NuAire NALT-H Series Instruction Manual

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 (m3/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
DC
B
Fig. 2.
Code descriptions
1. Centrifugal Tube Fan Range
2. Case Size
3. H = High Performance
NALT - 100H
|||
123
Fig. 1.
The EMC Directive
2014/30/EU
The Low Voltage
directive
2014/35/EU
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

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15. 05. 17. Leaflet Number 671372
Installation and Maintenance NALT-H Metal Cased Centrifugal Fans
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.
For good EMC engineering practice, any sensor cables
or switched live cables should not be placed within 50mm of
other cables or on the same metal cable tray as other cables.
Isolation - Before commencing work make sure that the
unit, switched live and Nuaire control are electrically
isolated from the mains supply.
Please note this product must be earthed.
5.0 Electrical Wiring
Electrically isolate unit before commencing any work.
Ensure that the voltage and frequency of the electrical supply
match the information stated on the Rating Plate on the unit.
Wire the unit as shown in the wiring diagram. On connecting the
electrical supply ensure that the airflow direction corresponds
with the direction of airflow arrow sited on the unit.
Fig. 3.
Electrical Note: Because the run and start currents depend upon
the duty and associated duct work of an individual unit, the
values quoted in the table are nominal.
Run currents will be exceeded if the unit is operated beyond the
operating curve shown in the performance catalogue.
6.0 Maintenance
Electrically isolate unit before commencing any work.
Usage and conditions will dictate frequency of maintenance.
We recommend a thorough inspection and cleaning three months
after commissioning and, dependant on how the fan is found at
least annually thereafter.
Fans and systems should be maintained in accordance with the
HVCA Standard Maintenance Recommendations for Mechanical
Services in Buildings Volume 11 Ventilation and Air-conditioning.
Do not use a high pressure cleaner (steam jet) or any solvents
for cleaning purposes.
Do not immerse the unit in water.
Check all parts for security and general condition.
Ensure the impeller rotates freely.
7.0 Warranty
The unit has a one year warranty. The warranty starts from the
date of delivery and covers faulty materials or workmanship
and includes parts and labour.
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.
8.0 After Sales Enquiries
For technical assistance or further product information,
including spare parts and replacement components, please
contact the After Sales Department.
Telephone [phone]
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