5.1 Before installation read and comply with the following
Comply with all safety provisions. Do not tamper with the earthing connections as indicated
on the casing. To secure the casing when closing the cover, use the provided M4 screw and
washer provided to ensure earth continuity on the casing.
The Installer
’
s Responsibility
-
in accordance with Part L of the Building Regulations, all hot and
cold water pipes should be labelled and insulated to the current standards.
Installation should only be carried out by a qualified and competent plumbing installer and a qualified and
competent electrical installer in accordance with the current document Building Regulations, Legislation
and Standards.
It is the installer
’
s responsibility to ensure that the place of installation and wall is suitable.
An unsuitable location or provision of adequate supplies (Primary Heating and Cold Water mains) will not
justify any warranty or fault claim;
•
The wall must be capable of bearing the weight of the HIU filled with water permanently
•
Locations where access is restricted for maintenance, see page 3.
•
The HIU is only for WALL MOUNTING in the orientation shown in this manual.
•
Locations where criminal damage or illegal tampering cannot be reasonably preventable.
•
Locations where discharge pipe is not able to be safely or legally installed and connected
•
Supplies which are not suitably clean, and free from contaminants.
•
Supplies which contain chemical contaminants.
•
Supplies with inadequate flow or pressure (less than 1.5 bar)
•
All cold and hot water pipes must be labelled and insulated in line with Part L of the
Building Regulations.
•
On site precautions must be made by the installer to protect the unit from builders dust and debris.
Cold water mains supply should be protected from excessive high pressures.
A Pressure Reducing Valve is recommended and pre
-
set to 3 bar.
•
Wall fixing bolts are to be provided by the installer and be suitable to bear the weight of the HIU
permanently when full of water.
•
The position of the HIU should be where the pipe run lengths to DHW outlets are kept to a minimum.
SECTION 5
-
Installation
5.2 Consider which installation method is to be used.
1.
HIU as delivered to site.
2.
HIU and stand off brackets as delivered to site
3.
HIU JIG at First Fix Pipe work stage, with the HIU to follow later.
4.
HIU JIG and stand off brackets, with the HIU to follow later.
Page 7
5.3 General installation notes
•
Ensure all hot and cold water pipes are labelled and insulated in accordance with Part L of the build-
ing regulations.
•
The HIU can only be installed in one orientation, with the heat network connections at the top, and
in a vertical position.
06/21 E&OE
Before removing the cover turn off the power supply at the mains (fused spur 230v 50Hz).
