KSAb

Transcription

1 Electronic slave and constant flow regulator for air flow regulation FUNCTION KSA is an electronic slave controller for air-flow regulation with LONTALK communications. KSA can also be used as a slave controller for exhaust air in the erimix system. KSA can also be used as a constant flow regulator. Pressure class A and damper (circular design) in class 4 air tightness for shutting off. QUICK FACTS Static non-fouling flow measurement Slave control of up to 5 units with air flow as the parameter via LONTALK or analogue (1 master) Also available with temperature measurement of the exhaust air for erimix system Also available in an insulated design LONMARK -approved Available in sizes Ø to Ø0 and most rectangular duct sizes up to 00 x mm Enclosure class IP QUICK GUIDE F L O W R A N G E l/s Size Min Nom Max A flow tolerance of ±% applies for the minimum air flow. Registered design. The company reserves the right to make design changes without prior notice. Swegon e.r.i.c. 03 1

2 DESIGN KSA is available as standard in a circular design for sizes - 0. A rectangular model is built onto a flap damper and can be provided on most markets in sizes up to 00 mm x mm. The circular model is also available in an insulated design to fit silencer CLA/CLB, see figure 1. Circular sizes have a shutoff damper for class 4 air tightness, rectangular in class 3 air tightness, enclosure class conforming to IP. KSA is supplied as standard completely assembled and configured for its intended purpose as a slave controller or constant flow regulator. KSA has integrated summation of the air flow rate up to 5 master units, only applies with digital transfer of the air flow rate. KSA is supplied with an integrated temperature sensor when used in the erimix system with exhaust air temperature control of the supply air. Figure 1. KSA insulated design and sound attenuator CLA/ CLB. MATERIALS AND SURFACE TREATMENT All sheet metal parts are in galvanized sheet steel. All plastic parts are completely PVC free and are generally made of ABSplastic. ACCESSORIES Operator panel KOP for reading data. Mounting sleeve FSR to aid dismantling when cleaning the duct system. INSTALLATION KSA can be installed in any position in climate-conditioned areas. The pressure sensor position should be arranged so that its diaphragm is always in the vertical position when installed horizontally; this is done by loosening the pressure sensor s securing screws and changing the position, see figure 3. KSA is connected to the duct system using the mounting sleeve FSR on ducts that must be cleaned. KSA should always be installed with straight sections. Electrical connection is carried out as per the wiring diagram KSA. Figure 2. KSA for rectangular ducts. COMMISSIONING KSA is configured at the factory and receives all data for air flow via the network (alternatively analogue) from the master unit (KZM or KRF). MAINTENANCE Dirty products may be cleaned by wiping or vacuum cleaning only. DECLARATIONS The product is CE marked. CE declaration and Environmental Product Declaration are available from our website. Standard: Conforms to LONMARK Interoperability Guidelines and LONMARK Functional Profile: VAV Controller. Figure 3. KSA installation position and changing the flow sensor position. 2 Swegon e.r.i.c. 03

3 PLANNING A comprehensive planning guide that describes the overall e.r.i.c. concept is given in the technical section. KSA (1) is a slave controller for flow regulation in branch ducts. Also see KZM (2) or KRF (2) which act as the master unit to KSA. The transfer of the air flow rate from the master unit can take place either via LONTALK or analogue via the flow sensor on the master unit. The slave flow deviations are programmed on the master unit with digital transfer, while with analogue transfer it occurs on the slave controller. Using digital transfer of the slave flow up to 5 master units can be bound to the slave unit, which adds all the sub-flows and regulates against the total flow. KSA can also be used as a constant flow regulator, freestanding or connected to a LON-net, which provides the ability to monitor and change data. Figure 4. Slave regulation of the air flow. 1. Slave flow unit KSA. 2. Master unit KZM or KRF. Figure 5. Installation area requirements Figure 6. Installation. Swegon e.r.i.c. 03 3

