Climatic Conditions - fothermo CPVB-10 Bedienungsanleitung

EN
than one photovoltaic module, always use a sui-
table connector for parallel connection. For more
information, refer to the illustration "Parallel PV-
connector". Connecting photovoltaic modules in
series will damage the water heater.
Parallel
PV-connector
Connection of PV-modules in parallel configuration
only! Serial connection will damage the unit!
The electrical connection to the hot water boiler is
made via the connection cable. After completing
the electrical connection, be sure to check the func-
tionality of the device. The wires of the connection
cable are numbered and should be connected to the
power source as follows:
• Wire numbered "1" to the positive pole of the
source
• Wire numbered "2" to the negative pole of the
source
Connection of the PV modules
IMPORTANT!
The installation and electrical par-
allel connection of PV modules may only be carried
out by a qualified person and may not endanger
third parties. When installing the photovoltaic mo-
dules, the locally prevailing rules and laws must be
complied with.
IMPORTANT!
Always lay cables in such a way that
nobody can trip over them or get caught on them.
There is a risk of injury. The cables must be fixed in
such a way that there is no strain on the connectors.
Furthermore, it must be ruled out that the cables and
connectors rub against surfaces and edges (e.g. in
the wind) or are permanently in the water.
IMPORTANT!
All photovoltaic modules may be
operated with a maximum open circuit voltage (VOC)
of 42.4 V.
• Photovoltaic modules must be properly con-
nected to the connection cable.
Dimensioning of the required photovoltaic power:
• The higher the expected number of hours of
sunshine per day of use, the lower the required
PV power.
• The warmer the water supplied from the pipe,
the smaller the required PV power.
• The higher the amount of hot water required
per day, the greater the required PV power.
The following table serves as a guideline for dimen-
sioning the photovoltaic power needed depending
on the climatic conditions:

Climatic conditions

Sun-poor countries
e.g. Northern and Central Europe
Sunny countries
e.g. Southern Europe and Africa
The values shown are guide values. Depending on the
local conditions and the respective usage conditions,
the sensible design of the photovoltaic output can
deviate from the values described.
Extension of the photovoltaic line
If the photovoltaic cable is extended, the MC4 con-
tact plugs must be properly fastened to ensure func-
tionality and safety. Basically, the PV cable should be
kept as short as possible. A length recommendation
depending on the connected PV generator nominal
power can be found in the table below.
Recommendation of the cable dimensioning
cross-
2,5 mm²
section
Length
(back and
forth)
14
CPVB-10
300 W ᵖ
150 W ᵖ
4 mm² 6 mm²
≤ 6 m ≤ 10 m > 10 m