SYSTEM VAV-Controller. for Variable Volume Systems Type VBS

Transcription

1 SYSEM VAV-Controller for Variable Volume Systems ype VBS

2 Contents Description VAV - Controller ype VBS-A VAV - Controller ype VBS-B SYSEM VAV - Controller type VBS are volume flowrate controllers for supply air on variable volume systems hey consist of a casing with circular inlet spigot and rectangular outlet connection, integral attenuator for the reduction of regenerated noise, damper blade and averaging differential pressure grid for monitoring the volume flowrate he damper blade with plastic seal is air tight to DIN 194 in the closed position Because the casing can be supplied in alternative lengths the unit can be selected to meet the specification requirements he attenuator length is short in construction and therefore the units are especially suitable for systems with less stringent acoustic requirements and limited space he VBS unit can be supplied with two or four row reheat coils or electric heater, if required he unit also incorporates the control components, (velocity controller, transducer, actuator, room temperature controller) which are factory fitted, wired and tubed Each VAV unit is aerodynamically tested at the factory and set to the required volume flowrates Description Construction and Dimensions Air Volume Control Duct Connection Nomenclature and Aerodynamic Data Regenerated Noise Case Radiated Noise Reheat Coil Data Order Details VAV-Compact Fan optimiser COU24-A-MP Contents D-VAV001E-1 Subject to technical changes 2

3 Description Belimo Offer otal Solutions for VAV System VAV Compact controllers Product range ypes / rating classes Applications Specifications LMV-D2-MP ( Nm) NMV-D2-MP (10 Nm) SMV-D2-MP ( Nm) LMV-D2LON ( Nm) NMV-D2LON (10 Nm) Control of VAV and CAV units for air volume control in buildings Compact unit with sensor, controller and actuator Simple startup with PC-ool VAV Universal solutions Product range ypes / rating classes Applications Specifications VAV Universal controllers: VRD2 with integrated sensor VRP with external static sensor Control of VAV and CAV units in buildings VAV laboratory applications Easy handling Plug-and-socket connectors for sensor and actuator Wide range of peripheral devices VAV Universal pressure sensor (static): VFP / 300 / 00 (pressure range 00 Pa) Actuators: LM, NM, AM and GM series (30 Nm) NMQ fast running variant (< s) LF and AF series spring return actuators (4 /1 Nm) For severely contaminated atmosphere or aggressive gases: Used in conjunction with VAV Universal controllers Used in conjunction with VAV Universal Plug-and-socket connections to VRP No wiring required due to plug-and-socket connections Broad coverage with numerous motor variants Room controller system solutions Product range ypes / rating classes Applications Specifications Room temperature controllers: With user interface: CR24-B1 / B2 / B3 Without user interface: CR24A1 / A2 / A3 Single room control in comfort zone for VAV or air control dampers Water or electric reheaters Chilled ceilings or aftercoolers Combined systems Modern design otal solution Extended functionality Simple operation Energy efficiency Minimal engineering, startup and maintenance costs D-VAV001E-1 Subject to technical changes VAV system control solutions Product range ypes / rating classes Applications Specifications COU24-A-MP Fan Optimiser: VAV system with fans that are controlled by a frequency converter (VFD) Energy saving Lower costs Cutting installation work Easier commissioning Optimum cost Flexible system designs 3

4 Description Belimo Offer otal Solutions for VAV System otal Solutions for VAV System Frequency converter Setpoint COU24-A-MP Fan optimiser VAV-compact MP1 Room occupancy MP2 MP3 Room demand CR24 CAV Cooling requirement Volumetric flow Damper position CR24 VAV VAV Individual room climate control Belimo s elegant CR24 room temperature controllers allow the room climate to be optimally adapted to individual requirements and to actual heating and cooling needs hey combine increased convenience with an energy-optimised solution VAV-Compact Controller, Convenient energy savings A pressure sensor, digital VAV controller and damper actuator all in one, providing a VAV-Compact solution with a communication capability for pressure-independent VAV and CAV system in the comfort zone Demand based system solution hanks to the Belimo Fan Optimiser, system fan can be controlled based on demand according to the damper positions of the downstream VAV unitssupply pressure regulation presently the standard method - can thus be dispensed and fan energy consumption cut by as much as 0% Cost will be cut substantially and the convenience for users increased Function he damper position of each VAV unit is transferred to the Fan Optimiser via the MP-BusIt is used there as a control variable to facilitate energy efficient operation of the frequency converter controlled fanshe damper which is open the widest serves as a reference Advantages Fan energy consumption reduced by up to 0% Cost saving because supply air and outgoing air pressure controls are eliminated Reduced flow noise thanks to the lower pressure in the air duct system Automatic compensation of pressure losses due to filter contamination guarantees supply regularity Rapid payback even in small or medium-sized buildings Flexible system concepts (CAV, VAV or combined CAV/VAV) Simple engineering and efficient commissioning thanks to pre-configuration, LCD display and adaptive control characteristics D-VAV001E-1 Subject to technical changes 4

