Version 1, 15 June 2020, 4 of 16
5.0
WATER SUPPLY CONDITIONS
5.1
INTRODUCTION
This mixing valve cabinet assembly is manufactured to the highest standards and has approval to AS4032.1
which permits it to be installed in healthcare establishments such as hospitals, nursing homes and residential
care homes. When installed in healthcare establishments the supply conditions detailed in Table 2 must be
observed and the commissioning and servicing requirements detailed on section 7 & 8 must be followed.
5.2
SUPPLY PRESSURE REQUIREMENTS
This mixer is designed to be installed on all types of plumbing systems.
Hot and cold water supply pressures should be reasonably balanced; however, the mixer will function within
specification on unequal pressures up to 6:1.
The mixer has integral isolating valves which permit servicing of the strainer, check valve/flow regulator and
thermostatic cartridge. They are also used for thermal disinfection.
The minimum pressure for the correct thermal operation is 20kPa. However, to achieve an acceptable flow
performance at very low pressures it may be necessary to remove the combined check valve and flow regulators
and replace them with simple check valves to facilitate thermal disinfection.
Working Temperature Range (°C)
Min
5
Max
90
Working Pressure Range (kPa)
Min
20
Max
500
Maximum Static Pressure (kPa)
1000
Permitted Supply Pressure Variation
6:1
Table 2.
Water supply conditions
Note:
Tapware must be installed in accordance with the provisions of AS/NZS 3500. Installations not
complying with AS/NZS 3500 may void the product and performance warranty provisions.
