Tank Sensor Sensitivity - Lochinvar TTW Series Installation, Commissioning And Maintenance Instructions

P5CI = 5°C
This is the bandwidth within which the Legionnaires' temperature
must stay during the programmed duration time period. In this
example the temperature is allowed to fluctuate between 65°C
and 70°C during the anti-Legionnaires' function.
Normal setting water
temperature.
Start of the anti-Legionnaires' disease
program (start day and time can be
programmed).
Curve and values only for illustration purposes, programmed parameter values can deviate
The settings of these parameters P5 CI, P5 CJ and P5 CD must be programmed according to all applicable anti Legionnaires' disease preventing
regulations.
The setting of these parameters can only be done by the manufacturer/supplier of the water heater and is possible by the display of the unit
without the use of a computer.
The use and activation of this function will not guarantee a Legionnaires' disease free installation. The responsibility for a
legionnaire's disease free installation remains at the end-user/owner.
17.2.3

TANK SENSOR SENSITIVITY

P2KH Gradient heat demand detection DHW tank temperature (display BG)
With S3 in use as tank sensor, it is possible to detect a fast cooling down of the tank through a large DHW flow. The sensitivity of this sensor can
be set in parameter P2KH in tenths of degrees.
P5CJ = 80 min.
This is the duration within which the water temperature must be
between the 65°C and 70°C.
Time (10 min steps)
P5CD = 70 °C
This is the maximum temperature during anti
Legionnaires' disease function period.
Normal setting water
temperature.
[0.1°C]
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