5 Construction and Dimensions Construction Casing - Circular inlet spigot suitable for ducts to DIN or DIN with groove for lip seal (Lip seal can be factory fitted or site fitted by others) - Suitable for slide on flange on discharge end - Suspension points in edge of casing for support rods - Leakage flow rate to Class II, VDI 3803 or DIN V , Part 2 - Conforms with clean room Class 3 VDI 83 and Class US Standard 9b Volume Control - Electronic volume flowrate controller - Suitable for supply air - Volume flow range approx 10:1,depending on the type of controller - High accuracy of control because of averaging differential pressure grid, even with unfavourable duct connections (see page ) - Differential pressure range to 1 Pa - Full shut-off of damper blade facility - Damper blade leakage to DIN194, Part 4 - Operation independent of mounting position - Factory volume setting and aerodynamic testing of each unit - Maintenance free damper blade mechanism - Volume flowrate can be measured and adjusted - Operating temperature 10 to 0 C Re-heat Coil - For terminal reheat of primary air - Casing from galvanised sheet steel, with flanges - Copper tubes and aluminium fins - wo or four row - Supplied factory fitted or supplied loose - Maximum operating pressure 1 bar - Horizontal water connections - Control valve should be mounted on site - Electric heater, if required, can be supplied Materials - Casing from galvanised sheet steel - Attenuator section lined with mineral wool having glass fibre facing suitable of air velocities upto m/s Material rating A2, DIN Galvanised sheet steel damper blade with PE elastomer seal - Aluminium sensor tubes - Polyurethane plain bearings ype VBS-A VBS-B E R A 70 L 1,L 2 70 max F E G F D a B M8 0 K 10 ca H Maximum space requirement for actuator/ control components Duct connection or reheat coil Reheat coil 1) Outlet Spigot Slide on flange R 1 /2 F 10 (E -22) x 22) C E D a Compressible seal, by others Duct connection or reheat coil (F - M 0 D-VAV001E-1 Subject to technical changes able 1: Dimensions in mm Size Duct connections Casing D a E F R G A B C H K L 2) 1 L 3) 2 M Allow access to control components able 2: Weight in kg Size VBS-A VBS-B Reheat Coil 2RR 4RR ) Casing depth for 2RR = 70 and for 4RR = 110 2) Compact construction (VBS-A) 3) Long construction (VBS-B)

6 Air Volume Control Duct Connection Control of Room emperature by Cascade Control he VBS unit consists of a casing with circular inlet spigot and rectangular outlet connection A differential pressure grid incorporated in the circular inlet spigot monitors the air velocity pressure for the volume flowrate present he room temperature controller resets the volume flowrate controller on the VBS to move values between the factory set minimum and maximum volume flowrate, as a function of the room temperature Differential pressure grid Damper blade ransducer Actuator Room temperature controller (Seperate order is required) Volume flow controller he pressure measured on the differential pressure grid is converted by the transducer, to an electrical input to the velocity controller his signal is compared with the set point value, and any variance is corrected by the damper actuator so that the air volume is controlled within a small tolerance, over the working pressure range able 3: Volume Flow Ranges l/s m 3 /h Size V min ) Vmin=0 is also possible V max V 1) minunit V min Vmin- unit 1) to from to to from Vnom V max to Vnom Volume Flow Control p st min min D Main duct min1d Air flow direction VBS-A Control Diagram Volume flowrate/ heat output V nom V max V min Air reheat Heating sequence Room temperature Volume flowrate Cooling sequence able 4: Volume Flow Control olerances 1) Volume flow V in ±% as%ofvnorm <10 > 1) Percentage figures based on Vactual D-VAV001E-1 Subject to technical changes

