Related Manuals for Vents VUT 300 WH EC
Summary of Contents for Vents VUT 300 WH EC
- Page 1 USER’S OPERATION MANUAL VUT 300 WH EC VUT 400 WH EC VUT 600 WH EC AIR HANDLING UNIT WITH HEAT RECOVERY...
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Page 2: Table Of Contents
VUT .. WH ЕС CONTENT Introduction Delivery set Structural designation key Technical data Safety requirements Structure and operating logic Mounting and set-up Condensate drainage Connection to power mains Unit control Functional diagram Technical maintenance Fault handling Storage and transportation rules Manufacturer’s warranty Acceptance certificate Electrical connection certificate... -
Page 3: Introduction
INTRODUCTION The present user’s operation manual contains technical description, data sheet, installation and mounting guidelines for the air handling unit with heat recovery VUT WH EC, VENTS series (hereinafter referred as the unit). The unit is designed to save thermal energy by means of heat recovery and is one of the energy saving components used in buildings and premises. -
Page 4: Vut Xxx
VUT .. WH ЕС STRUCTURAL DESIGNATION KEY VUT XXX Motor type EC - electronically commutated motor Spigot orientation H - horizontal Heater type W - water heater Modi cation (spigot Ø) 1 -150 mm, 2 - 160 mm Air capacity [m Unit type VUT - ventilation with energy utilization TECHNICAL DATA... - Page 5 Table 1 VUT 300-1 VUT 300-2 VUT 400 VUT 600 Type WH ЕС WH ЕС WH ЕС WH ЕС Voltage, 50 Hz [V] 1 ~ 230 Max. fan power [W] 2 items x 70 2 items x 70 2 items x175 2 items х 175 Max.
- Page 6 VUT .. WH ЕС VUT 300 WH EC, VUT 400 WH EC Air temperature after heater [°C] Coil heating capacity [kW] Air ow through the heater [m Water ow through the water heating coils [l/s] Water heater parameters calculation example: Supply air temperature.
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Page 7: Safety Requirements
SAFETY REQUIREMENTS While operating and mounting the unit consider the requirements of the present operation manual as well as general requirements of all applicable local and national building and electrical codes and standards. The unit must be grounded! Before connecting the unit to power mains make sure that the unit is free of any visible damages or any other foreign objects inside the casing that can damage the impeller blades. -
Page 8: Structure And Operating Logic
VUT .. WH ЕС STRUCTURE AND OPERATING LOGIC The unit has the following operating logic (fig. 3): Warm stale extract air from the room flows through the air ducts to the unit, is purified in the extract filter and is supplied to the heat exchanger and exhausted outside by exhaust fan. Clean cold air from outside is moved by supply fans to the unit where from it is directed to the supply filter. -
Page 9: Mounting And Set-Up
1. Supply fan; 6. Drain pipe; 12. Data cable; 2. Extract fan; 7. Water heater; 13. Side walls; 3. Plate counter-flow heat 8. Bypass; 14. Quick-detachable panesl. exchanger 9. Remote control panel; 15. Terminal box. 4. Supply filter; 10. Control block casing; 5. - Page 10 VUT .. WH ЕС Mount the unit on a rigid and stable structure. Check the technical parameters and the unit weight. Use bolts to suspend the unit to the ceiling. Make sure that the construction has sufficient load capacity to carry the unit weight. Otherwise reinforce an installation place by beams etc. After that fix the bolts.
- Page 11 To attain the best performance of the unit while mounting provide a straight 1 m duct section on both sides of the unit. If the unit is installed at the air duct inlet or outlet it shall be equipped with a grille with the mesh width up to 12.5 mm or any other protecting device to prevent free access to the unit fans.
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Page 12: Condensate Drainage
VUT .. WH ЕС Сirculation pump operation (not included into delivery set). The circulation pump switches automatically on both in summer or winter mode when the fans are started or at the beginning of the water coils preheating procedure and switches off as the fans stop. -
Page 13: Connection To Power Mains
CONNECTION TO POWER MAINS Connection of the unit to power mains is allowed by a qualified electrician with a work permit for the electric units up to 1000 V after detailed study of the present user’s manual. The rated electrical parameters of the unit are shown on the rating plate. Any internal connection modifications are not allowed and void warranty. -
Page 14: Unit Control
VUT .. WH ЕС Recommended rated current of the circuit breaker is 6.3 A. To connect the unit to power mains route the power and ground cables through the cable screws gland. The mounting place of the automatic circuit breaker must ensure a quick access for alarm switching off if required. - Page 15 Structure and operating logic of automatic control system: Automatic control system has winter and summer operation modes. The mode is selected automatically depending on the outside temperature: if the outside temperature is above the set point (0°C by default) the system operates in summer mode. If the temperature drops below this set point the system automatically switches to winter mode.
