RSVB VAV Terminal Units

RSVB Variable Air Volume (VAV) HVAC systems are the best solution to guarantee high levels of comfort and energy efficiency in civil and industrial applications. VAV systems are well suited for the climate control of modern office buildings, with extensive glass facades and variable occupancy levels which cause uneven cooling loads profiles, with relevant values even in the winter season. For industrial process applications, such as research laboratories, the use of VAV systems allows to maintain the required differential pressure levels between adjacent rooms together with low energy consumption....

SagiCofim Construction Casing in galvanized steel Z 200 Air flow measurement device in extruded aluminium Air flow control blade with air tightness class 4 EN 1751 Casing with air tightness class A EN 1751 Control measurement range (0) 2...14 m/s Working pressure 30.1000 Pa Casing with glass wool insulation with non-abrasion finishing Double insulation version with intermediate layer for irradiated sound attenuation_ Supply and return models Actuator with pressure sensor and VAV-Compact controller type LMV D3 MP F SG (linearized Sagicofim) RSVB terminal units can be used both on air supply and...

RSVB Dimensions and weights Notes • For all models the external dimensions do not change • The inspection door is provided only for hospital application models • Double insulation models have the same dimensions of standard models • A high sound attenuation of the irradiated noise is provided by the application of a soundproof material between the glass wool layer and the galvanized steel outer casing • A rectangular flange with threaded inserts is available for duct installation or coupling with RSVBH / RSVBS Example of application on supply side with reheat coil and sound attenuator Provide...

SagiCofim Acoustic and air flow data Attenuation is calculated for room irradiated noise + ceiling 9 dB/octave Attenuation for air distribution, low pressure side m3/h 2000 2500 3000 3500 4000 5000 6000 Attenuation for terminal dB/octave Frequency Hz 125 250 500 1000 2000 4000 8000 8000

RSVB Table 2 Sound power / Lw in dB, ducted noise The acoustic data are tested according to EN ISO 5135 : 2003 Acoustic data configuration in reverberant chamber

SagiCofim Table 3 Sound power / Lw The acoustic data are tested according to EN ISO 5135 : 2003 Table 4 Sound power / Lw in dB, irradiated noise for RSVB I (insulated) The acoustic data are tested according to EN ISO 5135 : 2003

RSVB Air flow values Minimum value of Vmax, programmable Legenda V nom Nominal air flow (S x 14 m/s velocity) V max Max air flow, setting 40...100 % V nom V min Min air flow, setting &15 % V nom V int Setting 0...100 % range V min...V max 0 In the closing position air tightness values comply with class C4

RSVB Electrical data Connections to safety transformer 1 LMV-D2-MP SG Technical data • Supply voltage 24 V AC / DC • Power consumption 2,5 W / 5 VA (max 5 A @ 5 ms) • Cable connection 1 m, 4 x 0,75 mm2 • Protection class III love voltage • Protection class IP54 • EMC CE according to 89/336 EEC Feedback signal U5 / MP-bus The U5 terminal provides a constant feedback of the actual air flow and is also the digital communication terminal with MP accessories. It is important to bring it on the control panel for operation data and functions re-programming. Notes for PP standard setting: • Comply with...

Rectangular sound attenuators for VAV terminal units SagiCofim Construction Casing in galvanized steel Connection flanges with holes Splitters with glass wool insulation for high attenuation performances, protected with laminated non-woven glass fabric against abrasion, with aerodynamic profile for low pressure drop and low self-regenerated noise levels. Modular construction with plenum 300 mm + splitters standard length 1200 mm Special version RSVBS / LF With sound attenuation splitters, protected by perforated sheet Special version RSVBS / HOSP With sound attenuation splitters, protected by...

Hot water reheat coils RSVBH Construction Standard version 2 rows, with copper tubes 16,5 mm Aluminium fins, tk. 0,13, threaded connections Casing in galvanized steel 15 / 10 with air-tight sealing Perforated flanges for RSVB Version with 40 tube pitch (for low temp. hot water) Version with 60 tube pitch (for high temp. hot water) Pressure test at 2 MPa (20 bar) Dimensions must be suitable for the related terminal unit. Data for selection and sizing Required power = kW Inlet air temp. = °C Inlet water temp. = °C Outlet water temp. = °C Providing the above information,...

Application examples VAV - Compact for stand-alone applications Individual room comfort + • Wide range of potential applications • Adjustable to each application • Demand-based single-room application • Operation with Fan Optimiser Active / passive sensor Room temperature control panel VAV - Compact with bus connection and sensor integration Interface MP Intelligent simplicity • System connection to DDC controller with MP interface via MP-bus ® • Integration in higher-level systems such as LONWORKS ®, Konnex. Ethernet TCP/IP, Profibus DP, etc. via MP gateway • Convenient, cost-efficient wiring...

Application examples Parallel control for air supply and return Operation principle 1 The control signal is sent both to the Master and to the Slave controller which have the Vmin and Vmax set point. 2 The difference between the Master and the Slave air flow has the same absolute value on the whole control range. Air flow value measurement signal Es. 0...10V To maintain: positive room pressure = Supply > Return negative room pressure = Supply < Return Constant difference between supply and return Supply Room MASTER / SLAVE control Operation principle 1 The control signal is sent to the MASTER...