Drayton SHR 521 20 Manuale di Servizio

Thank you for buying a Drayton product.Please read this manual carefully to get the best perfomance from this unit.Drayton SHR 521 20InstallationCommi

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 104. Control parameters and menu mode4.1 Mode-overviewLegend:xCorresponding mode is available.x*Cor

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd11 |4.1.1 Indication of collector temperaturesShows the current collector temperature.• COL : colle

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 124.1.6 Heat quantity balancing OHQM:Heat quantity balan-cing Adjustment range: OFF ... ON Factory se

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd13 |4.1.7 ∆T-adjustmentPlease note: Switch-on temperature difference DT O must be at least 1 K h

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 14CMN: Minimum collector tempera-ture adjustment range -10 ... 90 °C Factory setting 10 °CCMX: Ma

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd15 |4.1.14 Tube collector special functionIf the controller measures an increase of 2 K compared to the

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 16For commissioning and service work the operating mode of the controller can be manually selected by

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd17 |1 2S1 S2 S33 4 5 6Temp. SensorPt1000LNR1NR2N201918171615S47 81413122 (1) A (220 ... 240)V~2 (1) A (

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 18Pump starts for a short moment, switches off, switches on again, etc. (“controller hunting“)Is the

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd19 |Stores are cooled during the night.Does collector circuit pump run during the night?no yesCheck the

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 2ContentsDisclaimer ...2Safe

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 20Distributed by:Please note:The design and the specifications are to be changed without notice.The il

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd3 |!• Backlit multifunction display to monitor solar thermal sys-tems• Up to 4 Pt1000 temperature

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 4Examples SHR 521 20Please find detailed con-nection diagramms for these systems in chap-ter 1.Standar

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd5 |displaypushbuttonscan fuse 4Acable conduits in the clampscover1.1 MountingThe unit must only be

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 6S1S2S4 / TRF1.2.1 Allocation of terminals for system 1 Standard solar system with 1 store, 1 pump a

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd7 |132backwardsforwardSET(selection / adjustment mode)The system monitoring display consists of 3 block

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd| 8The system screen (active system scheme) shows the schemes selected on the controller. It consists

SHR 521 20© Drayton 06334 SHR 521 20.monen.indd9 |3. Commissioning To commission you have to adjust the solar thermal system System types:Arr 1 : st