Main Components - Daikin EKHWS050B3VJU Manuel D'installation

Main components

2
1
14
5
15
6
7
8
9
F
10
13
11
R
12
C
1 Field supply
2 Hot water connection (H)
3 Pressure relief valve connection
4 Pressure relief valve (field supply)
5 Electrical box
6 Electrical box lid
7 Recirculation hole
8 Thermistor socket
9 Flow inlet connection (F) (from the main unit)
10 Heat exchanger coil
11 Return outlet connection (R) (to the main unit)
12 Cold water connection (C)
13 Threaded thermistor hole for use with the solar kit option. Refer to
the installation manual EKSOLHW*.
14 Temperature and pressure relief valve connection
15 Thermal protectors (Q2L, Q3L)
16 Booster heater
Flow direction
Installation manual
4
H
3
4
15
16
NOTE T-piece (field supply)(1) is only necessary if a
pressure relief valve is required on the hot water
side and the temperature and pressure relief
valve connection (14) is already used for a
temperature and pressure relief valve.
Temperature and pressure relief valve connection
(14) shall be used in case a temperature and
pressure relief valve (field supply) is required
according to local laws and regulations.
Safety devices
CAUTION
The domestic hot water tank relief valve connections
may not be used for other purpose.
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. The thermal
protector is activated when the temperature becomes too high.
When activated, the protector has to be reset on the domestic
hot water tank by pressing the red button (for access, remove
the electrical box lid).
CAUTION
The electrical box lid must only be opened by a
licensed electrician.
Switch off the power supply before opening the
electrical box lid.
Pressure relief valve — A pressure relief valve (field supply) in
accordance with relevant local laws and regulations, and with an
opening pressure of maximum 145 psi (10 bar) must be
connected to the pressure relief valve connection.
If a discharge pipe is connected to the pressure relief device it
must be installed in a continuously downward direction and in a
frost-free environment. It must be left open to the atmosphere.
If glycol is used, an approved pressure relief valve with an
opening pressure of maximum 30 psi (2.07 bar) (field supply)
must be installed in the inlet of the tank as shown in the figure
below.
1
Domestic hot water tank for air to water heat pump system
1 Pressure relief valve
EKHWS050+080B3VJU
4PW56114-1