Outlook Diagram - Daikin EKHWSU150B3V3 Installation Manual

1 Hot water connection
2 Temperature and pressure relief valve
3 Electrical box
4 Electrical box lid
5 Recirculation hole
6 Thermistor socket
7 Flow inlet connection
8 Heat exchanger coil
9 Threaded thermistor hole for use with solar kit option. Refer to the
Installation manual EKSOLHWAV1
10 Return outlet connection
11 Cold water connection
12 Only in case of installing the EKSOLHWAV1 option kit
Cable hole to fit PG nipple and nut for use with solar kit option.
Refer to the Installation manual of the EKSOLHWAV1 option kit.
13 Cable hole to fit PG nipple and nut into for cable connections of
booster heater, power supply and thermal protection cable
14 Only in case of installing the EKSOLHWAV1 option kit
Cable hole to fit PG nipple and nut into for cable connections of
solenoid valve. Refer to the Installation manual of the
EKSOLHWAV1 option kit.
15 Only in case of installing the EKSOLHWAV1 option kit
Cable hole to fit PG nipple and nut into for cable connections of
solenoid valve power supply and solar pump power supply. Refer
to the Installation manual of the EKSOLHWAV1 option kit.
Safety devices
The domestic hot tank relief valve connections should
not be used for other purposes.
Do not install heaters without thermal cut-outs.
Thermal protector — The booster heater in the domestic hot
water tank is equipped with a thermal protector (setting 85°C).
For EKUHW2WB only: Secondary thermal protector (solenoid
2-way valve) — The thermal protector will close the solenoid
2-way valve (setting 85°C).
Both thermal protectors are activated when the temperature
becomes too high. When activated, the protectors have to be
reset on the domestic hot water tank by pressing the red button
(for access, remove the electrical box lid).
The electrical box lid must only be opened by a
licensed electrician.
Switch off the power supply before opening the
electrical box lid.
For EKUHW2WB only: Thermostat (solenoid 2-way valve)
The thermostat will close the solenoid 2-way valve when the
temperature becomes too high (setting 79°C).
Temperature and pressure relief valve
The temperature and pressure relief valve prevents excessive
water temperature (>95°C) and excessive water pressure
(≥10 bar) in the domestic hot water tank.
Expansion relief valve (option kit)
The pressure relief valve prevents excessive water pressure
(≥8 bar) in the water circuit.
NOTE Refer to "Installation of the option kit on the domestic
hot water tank" on page 9 for connection of other
safety devices in accordance with relevant local and
national regulations.
Installation manual
3

Outlook diagram

73°
105°
1 Hot water connection
2 Recirculation hole
3 Flow inlet connection (see also "Installation guidelines" on page 4
regarding pipe size to use)
4 Return outlet connection (see also "Installation guidelines" on
page 4 regarding pipe size to use)
5 Cold water connection
6 Temperature and pressure relief valve connection
7 Thermistor socket
8 Threaded thermistor hole for use with solar kit option. Refer to the
Installation manual EKSOLHWAV1
9 Warning label
Domestic hot water tank model
EKHWSU150B3V3
EKHWSU200B3V3
EKHWSU300B3V3
EKUHWB + EKUHW2WB + EKHWSU150-300B3V3
Domestic hot water tank with option kit for air to
30°
45°
15°
H1 H2 H3 H4
900 475 185 1015
1150 630 200 1265
1600 630 200 1715
water heat pump system
4PW44439-1D – 02.2011
H5
605
830
830