installed in the water supply line to the
heater.
• The unit should be positioned as close as possible to the outlet to minimise heat loss. The
recommended maximum distance is 0.5 meters.
• When considering the location of the heater, consideration should be given to the safe and
visible disposal of any water resulting from leaks and seepage.
This is particularly relevant when the heater is located in a cupboard or any concealed
location.
• For guidance please call Zip Heaters (UK) Ltd on 0845 6 005 005 / 0345 6 005 005.
• Hot and cold water connecting pipes should be WRAS approved and of copper or steel
construction. Plastic pipes may only be used if conforming to DIN 16893 Series 2.
• The specic resistance of the supply water must be >1300Ωcm at 15°C for ES3 and
>800Ωcm at 15°C for ES4 and ES6. The specic resistance can be checked with the local
water supply company.
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