1
27. 01. 17. Leaflet Number 671372
Introduction
The NALT-H unit is supplied with a pre-wired terminal box
and an IP44 rated, class B insulated motor. The fans are
designed to convey clean air with a maximum temperature
up to 60 Deg.C (40 Deg.C - model NALT-315-H).
Do not operate the fan in the presence of inflammable vapours
(alcohol etc).
An adequate supply of fresh air must be provided if the fan is to
be fitted in a room with a gas burning appliance which is not of
the balance flue type.
1.0 Handling
Always handle the fans carefully to avoid damage and
distortion. Care should be taken to ensure that any slings used
for lifting purposes do not damage the casing, connection box,
impeller or inlet cone.
2.0 Installation
Installation must be carried out by a competent person in
accordance with the appropriate authority and conforming to all
statutory and governing regulations i.e. IEE, CIBSE, COSHE etc.
From the fan rating plate, observe the weight of the unit and
select the mounting position and structure that can support
the unit.
These fans are not for stand-alone use. They are designed to be
incorporated into ducted systems, machines or where safe
operation has been ensured by providing applicable protection
to moving parts.
This unit is not designed for external use. Before installing
ensure the impeller is running freely and there are no
obstructions to the airflow.
A robust mounting foot is available as an accessory, to ease
installation.
3.0 Dimensions (mm) & Weights (kg)
Code
A
B
C
D
Weight
(Kg)
NALT-100H 194 23 243 98 3
NALT-125H 195 27 243 123 3
NALT-150H 214 24 333 147 5
NALT-200H 223 25
333 198 5
NALT-250H 206 27
333 248 6
NALT-315H 230 25 401 312 8
4.0 Technical Data
Code
Nom
Max
Max
Max
Sound
Max
speed
adsorbed adsorbed air volume
pressure
temp
power current
(m
3
/s) level (oC)
(W)
(A)
dbA @3m
NALT-100H
2500 78
0.33
0.077
47
60
NALT-125H
2450 80
0.35
0.12
47
60
NALT-150H
2700 120
0.53
0.19
50
60
NALT-200H
2600 170
0.72
0.27
52
60
NALT-250H
2750 180
0.80
0.31
54
60
NALT-315H
2700 350
1.45
0.52
55
50
Isolation - Before commencing work make sure
that the unit, and any control are
electrically isolated from the mains supply.
A
B
D
C
B
Fig. 2.
Code descriptions
1.
Centrifugal Tube Fan Range
2. Case Size
3. H = High Performance
NALT - 100H
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1
2 3
Fig. 1.
The EMC Directive
20
1
4/
30
/E
U
The Low Voltage
directive
20
14/3
5/E
U
NALT-H FANS
Metal Cased Centrifugal Fans
Installation and Maintenance
Nuaire: A Trading Division of Polypipe Limited
Western Industrial Estate
Caerphilly United Kingdom CF83 1NA
T: 029 2088 5911 F: 029 2088 7033 E: [email protected] W: www.nuaire.co.uk