4 CONNECTION KSA is connected to a supply voltage of 24 V AC and LONTALK as set out in the wiring diagram. Wire cross-section requirements Supply voltage (24 V AC) with max fuse 6 A requires 1.5 mm 2. Signal wiring from connected units max m requires 0.7 mm 2. Connection to LONTALK TP/FT- Free Topology Channel should be made using twisted pair cable. Legend to the Wiring diagram Components within the dotted area are permanently installed and connected. Dashed lines indicate factory connected components. 1. Flow regulator KSA 2. Regulator KCP 3. Connecting the operator panel KOP 4. Damper motor 5. Flow sensor 6. Analogue flow signal 2- V from master Electrical data Input voltage 24 V AC -% +%, - Hz Operation of KOP connected via the > 23 V AC controller requires Power consumption: KSA with operator panel KOP 8 VA Digital outputs max. 12 VA In total max. 16 VA Ambient temperature: Operation 0 C + C Storage C + C Humidity max. 90% RH, non condensing Enclosure: Material ABS/PC-plastic Enclosure class IP Inputs for Z2 from master Measurement range 2- V DC Accuracy ±0,05 V Output for Y2: Output voltage range 0- V DC Maximum amperage 2 ma Accuracy ±0,2 V Network protocol LONTALK Channel TP/FT-, 78 kbps Neuron type 31, MHz Figure 7. Wiring diagram. 4 Swegon e.r.i.c. 03

5 TECHNICAL DATA Air flow capacity The product s air flow capacity is important in planning when air flow measurement is included in the product, see diagram. The normal working velocity range lies between m/s in the duct. The upper control limit lies at approx. 13 m/s, but then gives significantly increased pressure losses and sound problems. Swegon e.r.i.c. 03 5

6 Sound power level The diagram for the different sizes shows the total sound power (L Wtot db), as a function of the air flow and pressure drop across the damper. By correcting L Wtot with the correction factors from Table 1 the sound power levels are obtained for respective octave bands (L W = L Wtot + KOK). Table 1 Correction factor K OK for KSA Size Mid-frequency (Octave band) Hz Table 3 Integral attenuation for KSA with sound attenuator CLA length 0 mm size -125 and 0 mm and for size 1-0. For size 0 the straight section 2 x ØD applies between KSA and CLB. Size Mid-frequency (Octave band) Hz Transmitted sound The sound transmitted from KSA is calculated according to the formula: L Wout = L Wduct + K trans Data refers to non-insulated KSA and is related to the duct length that KSA makes up. Table 2 Correction factor K OK for KSA with sound attenuator CLA length 0 mm size -125 and 0 mm and for size 1-0. For size 0 the straight section 2 x ØD applies between KSA and CLB. Size Mid-frequency (Octave band) Hz Table 4 Correction factor K trans refers to non-insulated KSA Size Mid-frequency (Octave band) Hz Swegon e.r.i.c. 03

7 Engineering graphs - KSA - Duct installation Air flow - Pressure drop - Sound level Data applies to sound generation in the duct. Minimum flow according to the air flow capacity diagram should be observed. Documented sound levels L Wtot,,, 65 and 70 db for the illustrated lines in the diagram Wtot l/s l/s 0 m 3 /h m 3 /h l/s 0 l/s m 3 /h m 3 /h l/s l/s m 3 /h m 3 /h Swegon e.r.i.c. 03 7

8 Engineering graphs - KSA - Duct installation Air flow - Pressure drop - Sound level Data applies to sound generation in the duct. Minimum flow according to the air flow capacity diagram should be observed. Documented sound levels L Wtot,,, 65 and 70 db for the illustrated lines in the diagram l/s m 3 /h l/s m 3 /h Engineering graphs - KSA - Duct installation Air flow - Pressure drop - Sound level Data applies to sound generation in duct with sound attenuator CLA/CLB. Minimum flow according to the air flow capacity diagram should be observed. Documented sound levels L Wtot,,, 65 and 70 db for the illustrated lines in the diagram. + CLAc CLAc l/s l/s 0 m 3 /h m 3 /h 8 Swegon e.r.i.c. 03

9 Engineering graphs - KSA - Duct installation Air flow - Pressure drop - Sound level Data applies to sound generation in duct with sound attenuator CLA/CLB. Minimum flow according to the air flow capacity diagram should be observed. Documented sound levels L Wtot,,, 65 and 70 db for the illustrated lines in the diagram. 1 + CLAc CLAc l/s 0 l/s m 3 /h m 3 /h 2 + CLAc CLAc l/s l/s m 3 /h m 3 /h 0 + CLAc CLBa l/s m 3 /h l/s m 3 /h For size 0 the straight section 2 x ØD applies between KSA and CLB. Swegon e.r.i.c. 03 9

