Belimo VRU-M1R-BAC Технічний паспорт - Сторінка 3

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Belimo VRU-M1R-BAC Технічний паспорт
Technical data sheet
VRU-M1R-BAC
Application room pressure control (RP)
Room pressure control (RP) for rooms with switchable or variable Δp value P'min...P'max via a
continuous command variable (analogue or bus).
Application A) – with non-critical room leakage rate
Rooms with non-critical leakage rates / overflows, room pressure controller acting on supply or
extract air dampers.
Application B) – with low room leakage rate
Rooms with low leakage rates / overflows, room pressure controller acting on bypass damper
mounted parallel to the VAV unit.
Description see application library
P'nom
OEM-specific calibration parameters: 5...75 Pa
P'max
Maximum operating pressure, adjustable 20...100% of P'nom
P'min
Minimum operating pressure, adjustable 0...100% of P'nom
Room pressure mode
Switchable: negative / positive pressure via Belimo Assistant App or BACnet/Modbus
Application room pressure cascade control
Room pressure cascade control (RPC) for rooms with low leakage rates / overflows acting on
(RPC)
volumetric flow controller, with switchable or variable Δp value P'min...P'max via a continuous
command variable (analogue or bus).
P'nom
OEM-specific calibration parameters: 5...75 Pa
P'max
Maximum operating pressure, adjustable 20...100% of P'nom
P'min
Minimum operating pressure, adjustable 0...100% of P'nom
Room pressure mode
Switchable: negative / positive pressure via Belimo Assistant App or BACnet/Modbus
Demand Controlled Ventilation (DCV)
Output of the demand signal (damper position) to the higher-level automation system – DCV
function.
Bus operation
Thanks to the multi-bus functionality of the VRU-...-BAC, the VAV universal controllers can be
easily integrated into a bus system. The communication interface is defined on the system using
the Belimo Assistant App: BACnet MS/TP, Modbus RTU, Belimo MP-Bus.
A hybrid mode is optionally available for BACnet MS/TP and Modbus RTU, bus connection
combined with analogue control.
In bus mode, a sensor (0...10 V / passive) can optionally be connected, e.g. a temperature
sensor or a switching contact, for integration into the higher-level bus system.
MP-Bus application Compatibility mode:
Standard / VRP-M:
Standard / VRP-M
The VRU-..-BAC is based on the new Belimo MP data pool model.
If the VRU-..-BAC is used as a VRP-M replacement in an existing MP-Bus system, the VRU-..-BAC
can be set to the VRP-M function with the compatibility mode parameter. See instructions: VAV-
Universal - MP-Bus Existing system: Replace VRP-M with VRU-..-BAC.
www.belimo.com
VRU-M1R-BAC • en-gb • 2023-10-05 • Subject to change
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