NuAire DAVE Installation, Operating,  & Maintenance Instructions Download Page 1

Service/Maintenance Access – Unit must be installed with a 

minimum of unit depth as additional clearance i.e DE1-BC 

either allow 233mm above or below unit.

DAVE Extract Fans

The Dave range of in-line backward curve fans consisting of 
9 duty sizes with a maximum of 1.1m

3

/s (1100l/s).

Units are manufactured from aluzinc, rectangular in section and have
circular rigid spigots at each end. All units are supplied with fixing
brackets designed to simplify installation.

1.0 Fan Unit Coding Descriptions

2.0 Handling

Always handle the units carefully to avoid damage and distortion.
Care must be taken to ensure any slings used for hoisting do not
damage the casing or the control module components (BC models). 

Note: The weight of the unit is on the rating plate.

Figure 1: Typical lifting methods.

3.0 Installation

Installation must be carried out by competent personnel, in 
accordance with good industry practice, the appropriate authority
and in conformance with all statutory and governing regulations. 

Access to the unit for maintenance is via the top or bottom lid,
therefore this should be taken into account before installation 
takes place (See important note below).

Dave extract fans can be installed in any orientation. Units are 
supplied complete with four support mounting brackets for quick
and easy installation, either surface mounted or suspended with
drop rods. 

Figure 2: Units supplied with four mounting brackets with 
1 x M8 hole in each.

4.0 Motor Details

Unit Code 

Voltage

Input

Start

f.l.c.

Nominal

phase

power

current

(amps)

fan

frequency

(kW)

(amps)

speed

DE1-BC/DE1A-BC

230/1/50

0.03

0.27

0.27

3770

DE2-BC/DE2A-BC

230/1/50

0.088

0.75

0.75

3200

DE2H-BC/DE2HA-BC

230/1/50

0.17

1.4

1.4

4060

DE3-BC/DE3A-BC

230/1/50

0.17

1.4

1.4

2860

DE4-BC/DE4A-BC

230/1/50

0.17

1.35

1.35

2550

DE4H-BC/DE4HA-BC

230/1/50

0.49

2.2

2.2

3700

DE5-BC/DE5A-BC

230/1/50

0.5

2.2

2.2

2250

DE6-BC/DE6A-BC

230/1/50

0.45

2.9

2.9

1710

DE7-BC/DE7A-BC

230/1/50

0.775

3.5

3.5

1650

60

O

C (sizes 1-5), 40

O

C (sizes 6-7) maximum permissable air temperature

passing over motor.

The EMC Directive 
2004/108/EC  
The Low Voltage 
Directive 
2006/95/EC

Nuaire Limited

Western Industrial Estate  Caerphilly  United Kingdom  CF83 1NA  

T: 029 2085 8400  F: 029 2085 8444  E: [email protected]  W: www.nuaire.co.uk

1

09. 04. 15. Leaflet Number 671680

DAVE Extract Fans (BC Models)

For Internal and External use

Installation, Operating & Maintenance Instructions

DE1-BC

| | | |

1 2 3 4

1. DAVE Range

2. Extract fan

3. Case: standard

size (1-7))

4. Control

BC = Basic control

DE4HA-BC

| | | | | |

1 2 3 4 5

6

1. DAVE Range 

2. Extract fan

3. Case: size (1-7)

4. H = High pressure

fan (Size 2 & 4 only)

5. Extended case

6. Control

BC = Basic control

Assembly with
base frame.

Palletised.

Forklift.

Slings via spreaders fitted to unit
with base frame.

Please note that above images are
examples of typical lifting methods. 
Actual unit lifting plan and risks
must be assessed by competent 
personnel before moving the unit.

Summary of Contents for DAVE

Page 1: ... with drop rods Figure 2 Units supplied with four mounting brackets with 1 x M8 hole in each 4 0 Motor Details Unit Code Voltage Input Start f l c Nominal phase power current amps fan frequency kW amps speed DE1 BC DE1A BC 230 1 50 0 03 0 27 0 27 3770 DE2 BC DE2A BC 230 1 50 0 088 0 75 0 75 3200 DE2H BC DE2HA BC 230 1 50 0 17 1 4 1 4 4060 DE3 BC DE3A BC 230 1 50 0 17 1 4 1 4 2860 DE4 BC DE4A BC 23...

Page 2: ...116 116 59 DE7A BC 1005 1200 500 400 116 116 59 Weights kg Extract fans Unit Code Unit Weights kg Unit Code Unit Weights kg DE1BC 25 DE5 BC 59 DE1A BC 30 DE5A BC 70 DE2 BC 25 DE6 BC 69 DE2A BC 40 DE6A BC 75 DE2H BC 25 DE7 BC 82 DE2HA BC 45 DE7A BC 90 DE3 BC 30 DE3A BC 50 DE4 BC 35 DE4A BC 67 DE4H BC 40 DE4HA BC 67 Unit Code Standard B C D G H J Case A Dia DE1 BC 605 559 233 150 116 116 59 DE2 BC 6...

Page 3: ...x speed TK TK Motor Thermal Overload Isolator by others 230V 50Hz N L N L V 1 10V SIG 0V 0V Speed control signal IV fan off Alternatively link from V to SIG for max speed T Tach output open collector 1 pulse per revolution electrically isolated Isolation Before commencing work make sure that the unit and Nuaire control are electrically isolated from the mains supply 3 09 04 15 Leaflet Number 67168...

Page 4: ...n out the interior as necessary Check all parts for security and that the impeller rotates freely taking care not to disturb the balance Ensure all control components are secure and clean refit the cover Lubrication Motors are fitted with sealed for life bearings and do not require any lubrication Filter care replacement The filter where applicable will require cleaning on a regular basis The freq...

Page 5: ...details contained in this manual and general good practice 10 0 Spares for Dave Extract fans Spare parts and replacement components are available from Nuaire Ltd Please contact us on the numbers below for further details G3 Filter applicable to Extended case type A only Unit Size Replacement Part No DE1A D1A G3FILTERKIT DE2A D2A G3FILTERKIT DE2HA D2HA G3FILTERKIT DE3A D3A G3FILTERKIT DE4A D4A G3FI...

Page 6: ...arranged so as not to bear on the casing 3 3 Equipment stored on site prior to installation should be protected from the weather and steps taken to prevent ingress of contaminants 4 0 OPERATIONAL LIMITS 4 1 It is important that the specified operational limits for the equipment are adhered to e g operational air temperature air borne contaminants and unit orientation 4 2 Where installation accesso...

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