Daikin EKHWSU300D3V3 [14/24] Overview commissioning
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Daikin EKHWSU300D3V3 [14/24] Overview commissioning

Daikin EKHWSU200D3V3 [14/24] Overview commissioning
7 Commissioning
Installation manual
14
EKHWSU150~300D3V3 + EKEXPVES
Domestic hot water tank with option kit for air to water heat pump
system
4P510673-1B – 2018.01
A
B
N L
9 Fix the cable(s) using the cable clamp at the bottom of the tank
to ensure strain relief.
10 Install the switch box cover
6.6 Finishing the domestic hot water
tank installation
6.6.1 To close the domestic hot water tank
1 Close the switch box cover.
7 Commissioning
WARNING
Only qualified persons should conduct commissioning.
CAUTION
Preliminary electrical system checks such as earth
continuity, polarity, resistance to earth and short circuit
must be carried out by using a suitable test meter by a
competent person.
7.1 Overview: Commissioning
Typical workflow
Commissioning typically consists of the following stages:
1 Checking the "Checklist before commissioning".
2 Performing a test run for the system.
3 Checking the "Checklist before commissioning".
7.2 Checklist before commissioning
After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit MUST be closed, ONLY then
can the unit be powered up.
You read the complete installation instructions, as
described in the installer reference guide.
The domestic hot water tank is properly mounted.
The system is properly earthed and the earth terminals
are tightened.
The fuses or locally installed protection devices are
installed according to this document, and have NOT been
bypassed.
The power supply voltage matches the voltage on the
identification label of the unit.
There are NO loose connections or damaged electrical
components in the switchbox.
The booster heater circuit breaker F2B on the
switchbox is turned ON.
There is NO water leak on the connections of the
domestic hot water tank.
The shut-off valves are properly installed and fully open.
The pressure relief valve purges water when opened.
The minimum water volume is guaranteed in all
conditions. See "To check the water volume" in
"5.3Preparing water piping"on page7.
Field wiring
Be sure that the field wiring has been carried out
according to the instructions described in the chapter
"6.5 Connecting the electrical wiring" on page 11,
according to the wiring diagrams and according to the
applicable legislation.
7.3 Checklist during commissioning
To perform a wiring check.
8 Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation on the url as earlier described in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do in relation to maintaining the unit.
9 Maintenance and service
NOTICE
Maintenance MUST be done by an authorized installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.

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