Visage™ Digital Installation Guide 4
Special notes for combination boiler
systems
The appliance must have a minimum domestic hot
water rating of 24kW and be of the type fitted
with a fully modulating gas valve. If in any doubt,
please contact the appliance manufacturer before
installation commences.
DUE TO PERFORMANCE CHARACTERISTICS
OF COMBINATION BOILERS, SEASONAL
INLET TEMPERATURE CHANGE WILL AFFECT
THE QUARTZ SMART VALVE™ OUTLET FLOW
RATE RESULTING IN VARYING SHOWER
FLOW RATE AND FLOW CONTROL RANGE.
INLET TEMPERATURE CHANGE MAY
ALSO CAUSE THE TEMPERATURE DISPLAY
TO FLASH; THIS IS NOT NECESSARILY
CHANGING THE OUTLET TEMPERATURE.
DUE TO THE PERFORMANCE
CHARACTERISTICS OF COMBINATION
BOILERS, OPERATION OF THE BOOST
BUTTON OR INCREASING THE FLOW RATE
SETTING ON THE SHOWER CONTROLLER
MAY NOT OFFER SIGNIFICANT CHANGE IN
OUTPUT FLOW RATE.
Special notes for separately pumped
gravity systems and universal/negative
head pumps (for divert 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 products.
A universal/negative head type twin ended
pump (works on both positive and negative head
conditions) MUST be used with divert products.
The minimum actual capacity of the cold
water storage cistern should be not less than
225 litres (50 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.
Shower Heads
The range of shower heads has been designed
for use with Smart systems. Installation of
any shower heads other than these may result
in poor shower performance. If at any stage
during installation you have any questions then
please contact the Aqualisa Customer Service
Department on 01959 560010 for advice.
Connections
This product incorporates 15mm ‘push-fit’ type
connections. Tube should be cut using a rotary
type cutter and lubricated using a silicone
grease, petroleum jelly, or similar, prior to
insertion into the fitting. 15mm pipework must
be used to connect the product.
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
CHECK PIPE SIZE REQUIREMENTS FOR
CONNECTIONS TO OUTLETS AND
ACCESSORIES.
Long pipe runs, on both the inlet and outlet,
will reduce the flow rate at the shower head,
22mm pipework should be used on inlets and
reduced down to 15mm as close to the valve
as possible to reduce pressure loss 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. If plastic pipe is
used, 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 pipework thoroughly flushed out in
accordance with current local and national
Water Supply Regulations prior to connection of
the product.
IMPORTANT INFORMATION
Содержание Visage
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