10 TECHNICAL DATA RECTANGULAR DESIGN Engineering graphs Velocity - Pressure drop - Sound level Data applies to sound generation in the duct Minimum flow applies at 1.5 m/s in the duct Calculate the face area velocity across the damper and read off sound data and pressure drop at an appropriate damper position. At % the damper is fully open. Ps 0 0 Pa % % % % 70 70% Sound power level The diagram shows the total sound power (L Wtot db), as a function of the velocity and pressure drop across the damper. By correcting LWtot with the correction factors from Tables 1 and 2 the sound power levels are obtained for respective octave bands (L W = L Wtot + K ok + K k ). Table 1 Correction factor K OK for KSA Size Mid-frequency (Octave band) Hz All Tol. ± % Table 2 Correction factor K K for the damper s face area m 2 90% Area m 2 0,1 0,15 0,25 0,4 0,6 1,0 1,6 2,5 K k % m/s Swegon e.r.i.c. 03

11 Air flow capacity rectangular KSA The product s air flow capacity is important in planning when air flow measurement is included in the product. The normal working velocity range lies between m/s in the duct. The upper control limit lies at approx. 13 m/s, but then gives significantly increased pressure losses and sound problems Size Wx H Area m 2 min q l/s Approx 8 m/s l/s max q l/s Motor Nm 0 x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 1, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 0, x 0 1, x 0 1, x 700 0, x 700 0, x 700 0, Size Wx H Area m 2 min q l/s Approx 8 m/s l/s max q l/s Motor Nm x 700 0, x 700 1, x 700 1, x 700 1, x 800 0, x 800 0, x 800 0, x 800 1, x 800 1, x 800 1, x 800 1, x 900 0, x 900 1, x 900 1, x 900 1, x 900 1, x 900 1, x 0 1, x 0 1, x 0 1, x 0 1, x 0 1, x 0 2, x 1 1, x 1 1, x 1 1, x 1 1, x 1 2, x 1, x 1, x 1, x 2, x 2, Swegon e.r.i.c

12 Lonmark objects and network variables The standard object for KSA with regulator KCP is shown in the figure below. Only a few of these network variables are used for the application handled by KSA. Further information about the use of variables can be found in the commissioning instructions for the e.r.i.c. system and in the Technical Manual. All documents are available for download from our website. The regulator is LONMARK -approved. xif-files are available for download from our website. 12 Swegon e.r.i.c. 03

13 DIMENSIONS AND WEIGHT Non-insulated Dimensions, mm Size D A B Weight,kg , , , , , , , ,2 Insulated Dimensions, mm Size D B H L Weight,kg , , , , , , , ,8 Figure 9. KSA non-insulated design. CLAc / CLBa Dimensions, mm Size B C D H L Weight,kg , , , , , , , ,0 CLA applies to sizes 1-0, CLB applies only to size 0. Figure. KSA insulated design. 1 B H 470 Figure 8. Sound attenuator CLA/CLB. Figure 11. KSA rectangular design with guide joint. Swegon e.r.i.c

14 ORDER KEY Circular design Product designation Flow regulator -aaa -b -c Size:, 125, 1. 0, 2, 315, 0, 0 Design: N = Non-insulated I = Insulated Design: 1 = temperature sensor erimix system 0 = without temperature sensor With constant flow regulation state the air flow in l/s. With analogue transfer state the deviation in l/s or %. Rectangular design Flow regulator -aaa-bbb -c Size: See the flow capacity table State W x H Design: 1 = temperature sensor erimix system 0 = without temperature sensor Accessories Mounting sleeve FSRc -aaa Size:, 125, 1, 0, 2, 315, 0, 0 Sound attenuator CLAc -aaa -bbb Size:, 125, 1, 0, 2, 315, 0 Length: 0, 0 Ordering example Slave flow regulator size 315 and non-insulated design: KSA 315-N-0 Marking: Branch F2 floor 3 Binding (LON): KZM Branch T2 floor 3 1 items SPECIFICATION EXAMPLE Example of the specification text according to VVS AMA. SP XX Swegon slave controller for air flow type which is included in the e.r.i.c. system with the following functions: Closable damper in class 4 air tightness Non-fouling Insulated design Temperature sensor for erimix system Slave control flow with KZM as Master LONTALK -connection LONMARK -approved Accessories: Mounting sleeve FSRc xx items Sound attenuator CLAc aaa-bbb etc. xx items Size: aaa-b-c xx items aaa-b-c xx items etc. State the following: Marking and air flow in areas of application as constant flow regulator. With analogue transfer from the master, state any flow deviation in l/s or %. Sound attenuator CLBa 0- Operator s panel KOPa 14 Swegon e.r.i.c. 03