Airflow Duplexvent BV400 Operating instructions

MODEL: BV400

Mechanical Ventilation with Heat Recovery

User and Maintenance Manual

Part No: 90000660

PLEASE RETAIN THESE INSTRUCTIONS WITH THE PRODUCT

Page 1 of 32

Page 2 of 32

Page 3 of 32

1. Introduction................................................................................................................

2. Why Ventilate?...........................................................................................................

3. How Does A Ventilation System With Heat Recovery Work?................................

4. Components...............................................................................................................

5. Technical Data............................................................................................................

6. Performance Curve....................................................................................................

7. Sound Curve...............................................................................................................

8. Dimensions.................................................................................................................

9. Operating Instructions..............................................................................................

9.1 Pro Control Settings.....................................................................................

9.2 Pro Panel Screen.........................................................................................

9.3 Pro Panel Error Code List............................................................................

9.4 Modbus Connection.....................................................................................

9.5 Fan Speed Adjustment.................................................................................

9.6 Other Control Functions...............................................................................

9.7 Control Card Troubleshoot...........................................................................

10. Maintenance Instructions........................................................................................

10.1 Filter Maintenance......................................................................................

10.2 Heat Exchanger Maintenance....................................................................

10.3 Sensor Replacing Instruction.....................................................................

10.4 Other Maintenance Procedures.................................................................

11. Accessories..............................................................................................................

12. Troubleshooting.......................................................................................................

13. Declaration Of Conformity......................................................................................

14. Warranty....................................................................................................................

INDEX

1. Introduction

2. Why Ventilate?

Dear Customer,

Thank you for choosing a Duplexvent Mechanical Ventilation with Heat Recovery (MVHR) unit.

The balanced heat recovery ventilation unit Duplexvent BV400 has a state of the art design and

must be used according to the planning calculations and operating instructions.

Please read the information in the user manual carefully before you start using your equipment.

In this document you will find instructions for usage and maintenance which are necessary to

operate your unit properly and improve the longevity of your ventilation unit.

This manual is intended for qualified installers and users of this unit. If you have any further

questions, please contact:

Airflow Developments Limited

Aidelle House, Lancaster Road, Cressex Business Park

High Wycombe, Buckinghamshire, HP12 3QP

United Kingdom

Tel: (Int +44) (UK 0) 1494 560800

Fax: (Int +44) (UK 0) 1494 461073

E-mail: [email protected]

Visit: www.airflow.com

Please keep this manual in a place where it is accessible at all times. In case of loss of this

document please refer to the relevant product page on our website.

The manufacturer is not liable for damage caused by unprofessional installation and operation

that is not in compliance with this manual. Failure to follow these instructions may cause the loss

of product warranty.

Electrical Connection

Caution: Before opening the door of the unit for cleaning, filter replacement or

general maintenance always make sure that the equipment is

isolated or disconnected from the power supply.

With ever increasing energy costs the need to conserve heat and power is leading to higher

levels of insulation and air tightness in residential dwellings and commercial buildings which

inevitably leads to poor indoor air quality.

In a healthy home, thousands of litres of fresh air are needed every day to replace the moist air

generated by individuals and also through cooking, washing and bathing (please refer to UK

Building Regulations, Approved Document F for guidance).

Danger

Electric Shock

risk

Page 4 of 32

3. How Does A Ventilation System With Heat Recovery Work?

Heat Recovery is a process of continuously heating incoming fresh air, by using the heat energy

from outgoing stale, warm air and transferring a percentage of it to the incoming fresh air. This is

accomplished by passing the incoming and outgoing air through a highly efficient heat

exchanger. At no time do the airstreams mix as the heat radiates through plates of the heat

exchanger, so no odour issues are possible.

Extract Air

Stale air is contaminated with humidity and odours which are extracted from the kitchen,

bathroom, toilet, en-suite and utility rooms. Extraction vents in wet room areas allow a constant

air volume to be extracted.

This is backed up by a boost facility, removing stale air at a higher rate for a short period of time.

Supply Air

Fresh oxygenated air from outside passes through the filter and heat exchanger before being

supplied into bedrooms, living and dining rooms etc. This fresh air is drawn into the various wet-

rooms collecting pollutants on its way such as moisture, odours, allergens and volatile organic

components. The air is also heated as it passes from room to room using the statutory gap at the

bottom of internal doors when closed.

The now stale, polluted air is then drawn out of wet rooms through the heat recovery unit to

outside, completing the cycle.

Ventilation is necessary to provide a healthy and comfortable internal environment for a

building's occupants. The main task of ventilation is to remove polluted indoor air from a building

and replace it with fresh outdoor air.