7 Nomenclature and Aerodynamic Data Nomenclature fm in Hz: Octave band centre frequency Lw in db: Sound power level (re 1pW) of regenerated discharge air noise measured in a reverberation chamber L in : A-weighted sound power level (re µpa), including room attenuation of 8 db/oct : Noise criteria of sound pressure spectrum including room attenuation of 8 db/oct pst in Pa: Static pressure differential pst min in Pa: Minimum static pressure differential pw in Pa: Pressure across differential pressure grid V in l/s or m 3 /h: Volume flowrate V in %: Accuracy of set volume flowrate (Poor inlet connections can increase this value) RR K mw mwk Q te ta twm v pv t tw : Number of rows : Number of circuits in kg/s: Mass flow (water) in kg/s: Mass flow per circuit in kw: Heat output in C: Inlet air temperature in C: Discharge air temperature in C: Mean water temperature in m/s: Air velocity in section CxM in kpa: Water pressure drop in k: Air temperature differential in K: Water temperature differential D-VAV001E-1 Subject to technical changes able : Volume flowrate ranges, and minimum pressure differential and flowrate tolerances Size ) typical values V 1) in l/s in m 3 /h VBS-A VBS-B p st min in Pa with reheat coil VBS-A VBS-B 2RR 4RR 2RR 4RR V 1) in %

8 Regenerated Noise VBS-A Example Given: VBS-A Size 0 V= 4 to 31 l/s or 12 to 1134 m 3 /h Pst = Pa Specified room sound pressure level L assuming 8 db/oct room attenuation Required: Regenerated noise L in room at 31 l/s or 1134 m 3 /h Result: L = 2, specification is met Correction Values Number of rows 2RR 4RR LindBor 9 able : Regenerated noise VBS-A p st = Pa V Size l/s m 3 / h 00 in L p st = Pa 00 in L p st = Pa 00 in L p st = Pa 00 in L < < 17 < < < < < < < < indicates values lower than 1 D-VAV001E-1 Subject to technical changes 8

9 Regenerated Noise VBS-B Example Given: VBS-B Size 10 V = 17 l/s or 0 m 3 /h Pst = Pa Specified room sound pressure level L 4 assuming 4 db/oct room attenuation Required: Regenerated noise L in room at 17 l/s or 0 m 3 /h Correction values Number of rows 2RR 4RR LindBor 9 Calculation f m Lw 1) Duct attenuation 1) Room attenuation A-weighting Corrected level 1) see VDl 81 for example Result: 1k 2k 4k 8k L approx 43 based on logarithmic addition, specification is met able 7: Regenerated noise VBS-B Size l/s V m 3 / h p st = Pa 00 in L p st = Pa 00 in L p st = Pa 00 in L p st = Pa 00 in L D-VAV001E-1 Subject to technical changes < < < < < < < < < 1 < < < < < 1 1 < < < < < < < < < < < < < < < < < < < < < < < < < < < < < 1 < < < < 17 < < < < < < 19 < < < < < < < < < < < < 1 < < < < < < < < < 18 < < < < < < < < < < < < < < < 1 < < < < < < < < < < < < 19 < < < < < < < < 1 < < < < < < < < < indicates for values lower than 1 9

10 Case Radiated Noise VBS-A Example Given: VBS-A Size V = 139 to 470 l/s or to 192 m 3 /h Pst = Pa Specified room sound pressure level L 4 assuming 8 db/oct room attenuation Required: Case radiated noise L in room at 470 l/s or 192 m 3 /h Result: L = 39 specification is met able 8: Case Radiated Noise VBS-A Size l/s V m 3 / h p st = Pa 00 in L p st = Pa 00 in L p st = Pa 00 in L p st = Pa 00 in L < < < < < < < < < 1 < < < < < 1 1 < < < < < < < < < < < < < < < < < < < < < < < < < < < < < 1 < < < < 17 < < < < < < 19 < < < < < < < < < < < < 1 < < < < < < < < < 18 < < < < < < < < < < < < < < < 1 < < < < < < < < < < < < 19 < < < < < < < < 1 < < < < < < < < < indicates for values lower than 1 D-VAV001E-1 Subject to technical changes 10

11 Case Radiated Noise VBS-B Example Given: VBS-A Size V = 139 to 470 l/s or to 192 m 3 /h Pst = Pa Specified room sound pressure level L 4 assuming 8 db/oct room attenuation Required: Case radiated noise L in room at 470 l/s or 192 m 3 /h Result: L = 43 specification is met able 9: Case Radiated Noise VBS-B Size l/s V m 3 / h p st = Pa 00 L in p st = Pa 00 L in p st = Pa 00 L in p st = Pa 00 L in < < < < < < < < < < < < < < < < < < < 1 < < < < < 1 < < < < < 1 < < < < < < < < < < < < 1 < < < 18 < < < < < < < < < < < < < < < < < < < < < < < 18 < D-VAV001E-1 Subject to technical changes < < < < < < < indicates for values lower than 1 11

