NuAire DS(NC) Series User manual

1
05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DS(NC)
DAVE Supply Fans With No Control
Installation Manual
1.0 SAFETY INFORMATION
• The provision of the electrical supply and the connection of the unit to the electrical supply must
be carried out by a qualified electrician.
• Isolate from power supply before removing any covers. During installation / maintenance ensure
all covers are fitted before switching on the mains supply.
• All-pole disconnection from the mains as shown in the wiring diagram must be incorporated
within the fixed wiring and shall have a minimum contact separation of 3mm in accordance with
latest edition of the wiring regulations.
• This unit must be earthed.
• Ducting must be securely fixed with screws to the spigot to prevent access to live parts. Duct
runs terminating close to the fan must be adequately protected by suitable guards.
• This appliance should not be used by children or persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge, unless they have been given supervision
or instruction concerning the safe use of the appliance by a person responsible for their safety.
Children shall not play with the appliance. Cleaning and user maintenance shall not be carried
out by children.
1.1 Symbols
GENERAL WARNING
Signifies a general warning regarding hazard specified by supplementary information.
ELECTRIC SHOCK
This unit must be completely electrically isolated before any panels are removed. Check
mains supply and control connections.
ROTATING PARTS
This unit contains fast moving rotational parts which may start automatically. It is the
sole responsibility of the installer to adequately guard these components.
REFER TO INSTRUCTION MANUAL
Read and understand the installation and maintenance manual before installing,
operating or maintaining this product.

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
1.2 Important Information
This manual contains important information on the safe and
appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the product.
While the product has been manufactured according to the accepted
rules of current technology, there is still a danger of personal injury or
damage to equipment if the following general safety instructions and
the warnings contained in these instructions are not complied with.
•Read these instructions completely and thoroughly before
working with the product.
•Keep these instructions in a location where they are accessible
to all users at all times.
•Always include the operating instructions when you pass the
product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is
recommended when interacting with Nuaire product:
•Protective Steel Toed Shoes - when handling heavy objects.
•Full Finger Gloves (Marigold PU800 or equivalent) - when
handling sheet metal components.
•Semi Fingerless Gloves (Marigold PU3000 3DO or equivalent)
- when conducting light work on the unit requiring tactile
dexterity.
•Safety Glasses - when conducting any cleaning/cutting operation
or exchanging filters.
•Reusable Half Mask Respirators - when replacing filters which
have been in contact with normal room or environmental air.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
2.0 INTRODUCTION
The Dave range of in-line backward curve fans consists of 9 sizes
with a maximum duty of 1.1m3/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.
2.1 Code Description:
1 2 3 - 4 5 6
DS 2 HA - L NC H
1. Range: DS =DAVE Supply
2. Unit Size: 1 - 7
3. Fan / Case Type: A = Extended Case (Includes G3 Filter)
H= High Pressure Fan (Size 2 & 4 only)
HA = High Pressure Fan (Size 2 & 4 only)
with Extended Case (Includes G3 Filter)
4. Heating Type: E = Electric Heating
L = LPHW Heating
N = No Heating
5. Control: NC = No Control
6. Electrical Frequency: No Reference =50Hz
H = 60Hz
3.0 DELIVERY & RECEIPT OF EQUIPMENT
All equipment is inspected prior to despatch and leaves the factory in
good condition. Upon receipt of the equipment an inspection should be
made and any damage indicated on the delivery note.
Particulars of damage and/or incomplete delivery should be endorsed
by the driver delivering the goods before offloading by the purchaser.
No responsibility will be accepted for damage sustained during the
offloading from the vehicle or on the site thereafter.
All claims for damage and/or incomplete delivery must be reported to
Nuaire within two days of receipt of the equipment.
3.1 Offloading & Handling
The weight of the unit modules and palletised items are displayed on
the packaging.
Some of the modules have an uneven weight distribution, and this will
be indicated by labelling where appropriate.
Offloading and positioning of the equipment is the responsibility of
the purchaser. Items should only be lifted by competent personnel
following appropriate risk assessment.
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.
1 Typical Loading Methods

