Vents VUT 1000 WH User Manual Download Page 1

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VUT 800 WH VUT 1000 WH

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HEAT RECOVERY AIR HANDLING UNIT

USER’S MANUAL

Summary of Contents for VUT 1000 WH

Page 1: ...VUT 800 WH VUT 1000 WH VUT 1500 WH VUT 2000 WH HEAT RECOVERY AIR HANDLING UNIT USER S MANUAL ...

Page 2: ...d operating logic 12 Mounting and set up 13 Condensate drainage 16 Functional diagram 17 Connection to power mains 18 Unit control 19 Maintenance 19 Fault handling 20 Storage and transportation rules 20 Manufacturer s warranty 21 Acceptance certificate 22 Seller information 22 Connection certificate 22 Warranty card 23 ...

Page 3: ... panel user s manual must be turned over to the receiving operator Symbol legend used in the manual WARNING DO NOT UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS The unit must be disconnected from power supply prior to any installation or repair operation The unit must be grounded The unit must not be operated outside the temperature range stated in the user s manual and in aggressive or explosive...

Page 4: ...cts away of the unit OFF ON Disconnect the unit from power supply prior to maintenance Do not let children operate the unit Do not damage the power cable while operating the unit Do not put any objects on the power cable Do not sit on the unit and do not put any objects on it Do not open the operating unit In case of unusual sounds odours or smoke disconnect the unit from power supply and contact ...

Page 5: ... air must not contain any flammable or explosive mixtures evaporation of chemicals sticky substances fibrous materials coarse dust soot and oil particles or environments favourable for the formation of hazardous substances toxic substances dust pathogenic germs Relative humidity of transported air must not exceed 80 at an ambient temperature of 20 C THE UNIT IS NOT INTENDED TO BE USED BY CHILDREN ...

Page 6: ...ture ranging from 1 C up to 40 C and relative humidity up to 80 In order to prevent condensation on the internal walls of the units it is necessary that the surface temperature of the casing is 2 3 C higher than the dew point temperature of the transported air Hazardous parts access and water ingress protection rating IP44 for the unit motors IP22 for the assembled unit connected to the air ducts ...

Page 7: ...3 5 kW Water flow Prolong the line down to water flow axis at the bottom of the graphic 0 14 l s Water pressure drop Draw the line from the point where line crosses the black curve to the pressure drop axis 1 5 kPa Air temperature at outlet from the heater C Air speed inside the heater m s Water flow through the water heating coils l s Water pressure drop kPa Air flow through the heater m3 h Coil ...

Page 8: ... Air flow through the heater m3 h Coil heating capacity kW External air temperature C VUT 800 WH 4 Performance chart for the VUT 1000 WH 2 water heater parameters is shown in Fig 4 Fig 4 Calculation of the VUT 1000 WH 2 water heater parameters Water heater parameters calculation example Air Speed Starting from 950 m3 h on the air flow scale draw a vertical line till the air speed axis which makes ...

Page 9: ...a Air flow through the heater m3 h Coil heating capacity kW External air temperature C VUT 1000 WH 4 Performance chart for the VUT 1500 WH 2 water heater parameters is shown in Fig 6 Fig 6 Calculation of the VUT 1500 WH 2 water heater parameters Water heater parameters calculation example Air Speed Starting from 2000 m3 h on the air flow scale draw a vertical line till the air speed axis which mak...

Page 10: ...Pa Air flow through the heater m3 h Coil heating capacity kW External air temperature C VUT 1500 WH 4 Performance chart for the VUT 2000 WH 2 water heater parameters is shown in Fig 8 Fig 8 Calculation of the VUT 2000 WH 2 water heater parameters Water heater parameters calculation example Air Speed Starting from 2000 m3 h on the air flow scale draw a vertical line till the air speed axis which ma...

Page 11: ...re axis on top of the graphic 31 C Heating coil capacity Prolong the line up to the point where it crosses the outside air temperature ascending curve e g 15 C and draw a horizontal line from this point to the right until it crosses water in out temperature curve e g 70 50 from here draw a vertical line up to the scale representing the heating coil capacity 35 kW Water flow Prolong the line down t...