12 Reheat Coil Selection 1 Mean Water pressure drop for sizes to 400 calculation Calculation of water pressure drop wo- or four row reheat coil m w K 0,1 kg/s 0,0 0,04 0,02 V x t m w = in kg/s t w x 3 x10 3 V in l/s With 1 circuit With circuits >1 m w m wk = in kg/s K Number of circuits K Size 2RR 4RR , kpa 40 p v 2 Selection diagram V m 3 / h 000 Number of rows l/s RR 4RR m/s v Size t wm in C t in K t e 70 Q t = in K Vx12x10-3 QinkW V in l/s D-VAV001E-1 Subject to technical changes 12

13 Order Details Specification ext VAV terminal box for supply air on variable volume systems Box consists of casing with control damper, with closed blade leakage rate to DIN 194 Part 4, averaging differential pressure grid and factory fitted and wired control components Each VAV box is tested and the volume flowrates set in the factory Minimum and maximum volume flowrate settings can be measured and adjusted on site Case leakage flow to Class II, VDI 3803 or DIN V , Part 2 Differential pressure range to 1 Pa Volume flowrate range approx 10:1, depending on the type of control VAV DDC Controls: Variable volume flowrate control, electronic velocity controller Actual velocity signal can be measured, differential pressure measured dynamically Electrical supply: 24 VAC Room temperature control by Cascade control Network communication for either Lonalk or Belimo's MP- Bus protocol are available Materials: Galvanised sheet steel casing, sheet steel damper with PE elastomer seal, aluminium sensor tubes, polyurethane plain bearings Order Code / / / / VBS- A LON l/s ype VAV unit with volume flow controller VBS VAV unit only QVS Construction Short case A Long case B Air heater 2 row water reheat coil 2 4 row water reheat coil 4 electric reheat Exx (enter the capacity after E kw) (Leave blank if no reheat) Matching flange None (Basic construction) 00 Slide on flange L3 Lip seal D1 Outlet spigot S1 Lip seal and slide on flange K Lip seal and outlet spigot K Size Network Communication (for VBS only) LON: Lonalk Protocol default configuration: LMV-D2LON If other type required,specified type must be entered MP: Volume flow range State units when ordering Belimo MP bus Protocol default configuration: LMV-D2-MP If other type required,specified type must be entered D-VAV001E-1 Subject to technical changes Order Example ype: VBS - A - 2 / 10 / 00 / LON / l/s Note: if the controller type without network function required,specified type must be entered 13

14 VAV-Compact Convenient solutions A pressure sensor, digital VAV controller and damper Convenient actuator all insolutions one, providingvav-compact a VAV-Compact solution with a communications capability for pressure-independent VAV and CAV systems in the comfort zone Control function: VAV-CAV / Open-Loop Control: DC 210 V / 010 V / MP-bus Integration into DDC controller with MP interface LonWorks systems EIB-Konnex systems Fan Optimiser systems With additional connection facility for sensors or switches Service button and LEDs for servicing and commissioning Diagnostic socket for operating devices NMV-D2-MP LMV-D2-MP Brief description Overview of types Application Pressure measurement Actuator Control function VAV variable air volume CAV constant air volume Bus function est function / test display Operating and service devices Assembly and connection OEM factory settings he digital VAV-Compact has PI control characteristics and is used for pressure-independent control of VAV units in the comfort zone Maintenance-free, dynamic, differential pressure sensor technology, proven in a wide range of applications, suitable for use in offices, hospital wards, alpine hotels or cruise liners wo versions available, depending on the size of the VAV unit: / 10 Nm Rotary actuator, depending on size VAV-CAV or open-loop operation (actuator/volumetric flow sensor) for integration in an external VAV control circuitfeedback of damper position for fan optimisation For variable air volume applications based on a modulating reference variable, eg supplied by a room temperature controller or a DDC or bus system It facilitates demand-related, power-saving ventilation in individual rooms or in zones of air conditioning systems he Vmin Vmax working range can be subdivided by selecting a mode he following operating modes are available: DC 210 V / 010 V / adjustable / bus For constant air volume applications, eg in step mode, controlled by means of a switch he following operating modes are available: CLOSE / Vmin / Vmid / Vmax / OPEN Up to eight Belimo MP devices (VAV / damper actuator / valve actuator) can be connected together over the MP-Bus and integrated into the following systems: LonWorks applications with Belimo UK24LON interface EIB Konnex applications with Belimo UK24EIB interface DDC controller with integrated MP-Bus protocol * Fan optimiser applications with optimisation COU24-A-MP A sensor (010 V or passive, eg a temperature sensor) or a switch can optionally be integrated into the higher-level DDC or bus system via the MP-Bus he VAV-Compact features an LED with a ready display for commissioning and functional checking as well as a service mode with air shortage,excess air and setpoint = actual value display with LEDs Belimo PC-ool,remote control or ZEV, plugged into the VAV-Compact Via MP-Bus he VAV-Compact, which is assembled on the unit by the OEM, is connected using the prefabricated connecting cable he VAV-Compact is mounted on the VAV unit by the unit manufacturer, who adjusts and tests it according to the application he VAV-Compact is sold exclusively via the OEM channel for this reason ype orque Power consumption For wire sizing Weight LMV-D2-MP Nm 3 W VA (max A@ ms) approx g NMV-D2-MP 10 Nm 3 W VA (max A@ ms) approx 700 g LMV-D2LON Nm NMV-D2LON 10 Nm D-VAV001E-1 Subject to technical changes 14

