eta Fresh water module 33, Руководство по эксплуатации

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ETAtouch controller Up to software version X.35.X
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10 ETAtouch controller
10.1 Up to software version X.35.X
10.1.1 [Fresh water module] 2 pumps
function block
10.1.1.1 Overview
Overview of the fresh water module (2 pumps)
You can return to the overview by pressing and
[FWM].
1 Operating condition
2 Temperature [Buffer top]
3 Temperature [Primary return]
4 Display of hot water uptake
5 Temperature [Hot water]
6 Timer [Stand-by times]
This only appears if the hot water temperature is
not set via the potentiometer (option [Target value
can be set with rotary knob] is deactivated).
7 Timer [Circulation times]
This only appears if a circulation pump is installed
and the [Self-learning] function is deactivated.
Function of the fresh water module
The desired hot water temperature is set with the po-
tentiometer on the fresh water module. If in the config-
uration the [Target value can be set with rotary knob]
option is deactivated, the timer [Stand-by times]
appears in the overview. With this you can set different
time windows and hot water temperatures for every
day of the week.
Inside these time windows, the upper part of the buffer
is maintained at no lower than the configured hot water
temperature. Outside the set time windows, the hot
water is maintained at the lowest set temperature of
the 3 time windows, provided that the accumulator
tank is sufficiently hot.
If an additional circulation pump for hot water is
installed, the different operating modes for this
pump are set in the same way. See the following
description for this.
Operating modes for the circulation pump
There are two ways to operate the circulation pump.
Either through automatic detection of the operating
times ("self-learning" function, often referred to as
"auto loop") or manual specification of the operating
times (set time window).
•
"Self-learning" function:
This is already set at the factory (= parameter [Self-
learning] to [Yes]). The hot water tappings of the
past 2 weeks are stored for automatic determina-
tion of the daily operating times. On the basis of
this, the operating times of the current day are
calculated and the circulation pump is started in a
timely manner.
In this operating mode, the circulation pump starts
as soon as hot water is drawn (detected by the flow
sensor in the fresh water module). The pump will
then run for a while and subsequently pause.
These runtimes and pauses are configurable
(=parameter [Circulation runtime] and [Circulation
pause]).
After commissioning, no more data is
available for the "self-learning" circulation.
That is why an operating period of about 4 weeks
is required in the beginning, so that the control
system can save sufficient data.
•
Setting a time window:
To do this, the "self-learning" function must be
switched off (= parameter [Self-learning] to [No]).
The operating times of the circulation pump are
now set manually, for example from 10:00 am to
2:00 pm . Within these time windows, the
circulation pump alternately starts and pauses,
based on the set runtimes and pauses, regardless
of whether hot water is currently being drawn or
not.
Example:
Time window = 10:00 am to 2:00 pm
[Circulation runtime] = 5 minutes
[Circulation pause] = 10 minutes
=> The pump runs from 10:00 am to 10:05 am ,