-
17
-
During the heating process the pressurised
connection water that increases its volume due to
heating must drip off the safety valve. In non
-
pressurised connection water drips off the
overflow combination faucet. When heating is finished, the set temperature and the actual
temperature of consumed water must be more
-
or
-
less the same. After connecting the heater to
the water main and electrical power system, and after checking the safety valve (following the
instructions attached to the valve), the heater can be put into operation.
Procedure of putting the heater into operation
1.
Check both water and electric installation; for combined heaters, check also the installation
to the hot water heating system. Check proper placement of thermostat sensors. The sensors must
be inserted all the way in; first the thermostat and then the safety fuse.
2.
Open the hot water valve on the combination faucet.
3.
Open the cold water inlet valve to the heater.
4.
Once water starts draining through the combination faucet valve for hot water,
the filling
of the heater is completed
and the valve can be closed.
5.
In case of leakage (of flange lid), we recommend that the flange lid bolts are fastened.
6.
Screw down the electric installation guard.
7.
When heating utility water with heat energy from the hot water heating system, open the heating
water inlet and outlet valves, or de
-
aerate the exchanger.
8.
When commencing operation, flush the heater until the cloudiness in the water is gone.
9.
Make sure to fill in properly the warranty certificate.
2.7
PUTTING OUT OF SERVI
CE, DISCHARGE
If the hot water heater is put out of service for a longer time, or if it is not going to be used it
has to be drained and disconnected from the electric supply network on all poles. The switch
for the supply lead or the fuse cut
-
outs have to be shut off.
At places
with permanent risk of frost the hot water heater must be drained before the cold
season starts if the appliance remains out of service for several days and if the power supply
is disconnected.
Drainage of utility water shall be performed after closing
the shut
-
off valve in the cold water
supply piping (through the discharge valve for safety valve combination), and with simultaneous
opening of all hot water valves of connected fittings.
Hot water may outflow during
the drainage!
If there is a risk of frost it has to be considered that not only the water in the hot
water heater and in the hot water piping may get frozen but also the water in the entire cold
water supply piping. It is therefore advisable to drain all fittings and piping that carry water, up
to the part where the house water meter is installed (connection of the house to water main)
which is not jeopardised by frost. When the tank is to be used again, it has to be filled with water
and one needs to make sure that the
water flowing out at the hot water valves did not contain
any bubbles.
