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Installation and User Instructions R02889-3 04/14
Page 9
Pre-Installation
- frost protection
The Quantum direct electric cylinders
are designed to be floor standing,
vertically mounted, indoors and in a
frost free environment. The cylinder
may be located on any flat and level
surface, provided it is sufficiently
robust to support the weight of the
cylinder when full of water (please see
technical data) and suitably accessible
for replacement/maintenance without
specialist tools or lifting equipment as
this will void the warranty conditions.
The position and orientation of the
cylinder should be such that easy
access is provided for servicing the
controls. A minimum distance of
400mm in front of the immersion is
recommended, to allow the
replacement of the immersion heater
should the need arise. When installing
the cylinder all labels should be clearly
visible and ensure that no pipework
hinders any work to be carried out on
the various cylinder components.
Particular care must be taken when
placing the cylinder in a garage or
outbuilding. All exposed pipe work
must be correctly insulated to avoid
frost damage.
CLEANING INSTRUCTIONS:
Clean outer cladding of
cylinder with a soft cloth
dampened with warm water
only. Do not use abrasive or
aggressive cleaning
materials, such as alcohol or
petroleum based solvents, as
this may damage the surface
of the product.
4.3 Cold Water Supply
For satisfactory and safe performance
of the unvented cylinder the water
supply must meet the following
criteria:
Minimum dynamic
pressure
150 kPa
(1.5 bar)
Maximum inlet supply
pressure
1200 kPa
(12 bar)
Minimum flow rate
15 l/min
Max. chlorine content
250mg/L
Max. water hardness
200mg/L
The following instructions have to be
followed when installing the cold
water mains supply to the cylinder:
- The cold water supply to the
cylinder must come directly from
the cold water mains after the
mains stop valve to the property.
- The cold water inlet pipe work
should have at least an inside
diameter of 19mm and should meet
the requirements of the water
regulations for the supply of
wholesome water.
Dimplex recommend an annual
maintenance inspection is carried out
on the domestic hot water cylinder. In
hard water areas this should include
inspection of the immersion heater,
[above 120ppm or 120mg/l]. A local
water treatment company should be
able to offer free water quality testing.
The heating elements may require
periodic de-scaling. The installer
should do this as part of a
maintenance agreement.
If required, precautions can be taken
to minimise effects of water hardness,
i.e. installation of a water conditioner
or water softener. These devices
should be installed in hard water
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