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Water level at the facility and in hot water coil should be checked, if the first water intake has occurred, dirt
catcher should absolutely be checked and air should be taken out of the system.
After water intake, the hot water coil should absolutely be checked against water leakages by opening the
service door.
Detected water leakages should be eliminated.
8.5. Commissioning
Please refer to the control panel section at the Section 12 for commissioning the unit.
8.6. Service and Maintenance
Please refer to the maintenance section mentioned at the Section 13 for service and maintenance the unit.
8.7. Failure and Troubleshooting
Please check the explanations under the title of “12.4. Alarm Management of Room Control Unit” for this unit.
9. ADDITIONAL ELECTRIC HEATER OPTION
9.1. Introduction
Electric heaters are used optionally in all series of URTP devices. For the electric heater complete
installation and connections of which are made, there is no need for an additional installation or connection.
The electric heater prepared by rapping stainless steel band on stainless steel pipe is operated at the factory
by letting pas through all tests and presented to its users. There is a high temperature limit termostate on
resistant heater. This might be number 1 or 2 according to the heater’s size. In case the temperature on this
resistance exceeds 70°C, heater blocks electricity connection and the device cools down. Besides, the
electric heater operates in coordination with blow fan. At times when the fan doesn’t work, electric heater
should never be activated. In addition to that, even in case the electric heater is deactivated, fan keeps on
working for a while. This is a precaution to prevent water accumulation on electric heater. Finally, currents
consumed by electric heaters are continuously checked on the panel. In case the limit values are exceeded,
limiters cut off the current to prevent any bad results.
9.2. Power Cable Connections of Heating
It is enough that users provide the device with power by power supply panel. There is no need for cabling
for the electric heater. It should certainly be regarded that the electric heater is fully loaded in determining
cable section.
9.3. Operation Limits