Electrical Connection - Pv - fothermo PVB-30-AC Bedienungsanleitung

has not observed the present manual instructions.
WARNING! The combined check and pressure relief
valve is one of the protective devices that ensure
the safe operation of the water heater. The use of
the water heater with a damaged or removed/unas-
sembled combined check and pressure relief valve
(safety valve) is STRICTLY PROHIBITED!
The pressure relief valve can also be used to drain
the water from the tank if desired. In such case, pro-
ceed as follows:
• Disconnect the water heater from any live elec-
trical wiring.
• Disconnect the cold-water inlet.
• Open the hot water tap of the mixing tap or dis-
connect the hot water pipe (return pipe) of the
water heater.
• Lift the small lever of the pressure relief valve
(Table 1, No. 5) and wait until no more water
leaves the valve.
• WARNING! The running water can be hot – risk
of scalding.
These steps do not still secure the complete draining
of the water out of the tank. It is completed only
by a qualified person because it requires complete
disconnection of the appliance electric circuit and
dismantling the water tank flange.
WARNING! It is STRICTLY PROHIBITED
the heater power while the water tank is partially or
completely emptied of water! Do not forget to fill the
tank with water before putting it back into operation.
WARNING! The coolant circulation through the heat
exchanger of a water heater equipped with such de-
vice is PROHIBITED when the water tank is partially
or completely emptied of water.
WARNING! When draining the water out of the water
tank all necessary precautions must be taken to
prevent damages from flowing out water.
IMPORTANT! In Denmark, Sweden, Norway and
Finland, the connection of the water heater to the
public water supply may only be performed using
a suitable pressure reducing valve. The local regu-
lations must be observed.

ELECTRICAL CONNECTION - PV

WARNING!
performed when the water heater is filled with water.
IMPORTANT!
wered by direct current. The water heater is protec-
ted against electric shock "class ІII" and may only be
supplied with safety extra-low voltage (SELV). Only
power sources recommended by the manufacturer
may be connected. A faulty and/or unsuitable power
supply involves a high risk and is likely to cause an
accident. The connection cables of the device must
be replaced if they are damaged.
IMPORTANT!
connected in PARALLEL. When connecting more
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
to turn on
Connection of PV-modules in parallel configura-
tion only! Serial connection will damage the unit!
The electrical connection of the water heaters is
performed using the factory supplied MC4 plugs.
Check the functionality of the appliance after the
electrical connection has been performed. When all
supply connections are removed, the water heater is
completely disconnected from the power sources.
13
Any electrical connection may only be
At the PV-input the water heater is po-
Photovoltaic modules may
Pay attention to correct pola-
rity when connecting!
EN
ONLY be