Bedienungsanleitung Remeha Sol Plus (Seite 4 von 72) (Englisch)

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Sol Plus solar controller

The Sol Plus has been especially developed for the speed control of high-efciency

pumps in standard solar and heating systems. It is equipped with 2 PWM outputs.

Solar packages for DHW heating and heating backup with DeDietrich boilers:

The SOLAR Sol Plus with “SOLARFIRST” function (see page 47) and ModBus

controls a solar system with 1 collector eld and 1 store with integrated heat ex-

changer. The Sol Plus is designed for DHW heating and heating backup.

The Sol Plus controllers are equipped with the “SOLARFIRST” function via

ModBus and can be connected to DeDietrich boiler controllers by means of Mod-

Bus cables.

As soon as the solar control switches on, the system will be set to solar priority via

the connection to the boiler.

The set hot water temperature will be reduced (adjustable 0-30 K). This way, the

water will be heated by the solar system rst. If the solar system switches off, so-

lar priority will be stopped and the controller switches the boiler to its standard

adjustments.

Due to this function, the solar system can supply 20 % more heat for the store.

The “STEAMBACK” safety concept:

The Sol Plus controller is part of the “STEAMBACK” safety concept. If the col-

lector temperature reaches 130 °C, all functions will be deactivated. The uid in

the collector continues heating and will turn into vapour at 140 °C. It will then be

pressed into the expansion vessel through extension.

The collector will not contain any solar uid then. There will be no steam ham-

mer - the solar uid will not be harmed. If the suns goes down and if the collector

temperature falls below 140 °C, the solar uid will condense and the pressure in

the expansion vessel will ll the collector again. Only if the collector temperature

falls below 100 °C and that of the store below 60 °C, will the controller activate

the solar system.

Whether holiday, power failure or fault - the DeDietrich “STEAMBACK” safety

function protects your solar system and makes it maintenance-free and durable.

The Sol Plus solar controller is used for controlling a solar system with 1 store with

integrated heat exchanger and one 3-port valve for return preheating. It can also

control a solar system with 1 store with 2 integrated heat exchangers via a 3-port

valve. The Sol Plus is designed for DHW heating and heating backup in solar thermal

systems connected in series.

It can be directly mounted onto the pump station. For using several functions such

as store base/top or combined store with return preheating, the controller can also

control a 3-port valve in addition to the solar circuit pump. The parameter Arr can

be used for selecting the system conguration.

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Remeha Sol Plus Seite 4

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