15 Convenient solutions VAV-Compact D-VAV001E-1 Subject to technical changes echnical data Supply Nominal voltage Power supply range Differential pressure sensor Operating pressure Characterising Installation position Operating medium (see «Materials») Materials Measuring air conditions Control function VAV and CAV applications Operating volumetric flow V nom V max V min V mid Classic control Mode for reference value input w (connection 3) Mode for actual volumetric flow signal U (connection ) AC 24 V, 0/0 Hz Convenient DC 24 V solutions AC V DC V Pa (OEM-specific) max Pa OEM-specific Differential pressure sensor Linearisation Any, no reset necessary Supply and exhaust air in the comfort zone and in applications with sensor-compatible media PC ABS to UL94-V0; stainless steel, DIN X10CrNiS1810; PP Santoprene 0 0 C / 9% rh, non-condensing VAV-CAV Open-loop operation Supply/exhaust air units in stand-alone operation / master-slave / parallel connection for rooms with positive/negative pressure or neutral air pressure Mixing units OEM-specific nominal volumetric flow setting, matches VAV box 30 % of V nom 0 % of V nom (see page «Minimum setting limit») 0 % of (Vmin V max) DC210V/(4mAwith resistance) DC010V/(0mAwith resistance) Adjustable DC 0 10 DC 2 10 V DC 0 10 V Adjustable DC 0 10 V Input resistance min kohm max 0 ma Operating modes for constant air volume CLOSE / Vmin /Vmid */Vmax / OPEN * (* only with AC 24 V supply) MP-Bus function Address in bus operation MP 1 8 (classic control: PP) LonWorks / EIB-Konnex With BELIMO UK24LON / UK24EIB interface, 1 8 BELIMO MP devices (VAV / damper actuator / valve actuator) DDC controller DDC controller / PLC, from various manufacturers, with integrated MP interface Fan optimiser With BELIMO optimiser COU24-A-MP Sensor integration Passive (Pt, Ni etc) and active sensors (010 V) eg temperature, humidity 2-point signal (switching capacity 1 24 V), eg switches, occupancy switches Operation and servicing Pluggable / PC-ool (V31 or higher) / ZEV hand-operated device Communication PP/MP-Bus, max DC 1 V, 10 baud Button Adaptation / addressing / service function LED indicator 24 V feed Status / service / bus function Actuator Brushless, non-blocking actuator with current reduction Direction of rotation ccw / cw or / Adaptation Setting range recording and resolution to control range Manual disengagement Pushbutton, self-resetting without affecting functions Actuator full-rotation Angle of rotation 9, with adjustable mechanical or electronic limiting Position indication Mechanical with pointer Spindle driver Clamp, for round spindles 10 mm / square spindles 8 1 mm Positive fit, wide range of versions, eg 8x8mm Connection Cable, 4 x 07 mm 2, terminals Safety Protection class III Safety extra-low voltage Degree of protection IP 4 EMC CE according to 89/33/EEC Mode of operation ype 1 (to EN ) } } 1