Page 12: ...insulated mineral wool layer The air handling unit is equipped with quick detachable service panels for scheduled repair and maintenance operations The panels are specially sealed There is a control unit on the top panel of the unit where the terminal box is located The cables must be routed to the terminal box through the cable lead ins The wiring diagram for connection of the unit to power mains...

Page 13: ...ng the unit provide enough access for unit servicing and maintenance The minimum distances from the unit to the mounting planes is shown in Fig 12 Fig 11 Unit mounting Washer Nut Vibration damping rubber Nut and lock nut Example Unit mounting on a horizontal plane Fig 12 Minimum mounting distances A min 600 mm for VUT 800 1000 WH A min 820 mm VUT 1500 2000 WH A ...

Page 14: ... to the spiral seam duct is supposed to be the source of the abnormal noise install a flexible air duct instead of the spiral seam one The precautions referred above are normally sufficient to solve the resonance problem For the better effect you may use anti vibration connectors To ensure the best performance of the unit provide a straight 1 m duct section on both sides of the unit while mounting...

Page 15: ...ater is shown in Fig 14 Fig 14 Mixing unit diagram M 1 2 2 3 5 6 Mixing unit diagram 1 Water heater 2 Shutoff valves 3 Circulation pump 4 Bypass damper 5 Boiler 6 Heat medium regulating valve 7 Non return valve 8 Coarse filter Heat medium regulating valve actuator 4 7 8 ...

Page 16: ...at the water drainage is correct Wrong connection to sewage system may result in condensate accumulation inside the unit The condensate drainage system is designed for operation at the ambient temperature above 0 C If the ambient temperature is below 0 C the condensate drainage system must be heat insulated and pre heated Fig 15 Condensate drainage dain pipe U trap sewage system pipe pipe connecti...

Page 17: ... Heat exchanger damper actuator M3 Circulation pump SM4 Heat medium regulating valve actuator F1 Supply filter TE1 Intake air temperature sensor F2 Extract filter TE2 Temperature sensor at downstream of the heat exchanger D1 Supply air damper TE3 Return heat medium temperature sensor D2 Extract air damper TE4 Waterheaterfreezeprotectionsensor Q1 Water heater TE5 Supply air temperature sensor Q2 Co...

Page 18: ...agnetic circuit breaker integrated into the fixed wiring system The trip current should be not lower than the current consumption ref Table 2 Fig 17 External wiring diagram for VUT 800 1000 WH L L 1 L 2 N 3 PE 4 PE 5 N 6 L 7 1 8 2 9 c 10 no 11 nc 12 c 13 no 14 1 15 2 16 3 17 6 18 5 19 1 20 9 21 2 22 3 23 4 24 7 25 1 26 2 27 1 28 2 29 1 30 1 31 2 32 1 33 3 34 2 35 1 N N PE PE Power 230 V AC 2 1 t C...

Page 19: ...y air flow control twice per year Leaves and other pollutions can clog the supply air grille and reduce the unit performance and supply air volume Check the supply grille twice per year and clean it as required 6 Ductwork system inspection once in 5 years Even if you follow all the listed maintenance guidelines some dust can get accumulated inside the air ducts and reduce the unit performance Duct...

Page 20: ...ezing Turn the unit off if required and restart it after the freezing danger is no longer imminent Malfunction of the water heater Contact the service centre High noise vibration The impeller s is clogged Clean the impeller s Loose screw tightening Tighten the screws No anti vibration mounts Install the rubber anti vibration mounts not included into delivery set Water leakage The drainage system i...

Page 21: ... details stated on the unit packing and in the user s manual user s failure to ensure timely technical maintenance of the unit external damage to the casing excluding external modifications of the unit as required for its installation and the internal components of the unit alteration of the unit design or engineering changes of the unit replacement and use of the unit assemblies parts and compone...

Page 22: ...nd accepted Customer s signature Seller s seal CONNECTION CERTIFICATE VUT___WHheatrecoveryairhandlingunithasbeenconnectedtopowermainspursuanttotherequirements stated in the present user s manual Company name Address Phone number Installation technician s full name Installation date Signature This is to certify that the works specific to the unit installation has been performed in accordance with a...

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Page 24: ...V45 1EN 08 ...

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