Page 5 of 32

Extracted Air:

bathroom, en-suite, toilet,

utility and kitchen

Stale Air to Outside

Incoming Fresh Air

Heat Recovery Unit

Fresh Air from Outside:

bedroom, living-room and dining-room

EC Fan Speed settings selected on installation

(Low & High speed levels are 100% adjustable)

Typical Ventilation Settings at 100 Pa

Rated Voltage

Maximum Air Volume (at 0 Pa)

Air Volume (at 100 Pa)

Thermal Efficiency

Specific Power Input

Power Supply

Maximum Power Input

Maximum Current

Filter Class (conforming to EN779)

Duct Connection Ø

Condensate Discharge Ø

Protection Class

Operating Temperature

Operating Humidity

Dimensions (W x H x D)

Weight

*Low speed air flow is given for 50 Pa.

450 m³/h (125 l/s)

370 m³/h (103 l/s)

90.5%

0.259 W/m³/h

230V / 1PH / 50Hz

169 W

1.5 A

G4 (F7 optional)

160 mm

22 mm

IP44

-10°C to +40°C

0% to 80% RH

710 x 725 x 630 mm

41 kg

50 m³/h

3.0 V

Low

160 m³/h

5.5 V

Medium

310 m³/h

8.0 V

High

370 m³/h

10.0 V

Boost

4. Components

5. Technical Data

Page 6 of 32

Control Box

Extract & Supply Air Filters

By-pass Module

Heat Exchanger

Metal Casing

Extract & Supply Air Fans

* Humidity sensor is built-in as a standard.

Page 7 of 32

100

150

200

250

300

350

400

450

500

100 200 300 400 450 500

350

250

150

Air Volume (m³/h)

External Pressure (Pa)

Low Speed

Medium Speed

High Speed

Boost

6. Performance Curve

Low Speed

Medium Speed

High Speed

Boost

7. Sound Curve

Octave Sound Pressure Level (dB: Overall A Scale )

Central Frequency (Cycle per Second) Hz

dB(A)

63 125 250 500 1000 2000 4000 8000

NR0 NR10 NR20

NR40

NR50

NR60

NR30

The graph below shows Octave Sound Pressure Level for different fan speeds and Frequency

bands. It also shows the NR curves, which specify Maximum Noise Rating Level for various

applications according to the table below.

Noise Rating Curve

Maximum Noise

Rating Level

Application

NR 25

Concert halls, broadcasting and recording studios, churches

NR 30

Private dwellings, hospitals, theaters, cinemas, conference rooms

NR 35

Libraries, museums, court rooms, schools, hospitals operating theaters

and wards, flats, hotels, executive offices

NR 40

Halls, corridors, cloakrooms, restaurants, night clubs, offices, shops

NR 45

Department stores, supermarkets, canteens, general offices

NR 50

Typing pools, offices with business machines

NR 60

Light engineering works

NR 70

Foundries, heavy engineering works

Page 8 of 32

8. Dimensions

Front View

Service Space

Top View

710

725

731

160

287 116

130 103475

Rear

Front

630

610

A clear space of 600mm

should be provided in

front of the unit to allow

for servicing.

Page 9 of 32

Clearance for condensate drain

Front View

Service Space

Top View

710

725

731

160

287 116

130 103475

Rear

Front

630

610

*All dimensions are in mm.

min. 110 mm.

9. Operating Instructions

Continuous ventilation is necessary to ensure a healthy indoor air quality and to maintain the

building fabric in good condition at all times. Even with prolonged absence of residents (i.e.

holiday) it is not recommended to switch off the ventilation unit since indoor contaminants are

still being produced and entering the air, causing the air to get stuffy and a high possibility of

moisture damage due to excess humidity during the heating season.

Do not turn off the device! This is required for protection against moisture in accordance

with DIN 1946 Part 6 and Building Regulations 2010 Approved Document Part F.

The ventilation unit works properly when the flow rates are adjusted in accordance with the

above regulations to ensure optimum ventilation of the house.

Note: The low and high speed levels can be adjusted for commissioning purposes by changing

values in Registers 68-71 in Pro Panel (please see chapter 9.4.4).

This can be also done by using manual potentiometers, which are located at the control box

mounted on the Fan module inside the unit. The medium speed has been set in the controller's

software by the manufacturer and is set as the average value of the manually adjusted low and

high speed levels.

Parameters Settings

Low Speed Supply/Extract 30% (3V)

55% (5.5V)

80% (8V)

100% (10V)

15 min

1 min

3000 hours

22°C

Extract Air Temperature

-3°C

15 min

0°C

Medium Speed Supply/Extract

High Speed Supply/Extract

Boost Speed Supply/Extract

Manual Boost Overrun

On-demand Boost Delay

Filter Timer

Requested Indoor Temperature

Indoor Temperature Selection

Defrost Temperature

Defrost Cycle

Pre-heater Temperature

Default Factory Settings

Page 10 of 32

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