Related Manuals for Vents NK U Series
Summary of Contents for Vents NK U Series
- Page 1 USER’S MANUAL NK…U Air duct heater with an integrated temperature control module or a control unit...
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Page 2: Table Of Contents
NK…U CONTENTS Safety requirements ............................. Purpose ..................................Delivery set .................................. Designation key ................................ Technical data ................................Unit design and operating logic ........................Mounting and set-up ............................Connection to power mains ........................Control ................................... Technical maintenance ............................Storage and transportation regulations ....................Manufacturer’s warranty ............................ - Page 3 UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS • Disconnect the unit from power mains prior • Unpack the unit with care. to any installation operations. • While installing the unit follow the safety • Do not lay the power cable of the unit in regulations specific to the use of electric close proximity to heating equipment.
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Page 4: Purpose
NK…U PURPOSE The heater is intended to heat up the supply air entering the ventilation system. The built-in temperature control module or the integral control unit ensure that air duct temperature is automatically maintained at the preset level. Being a component unit it may not be commissioned for standalone operation. -
Page 5: Technical Data
TECHNICAL DATA The unit is designed for indoor application at ambient temperature from -30 °C up to +40 °C and relative humidity up to 80 %. The unit is capable of maintaining the duct temperature in the following range: from -10 °C to +40 °C (NK...U (Un) units rated from 0.6 kW to 2.4 kW) from -30 °C to +30 °C (NK...U units rated from 3.0 kW to 54 kW) The heater is rated as a class I electric appliance. - Page 6 NK…U Technical data NK...U heater with a built-in Number of electric control unit for round ducts Minimum air Current [A] Voltage [V] heating elements x (from 3.0 kW to 9.0 kW) capacity [m power [kW] NK 150-3.4-1 U 14.7 2 items x 1.7 NK 150-3.6-3 U 3 items x 1.2 NK 150-5.1-3 U...
- Page 7 Technical data NK...U heater with a built-in Number of control unit for rectangular Minimum air electric heating Current [A] Voltage [V] Power [kW] ducts (from 4.5 kW to 54.0 kW) capacity [m elements x power [kW] NK 400x200-4.5-3 U 3x1.5 NK 400x200-6.0-3 U 3x2.0 NK 400x200-7.5-3 U...
- Page 8 NK…U OVERALL DIMENSTIONS OF NK...U(UN) WITH CAPACITY FROM 0.6 KW UP TO 2.4 KW FOR ROUND DUCTS ØD NK...U(Un) heater with a built-in temperature control module for D [mm] B [mm] H [mm] L [mm] L1 [mm] Weight [kg] round ducts (from 0.6 kW to 2.4 kW) NK 100-0.6-1 U(Un) NK 100-0.8-1 U(Un) NK 100-1.2-1 U(Un)
- Page 9 OVERALL DIMENSTIONS OF NK...U WITH CAPACITY FROM 3.0 KW UP TO 9.0 KW FOR ROUND DUCTS ALARM / POWER OPERATION ALARM / POWER OPERATION BOOSTER HEATING BOOSTER HEATING ØD ØD NK...U heater with a built-in control unit for round ducts D [mm] B [mm] H [mm]...
- Page 10 NK…U OVERALL DIMENSIONS OF NK...U HEATERS WITH CAPACITY FROM 4.5 KW TO 54 KW FOR RECTANGULAR DUCTS Ø9 8 holes ALARM / POWER OPERATION BOOSTER HEATING NK...U heater with a built-in Weight control unit for rectangular ducts B [mm] B1 [mm] B3 [mm] H [mm] H1 [mm]...
- Page 11 NK...U heater with a built-in Weight control unit for rectangular ducts B [mm] B1 [mm] B3 [mm] H [mm] H1 [mm] H2 [mm] L [mm] [kg] (from 4.5 kW to 54.0 kW) NK 600x350-9.0-3 U 28.2 NK 600x350-12.0-3 U 28.2 NK 600x350-15.0-3 U 28.5 NK 600x350-18.0-3 U...
