Dimplex S1 7KS MALFUNCTIONS 10 TROUBLESHOOTING, 11DECOMMISSIONING, Shutdown in Summer

According to current knowledge, we recommend cleaning with a 5% phosphoric acid solution or, in the case that cleaning needs to be performed more frequently, with a 5% formic acid solution.

In either case, the cleaning fluid should be at room temperature. It is recommended that the heat exchanger be cleaned in the direction opposite to the normal flow direction.

To prevent acidic cleaning agents from entering the circuit of the heating installation we recom- mend that the flushing device be fitted directly to the supply and return lines of the condenser. To prevent any damage caused by cleaning agent residues that may be present in the system it is important that the system be thoroughly flushed using appropriate neutralising agents.

The acids must be used with great care, all rele- vant regulations of the employers' liability insurance associations must be adhered to.

If in doubt, contact the manufacturer of the chemicals!

CAUTION! Caution - Heating Technicians ! Depending on the filling water quality and quantity, in particular in the case of mixed installations and plastic pipes, mineral deposits (rust sludge, lime) may form, impairing the pro- per functioning of the heating installation. A reason for this is the water hardness and oxygen dissolved in the filling waters as well as additional oxygen from the air, which may penetrate via valves, fittings and plastic pipes (oxygen diffusion). As a preventive measure it is recommended that a physical water conditio- ner such as ELYSATOR be used.

CARE/CLEANING

MALFUNCTIONS/TROUBLESHOOTING DECOMMISSIONING

MALFUNCTIONS/

10 TROUBLESHOOTING

This heat pump is a quality product and is designed for trouble-free operation. In the event that a malfunction occurs nevertheless, you will be able to correct the problem yourself in most of the cases. Simply consult the Malfunctions and Trouble- shooting table contained in the operating manual of the heat pump controller.

Additional malfunctions can be interrogated at the heat pump controller.

If you cannot correct the malfunction yourself, please contact the after-sales service agent in charge (see Warranty Certificate).

CAUTION! All work on the heat pump may only

be performed by an authorised and qualified

after-sales service.

11DECOMMISSIONING

11.1 Shutdown in Summer

Shutting down the heating system in summer is effected by switching the heat pump controller to the "Summer" operating mode.

9.3 Cleaning of Heat Source Side

CAUTION! The supplied strainer is to be install- ed in the heat source inlet of the heat pump in order to protect the evaporator against conta- mination.

The filter screen of the strainer should be cleaned one day after commissioning, thereafter every week. If no more contamination can be noticed any more, the strainer filter can be removed in order to reduce pressure losses.

11.2End-of-Life Decommissioning/ Disposal

Before removing the heat pump, disconnect the machine from the power source and close all valves. Environment-relevant requirements regarding the recovery, recycling and disposal of service fuels and components in accordance with all relevant standards must be adhered to. Particular attention must hereby be paid to the proper disposal of refrigerants and refrigeration oils.

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