Quartz Digital exposed with adjustable head
installation instructions
Page 6
Special notes for separately pumped gravity systems
We recommend a
MINIMUM
pump rating of 1.5 bar. For optimum performance a 2.5 bar pump should be used
for all separately pumped installations.
A twin ended pump is required for use with single outlet Digital products.
A universal type twin ended pump (works on both positive and negative head conditions) is required for use with
Digital Divert products.
The minimum actual capacity of the cold water storage cistern should be not less than 225 litres (80 gallons). The
capacity of the hot water cylinder must be capable of meeting the anticipated demand.
THIS PRODUCT IS NOT SUITABLE FOR USE WITH A SINGLE ENDED PUMP.
Connections
This product incorporates ‘push-fit’ type connections. Tube should be cut using a rotary type cutter and
lubricated using a silicone-based lubricant or petroleum jelly (Vaseline or similar) prior to insertion into the fitting.
If plastic pipe is used, the tube insert must not increase the tube diameter or extend the cut-off length by more
than 2mm.
THESE FITTINGS ARE NOT SUITABLE FOR STAINLESS STEEL TUBE. COMPRESSION FITTINGS MUST NOT BE USED.
Pipe sizing
Long pipe runs, on both inlet and outlet, will reduce the flow rate at the shower head, 22mm pipe work should be
used on inlets and reduce down to 15mm as close to the valve as possible to reduce pressure losses and help
maintain flow rate. If using 15mm pipe, copper pipe is preferred, to optimise performance minimise the number
of elbows used. If long pipe runs are unavoidable on the outlet, use copper pipe rather than plastic, particularly if
a diverter is used, and minimise the number of elbows as the pipe inserts are very restrictive.
Flushing
Some modern fluxes can be very corrosive and, if left in contact, will attack the working parts of this unit. All
soldering must be completed and the pipe work thoroughly flushed out in accordance with current Water Supply
Regulations prior to connection of the product.
After installation
Familiarise the end user with the Quartz Digital operation and hand them this guide. Complete and post the
guarantee card or register online at www.aqualisa.co.uk