16 VAV-Compact Convenient solutions echnical data (continued) Safety Rated impulse voltage 0 kv (to EN ) Control pollution degree 2 (to EN ) Ambient conditions 0 0 C Non-operating temperature 80 C Ambient humidity range 9% rh, non-condensating (to EN ) Maintenance Maintenance-free Connection Connecting cable he connection is established via the connection cable installed on the VAV Compact device Note! No Designation Wire colour Function Supply via safety isolation transformer! 1 BKCOM black Connections 1, 2 (AC/DC 24 V) and (MP signal) Supply AC/DC 24 V 2 RD~ red ~ } must be routed to accessible terminals (room temperature controller, floor distributor, control 3 WH Y white Reference signal VAV / CAV cabinet,etc), in order to simplify access with the Actual value signal OG U orange MP-Bus connection PC-ool for diagnostic and service work VAV Variable operation Vmin Vmax Wiring diagrams Example 1: VAV with analogue reference signal ~ AC 24 V DC 24 V Example 2: VAV with shut-off (CLOSE), 210 V mode ~ AC 24 V DC 24 V Reference signal VAV 010V/210V CLOSED VAV Reference signal VAV 2 10 V Switch-over CLOSED / VAV operation MP / Actual value signal 010V/210V MP / Actual value signal 010V/210V ~ Y U MV-D2-MP PC-ool ~ Y U MV-D2-MP PC-ool Example 3: Example 4: VAV parallel operation with analogue VAV master-slave operation with analogue reference signal Supply/exhaust air reference signal ~ AC 24 V DC 24 V ~ AC 24 V DC 24 V Reference signal VAV 010V/210V Reference signal VAV 2 10 V MP / Actual value signal 010 V / 210 V MP / Actual value signal 010 V / 210 V ~ ~ Y Y U U MV-D2-MP MP / Actual value signal 010 V / 210 V MV-D2-MP SUPPLY PC-ool EXHAUS PC-ool ~ ~ Y Y U U MV-D2-MP Reference signal Slave MP / Actual value signal 010 V / 210 V MV-D2-MP Master PC-ool Slave PC-ool D-VAV001E-1 Subject to technical changes 1

17 Convenient solutions VAV-Compact CAV Step mode CLOSED / V min /V mid /V max / OPEN CAV control wo options are available for CAV control: Standard: CLOSED V min V max OPEN (default setting) NMV-D2M-compatible CLOSED V min V mid V max OPEN he setting can be changed with the PC-ool from Version V31 Wiring diagrams ~ AC 24 V DC 24 V *) * Not available with DC 24 V supply VAV reference signal Note he contacts are mutually interlocking! a b c d e MP / actual value signal 010 V / 210 V ~ Y U MV-D2-MP PC-ool CAV function: Standard Mode setting Signal 010 V 010 V 010 V 010 V 2 10 V 210 V 210 V 210 V 210 V 010 V ~ ~ ~ 210 V --- Function Damper CLOSED a) CLOSED c) CLOSED * V min Vmax b) VAV CAV V min All open V min active Damper OPEN e) OPEN * CAV V max d) V max Example: CAV application: CLOSED V min V max (210 V mode) ~ AC 24 V DC 24 V a d Damper closed C AV step V n mi C AV step ma x V MP / actual value signal Setting CAV function: Standard (Default) Legend Contact closed, function active Contact closed, function active, only in 2 10 V mode Contact open * Not available with DC 24 V supply ~ Y U MV-D2-MP PC-ool Note You must set the CAV function to NMV- D2M-compatible in order to use the CAV Vmid step CAV function: NMV-D2M-compatible Mode setting Signal 010 V 010 V 010 V 010 V 2 10 V 210 V 210 V 210 V 210 V 010 V ~ ~ ~ 210 V --- Function Example: CAV application V min V mid V max (010 or 210 V mode) ~ AC 24 V c d C AV step V n mi C AV step V d mi C AV step V ma x D-VAV001E-1 Subject to technical changes Note Supply via safety isolation transformer!! Connections 1, 2 (AC/DC 24 V) and (MP signal) must be routed to accessible terminals (room temperature controller, floor distributor, control cabinet,etc), in order to simplify access with the PC-ool for diagnostic and service work Damper CLOSED a) CLOSED V min Vmax b) VAV CAV V min All open V min active Damper OPEN e) OPEN * CAV V max d) V max CAV V mid c) V mid * Legend Contact closed, function active Contact closed, function active, only in 2 10 V mode Contact open * Not available with DC 24 V supply ~ Y U MP / actual value signal Setting CAV function: NMV-D2M-compatible MV-D2-MP PC-ool 17