- Page 16 VUT .. WH ЕС The air handling unit is equipped with an electronic control block, fig. 11, 12. F1 - thermal fuse F2 - thermal fuse TE3 - return heat medium sensor TR1 - transformer 230 VAC / 24 VAC X1 - terminal box for external connections Z1 - digital controller TS1 - freezing protection thermostat...
- Page 17 The controller has the following controls and indicators: Indicator; Buttons; LED-lights. Indicator − LCD display with illumination. The display shows all the online operating parameters, temperatures, set points and alarms; Buttons − 6 buttons on PLC panel designed for the following functions: Esc −...
- Page 18 VUT .. WH ЕС Table 2 Menu tree Factory setting Functions and parameters, effects Online parameters (online pram-s) Online system parameters Online temperatures (online temper-s) Online temperature sensor reading menu ТЕ1 Intake air temperature ТЕ2 Exhaust air temperature ТЕ3 Return heat medium temperature ТЕ5 Supply air temperature ALARMS...
- Page 19 Failure U3 (underheating) appears if return heat medium temperature at the end of the heating cycle in winter mode before the fan start-up is below the set point, factory setting +40°C. Start-up of the fans is disabled. Basic controller adjustment menu. Adjustment editing by professionals only! Editing by unauthorized unskilled labour may Adjustment result in the controller non-serviceability or malfunction.
- Page 20 VUT .. WH ЕС Additional adjustments Additional controller adjustment menu Date/time Day and time in adjustment menu Date Date adjustment menu Тime Time adjustment menu PLC timer correction factor per month. If the PLC timer is too fast or too low, adjust the timer respectively by means of adjusting the Correct time miscoordination time per month.
- Page 21 Water heater adjustment Water heater adjustment menu. (Adjust-heater) Return heat medium temperature in winter mode when the fans Q-01 are turned off that is kept automatically at set level by means of actuating the heat medium regulating valve [°C]. Time period for air heating coil preheating [s]. During this period the Q-02 heat medium regulating valve is fully opened, the pump is turned on.
- Page 22 VUT .. WH ЕС Heat exchanger adjustments Heat exchanger adjustment menu. (Adjust-Recuper.) Minimum allowable exhaust air temperature downstream from the heat exchanger that does not require exhaust temperature regulation [ºC]. If actual exhaust air temperature drops down below R-01 R-01 parameter, the bypass damper is partially opened to keep exhaust air temperature within required parameters.
- Page 23 The following alarms are possible: water heater freezing danger according to too low return heat medium temperature; water heater freezing danger according to too low air temperature downstream from the water heater; low return heat medium temperature (cold start is disabled); low exhaust air temperature to prevent the heat exchanger from freezing;...
- Page 24 VUT .. WH ЕС Remote control panel The unit is equipped with a remote control panel that has the following functions: Turning the unit on/off from the control panel; Setting required air capacity (auto/high/med/low); Setting supply air temperature; Displaying indoor temperature; Day/Night mode switching on/off.
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Page 25: Functional Diagram
FUNCTIONAL DIAGRAMM INSIDE OUTSIDE Power 230V AC 24V A C Design. Name Supply damper actuator Extract damper actuator ByPass damper actuator Heat medium regulating valve actuator Outdoor air temperature Temperature sensor at outlet from the heat exchanger Return heat medium temperature sensor Freeze protection thermostat Supply air duct temperature sensor Remote control panel... -
Page 26: Technical Maintenance
VUT .. WH ЕС MAINTENANCE Maintenance operations of the unit are required 3-4 times per year. Maintenance includes regular cleaning and the following operations: Filter maintenance Dirty filters increase air resistance in the system and reduce supply air volume. The filters require cleaning once in 3-4 months. -
Page 27: Fault Handling
FAULT HANDLING Possible faults and fault handling Table 3 Problem Possible reasons Fault handling Make sure the power supply line is connected No power supply. correct, otherwise troubleshoot the connection error. The fan(s) do(es) not get started Motor is jammed, the blades Turn the unit off. -
Page 28: Storage And Transportation Rules
VUT .. WH ЕС STORAGE AND TRANSPORTATION RULES Store the unit in the manufacturer’s original packing box in a closed ventilated premise with temperature range from +10°C to +40°C and relative humidity less than 80% (at 20°C). Vapours or particles which can cause corrosion or damage the insulation or connection tightness are not allowed in the storage environment. -
Page 29: Acceptance Certificate
ACCEPTANCE CERTIFICATE The air handling unit with heat recovery VUT______WH EC has been duly certified as serviceable. We hereby declare that the product complies with the essential protection require- ments of Electromagnetic Council Directive 2004/108/EC, 89/336/EEC and Low Volt- age Directive 2006/95/EC, 73/23/EEC and CE-marking Directive 93/68/EEC on the ap- proximation of the laws of the Member States relating to electromagnetic compatibility. - Page 30 VUT .. WH ЕС...
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