Vaillant geoTHERM VWS Installation Instructions Manual

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Vaillant geoTHERM VWS Installation Instructions Manual Manual pdf 39 page image

39Installation instructions geoTHERM VWS 0020046310_016.9 Connecting an external boilerIf your external boiler has a Vaillant eBUS interface, youcan connect it to the heat pump eBUS via the VR32 ac-cessory (refer to the VR32 manual for more informati-on).ABB A12-30-01L1L2L3NPE L1 L2 L3L1 L2 L3 NL1 L2 L3'L3 N N PEL3 N PE L1 L2 L3 PEPE L2 L3L1NABB A12-30-01ABB A12-30-011L 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-M VF2 RF1 VF1 SP BUS DCF/AF EVU 1xZPLP/UV 1VR 32- + DCF 0 AF1x 2P1 2 1 2Tel BUS F AFDC /Fig. 6.19 Connecting to a boiler with an eBUS interfaceBoilers without eBUS interfaces are switched by theheat pump controller via the internal auxiliary heatingcontact (ZH, see Fig. 6.7) using an isolating relay (acces-sory, Vaillant No. 306249).1ABB A12-30-01L1L2L3NPE L1 L2 L3L1 L2 L3 NL1 L2 L3'L3 N N PEL3 N PE L1 L2 L3 PEPE L2 L3L1NABB A12-30-01ABB A12-30-011L 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-M VF2 RF1 VF1 SP BUS DCF/AF EVU 1xZPLP/UV 1N NAufZuLZH LP/UV 1Fig. 6.20 Connecting to a boiler without an eBUS interfaceKey to Fig. 6.201 Isolating relay (Accessory No. 306249)In both cases, the heat pump switches in the externalboiler depending on the heat demand and the controllersetting.6.10 Fitting the cladding and the control panelFig. 6.21 Installing the front upper cladding• Feed the console connector through the opening inthe front lower cladding panel and then press thepanel into the spring retainer on the casing frame.• Screw the cladding panel to the casing with the twoscrews, as shown in the illustration.Electrical installation 6