First Heater Commissioning; Putting Out Of Service, Discharge - Drazice OKHE 80-SMART Operating And Installation Manual

The terminals of L, N, PE (230V/50Hz) supply include factory connected flexible plug with length 2,5m
connectable to the standardized plug EU. After the cover opening electrical wiring can be disconnected
using flexible plug and connect the conductors into the cross-section up to 2.5 mm

2.5 FIRST HEATER COMMISSIONING

Before opening the power supply, the tank must be filled with water. The process of first
heating must be executed by licensed professional who has to check it. Both the hot water
outlet pipe and safety armature parts may be hot.
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 should be roughly equal. 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 the water main and wiring.
2. Open the hot water valve on the combination faucet.
3. Open the cold water inlet valve to the heater.
4. As soon as the water starts running through the hot water valve, the heater is filled and the valve
can be closed.
5. In case of a leakage (flange lid), we recommend fastening the flange lid bolts.
6. Screw down the electric installation guard.
7. When hot service water heating by electric energy, switch on the power supply.
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.
10. The control panel must be connected with the control unit for the correct heating function.

2.6 PUTTING OUT OF SERVICE, 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. Alternatively, an antifreeze protection can be activated (refer to ANTI-
FREEZE MODE).
In case the heater is drained and connected to network 230V 50Hz, the function ANTIFREEZE
is functional. At low temperatures, heating can be connected and the heater damaged
2
.
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