Daikin Altherma EKHWE150A3V3, Руководство по установке

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Installation manual
6
EKHWE150~3 E300A3Z2
Domestic hot water tank for air to water heat pump system
4PW43396-1D
Note: only relevant field wiring is shown.
C
OMMISSIONING
Before putting power to the unit, make sure:
■
the unit is filled with water,
■
the sensor of the thermistor cable is mounted correctly in the
thermistor socket,
■
a pressure relief valve is installed.
Check the operation of the 3-way valve: make sure that when the
indoor unit is in domestic water mode it sends hot water to the tank;
when it is in room heating mode, it sends water to the room (feel the
tubes by hand).
M
AINTENANCE
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
1 The pressure relief device valve is to be operated regularly as to
remove lime deposits and to verify that it is not blocked.
2 Once a year: Descaling
Depending on the water and set temperature, scale will deposit
on the heat exchanger and booster heater inside the domestic
hot water tank.
This will restrict heat transfer and can cause burn out of the
booster heater. For this reason, descale the booster heater and
the heat exchanger.
3 Once every 2 year: Anode.
Check if the anode is not deteriorated. If the diameter of the
anode has decreased with 10 mm or more, make sure to
replace it (original diameter is 33 mm).
A4P
K6M
F2B
K3M
K7M
2 1
X4M
4a
OPTIONAL
X2M
21 20
Q2L
3-way valve 2-way valve
12 11 4
thermostat
2 1 3 5 6 7 8 9 10 13 19
thermal
fuse
14 15 16 17 18
SOLAR PUMP
N L
L2 L1
X3M (230V)
F1B
TR1
TR1
A1P
A1P
X2M
X1M
K5M
K2M
K1M
K1M
K2M
K5M
K4M
1 2 3 L1 L2 L3 N
15a
K3M
X9A
X13A
1 2 4
2
3
X4M X2M
>50 mm
3 way
valve
L
BRN BLU BLK
N Y
X4M
X3M
230 V AC
3 kW
L N
400 V AC
3 kW
L1 L2
V3
Z2
■
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
■
Make sure that before starting any maintenance or
repair activity, also the power supply to the outdoor
unit is switched off.
Do not use sharp metal tools or strong acid to remove the
scaling. Only use commercially available cleaning and
scale removal agents for copper and enamelled surfaces.
After removing the scale, rinse the domestic hot water tank
by water jet.
It is of the utmost importance that the anode is in good
contact with the domestic hot water tank. For this reason,
after replacing the anode or other servicing, make sure
that the anode is connected with the earthing screw.