18 VAV-Compact Convenient solutions MP-Bus operation VAV- / CAV operation Connecting cable Note! Supply via safety isolation transformer! Connections 1, 2 (AC/DC 24 V) and (MP signal) must be routed to accessible terminals (room temperature controller, floor distributor, control cabinet,etc), in order to simplify access with the PC-ool for diagnostic and service work he connection to the MP-Bus is established via the connection cable installed in the VAV-Compact device No Designation Wire colour Function 1 BKCOM black Supply AC/DC 24 V 2 RD~ red ~ } Input for 3 WH Y white Sensor linking Override control OG U orange MP-Bus connection Wiring diagrams Bus operation VAV function For detailed information, see section «MP-Bus integration» Bus operation VAV function with integrated switch For detailed information on sensor integration, see section «MP-Bus integration» AC 24 V DC 24 V ~ MP AC 24 V DC 24 V ~ MP Note For further information about the connection, override controls, MP-Bus cables, etc, see section «MP-Bus integration» his is a connection description Depending on the application, the terminal allocation may vary he connection and commissioning must be carried out by trained personnel ~ Y U MP address: 1 8 MV-D2-MP PC-ool zb Fensterkontakt ~ Y U MP address: 1 8 MV-D2-MP PC-ool Sizing of feed and connection cables General 24 V feed, sizing and wiring MP-Bus integration supply, Sizing and wiring In addition to the actual wire sizing, attention must also be paid to the surrounding area and the cable routing Signal cables must not be laid in the vicinity of load cables, objects liable to cause EMC interference etc if possible Paired or layer stranded cables improve immunity to interference he wire sizing and installation of the AC 24 V supply,the fuse protection, and the cables are dependent on the total operated load and local regulationsaccount must be taken of the following performance data, including starting currents of the actuators: Sizing values VAV-Compact controller, see echn Data Sizing values of further controlling elements etc can be found in the current data sheets and product information other devices which are intended to be connected to the same 24 V feed Reserve capacity for subsequent expansion, if planned See MP-Bus integration, page xy D-VAV001E-1 Subject to technical changes 18

19 Convenient solutions VAV-Compact ool connection Setting and diagnostics On-board service connection For setting and the diagnostics of the connected VAV-Compact controller, this can thanks to the MP-Bus technology quickly and easily be checked and set with the Belimo PC- ool or the ZEV hand-operated device he service connection integrated in the VAV-Compact allows the used console to be connected quickly Belimo VAV operating and service devices ZEV hand-operated device with integrated level converter Belimo PC-ool, with level converter ZIP-232-KA PC-ool ZK1-GEN ZIP-232-KA Note In principle, it is possible to use the ZEV setting device For limitations, see «Compatibility» page XX Feed via ZIP-RS232 MP connection () Belimo VAV operating and service devices ZEV hand-operated device with integrated level converter Belimo PC-ool, with level converter ZIP-232-KA or ZIP-RS232 he VAV-Compact can also communicate (connection wire ) with the available service tools via the MP connection he connection can be established during operation on site, ie in the connection socket, at the tool socket of the Belimo room temperature controller CR24 or on the floor or control cabinet terminals If needed, the VAV-Compact can be fed via the 24 V of the level converter ZIP-RS232 Connection in running system 230V ZN V PC-ool ZIP-RS232 ON U PP OFF 1 2 RS232 ZIP-232-KA 24 V Y ZK2-GEN U D-VAV001E-1 Subject to technical changes 19

20 VAV-Compact Convenient solutions Dimensions [mm] Dimensional drawings LMV-D2-MP Dimensional drawings NMV-D2-MP 124 D-VAV001E-1 Subject to technical changes

21 System description COU24-A-MP System principle he volumetric fow and its transport are the most determining factors for the energy consumption of the fans FC Frequency converter MP 1 CAV Room occupancy In the case of conventional, pressurecontrolled systems, the supply pressure is selected to provide enough air to the most unfavourably placed VAV unit during full load operation he remaining oversupplied units have to eliminate the excess energy, ie the overpressure, by closing the dampers hese units are often operated in the most unfavourable range in respect to control characteristics, noise and pressure loss he greatest energy loss occurs at partial load, which is often the largest part of the operating time of a VAV system Fan optimiser Cooling demand Volumetric flow Damper position MP 2 VAV Room controller Fan optimisation: Nominal volume (space requirement), actual volume and damper position are recorded via MP-Bus, analysed by the optimiser and specified as a setpoint for the frequency converter Result: he system is operated in the optimum range for energy consumption, noise and control characteristics he greatest potential energy savings are found in partial-load operation, a considerable share of the time for a VAV unit VAV Room controller Fields of application Function Variable and constant volumetric fow systems in the room ventilation field with fans that are controlled by a frequency converter he system is operated by the fan optimiser according to the current demand signals with optimum damper positions he objective is to keep the pressure loss through the VAV units as low as possible his permanently reduces operating costs by decreasing the fan output he damper positions of each VAV unit are recorded, transferred via the MP-Bus to the fan optimiser and used there as a control variable to regulate the fan controlled by the frequency converter As a result of this technology based on the Belimo MP-Bus up to fifty percent energy savings can be achieved compared to conventional systems with fans controlled by air-duct pressure D-VAV001E-1 Subject to technical changes Proportionality laws he proportionality laws form the basis of the volumetric fow transport he volumetric flow is V 1 proportional to the speed = n 1 Pressure increases change to the second power with the volumetric flow ratio he power consumption changes to the third power with the volumetric flow ratio V 2 p 1 p 2 P 1 P 2 = = n 2 V 1 V 2 V 1 V 2 2 = n 2 1 n 2 3 = n 3 1 n 2 Damper diagrams Pressure-controlled system Fan-optimiced system Damper opening [% 40 0 Damper opening [% 40 0 Operating state optimum range unfavourable range (in respect to energy efficiency and control characteristics) Operating state optimum range unfavourable range (in respect to energy efficiency and control characteristics) 21

