Accessories Supplied With The Ekuhwbb Option Kit For The Domestic Hot Water Tank; Accessories Supplied With The Ekuhw2Wb Option Kit For The Domestic Hot Water Tank When The Eksolhwav1 Option Kit Is Installed; Optional Equipment; Installation Of The Ekhwsu Domestic Hot Water Tank - Daikin EKHWSU150B3V3 Installation Manual

Accessories supplied with the EKUHWBB option kit for
the domestic hot water tank
1 2
1x 1x
5 6 7
1x 1x 1x
1 Pressure reducing valve and expansion relief valve. Water
inlet and water outlet 22 mm connection, discharge piping
connection 15 mm
2 Adaptor 22 mm×3/4" Female BSP
3 T-piece 1/2" Female BSP×15 mm×15 mm
4 Expansion vessel of 18 litres 3/4" Male BSP
5 Tundish 15 mm inlet, 22 mm outlet
6 Elbow/Drain valve 22 mm×3/4" Male BSP
7 T-piece 22 mm×22 mm×22 mm
8 Instruction sheet
Accessories supplied with the EKUHW2WB option kit for
the domestic hot water tank when the EKSOLHWAV1
option kit is installed
1 2
1x 2x
1 Solenoid 2-way valve 3/4" Female BSP×3/4" Female BSP
2 Connection nipple 3/4" Male BSP
3 PG nipple and nut

Optional equipment

EKWBSWW150: kit, including a wall bracket for a domestic hot water
tank of 150 litres.
EKUHWBB + EKUHW2WB + EKHWSU150-300B3V3
Domestic hot water tank with option kit for air to water heat pump
system
4P344370-1B – 2019.08
3 4
1x 1x
8
1x
3
1x
Installation of the EKHWSU domestic hot
water tank
The total Daikin Altherma system is designed for

combination with a Daikin Altherma domestic hot
water tank. In case another tank or a spare part other
than native Daikin is being used in combination with
the Daikin Altherma unit, Daikin cannot guarantee
neither good operation nor reliability of the system.
For those reasons Daikin cannot give warranty of the
system in such case.
The equipment is not intended for use in a potentially

explosive atmosphere.
For safety reasons, it is not allowed to add ethylene

glycol to the water circuit. Adding ethylene glycol
might lead to contamination of the domestic water if a
leakage would occur in the heat exchanger coil.
Only this tank can be used in combination with the

solar kit option.
 Domestic water quality must be according to EN
directive 98/83 EC.
 Wherever possible the main supply pipe should be in
22 mm. The minimum main water supply requirement
should be 1.5 bar working pressure and 20 litres per
minute flow rate. At these values outlet flow rates may
be poor if several outlets are used simultaneously, the
higher the available pressure and flow rate the better
the system performance will be.
 It is important that the storage capacity of the
domestic water tank meets normal daily fluctuations in
consumption of hot water without any fall of the water
outlet temperature during use.
 Immediately after installation, the domestic hot water
tank must be flushed with fresh water. This procedure
must be repeated at least once a day the first 5
consecutive days after installation.
If applicable

disinfection in specific situations, involving the
Altherma domestic hot water tank, please be aware
that the domestic hot water tank is a stainless steel
cylinder containing an aluminium anode. We therefore
advise in these circumstances to use a non-chloride
based disinfectant approved for use with water
intended for human consumption.
Where the secondary return circuits are used an

additional expansion vessel may be required.
legislation requires a chemical
Installation manual
2