Technical data

Instructions on commissioning, maintenance, and troubleshooting for auroSTOR 0020111119_02 49
– eBUS-compatible Vaillant gas-fired wall-hung boiler
– Wiring via VR68/2 solar module and VR61/2 mixer
module
– Control of the solar circuit via a VRC weather compensa-
tor and the VR 68/2 solar module
– Control of the primary heating circuit via a VRC control-
ler
– Control of the room heating via a VRC controller
– S plan hydraulics with VR81 for 2nd zone
> Next to the solar cylinder, install the VR61/2 mixer
module.
> Install a VRC weather compensator next to the solar
cylinder.
> Dismantle the covers of the VR 61/2 and the VRC cont-
roller.
> Insert a VR10 temperature sensor into the cylinder dry
pocket for SP2 (6¬fig. 6.11).
> Connect this lower cylinder sensor (SP 2) to the terminal
SP 2 of the VR68/2.
> Insert a VR10 temperature sensor into the bottom cylin-
der dry pocket for SP1 (3¬fig. 6.11).
> Connect this upper cylinder sensor (SP 1) to the terminal
SP 1 of the VR68/2.
> Mount the VR11 collector sensor (Kol1) in the provided
sensor sleeve on the collector array.
> Connect the VR11 collector sensor (Kol 1) to the terminal
Kol1 of the VR68/2.
> Mount the casing(5¬fig. 6.11) on the cylinder and use
the cutouts in the casings for routing the cables.
> Mount the front claddings of the casing.
The electrical installation of the eBUS connection is
described in the installation instructions for the Vaillant
dual-channel eBUS controller.
> Install the eBUS connection from the gas-fired wall-hung
boiler to the VR61/2.
> Install the eBUS connection from the gas-fired wall-hung
boiler to the VR68/2.
> Install the eBUS connection from the gas-fired wall-hung
boiler to the VRC controller.
> Optional: Install the eBUS connection from the gas-fired
wall-hung boiler to the VR81.
> Connect the zone valves for the heating circuit and hot
water circuit in accordance with connection diagram 5 (S
plan hydraulics).
> Connect the gas-fired wall-hung boiler, VR61/2, and
VR68/2 to the power mains.
> Mount the covers of the VR 61/2, the VR 68/2 and the
VRC controller.
> Adjust the Vaillant dual-channel eBUS controller in
accordance with its operating and installation instruc-
tions.
> Set the maximum cylinder temperature (MAXT 1) to 75 °C
(factory setting) on the VRC weather compensator (see
operating instructions for the VR 68/2).
Installation 6