Rotex HPSU compact 508, Инструкция по эксплуатации

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7 x Decommissioning
58 BA ROTEX HPSU compact 2 - 04/2011
7 Decommissioning
7.1 Temporary shutdown
If the HPSU compact is not needed for a long time, it can be temporarily decommissioned.
However, ROTEX advises against disconnecting the system from the power supply, and recommends instead that you deactivate
the operating modes room cooling and room heating. The hot water heating mode must remain active. In order to make the frost
protection as energy-saving as possible, the hot water temperature can be set to the lowest possible value on the controller of
the control system.
The system is then protected from frost. The pumps and valve protection functions are active.
If it is not possible to guarantee the power supply when there is danger of frost,
– completely discharge the HPSU compact on the water side, or
– suitable anti-frost measures are taken.
Draining the storage tank
• Switch off the main switch and secure against restarting.
• Only with ROTEX Solaris system: Drain the Solaris system completely (see operating instructions).
• Connect the hose and hose connection from the accessories set to the rear of the solar panel (only this particular hose will
open the foot valve automatically). In the connected Solaris system, use KFE cock on Solaris return.
• Drain out water content from cylinder.
Draining the heating circuit and hot water circuit
• Connect the drainage hose to the combined filling and draining valve on the HPSU compact.
• Open the combined filling and draining valve on the HPSU compact.
• Allow the heating and warm water circuit to run empty based on the suction lifter method.
• Disconnect the heating flow and return flow as well as the cold water inflow and the hot water outflow from the
HPSU compact.
• Connect the discharge hose on the heating flow and return flow as well as the cold water inflow and hot water outflow so
that the hose opening is at ground level.
• Allow the individual heat exchangers to run empty one after the other based on the suction lifter method.
7.2 Final shutdown
CAUTION!
A heating system which is shut down can freeze in the event of frost and may suffer damage.
• Drain the water out of the shutdown heating system if there is a danger of frost.
• If the heating system is not drained, the power supplies must be secured and the main switch must remain
switched on.
If there is a danger of frost and the power supply cannot be guaranteed for just a few days, the unit's excellent
heat insulation means that the HPSU compact does not have to be drained, provided that the storage tank
temperature is monitored regularly and does not fall below +3 °C.
However, there is no frost protection for the connected heat distribution system through this.
WARNING!
Cooling systems (heating pumps), climate control systems and heating devices that are incorrectly dismantled
can both endanger life and health of people and be impaired in their function during start-up.
• Work on the HPSU compact (such as dismantling components, temporary or final shutdown of system) is
only to be carried out by persons who are authorised and who have successfully completed qualifying
technical or vocational training and who have taken part in advanced training sessions recognised by
the relevant responsible authorities. These include in particular certified heating engineers, qualified
electricians and HVAC specialists , who because of their professional training and expert
knowledge , have experience in the professional installation and maintenance of heating, cooling and
air conditioning systems and heat pumps.
• You must observe the warning and safety instructions in the installation manual on working in the
coolant system.