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
4.0 DIMENSIONS (mm) & WEIGHTS (kg)
Dia.
A
KB
L
C
J
H
G
Removable
weatherproof
control cover
Airflow
direction
2 DAVE Supply Unit Dimensions
Unit Code A B C 'D'
Dia. G H J K L Weight (kg)
DS1A-NNC 1005 559 233 150 370 150 100 960 609 30
DS1A-LNC 1005 559 233 150 430 175 190 960 609 55
DS1A-ENC 1005 559 233 150 430 155 155 960 609 50
DS2A-NNC 1005 696 300 200 370 150 100 960 746 40
DS2A-LNC 1005 696 300 200 430 175 190 960 746 60
DS2A-ENC 1005 696 300 200 430 155 155 960 746 50
DS2HA-NNC 1005 696 300 200 370 150 100 960 746 40
DS2HA-LNC 1005 696 300 200 430 175 190 960 746 60
DS2HA-ENC 1005 696 300 200 430 155 155 960 746 50
DS3A-NNC 1005 780 345 200 370 150 100 960 830 45
DS3A-LNC 1005 780 345 200 430 175 190 960 830 65
DS3A-ENC 1005 780 345 200 430 155 155 960 830 55
DS4A-NNC 1005 840 370 250 370 150 100 960 890 50
DS4A-LNC 1005 840 370 250 430 175 190 960 890 70
DS4A-ENC 1005 840 370 250 430 155 155 960 890 60
DS4HA-NNC 1005 840 370 250 370 150 100 960 890 70
DS4HA-LNC 1005 840 370 250 430 175 190 960 890 70
DS4HA-ENC 1005 840 370 250 430 155 155 960 890 60
DS5A-NNC 1155 984 410 315 370 150 100 1110 1034 75
DS5A-LNC 1155 984 410 315 430 175 190 1110 1034 105
DS5A-ENC 1155 984 410 315 430 155 155 1110 1034 90
DS6A-NNC 1155 1092 455 400 370 150 100 1110 1142 80
DS6A-LNC 1155 1092 455 400 430 175 190 1110 1142 110
DS6A-ENC 1155 1092 455 400 430 155 155 1110 1142 90
DS7A-NNC 1155 1200 500 400 370 150 100 1110 1250 95
DS7A-LNC 1155 1200 500 400 430 175 190 1110 1250 120
DS7A-ENC 1155 1200 500 400 430 155 155 1110 1250 105
Removable Weatherproof Control Cover
Unit Code Width Height Depth
DS(1-7)A-NNC 470 173 120
DS(1-2)A-LNC 649 183 216
DS3A-LNC 649 243 256
DS4A-LNC 649 251 256
DS(5-7)A-LNC 649 323 281
DS(1-7)A-ENC 530 178 175

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
5.0 MECHANICAL INSTALLATION
Installation must be completed by competent persons, in accordance
with good industry practice and should conform to all governing and
statutory bodies i.e. IEE, CIBSE, etc.
External units must not be installed at an angle over 5° from the
horizontal.
Mounting in the vertical orientation shown above IS NOT
ADVISABLE for LPHW units due to the actuator being below the
valve.
Service / Maintenance Access – Unit must be installed with a
minimum of unit depth as additional clearance i.e. DS1A-NES
either allow 233mm above or below unit.
Access to the unit for maintenance is via the top or bottom lid, this
should be taken into account before installation takes place (see
important note below).
When weather cover is removed from control, always replace the
removed fixings.
Front Elevation
Control
Airflow
Coil
Connections
3 Incorrect Mounting Orientation (LPHW Units)
4 Unit Mounting Brackets (M8)

