Vaillant geoTHERM VWS Installation Instructions Manual

Also see for geoTHERM VWS: Installation instructions Operating manual Operating manual

Contents

Vaillant geoTHERM VWS Installation Instructions Manual Manual pdf 31 page image

31Installation instructions geoTHERM VWS 0020046310_016.5 Controller PCB at a glance1L L L L L 1 LN N N N N 2 N 2 1 2 1L N2 3 4 5 SCH 6 7 8 ASBN NAufZuL N 1 2 1 2 1 2 1 2 1 2 1 2DCF OT AF -+AufZuZHNLZPNLSK2-PNLHK2-P HK2 VF2 RF1 VF1 SP BUS DCF/AF EVU 1xZPLP/UV 11 2 3 4 5 6 7 8 9 10 11 12 13 142133 32 31 30 29 28 27 26 25 241516181719222320Fig. 6.7 Controller PCBKey to Fig. 6.7Upper connection terminals1 Electric auxiliary heating2 LP / UV 1 3-port diverter valve for hot water generation3 Circulation pump for hot water4

unused5

External (second) heating circuit pump6 Actuation of 3-way mixer valve7 VF2 External flow sensor - must always be installed!8 RF1 Temperature at bottom of buffer cylinder9 VF1 Temperature at top of buffer cylinder10 SP DHW cylinder temperature sensor11 BUS eBUS12 DCF / AF Outside temperature sensor + DCF signal13 EVU EVU contact (ripple control signal from powercompany)open: compressor operation permittedclosed: compressor operation blocked14 1xZP Contact for one-shot request forcirculation pump, e.g. via buttonPCB components15 eBUS/vrDIALOG16 eBUS address rotary switch, set to "1" (factory setting)17 Fuse T 4A/250 V18 Check LED for power supply (lights green if OK)19 Fuse T 4A/250 V for brine pump20 Monitoring for starting current limiter21 Controller plug (User Interface)22 Sensor connection plug 123 Sensor connection plug 2Lower connection terminals24 ASB Actuation of starting current limiter25 8 Compressor contactor26 7 Pressure switch27 6 (not connected)28 SCH unused29 5 Brine pump30 4 Power supply, PCB31 3 Internal heating circuit pump32 2 unused33 1 unusedThe controller PCB has a protective cover plate whichhas cut-outs for the eBUS/vrDIALOG (Item 15) connec-tion, as well as for the power supply LED (Item 18).The cover plate must be removed to change the fuses,Items 17 and 19.Electrical installation 6