REMEHA Quinta 30 Technical Information page 43

High-effi ciency condensing boiler

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Fig. 13

control box

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NOTE: Do not use connector X8!

8.2.4 Boiler temperature control

The Remeha Quinta 30 has electronic temperature control with flow and return tempe-

rature sensors. The flow temperature can be adjusted between 20 and 90°C.

8.2.5 High limit temperature protection

The high limit temperature protection device switches off and locks out the boiler when

the flow temperature exceeds the high limit set point (adjustable). When the fault is

corrected, the boiler can be restarted by using the 'reset'-key on the control panel.

8.2.6 Low-water protection (flow and content)

The Remeha Quinta 30 is supplied with a low-water protection on the basis of tempe-

rature measurement, see Fig. 22, Boiler sensor resistance/temp graph. By modulating

back at the moment that the water flow threatens to fall too low, the boiler is kept ope-

rating for as long as possible. In the event of low flow (F/R ΔT = 45°C), the boiler will

shut off and not lockout (ref. Par. 6.4).

If the boiler is fired dry, it will go to high temperature lock out, failure code 1*

8.3 External connections

All external connections (except rematic

strip, located in the instrument box at the bottom of the boiler, accessed by loosening

the two screws, see Fig. 14 and Fig. 15.

57117.indd 43

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2945 C3) are made on the 24 way terminal

1-4-2009 14:35:53

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