22 COU24-A-MP System description Customer benefit he fan optimisation is an effective measure with regard to the EU directive 02/91/EC on the overall efficiency of buildings and the implementation measures derived for this, eg: DE: DIN V 1899 a permanent measure for reducing operating costs A quick Amortisation he massive potential energy savings guarantee that the costs of the fan optimisation solution are quickly amortised Energy savings up to fifty per cent lower energy consumption of fans due to reduced drop in pressure through the downstream VAV units System descriptioncou24-a-mp Lower costs supply air and exhaust air pressure controls are eliminated Cutting installation work Standard cables for three-pole MP-Bus Easier commissioning since pressure controls do not have to be commissioned System convenience thanks to lower flow noise he flow noise through the units and in the air duct system is reduced by the lower supply pressure Increased operational reliability pressure losses due to filter contamination are automatically compensated for Complaints such as the system does not supply enough air are a thing of the past Optimum cost-benefit ratio the investment pays even with small and medium-sized buildings Flexible system designs for example as: - CAV system: volume changeover Vmin / Vmax through motion detector - VAV system: demand-controlled via room temperature controller CR24-B1 - VAV system: demand-controlled via DDC system controller - mixed VAV/CAV system Can be used for new systems, retrofitting for system optimisations and renovation of existing systems all VAV-Compacts (LMV-D2M / NMV-D2M from 01 and later) support the optimiser function! Simple engineering and efficient commissioning thanks to preconfiguration, LCD display and self-adaptive control behaviour Interfaces Control VAV controllers Frequency converter he energy requirements of the single-room/ddc controllers are transferred to the fan optimiser COU24-A-MP via analog signals or MP-Bus As a result of the MP-Bus technology, the VAV controllers provide access to all relevant data such as the current actual volumetric flow, damper position etc Setting and control functions are possible at any time with the Belimo PC-ool he frequency converter is controlled through a 0 10 V analog output In the case of mixed systems with VAV and mechanical CAV units, a minimum fan speed can be set System size Unlimited system size; further fan optimisers can be operated in a sequential circuit via the cascade output of the fan optimiser Number of VAV/CAV units per fan optimiser: 1 to 8 Operation and display All relevant information (total, single, actual volume, damper positions, frequency converter setpoint etc) are shown on the LCD display User-guided setting and display menu with easy operation via encoder button VAV controllers he VAV controllers can be addressed and controlled via the fan optimiser In addition to the actual volumetric flow and damper position display, the operating volumetric flow settings Vmin and Vmax can be displayed and adjusted if necessary Furthermore, the PC-ool (setting, trend recording, logging etc) can be used Connection via central RJ11 connection Notes Fan optimisations with Belimo VAV-Compact controllers can as a result of their MP functions also be realised in control devices with an integrated MP-Bus interface In this case, the optimisation function must be realised in the application software of the control device Alternatively, the fan optimiser COU24-A-MP can be integrated in such control solutions, which relieves the controller Control devices with integrated MP interface are available on the market from various DDC / PLC manufacturers Please contact your local BELIMO representative for more information D-VAV001E-1 Subject to technical changes 22

23 System description COU24-A-MP Device equipment Frequency converter FC Fan Fan optimiser MP-Bus MP DDC controller I/O DDC controller Analog controller Room temperature controller Room controller VAV controller VAV 1 MP-Bus Room controller VAV 8 Room 9 1 Expandable Fan optimisers in cascade circuit Room 17 VAV controllers Belimo VAV Compact, D2M generation LMV-D2M NMV-D2M Belimo VAV Compact, new generation Belimo VAV Universal LMV-D2-MP NMV-D2-MP VRP-M NM24A-V-S VFP Room temperature controllers Belimo CR24-B1, -B2, -B3, according to the application hird-party controller for VAV control with 0 10 V/2 10 V output DDC controller with MP-Bus interface D-VAV001E-1 Subject to technical changes Fan optimiser Frequency converter Belimo Fan optimiser COU24-A-MP Standard model with 0 10 V control 23

24 D-VAV001E-1 Subject to technical changes