Third-Party Tank Requirements; Preparing Electrical Wiring; About Preparing Electrical Wiring; About Preferential Kwh Rate Power Supply - Daikin Altherma EPGA011-016DV Installer's Reference Manual

6 Preparation
▪ Because the total water volume (250 l) is more than the default
water volume (200 l), the pre-pressure must be decreased.
▪ The required pre-pressure is:
Pg = (0.3+(H/10)) bar = (0.3+(0/10)) bar=0.3 bar.
▪ The corresponding maximum water volume at 0.3 bar is 290 l.
(See the graph in the chapter above).
▪ Because 250 l is lower than 290 l, the expansion vessel is
appropriate for the installation.
6.3.6

Third-party tank requirements

In case of a third-party tank, the tank shall adhere to the following
requirements:
▪ The heat exchanger coil of the tank is ≥1.8 m².
▪ The tank thermistor must be located above the heat exchanger
coil.
▪ The booster heater must be located above the heat exchanger
coil.
NOTICE
Performance data for third-party tanks CANNOT be
provided nor guaranteed.
NOTICE
When connecting a third-party tank, configure as EKHWS
tank type.
If you have a tank in which you...
Can insert a thermistor.
a
b
Use EKHY3PART.
a Indoor unit
b Tank
For more detailed installation instructions, see the installation
manual of the connection kit and the addendum book for optional
equipment.
6.4

Preparing electrical wiring

6.4.1

About preparing electrical wiring

INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
Installer reference guide
26
CANNOT insert a thermistor.
a
b
Use EKHY3PART2.
WARNING
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires,
extension cords, or connections from a star system.
They can cause overheating, electrical shock or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction MUST
legislation.
WARNING
The backup heater MUST have a dedicated power supply
and MUST be protected by the safety devices required by
the applicable legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
6.4.2

About preferential kWh rate power supply

Electricity companies throughout the world work hard to provide
reliable electric service at competitive prices and are often
authorized to bill clients at benefit rates. E.g. time-of-use rates,
seasonal rates, Wärmepumpentarif in Germany and Austria, ...
This equipment allows for connection to such preferential kWh rate
power supply delivery systems.
Consult with the electricity company acting as provider at the site
where this equipment is to be installed to know whether it is
appropriate to connect the equipment in one of the preferential kWh
rate power supply delivery systems available, if any.
When the equipment is connected to such preferential kWh rate
power supply, the electricity company is allowed to:
▪ interrupt power supply to the equipment for certain periods of time;
▪ demand that the equipment only consumes a limited amount of
electricity during certain periods of time.
The indoor unit is designed to receive an input signal by which the
unit switches into forced off mode. At that moment, the outdoor unit
compressor will not operate.
Whether the power supply is interrupted or not, the wiring to the unit
is different.
EPGA11~16DAV3 + EABH/X16DA6V+9W
comply with the applicable
Daikin Altherma – Low temperature split
4P556069-1 – 2018.10