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Northvent CIVIC EC LB

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The CIVIC EC LB units are designed for single-room ventilation of schools, offices and other public and commercial premises. Air flow up to 580 m³/h.

Description

FEATURES
The CIVIC EC LB units are designed forsingle-room ventilation of schools, officesand other public and commercial premises.Offer the ideal simple and efficient ventilationsolutions for existing and renovated buildingsand require no layout of air ducts.Efficient supply and extract ventilation for separate premises.EC fans with low energy consumption.Low-noise operation.
Simple mounting.
DESIGNFANS
Made of high-quality polymer coated steel, internally lined with heat- and sound insulation of mineral wool or other materials.Available modifications with an integrated preheater and reheater for cold climate applications.High efficient electronically commutated motors with external motor and impeller with forward curved blades. Such motors are the most state-ofthe-art energy saving solution.EC motors are featured with high performance and total speed controllable range. High efficiency reaching 90 % is the premium advantage of the electronically commutated motors.
AIR FILTRATION
Supply air is cleaned with G4 and F8 (PM2.5 > 75 %) supply cassette air filters. For premises requiring high air quality it is recommended to install carbon F8 filters and H11 (PM2.5 > 95 %) filters. Available as specially ordered accessories.Cassette G4 filter is used for extract air filtration.
BYPASSHEATERS
The units are equipped with a bypass. The bypass damper opens for free cooling ventilation mode in summer.PREHEATING
CIVIC EC LBE and CIVIC EC LBE2 units are equipped with an electric preheater which protects the heat exchanger from freezing.
POST-HEATING
CIVIC EC LBE2 units feature an electric post-heater to raise the supply airtemperature.
AIR DAMPERS
The automatic supply and extract air dampers are used to prevent uncontrollable air draughts during the unit standstill.
CONTROLHEAT EXCHANGER
The ventilation units may be operated with an integrated or an external control panel.The CIVIC EC LB unit has a counter-flow heat exchanger made of polystyrene and aluminium.
• In cold season the heat energy of the extract air flow is absorbed by intake air flow, thus decreasing the heat losses caused by ventilation. Condensate generated during heat recovery is collected in a drain pan and removed to the sewage system.• In warm season the heat of the outdoor air is absorbed by extract air flow. This way the supply air temperature decreases and heat recovery reduces operation loads for the air conditioner.The CIVIC EC LBE unit is equipped with a counter-flow heat exchanger made of enthalpy membrane.
• In cold season the heat and moisture of the extract air are absorbed by supply air through the enthalpy membrane, thus decreasing the heat losses caused by ventilation.• In warm season the heat and moisture of the outdoor air is absorbed by extract air flow through the enthalpy membrane. This way the supply air temperature and humidity decreases and heat recovery reduces operation loads for the air conditioner.
THREE AVAILABLE MODIFICATIONS OF THE CONTROL PANEL:
 

S14

S17

S18

Built-in control panel
External control panel
Preheater 
Reheater 
Humidity sensor
CO₂ sensor
Functions
MODbus 
Speed control from 0 to 100 %
Bypass controlManualAutoAuto
Filter maintenance indicator
Alarm indicator
Timer scheduled operation 
Week scheduled operation 
Supply air temperature setup 

• – available; ○ – option.

FREEZE PROTECTION
The freeze protection function may be realized by two ways.

For the units without preheater: the supply fan shuts down on a signal from the exhaust air temperature sensor to let warm extract air flow warm up the heat exchanger. Then the supply fan turns on and the unit operates normally.For the units with a preheater: the supply air is warmed up before contacting the heat exchanger, thus preventing its freezing. In this case balanced air exchange is not interrupted.

FUNCTIONING
Cold outside air flows through the filters and heat exchanger and is moved to the room with a supply centrifugal fan.Warm polluted air from the premise flows through the filter and the heat exchanger and is exhausted outside with an extract centrifugal fan.

Accessories

Civic EC LB… 300 S17/S18Civic EC LB… 300 S14Civic EC LB… 500 S17/S18Civic EC LB… 500 S14
G4 filterFP 308x238x22 G4 PPI FP 308x238x22 G4 PPIFP 450x257x27 G4 PPIFP 450x257x27 G4 PPI
G4 filterFP 265x213x48 G4FP 265x213x48 G4FP 318x290x22 G4FP 318x290x22 G4
F8 filterFP 384x273x60 F8FP 384x273x60 F8FP 318x290x60 F8FP 318x290x60 F8
 F8 carbon filterFP 533x135x48 F8 CFP 533x135x48 F8 CFP 666x196x48 F8 CFP 666x196x48 F8 C
 H11 filterFP 533x135x60 H11FP 533x135x60 H11FP 666x196x60 H11FP 666x196x60 H11
Outer ventilation hood made of brushed stainless steelAH Civic 300 LB chrome AH Civic 300 LB chromeAH Civic 500 LB chromeAH Civic 500 LB chrome
Outer ventilation hood made of white coated steelAH Civic 300 LB whiteAH Civic 300 LB whiteAH Civic 500 LB whiteAH Civic 500 LB white
Humidity sensorFS2FS2FS2FS2
External VOC sensor (0-10V)DPWQ30600DPWQ30600
External CO2 sensor (0-10V)DPWQ40200DPWQ40200
External humidity sensor (0-10V)DPWС11200DPWС11200
Humidity sensor (NO)HR-SHR-SHR-SHR-S
Assembled U-trap SFK 20×32SFK 20×32SFK 20×32 SFK 20×32
Assembled drain pumpCP-2CP-2CP-2CP-2

Characteristics

ParameterCIVIC EC LB 300Measurement unit
Voltage220-240V
Phase1˜
Frequency50/60Hz
Max. unit current without electric heater0.9A
Max. unit current with electric heater0.9A
Preheater power consumptionW
RPM2150min-1
Air capacity320m³/h
Max. unit power without an electric heater123W
Reheater power consumptionW
Air capacity89l/s
Sound pressure level at 3 m distance35dBА
EC motoryes
Insulating material40 mm mineral woolmm
Transported air temperature-25…+50°С
Extract filterG4
Supply filterG4 and F8 (Option: F8 Carbon; H11)
Heat recovery efficiency82…97%
Heat exchanger typecounter-flow
Heat exchanger materialpolystyrene
Connected air duct diameter200mm
Casing materialpainted steel
TypeSupply and exhaust
SEC classA
Weight138±3%kg
Mountingfloor mounting

Dimensions

ModelDimensions [mm]
DHH1H2LL1WW1W2
CIVIC EC LB 30020017701476294470520620230195

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