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
6.0 ELECTRICAL INSTALLATION
Isolation - Before commencing work, make sure that the unit and
Nuaire control are electrically isolated from the mains supply.
6.1 Unit Details
Unit details including Full Load Current, Voltage, fan speed etc. can be
found on the unit label.
6.2 Wiring Diagrams
The wiring illustrations below are for units without control. All wiring
is terminated in junction boxes fitted to the side of the unit. Local
isolator (by others)
Do not wire the power supply to motor via the motor alarm relay as
terminals are only closed after the motor is energized.
The alarm relay on condensate may require the use of a contactor if the
host equipment supply is switched.
6.2.1 DS1-4 with No Heating
Key:
Pre-Wired Connection
Factory Connection
Optional External Connection
Mandatory External Connection
A1 : Rotary Isolating Switch (Supplied by Customer.)
A3 : Close to Open IO Damper (Supplied by Customer.)
W2 : Dirty Filter Alarm (Open = Alarm)
Supply Fan E
A1
Neutral
Live 1
Live 2
Live 3
Supply Fan
Control
A1
Main Supply
Connection
IO Damper N
IO Damper
Close
Supply Fan L1
Supply Fan 10v
Supply Fan 0-10v
Supply Fan 0v
A3
IO Damper
Open
A2
Supply Fan N
W2
Supply Air flow
Alarm.
(<1V Return is
Fault)
B1 B2
Supply AFS 0v
B3
Supply AFS Signal
Supply AFS 24v
Supply Fan Power Supply Fan Control
08 09 10 11 15 16 17 18 23 24 25 26 27 28 35 36
IO Damper
Earth Block Dirty
Filter
Dirty Filter
5 Wiring - DS1-4 with No Heating
6.2.2 DS5-7 with No Heating
6 Wiring - DS5-7 with No Heating
W2
B1 B2
Key:
Pre-Wired Connection
Factory Connection
Optional External Connection
Mandatory External Connection
A1 : Rotary Isolating Switch (Supplied by Customer.)
A3 : Close to Open IO Damper (Supplied by Customer.)
W1 : Supply Fan Alarm (Open = Alarm)
W2 : Dirty Filter Alarm (Open = Alarm)
Neutral
Live 1
Live 2
Live 3
Supply Fan
Control
A1
Main Supply
Connection
A3
Supply Fan Power Supply Fan Control
08 09 10 11 15 16 17 18 23 24 25 26 27 28 35 36
IO Damper
Earth Block Dirty
Filter
Dirty Filter
Supply Fan
Alarm.
(Open = Fault.)
Supply Fan E
A1
IO Damper N
IO Damper
Close
Supply Fan L1
Supply Fan 10v
Supply Fan 0-10v
Supply Fan 0v
IO Damper
Open
A2
Supply Fan N
W1
A3 A4

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
6.2.3 DS1-4 with Electric Heating
Supply Fan E
A1
Neutral
Live 1
Live 2
Live 3
Supply Fan
Control
A1
Main Supply
Connection
IO Damper N
IO Damper
Close
Supply Fan L1
Supply Fan 10v
Supply Fan 0-10v
Supply Fan 0v
A3
IO Damper
Open
A2
Supply Fan N
S1
W2 S2 W4
C1 C2
Key:
Pre-Wired Connection
Factory Connection
Optional External Connection
Mandatory External Connection
A1 : Rotary Isolating Switch (Supplied by Customer.)
A3 : Close to Open IO Damper (Supplied by Customer.)
S1 : Fresh Air Sensor
S2 : Supply Air Sensor
W2 : Dirty Filter Alarm (Open = Alarm)
W4 : Capilliary Switch Manual Reset (Open = Alarm)
Supply Air flow
Alarm.
(<1V Return is
Fault)
B1 B2
Supply AFS 0v
B3
Supply AFS Signal
Supply AFS 24v
Fresh Air
Temp Sens
Supply Air
Temp Sens
Electric Heater Live
Electric Heater Earth
Electric Heater Neutral
Overtemp Alarm
Overtemp Alarm
Supply Fan Power Supply Fan Control
08 09 10 11 15 16 17 18 23 24 25 26 27 28
02 03 04 05 06 0701 35 36 37 38 39 40
IO Damper
Earth Block Dirty
Filter
Fresh Air
Sensor
Supply Air
Sensor
Dirty Filter
7 Wiring - DS1-4 with Electric Heating
6.2.4 DS5-7 with Electric Heating
W1 S1
A3 A4
W2
B1 B2 C1 C2
S2
D6 D7
Key:
Pre-Wired Connection
Factory Connection
Optional External Connection
Mandatory External Connection
A1 : Rotary Isolating Switch (Supplied by Customer.)
A3 : Close to Open IO Damper (Supplied by Customer.)
S1 : Fresh Air Sensor
S2 : Supply Air Sensor
W1 : Supply Fan Alarm (Open = Alarm)
W2 : Dirty Filter Alarm (Open = Alarm)
W4 : Capilliary Switch Manual Reset (Open = Alarm)
Neutral
Live 1
Live 2
Live 3
Supply Fan
Control
A1
Main Supply
Connection
A3
Fresh Air
Temp Sens
Supply Air
Temp Sens
Supply Fan Power Supply Fan Control
08 09 10 11 15 16 17 18 23 24 25 26 27 28
02 03 04 05 06 0701 35 36 37 38 39 40
IO Damper
Earth Block Dirty
Filter
Fresh Air
Sensor
Supply Air
Sensor
Dirty Filter
Supply Fan
Alarm.
(Open = Fault.)
Supply Fan E
A1
IO Damper N
IO Damper
Close
Supply Fan L1
Supply Fan 10v
Supply Fan 0-10v
Supply Fan 0v
IO Damper
Open
A2
Supply Fan N
W4
B1 B2
Electric Heater Live
Electric Heater Earth
Electric Heater Neutral
Overtemp Alarm
Overtemp Alarm
8 Wiring - DS5-7 with Electric Heating