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Page 12: Unit Design And Operating Logic
NK…U DESIGN AND OPERATING LOGIC NK...U(UN) HEATER WITH A BUILT-IN TEMPERATURE CONTROL MODULE FOR ROUND DUCTS The heater is equipped with a temperature sensor built into the aluminium tube protecting it against mechanical damage. The sensor is located behind the eclectic heating elements. The NK…Un heaters are equipped with an external duct temperature sensor. - Page 13 NK...U WITH CAPACITY FROM 3.0 KW TO 9.0 KW WITH A CONTROL UNIT FOR ROUND DUCTS AND WITH CAPACITY 4.5 KW TO 54 KW FOR RECTANGULAR DUCTS The air duct heaters with capacity from 3.0 kW to 54 kW are equipped with a control unit with a three-phase triac power controller to regulate the output of the electric heating elements.
- Page 14 NK…U FUNCTIONAL SWITCHES AND INDICATORS AC mains Operation Alarm There are three lights on the indicator panel: Power – AC mains (green light) Status lights – operation (yellow light) and Alarm (red light) Current state and malfunction indication AC mains Operation Alarm EVENT...
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Page 15: Mounting And Set-Up
MOUNTING AND SET-UP READ THIS USER’S MANUAL CAREFULLY PRIOR TO THE UNIT INSTALLATION. AFTER TRANSPORTATION OR STORAGE UNDER BELOW ZERO TEMPERATURES KEEP THE UNIT IN THE SPECIFIED OPERATION CONDITIONS FOR AT LEAST 4 HOURS BEFORE POWERING UP. Prior to the heater installation check the heater for the integrity and reliability of the heating element fixation. The working position of the heater must ensure unimpeded access to the junction box (control unit) and the RESET thermoswitch manual reset button mounted inside the control unit. -
Page 16: Connection To Power Mains
NK…U CONNECTING RECTANGULAR AIR DUCTS TO THE HEATER CONNECTION TO POWER MAINS DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY ELECTRIC INSTALLATION OPERATIONS. THE FAN MUST BE CONNECTED TO POWER MAINS BY A QUALIFIED ELECTRICIAN. THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LABEL. ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS. - Page 17 TERMINAL BLOCK ACCESS CONNECTION OF NK…U(UN) WITH CAPACITY FROM 0.6 TO 2.4 KW WITH INTEGRATED TEMPERATURE CONTROL MODULE FOR ROUND AIR DUCTS Automatic circuit breaker trip current selection NK...U(Un) heater with a built-in temperature Rated current of the Number of cores x control module for round ducts Voltage [V] circuit breaker [A]...
- Page 18 NK…U Wiring diagrams for NK...U(Un) heaters from 0.6 kW to 2.4 kW ~230 V / 50 Hz ~230 V / 50 Hz NK 100-1.2-1 U(Un) NK 160-2.0-1 U(Un) NK 100-1.6-1 U(Un) NK 160-2.4-1 U(Un) NK 100-1.8-1 U(Un) NK 200-1.2-1 U(Un) NK 125-1.2-1 U(Un) NK 200-1.7-1 U(Un) NK 100-0.6-1 U(Un)
- Page 19 Automatic circuit breaker trip current selection NK...U heater with a built-in control unit for Rated current of the Number of cores, Voltage [V] rectangular ducts (from 4.5 kW to 54.0 kW) circuit breaker [A] cross-section [ mm NK 400x200-4.5-3 U 5x2.5 NK 400x200-6.0-3 U 5x2.5...
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Page 20: Control
NK…U CONTROL Connection of NK…U, NK…Un with capacity from 0.6 kW to 2.4 kW with integrated temperature control module for round air ducts Use the temperature control knob to set the desired temperature in the air duct (thermostat operation threshold). The temperature can be set in the range from -10 °C to +40 °C. -
Page 21: Storage And Transportation Regulations
STORAGE AND TRANSPORTATION REGULATIONS Store the unit in the manufacturer’s original packing box in a dry closed ventilated premise with temperature range from +5 °C to + 40 °C. Storage environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation and sealing deformation. The unit can be carried in the original packing by any mode of transport provided proper protection against precipitation and mechanical damage. -
Page 22: Acceptance Certificate
NK…U ACCEPTANCE CERTIFICATE Unit Type Air duct heater with an integrated temperature control module or a control unit Model NK _______ U ____ Serial Number Manufacture Date The product is in compliance with EU norms and standards on low voltage guidelines and electromagnetic compatibility. We hereby declare that the product complies with the protection requirements of Electromagnetic Council Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and CE-marking Directive 93/68/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility. - Page 24 V09-2EN-06...
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