HIP DUO
™
Filter
Installation and
Conditioning Instructions
Parts & Service Availability:
Important
– Always use genuine Doulton
®
replacement cartridges and
components to guarantee the manufacturer’s performance claims.
Contact your local Doulton
®
distributor for sales, service, replacement parts and
for the range of available replacement filter cartridges.
Technical Data:
Maximum working pressure:
100 psig (689kPa) See 1.1
Maximum working temperature:
30°C (86°F)
Minimum working pressure:
20 psig (138kPa)
Installation of Cartridges
(as advised by your distributor depending on your water quality)
Direction of Flow
A
B
2 Stage Filter
A: Pre filter or water treatment cartridge
B: Ceramic filter element
1. Installation
Note
- The filter cannot be used for the treatment of hot water and should only
be connected to the cold water supply.
1.1 Pressure Information
Due to the potential wide variations of pressures from one installation to
another the manufacturer advises that
if there is any concern that the
system would see pressures above 100 psig (approx. 6.9bar) then an
approved pressure reducing valve bought from a good hardware store
and set at 100 psig (approx. 6.9 bar) should be installed
upstream of the
filter to eliminate any extreme variations in pressure. Water fittings for use in
permanently pressurised systems may have a finite life. It is important that the
plastic components in the system are replaced after 10 years usage.
1.2 Selecting a Position for the Filter
The filter should be fixed inside a unit or to a wall with the screws provided,
near to the incoming water supply and the user tap. Make sure that the filter is
located so that the connecting pipework does not have any sharp bends in it.
For easy servicing of the filter there should be at least 4 inches of
clearance below the body of the filter
to allow for removal of the cartridge
for cleaning or renewal.
1.3 Connecting Pipework & Fittings
The filter is supplied with 3/8” (inch) pushfit connections. Medium density
polyethylene tubing is recommended.
Important
- Tubing must conform to the following tolerances:
Tubing Dimensions:
Head Type
Nominal
Tolerance
+
-
3/8”
3/8”
.001”
.004”
An isolation valve and non-return valve should be fitted upstream of the filter
(these are required by law in the UK). The isolation valve may be used to regulate
the maximum flow rate in accordance with the requirements of the cartridges
used.
Having selected the appropriate fittings, a user valve/faucet should be installed
in accordance with the manufacturer’s instructions in a convenient position and
then connected to the filter.
1.4 Assembling & Fixing the Filter
Having chosen a position for the water filter, remove the clip on cover from the
top of the filter head to expose the fixing slots and mark the position of the fixing
screws onto the wall/unit. Attach the filter head to the wall/unit with the fixing
screws provided.
With the water supply isolated connect the upstream and downstream pipework
to the filter ensuring that the arrow inside the head is showing
the correct direction of flow and that piping/fittings
are pushed into the push fittings to a minimum of
18mm (.75”) depth.
www.doulton.com
A GENUINE WATER FILTER
A GENUINE
WATER FILTER