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
6.2.5 DS1-4 with LPHW Heating
Key:
Pre-Wired Connection
Factory Connection
Optional External Connection
Mandatory External Connection
A1 : Rotary Isolating Switch (Supplied by Customer.)
A3 : Close to Open IO Damper (Supplied by Customer.)
S1 : Fresh Air Sensor
S2 : Supply Air Sensor
W2 : Dirty Filter Alarm (Open = Alarm)
41 42 43
LPHW
Actuator
Supply Fan E
A1
Neutral
Live 1
Live 2
Live 3
Supply Fan
Control
A1
Main Supply
Connection
IO Damper N
IO Damper
Close
Supply Fan L1
Supply Fan 10v
Supply Fan 0-10v
Supply Fan 0v
A3
IO Damper
Open
A2
Supply Fan N
W2
Supply Air flow
Alarm.
(<1V Return is
Fault)
B1 B2
Supply AFS 0v
B3
Supply AFS Signal
Supply AFS 24v
Supply Fan Power Supply Fan Control
08 09 10 11 15 16 17 18 23 24 25 26 27 28 35 36
IO Damper
Earth Block Dirty
Filter
Dirty Filter
LPHW Actuator
24v 3-point Control
C1 C2
LPHW Actuator Close/Down
C3
LPHW Actuator Common LPHW Actuator Open/Up
9 Wiring - DS1-4 with LPHW Heating
6.2.6 DS5-7 with LPHW Heating
W2
B1 B2
Key:
Pre-Wired Connection
Factory Connection
Optional External Connection
Mandatory External Connection
A1 : Rotary Isolating Switch (Supplied by Customer.)
A3 : Close to Open IO Damper (Supplied by Customer.)
W1 : Supply Fan Alarm (Open = Alarm)
W2 : Dirty Filter Alarm (Open = Alarm)
Neutral
Live 1
Live 2
Live 3
Supply Fan
Control
A1
Main Supply
Connection
A3
Supply Fan Power Supply Fan Control
08 09 10 11 15 16 17 18 23 24 25 26 27 28 35 36
IO Damper
Earth Block Dirty
Filter
Dirty Filter
Supply Fan
Alarm.
(Open = Fault.)
Supply Fan E
A1
IO Damper N
IO Damper
Close
Supply Fan L1
Supply Fan 10v
Supply Fan 0-10v
Supply Fan 0v
IO Damper
Open
A2
Supply Fan N
41 42 43
LPHW
Actuator
LPHW Actuator
24v 3-point Control
C1 C2
LPHW Actuator Close/Down
C3
LPHW Actuator Common LPHW Actuator Open/Up
W1
A3 A4
10 Wiring - DS5-7 with LPHW Heating

