Daikin EKHWET90BAV3, Руководство по эксплуатации

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5 Operation
Operation manual
12
EKHWET90~120BAV3
R32 Split series – Domestic hot water tank
4P680075-1B – 2022.02
ambient temperatures too cold, raise the slope so that the tank
temperature is heated increasingly more at decreasingly lower
ambient temperatures.
▪ Change the offset to equally increase or decrease the target
temperature of the tank for different ambient temperatures. For
example, if the tank temperature is always a bit too cold at
different ambient temperatures, shift the offset up to equally
increase the tank target temperature for all ambient temperatures.
Examples
Weather-dependent curve when slope is selected:
X1 X2
c
d
Y1
Y2
Y3
Y4
a b
Weather-dependent curve when offset is selected:
Y1
Y2
Y3
Y4
X1 X2
a b
c
d
Item Description
a WD curve before changes.
b WD curve after changes (as example):
▪ When slope is changed, the new preferred
temperature at X1 is unequally higher than the
preferred temperature at X2.
▪ When offset is changed, the new preferred
temperature at X1 is equally higher as the preferred
temperature at X2.
c Slope
d Offset
X1, X2 Examples of outdoor ambient temperature
Y1, Y2,
Y3, Y4
Examples of desired tank temperature. The icon
corresponds to the heat emitter for that zone:
▪ : Domestic hot water tank
Possible actions on this screen
Select slope or offset.
Increase or decrease the slope/offset.
When slope is selected: set slope and go to offset.
When offset is selected: set offset.
Confirm changes and return to the submenu.
5.8.4 Using weather-dependent curves
Configure weather-dependent curves as following:
To define the setpoint mode
To use the weather-dependent curve, you need to define the correct
setpoint mode:
Go to setpoint mode … Set the setpoint mode to …
Tank
[5.B] Tank > Setpoint mode Restriction: Only available to
installers.
Weather dependent
To change the type of weather-dependent curve
To change the type for the tank, go to [5.E] Tank .
▪ [5.E]
Tank
>
WD curve type
Restriction: Only available to installers.
To change the weather-dependent curve
Zone Go to …
Tank Restriction: Only available to
installers.
[5.C] Tank > WD curve
INFORMATION
Maximum and minimum setpoints
You cannot configure the curve with temperatures that are
higher or lower than the set maximum and minimum
setpoints for the tank. When the maximum or minimum
setpoint is reached, the curve flattens out.
To fine-tune the weather-dependent curve: slope-offset curve
The following table describes how to fine-tune the weather-
dependent curve of the tank:
You feel … Fine-tune with slope and
offset:
At regular outdoor
temperatures …
At cold outdoor
temperatures …
Slope Offset
OK Cold ↑ —
OK Hot ↓ —
Cold OK ↓ ↑
Cold Cold — ↑
Cold Hot ↓ ↑
Hot OK ↑ ↓
Hot Cold ↑ ↓
Hot Hot — ↓
See "5.8.3 Slope-offset curve" [
4
11].
To fine-tune the weather-dependent curve: 2-points curve
The following table describes how to fine-tune the weather-
dependent curve of the tank:
You feel … Fine-tune with
setpoints:
At regular outdoor
temperatures …
At cold outdoor
temperatures …
Y2
(a)
Y1
(a)
X1
(a)
X2
(a)
OK Cold ↑ — ↑ —
OK Hot ↓ — ↓ —
Cold OK — ↑ — ↑
Cold Cold ↑ ↑ ↑ ↑
Cold Hot ↓ ↑ ↓ ↑
Hot OK — ↓ — ↓
Hot Cold ↑ ↓ ↑ ↓
Hot Hot ↓ ↓ ↓ ↓
(a)
See "5.8.2 2-points curve" [ 4 11].