Operation manual
9
EKHVWQ0 E260AA1V3
Domestic hot water heat pump
4PW65343-1A – 10.2010
Auto adaptive set point operation
Recommendation
This function works best when the schedule timer operation mode is
selected. In continuous operation mode the use of this function is not
so effective.
The auto adaptive set point function automatically changes the water
set point based on the amount of hot water used in the past
(according to the users tapping pattern). This function calculates for
each individual weekday a certain temperature set point.
Selecting auto adaptive set point operation
1
Press the
ba
button to select the auto adaptive set point
operation.
Icon
a
appears on the display as well as the target auto
adaptive set point.
2
Use the
wi
and
wj
buttons to change the auto adaptive
set point. If it is changed, the auto adaptive set point will be
adjusted only once for that specific day.
Range for the shift value: –5°C to +5°C
The minimum temperature set point is set by field setting [1-01].
The maximum temperature set point is set by field setting [1-02].
5.5.
Programming and consulting the schedule timer
Getting started
Programming the schedule timer is flexible (you can add, remove or
alter programmed actions whenever required) and straightforward
(programming steps are limited to a minimum). However, before
programming the schedule timer, remind:
■
Familiarise yourself with the icons and the buttons. You will need
them when programming. Refer to "Name and function of
buttons and icons" on page 5.
■
Fill out the form at the very end of this manual. This form can
help you define the required actions for each day. Keep in mind
that:
-
In the domestic water heating program, 5 actions can be
programmed per weekday. The same actions are repeated
on a weekly basis.
-
In the quiet mode program, 5 actions can be programmed.
The same actions are repeated on a daily basis.
■
Take your time to enter all data accurately.
■
Try to program the actions in a chronological way: start with
action 1 for the first action and end with the highest number for
the last action. This is not a requirement but will simplify the
interpretation of the program later.
■
If 2 or more actions are programmed for the same day and at the
same time, only the action with the lowest action number will be
executed.
■
You can always alter, add or remove the programmed actions
later.
Example 1
Example 2
If on mondays the customer is
usually at home and uses a lot of hot
water, the set point for "monday" will
increase untill the required amount of
hot water is reached (as shown in
the figure below).
If the customer almost never uses
hot water on mondays, the set point
for "monday" will decrease (as
shown in the figure below).
T
s
Domestic hot water set point (°C)
Wk
Weeks
Sunday
Auto adaptive set point temperature for sunday
Monday
Auto adaptive set point temperature for monday
INFORMATION
■
When the auto adaptive set point function is activated,
all set points that have been manually put in the
schedule timer will be replaced by the automatic
calculated set point.
When the auto adaptive set point is deactivated again,
the schedule timer will work again according to the
originally programmed set points.
■
The auto adaptive set point operation function will
work at his best when the customer has a domestic
hot water tapping pattern on a regular basis. If the
demand deviation is too big, shortage of hot water can
occur. The demand expectation is based on maximum
domestic hot water use of the past weeks.
If a permanent change in domestic hot water demand
requirement occurs, the automatic set point
calculation must tbe reset ([8-03], refer to the field
settings explained in the installation manual).
■
Make sure that the field setting of the volume of the
domestic hot water tank is set correct (refer to the field
settings explained in the installation manual).
■
Make sure to put the unit on stand-by during longer
periods of absence.
If this is not done, the auto adaptive set point wiil
continue to be calculated, resulting in incorrect
settings not representing the normal domestic hot
water demands of the user.
■
Auto adaptive set point will not work optimal if very
large amounts of domestic hot water are used each
day by frequently heating up water during the day.
■
Reheat operation, powerful operation and disinfection
operation overrule auto adaptive set point and heat up
the domestic hot water tank to their respective set
point.
60
55
50
45
40
1
2
3
4
5
6
7
Sunday
Monday
Ts
Wk
56
°
C
51
°
C
60
55
50
45
40
1
2
3
4
5
6
7
Sunday
Monday
Ts
Wk
56°C
41°C