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
7.0 CONTROLS
The No Control (NC) units described in this manual are supplied
without any controls. It is the installer’s responsibility to select
and install suitable controller(s) and circuit(s) to produce the
desired output from the units while remaining within the units safe
performance envelope.
All electric heater control systems must include an over
temperature safety device rated at 80°C maximum. The fans
should remain running for at least 4 minutes after the electric
element is turned off to ensure the unit does not overheat.
8.0 MAINTENANCE
Isolation - Before commencing work, make sure that the unit and
Nuaire control are electrically isolated from the mains supply.
It is important that maintenance checks are recorded and that the
schedule is always adhered to, in all cases, the previous report should
be referred to.
Motors are fitted with sealed for life bearings and do not require any
lubrication.
8.1 Routine Maintenance
•Remove the top or the bottom cover and carefully clean out the
interior as necessary.
•Check all parts for security and that the impeller rotates freely,
taking care not to disturb the balance.
•The filter (where applicable) will require cleaning on a regular
basis. The frequency of the cleaning operation will depend on the
site conditions.
•Ensure all control components are secure and clean.
•Refit the cover.
8.2 Annually
•All electrical terminals within the unit should be tightened.
•Check all earth connections.
8.3 Dirty Filter Alarm (Extended Case Models Only)
Units pre fitted with a panel air filter are equipped with an visual Red
LED alarm on the side of the control. The pressure switch is pre set at
150pa and positioned within the unit and accessed via the removable
top or bottom panel. If required, the alarm signal can be positioned to
another area by others using the pre fitted terminal block - A volt free
relay must be used between the control and customer wiring.
LED On = Pressure exceeds the maximum allowable final pressure drop.
Replacement filter part numbers are shown below.
8.4 G4 Filter Replacement
Unit Replacement Part Number
DS1A D1A-G4FILTERKIT
DS2A D2A-G4FILTERKIT
DS2HA D2HA-G4FILTERKIT
DS3A D3A-G4FILTERKIT
DS4A D3A-G4FILTERKIT
DS4HA D4HA-G4FILTERKIT
DS5A D5A-G4FILTERKIT
DS6A D6A-G4FILTERKIT
DS7A D7A-G4FILTERKIT
8.5 F7 Filter Replacement
Unit Replacement Part Number
DS1A D1A-G4FILTERKIT
DS2A D2A-G4FILTERKIT
DS2HA D2HA-G4FILTERKIT
DS3A D3A-G4FILTERKIT
DS4A D3A-G4FILTERKIT
DS4HA D4HA-G4FILTERKIT
DS5A D5A-G4FILTERKIT
DS6A D6A-G4FILTERKIT
DS7A D7A-G4FILTERKIT
8.6 Unit Components
Key Components
A Lid / Base
B Attenuation Pods
C Attenuation Pods Retaining Clips
D G4 Filter, Optional F7 Filter (site removal)
EWeather Cover for External Control Box Installation
(If required)
F LPHW Coil / 2 Port valve (PICV)
G Electric Heater
A
B
A
E
D
B
A
B
C
A
E
D
B
F
C
A
B
A
E
D
B
G
C
11 Unit Components (No Heater)

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
12 Unit Components (LPHW Heater)
A
B
A
E
D
B
A
B
C
A
E
D
B
F
C
A
B
A
E
D
B
G
C
13 Unit Components (Electric Heater)
A
B
A
E
D
B
A
B
C
A
E
D
B
F
C
A
B
A
E
D
B
G
C
9.0 WARRANTY
The 2 year warranty starts from the day of delivery and includes parts
and labour for the first year. The remaining period covers replacement
parts only.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused, disassembled, or not
installed, commissioned and maintained in accordance with the details
contained in this manual and general good practice.
The product warranty applies to the UK mainland and in accordance
with Clause 14 of our Conditions of Sale. Customers purchasing from
outside of the UK should contact Nuaire International Sales office for
further details.
Failure to maintain the unit as recommended will invalidate the
warranty.
10.0 END-OF-LIFE AND RECYCLING
Ensure that Nuaire product is made safe from any electrical / water
/ refrigerant supplies before dismantling commences. This work
should only be undertaken by a qualified person in accordance with
local authority regulations and guidelines, taking into account all
site based risks.
Where possible Nuaire use components which can be largely recycled
when the product reaches its end-of-life:
•Fans, motors, controls, actuators, cabling and other electrical
components can be segregated into WEEE recycling streams.
•Sheet metal parts, aluminium extrusion, heating/cooling coils and
other metallic items can be segregated and fully recycled.
•EPP, plastic ducting, nylon corner pieces, plastic heat exchangers,
packaging material and other plastic components can be
segregated into mixed plastic and widely recycled.
•Cardboard packaging, wood, used filters and other paper
components can be largely recycled or fully processed in energy
from waste centres.
•Remaining Items can be further segregated and processed in
accordance with the zero waste hierarchy. Please call After Sales
Support for further information on items not listed above.
11.0 AFTER SALES AND REPLACEMENT PARTS
For technical assistance or further product information, including spare
parts and replacement components, please contact the After Sales
Department.
If ordering spares please quote the serial number of the unit together
with the part number, if the part number is not known please give a full
description of the part required. The serial number will be found on the
identification plate attached to the unit casing.
Telephone [phone]
[e-mail]
Technical or commercial considerations may, from time to time,
make it necessary to alter the design, performance and dimensions
of equipment and the right is reserved to make such changes without
prior notice.

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
NOTES

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
NOTES

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05. 04. 22. Document Number 672044
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
DAVE Supply (DS)Installation Manual
NOTES