Sunsystem BURNiT Magna WBS-A 450, Технический паспорт, руководство по установке и эксплуатации

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TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
27-EN
10.9. Modes of operation
A proper symbol for each operation mode is shown in the lower, right corner of the
display. Depending on the mode of operation a specific letter is displayed:
D – house heating, B – boiler priority,
R – parallel pumps, L – summer mode.
10.9.1. House heating priority
If you select this option, the controller will switch to the house heating mode. The
central heating pump is activated when the boiler temperature is above the pump
activation temperature (set to 35°C by default). Below this temperature (minus
central heating hysteresis of 2°C), the pump is shut off. While in the house heating
mode, the letter D is displayed in the bottom right corner of the main screen.
10.9.2. DHW priority (WUW Priority)
Activating the DHW priority will cause the regulator to switch into the DHW priority
mode. In this mode, the WUW pump is activated until the set WUW temperature
(domestic hor water temperature) is reached. Then, the WuW pump is shut off and
the CH pump is activated. The central heating pump will run until the DHW
temperature drops below the set point value (and the WUW hysteresis); then, the CH
pump is shut off and the WUW pump is activated.
The DHW priority function means that the domestic hot water is heated up first
before heating up water in radiators. Change of the set DHW temperature can be
done by pressing Exit button (holding down for a short time). The display will show
the WUW temperatures screen for a short time. Set temperature can be changed
with buttons UP and DOWN. After few seconds the display will return to its previous