Aquastream Thermo thermostatic integral power shower
installation instuctions
page 5
Important information
Isolating valves
Suitable isolation valves such as gate valves must be fitted to both supplies in accordance with the current Water Supply
Regulations and our terms of warranty.
Due to their restrictive characteristics, stopcocks and ball type valves that reduce the pipe bore size must not be used on gravity
or pumped installations.
Filters
To ensure ongoing optimum performance the internal control mechanism ‘cartridge’ is protected by a two-part filter system.
Debris accumulation may result in reduced flow from the shower head and noisy operation.
As this condition is not covered by our standard warranty terms, it is suggested that the cartridge be removed and the filters
checked by a competent person. In the event of any difficulties please contact the Aqualisa customer helpline for assistance.
Siting
The Aquastream Thermo unit must be sited so that the top of the casing is below the underside of the cistern. The casing must
not be sited where it is subjected to continuous spray from the shower head.
Stored water capacities
The minimum capacity of the cold storage cistern should not be less than 225 litres (50 gallons). The capacity of the hot
cylinder must be capable of meeting the anticipated demand.
Gravity fed hot and cold supplies
The Aquastream Thermo shower system is designed to operate up to a maximum static pressure of 0.1 MPa (1 bar) (14.5 psi).
Services must be installed according to good plumbing practice having regard to pipe sizing, long pipe runs and low-head
situations.
The cold supply for the valve assembly must be taken directly from the cold storage system. The hot supply may be taken from
the vent/draw off pipe of the hot water cylinder at a point below the cylinder connection or alternatively from the underside of
the horizontal draw off.
Rising pipe work must not be connected into the horizontal draw-off from the cylinder or to any point in the vent/draw off pipe
above the cylinder connection.
CYLINDER TEMPERATURE IN EXCESS OF 65ºC MAY RESULT IN POOR SHOWER PERFORMANCE.
Pipe work can generally be run in 15mm.
A typical layout is shown on the reverse of this guide.
