INSTALLATION
Commissioning
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ENGLISH
Example 1 : Power-OFF signal with own 230V phase
X0
2
L
L
N
N
PE
PE
L
N
PE
GNYE
BU
BN
1
1
2
X3
2
3
3
1
1
2
L1 / L2 / L3
N
EVU
D0000059154
EVU Power supply utility
BN Brown
BU Blue
GNYE Green/yellow
Example 2 : Photovoltaic signal via on-site relay and phase
routed outside the appliance
Note
The relay in the inverter must meet the following re-
quirements:
- Potential-free relay (240VAC / 24VDC, 1A) with
N/O contact
- Adherence to safety regulations and standards for
safety extra low voltage
- The switching output must be programmed so that
the relay closes or opens if certain limits are exceed-
ed or undershot (inverter output level).
If necessary, check with the inverter manufacturer wheth-
er the product meets the stated criteria.
X0
2
L
L
N
N
PE
PE
L
N
PE
GNYE
BU
BN
1
1
2
1
X3
2
3
3
1
1
2
D0000059155
1 Inverter (floating contact)
BN Brown
BU Blue
GNYE Green/yellow
The inverter power feed is usually located at a central distribution
point (e.g. in the main fuse box).
10.6 Assembling the appliance
Note
Refit the appliance cover after completing your
work. See chapter "Maintenance and cleaning/ Fit-
ting the appliance cover").
11. Commissioning
WARNING Electrocution
Never operate the appliance when the casing is open,
without a cover or without side air connectors.
11.1 Initial start-up
Note
Fill the DHW cylinder before switching on the power
supply to the appliance. The appliance is equipped with
boil-dry protection to prevent operation with an empty
DHW cylinder.
Note
Following an interruption to the power supply, compres-
sor operation remains blocked for at least one minute.
The PCB delays the electrical start-up by one minute,
during which the appliance initialises. If the compressor
subsequently fails to start, it may be locked out by addi-
tional safety devices (motor overload relay and high pres-
sure switch). This block should lift after 1 to 10 minutes.
11.1.1 Fan setting subject to pressure drop
The appliance requires a constant air flow rate of 350m³/h to
operate correctly. If an air duct is connected, the fan output must
be adjusted in the appliance menu due to the resulting pressure
losses. The factory setting is 40%, intended for recirculation air
mode.
Standard system with 5m air duct (DN160) and two 90° bends
Length or
pce
Pressure drop per
m or per pce [Pa]
Pressure
drop [Pa]
Folded spiral-seam tube 5 2 10
90° bend (r = 1 * d) 2 5.5 11
Intake grille 2 6.2 12.4
Total 33.4
Set the fan output to 47% in the controller menu.