VRU-M1R-BAC
Details
Details
VRU-M1R-BAC VAV-Universal Controller, Static diaphragm Sensor, -0.3 to 0.3 in. WC
Modular VAV controller for room pressure control in comfort and sensitive areas. Pairs with a separately ordered Belimo VST damper actuator. Communicates over BACnet MS/TP, Modbus RTU, or MP-Bus.
Key Features
- Actuator: sold separately (VST models)
- Transformer sizing: 2 VA plus the actuator
Product Specifications
| Manufacturer | Belimo |
|---|---|
| Model | VRUM1RBAC (VRU-M1R-BAC) |
| Nominal voltage | AC/DC 24 V |
| Nominal voltage frequency | 50/60 Hz |
| Nominal voltage range | AC 19.2 to 28.8 V / DC 21.6 to 28.8 V |
| Power consumption in operation | 1.5 W |
| Transformer sizing | 2 VA plus connected VST actuator |
| Inrush current | 20.0 A @ 5 ms, incl. actuator |
| Connection supply/control | Terminals 2.5 mm2 |
| Sensor input S1 | Connection of external sensor (passive / active / switch) |
| Actuator Connection (I) (M) | AC/DC 24 V, PP-Link for VST actuator |
| Communicative control | BACnet MS/TP Modbus RTU MP-Bus |
| Number of nodes | BACnet / Modbus see interface description MP-Bus max. 8 |
| Operating range Y | 2 to 10 V |
| Input impedance | 100 kΩ |
| Operating range Y variable | 0 to 10 V |
| Position feedback U note | Max. 0.5 mA Options: Δp / Position |
| Position feedback U variable | 0 to 10 V Start point 0 to 8 V End point 2 to 10 V |
| Override control | z1 motor stop / damper OPEN (AC/DC 24 V) z2 damper CLOSE / MAX (AC/DC 24 V) |
| Configuration | via Belimo Assistant 2 |
| Measuring principle | Belimo M1R, static diaphragm sensor |
| Installation orientation | position-independent, no zeroing necessary |
| Functional Range Differential Pressure | -0.3 to 0.3 inch WC (-75 to 75 Pa) |
| Burst pressure | +/-28 inch WC (+/-7 kPa) |
| Condition Measuring Air | 32 to 122 deg F (0 to 50 deg C) / 5 to 95% RH, non- condensing |
| Pressure tube connection | Nipple diameter 0.2" (5.3 mm) for pressure tube (3/16" (5 mm) inner diameter) |
| Protection class IEC/EN | III, Safety Extra-Low Voltage (SELV) |
| Protection class UL | III, Safety Extra-Low Voltage (SELV) |
| Power source UL | Class 2 Supply |
| Degree of protection IEC/EN | IP42 |
| Degree of protection NEMA/UL | NEMA 1 |
| Housing | UL Enclosure Type 1 |
| EU Conformity | CE Marking |
| Certification IEC/EN | IEC/EN 60730-1 |
| UL Approval | cULus according to UL60730-1, CAN/CSA E60730-1 |
| UL 2043 Compliant | Suitable for use in air plenums per Section 300.22(C) of the NEC and Section 602 of the IMC |
| Type of action | Type 1 |
| Rated impulse voltage supply / control | 0.8 kV |
| Pollution degree | 2 |
| Ambient humidity | Max. 95% RH, non-condensing |
| Ambient temperature | 32 to 122 deg F (0 to 50 deg C ) |
| Storage temperature | -40 to 176 deg F (-40 to 80 deg C) |
| Servicing | maintenance-free |
| Weight | 0.69 lb (0.32 kg) |