Description of functions and units
Installation instructions geoTHERM 0020051574_04 13
3
3.4 Optional accessories
You can use the following Vaillant units to enhance the heat
pump system. Further information about installing Vaillant
units is available in ¬Ch.7.7.
VR 60 mixer module
With the mixer module, you can expand the control system
of the heating installation by two mixed circuits. You can
connect a maximum of six mixer modules.
VR 90 Remote control unit
You can connect a separate remote control unit for the first
six heating circuits (CH 4 – CH 15).
VR 10 standard sensor
Depending on the system configuration, additional sensors
may be required, for example, as supply, return, collector or
tank sensors.
vrDIALOG 810/2
vrDIALOG is a communications unit with software and a
connecting cable that provide the option to diagnose, moni-
tor and set parameters for the heat pump on-site from a
computer.
vrnetDIALOG 840/2, 860/2
The vrnetDIALOG communications unit provides the option
to carry out remote diagnosis, monitoring and to set param-
eters from one computer via a telephone connection or an
integrated GSM modem, irrespective of your current loca-
tion.
VPS heating water buffer tank
The VPS buffer tank is used as an intermediate cylinder for
heating water and can be installed between the heat pump
and the heating circuit. It provides the energy that is
required to bridge any idle periods from the power com-
pany.
VIH and VDH domestic hot water cylinder
The Vaillant VIH coiled tube tank and the Vaillant VDH dou-
ble wall tank are specially designed to be combined with
heat pumps and are used for heating and storing hot water.
VPS /2 buffer tank
The VPS /2 buffer tank (available as an option with VPM-W
fresh water unit or VPM-S solar charging unit) is used as
temporary storage for heating water and can be fitted
between the heat pump and the heating circuit. It provides
the thermal energy that is required to bridge any idle peri-
ods from the power company.
Other accessories that are available from Vaillant
– Brine concentrate
– Filling pump for brine circuit
– Heat pumps for brine filling unit
Other accessories
– Safety group and drain pipe for heating circuit
– Expansion vessel for heating circuit
– Expansion vessel for hot water circuit
– Expansion vessel for brine circuit
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