5
3
WATER SUPPLY CONDITIONS
P
T
°C
KPa
10
Recommended
Recommended
MAX. 65
MAX.
1000
100
500
40
Supply temperatures:
Avoid supplying scalding water to the HOT inlet. Hot water temperature supply
should be controlled to circa 40°C.
In order to maintain water quality, the hot supply should be stored & distributed at
a temperature greater than 55°C.
Use of an appropriate temperature reduction device (i.e. tee pattern thermostat)
is recommended to ensure delivery of safe hot water temperatures from the mixer.
Supply pressures:
This product should be plumbed to balanced pressure water supplies for best
mixing performance.
The recommended working pressure for self-closing taps is 100 to 500 KPa.
Exceeding this pressure will adversely affect the operation of the taps.
This adverse effect can be overcome by using PRV to reduce the pressure
accordingly.
4
NATIONAL PLUMBING & DRAINAGE CODE
The products covered by this installation and maintenance instruction must be
installed in accordance with the provisions of AS/NZS 3500 & any relevant local
regulations. Installations not complying with AS/NZS 3500 may void the product
performance & warranty.
Armitage Shanks strongly recommends that this product is fitted by a
professional installer.
4.1 Water supply controlling devices (external)
Pressure & temperature ranges of the incoming water supplies should comply
with the limits specified above.
NOTE: Maximum recommended static pressure in AS 3500.1.2 is 500 Kpa.
To avoid exceeding this pressure, install a suitable pressure reducing valve - PRV
(or pressure limiting valve - PLV) on both hot & cold incoming water supply
systems. A suitable location for a PRV on the hot supply may be on the cold inlet
to the heating appliance.
Similarly, if the water supply temperature ranges do not conform as above, then
suitable temperature controlling devices should be installed to achieve this.
