Manual Dimplex SRX 160C (page 7 of 36) (English, German, Dutch, Danish, French, Polish, Turkish, Norwegian, Finnish)

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Cooling mode

The cooling function is only available if cooling mode has

been set on the heat pump.

Press the button once or several times until the yellow

indicator lights up.

Set the desired room temperature with the setting wheel.

Depending on the current room temperature and the tem-

perature set on the thermostat, the electronics calculate

which fan level (fan speed) to use.

There are 3 possible fan levels. If necessary, the number of pos-

sible fan levels can be reduced. For instance, to limit the fan

levels to a maximum of 2, press the button once or sev-

eral times until the red 2 indicator lights up.

Changing automatically the set temperature

You can change the set temperature automatically using a suit-

able programming cassette or by directly activating the control

conductor, for example with an external timer.

How the set temperature is changed depends on the selected

operating mode:

- In heating mode the set temperature is lowered

- In cooling mode the set temperature is increased

If there is a control signal, then depending on the selected

mode, either the indicator lamp (heating) or the indica-

tor lamp (cooling) flashes.

The temperature change is forwarded to any downstream de-

vices via the control conductor.

Fault indication

If the flow temperature is not within the required range (see ta-

ble under "Technical data"), operation is interrupted and the

red indicator flashes.

In this case you should check that the settings of the heating

system and circulating pump are correct and that they are work-

ing properly. For more information, please refer to the "Trou-

bleshooting" chapter.

Operation with air/water heat pumps

When operating with an air/water heat pump, particularly when

temperatures are low outside, the heat pump's buffer tank

must be at a temperature of at least 14°C to ensure that the

heat pump evaporator can thaw. You should therefore ensure

that thawing has taken place if necessary before opening the

valves to the heating circuit.

Troubleshooting

The following causes can result in the unit producing insufficient

output:

• Indicator flashes:

Insufficient flow temperature.

See "Fault indication"

• Indicator , flashes:

Set temperature automatically lowered or raised.

See "Changing automatically the set temperature"

• Air trapped in heat exchanger:

Disconnect device from power supply, remove casing

and bleed heat exchanger. For position of bleeder screw,

see fig. 4.

• Insufficient water flow rate through device:

Adjust flow rate (hydraulic balance). To do this, close ther-

mostat valves on the other heaters.

• Dirt on heat exchanger:

Clean heat exchanger, see "Maintenance".

Cleaning outer surfaces

The heater must be switched off and cooled for cleaning. The

surfaces of the heater can be cleaned by wiping with a soft,

damp cloth and then dried. Do not use abrasive powder or fur-

niture polish to clean as these may damage the surface.

During Installation:

If the appliance is being installed in a dusty environment we

recommend covering the appliance to prevent the ingress of

dust.

Maintenance – to be performed by a specialist

Dust or lint that collects inside the heater must be removed at

regular intervals.

To do this, disconnect the device from the power supply, loosen

the 4 fixing screws on the underside of the casing and carefully

remove the casing cover. Remove dirt with a soft brush or a

vacuum cleaner.

Build-up of air in the heat exchanger can be remedied by open-

ing the bleeder valve (fig. 4).

Warranty

We offer a two-year warranty for this device in accordance with

our warranty conditions.

United Kingdom Dimplex – a division of the GDC Group

Millbrook House Phone +44 0845 600 5111

Grange Drive, Hedge End Fax +44 0148 977 3050

Southampton, Hants, SO30 2DF www.dimplex.co.uk

Republic of Ireland Dimpco Ltd

Airport Road Phone (+353) 01 842 839

Cloghran Fax (+353) 01 842 839

Co. Dublin www.dimpco.ie

Subject to modifications

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Dimplex SRX 160C Manual

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