20
12.3 Important notes on debris
Although this product is protected by built-in lters, debris can still nd its way to the thermostat housing
area. This can happen during servicing for example. Remove cartridge (see section 12.2) and carry out
an inspection.
12.4 Thermostatic Cartridge Ageing
12.5 Hygiene Flush (automatic)
Following many years of normal service you may notice the following:
1. The need to carry out more frequent adjustment of mixed temperature.
2. The thermostatic element may not pass the CWI test.
These issues could be due to the ageing of the thermostat which loses some expansion capability over time.
These are the principle objectives of testing, as they serve to indicate to maintenance staff the declining
performance capability of the thermostatic cartridge.
For this reason the audit testing ow chart highlights that 2nd Instance CWI test failure or 2nd instance
mixed deviation even with stable ‘as commissioned’ supply conditions and correct inlet supply ∆t’s, is
potentially the rst indication of the need to replace the cartridge.
This hygiene ush is an important optional function of these products which can be enabled by the in-
staller or maintenance staff using the optional remote programming unit (for part number see sect.18).
The hygiene ush is used to combat periods of low usage of the product. The function monitors and
permits the tting to be run automatically if it hasn’t been used for a set time period. This function en-
sures regular movement of water preventing stagnation, thus combating bio lm growth and bacteria
colonisation.
a) Handunit ON
b) Navigate to Menu 4 PARAMETER
c) SENSOR 2013 (Enter)
d) MENU 4.1 HAND-WASH (Enter)
e) AUTO-RINSE FREQUENCY: OFF
ARROW UP (To required Delay time) (Enter). Recommended: 6 or 12 hours.
f) AUTO-RINSE DURATION: (15 sec default)
ARROW UP or DOWN (To required Run Time). Recommended: 60sec (max).
g) Point towards Sensor (approximate distance 100mm)
h) Press ENTER
i) TRANSMISSION OK - if successfully programmed; ERROR COM – if programming failed
j) Press ESCAPE (X) to get BACKUP FUNCTION
k) With BACKUP FUNCTION, previous settings are ‘Remembered’ –
- just point at next Tap / Sensor and press ENTER to repeat.
l) Handunit turns itself off after 2 minutes of non-use.
The programming unit should be held pointing towards the sen-
sor at distance of approx. 100mm, see below.
Once enabled, this function will automatically turn the water on
for a duration of 1 to 60 seconds if the product has not been used
for a period of 6, 12, 24, 48, or 72 hours.
For full details on how to enable this function, refer to the
programming instructions supplied with programming unit.
A brief summary of how to navigate the programming unit is as follows:
To Next Page
Loading...
