Daikin EKHWET90BAV3, Operation Manual

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9 Disposal
Operation manual
15
EKHWET90~120BAV3
R32 Split series – Domestic hot water tank
4P680075-1B – 2022.02
▪ When Emergency is set to Manual and a heat pump failure
occurs, the domestic hot water heating stops.
To manually recover it via the user interface, go to the
Malfunctioning
main menu screen and confirm whether the
booster heater can take over the heat load or not.
When the heat pump fails, or will appear on the user
interface.
Possible cause Corrective action
Heat pump is damaged. See "8.1 To display the help text
in case of a malfunction" [
4
14].
INFORMATION
When the booster heater takes over the heat load,
electricity consumption will be considerably higher.
8.6 Symptom: The system is making
gurgling noises after
commissioning
Possible cause Corrective action
There is air in the system. Purge air from the system.
(a)
Incorrect hydraulic balance. To be performed by the installer:
1 Perform hydraulic balancing
to assure that the flow is
correctly
distributed
between the emitters.
2 If hydraulic balancing is not
sufficient, change the pump
limitation settings ([9-0D]
and [9-0E] if applicable).
Various malfunctions.
Check if or is displayed
on the home screen of the user
interface. See
"8.1 To display the
help text in case of a
malfunction"
[
4
14] for more
information about the
malfunction.
(a)
We recommend to purge air with the air purge function of the unit
(to be performed by the installer). If you purge air from the heat
emitters or collectors, mind the following:
WARNING
Air purging heat emitters or collectors. Before you
purge air from heat emitters or collectors, check if or
is displayed on the home screen of the user interface.
▪ If not, you can purge air immediately.
▪ If yes, make sure that the room where you want to
purge air is sufficiently ventilated. Reason: Refrigerant
might leak into the water circuit, and subsequently into
the room when you purge air from the heat emitters or
collectors.
9 Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
10 Glossary
DHW = Domestic hot water
Hot water used, in any type of building, for domestic
purposes.
11 Installer settings: Tables to be
filled in by installer
11.1 Configuration wizard
Setting Fill in…
System
Indoor unit type (read only)
Emergency [9.5]
Booster heater capacity
[9.4.1]
Quick mode timer [9.4.3]
Operation [9.4.4]
Tank
Heat up mode [5.6]
Disinfection [5.7]
Maximum
[5.8]
Hysteresis [5.9]
Hysteresis [5.A]
Comfort setpoint [5.2]
Eco setpoint [5.3]
Reheat setpoint [5.4]
Setpoint mode
[5.B]
WD curve type [5.E]
Operation modes [5.G]
11.2 Settings menu
Setting Fill in…
Information
Dealer information [8.3]