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Smart Immersion Functions
On the new Smart Immersion we have four setting options:
Immersion Testing
Install the immersion using rigid cable, 2m long max, with 2.5 mm
2
cross-section and a temperature resist-
ance of at least 85°C.
The Cable should be rubber insulated HOFR sheathed, complying with BS6141 Table 8. It must be fully
earthed.
Ensure all terminal connections are securely made. Do not however use excessive force when tightening
the terminal screws.
Ensure that the power supply is disconnected prior to making any electrical connections. Provide 90mm
length of cable for each of the Live and Neutral cables with 8mm of bare cable for connection to the Immer-
sion terminals.
Provide 110mm length of cable for the Earth cable with 20mm of bare cable for connection to the Earth stud.
Make a circle with the bare Earth cable and tighten securely using the washer to the Earth stud.
Fit the Live and Neutral cables to the Immersion thermostat.
Ensure all terminal connections are properly tightened prior to commissioning
For installations with high water demands, or areas with hard water, Titanium immersions should be fitted.
The thermostat should be set so that the water is heated to a temperature between 60°C and 65°C. Water
stored at temperatures below 60°C can result in bacteria growth and temperatures above 65°C can cause
scalding.
The immersion stat has an integrated high limit stat which If the primary thermostat fails the limit thermostat
takes over and shuts the element off before the water can boil in the cylinder.
•
OFF
•
ECO
– smart control: starts for 2 weeks at 70°C and
then it will select automatically storage tempera-
tures through the day
•
MANUAL
– works as standard mechanical thermo-
stat can be set up to 70°C
•
OPK
(off peak) – this must be selected when the cyl-
inder is connected to the night tariff. During the day
time the immersion is not connected and this would
require the smart control to be reset. When OPK is
selected it should be set at 60°C and working as a
standard thermostat. Alternatively the user can se-
lect the manual mode.
