Page 6 of 8
Figure 3 PLUMBING DIAGRAM FOR GRAVITY FEDINSTALLATIONS
** In order to protectthe mixer valves thermostatic cartridge,we strongly recommend thattwoisolator valves
with built in filters (PartNo. 83-595326) be fittedinlinewith thehotand cold feedssupplyingthemixer as
shown. (Ensurethesystem hasbeen flushed through priorto connection). Page 3 of 8
Installation Summary
(Installation must be carried out bya competent qualified IPHE orCORGI registered
plumber. Please also read thedetailed instructions overleaf).
The SLT1 Selectronic ThermostaticMixer Shower Assembly can be fitted andplumbed into a
shower roomina fractionof the time normally taken to install aconventional mixer shower.
In essence, theinstaller choosesa suitable site, cuts a hole in the ceiling of the room, fixestwo
bracketsto the wall, locatesthe SLT1Selectronic Shower Assembly in placeand then connects
the hot and cold pipesto thebuildingsplumbing system within the roof or between floors.
If a pumped shower is required then thehot and cold shower inlet pipes areconnectedtothe
respective hot andcold outputsof asuitable pump andthe pump isinturnconnected tothe
buildingsplumbing system.
Normal conditions of use
High Pressure Low Pressure
Maximum Static pressure – Bar 10 10
Flow pressure, Hot & Cold – Bar 1 to 5 0.2 to 1
Hot to Cold differential – Bar 2 0.2
Hot supply Temperature - °C 52 to 65 52 to 65
Coldsupply temperature - °C 5 to 20 5 to 20
Minimum TemperatureDifferential - °C 10 10
Mixed WaterTemperature
Application Mixed water temperature (at point of discharge)
Shower 38°C (at overridepoint) 41°C (maximum)
Installation instructions in Detail
Figure3 showsatypical plumbing arrangement for the SLT1 Selectronic Shower Assembly.
Check the position of ceiling beamsandavoid these whenmarking out asuitabl e position.
If a beamor obstruction is close to theintended position for the hot andcold pipe connections
thentheangledcold inlet pipe can be rotated by hand toa more suitable position.
This is best done prior tofixingtheShower Assembly to the wall so it is most important that the
beamsand their position inrelation totheintended shower positionare checked thoroughly
beforeother work is started.
Once asuitable position for theShower assemblyhas been establishedand the ceiling beams
checked out, mark out the position of theceiling hole and that of the two fixing bracketsas
shownin Figure 2, using a plumb lineif necessary.
The centre of the upper fixing bracket can bevaried to suit a particular installation since the
bracket hasno fixed position on the maintube, however, a centre position 230mm from the
ceiling to the centre of the bracket will suit most installations.
For the bottomvalve bracket, a centre position 1075mmfrom the ceiling will suit most
installationsalthough it can beless than this lengthif considered appropriate.
Cut a hole of approx. 60mm diameter the centre of whichshould be 60mm away from the wall
anddrill the four bracket holes(7.0mm drill) and fasten both bracketsin position using theplugs
andscrewsprovided.