NuAire NRG-IL125 Instruction Manual

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C nstant Pressure Variable
V lume Inline Dampers
NRG-IL 125/NRG-IL 150/NRG-IL200
Installation and Maintenance
Intr ducti n
The three m t rised inline damper m dels are designed
f r installati n with Nuaire’s range f Ec smart
C nstant Pressure Variable V lume extract fans.
The units inc rp rate a fixed damper t set the trickle
ventilati n fl w rate and a wax type 230V driven
actuat r t increase the fl w rate t b st n demand.
Units are rectangular in section, manufactured from
pre-galvanised steel and designed to match duct sizes of
125mm, 150mm and 200mm.
Dimensi ns
Handling
Handle the units carefully to avoid damage and distortion
to moving parts.
Perf rmance Detail
Unit ABC D E
NRG-IL125 50 300 125 178 178
NRG-IL150 50 300 150 178 178
NRG-IL200 50 400 200 225 225
Dimensi ns in mm.
15. 05. 17. Leaflet Number 671206
Figure 1.
Figure 2. Resistance of NRG-IL125
Figure 3. Resistance of NRG-IL150
Figure 4. Resistance of NRG-IL200
Lw P siti n 1 P siti n 2 P siti n 3 P siti n 4
100Pa 30 30.3 32.2 33.3
130Pa 33.5 32.8 36 37.1
150Pa 37.1 37.3 - 38.6
Ac ustic inf rmati n
The EMC Directive
2014/30/EU
The L w V ltage
directive
2014/35/EU
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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Installati n and Maintenance ECOSMART Constant Pressure Variable Volume Inline Dampers
Figure 6. Unit with access panel removed, showing
electrical connection and damper setting positions
Figure 5. Wiring diagram
Technical or commercial considerations may, from time to time, ma e it necessary to alter the design, performance and
dimensions of equipment and the right is reserved to ma e such changes without prior notice.
15. 05. 17. Leaflet Number 671206
(A1) Chee plate.
(A2) Chee plate.
Setting screw (B)
Electrical connections.230V 50Hz 1 phase
Installati n
The installation must be carried out by suitably qualified
and competent personnel in accordance with the
appropriate authority and in conformance with all statutory
and governing regulations i.e. lEE, CIBSE, COHSE, HVCA etc.
Mechanical installati n
The unit can be mounted in any attitude giving due
consideration to the accessibility of the access door to
complete the electrical connection, set up the damper during
commissioning and future maintenance.
A full size access panel is fitted to one side to facilitate
electrical connection and damper setting.
The unit should be coupled directly to ductwor of matching
spigot diameter and installed behind a ceiling or in a service
void and remote from any areas from which it could be
subjected to water spray.
Electrical installati n
The damper is activated by a 230V mains signal, this signal
can be derived from any switching source i.e. light switch,
mains PIR, mains rated thermostat, humidistat etc.
Offer the mains cable via the cable grommet provided
connecting Live (L), Neutral (N) and Earth (E) to the
appropriate terminals
Setting the dampers
Trickle ventilati n; minimum tric le rate is pre set by the
free area cut around the motorised damper. To increase the
tric le ventilation rate remove one of motorised damper
chee plates (A1), to further increase the tric le rate remove
the second chee plate (A2).
Boost ventilation rate is set by adjusting the setting screw
(B), with flow meter connected to duct wor and motorised
damper activated (by switching on power to unit) adjust
the damper position whilst monitoring flow meter until
desired boost airflow rate is achieved.
Maintenance
Maintenance intervals will vary according to the level of
airborne contaminant to which the unit is exposed; chec
three months after commissioning and twelve monthly
thereafter.
There are no parts requiring lubrication.
Isolate the mains supply, remove the access cover and clean
out any dust deposits. Chec the security of all components
and wire terminations - do not adjust the damper setting
screw.
To clean the dampers and internal chamber it will be
necessary to remove the unit from the system and access
through the inlet/outlet spigots, mar the position of the
setting screw (B) and ensure the position is set correctly
upon reinstatement.
There are no recommended spares, should the product
malfunction then it will require total replacement. Order
quoting all the details from the product rating plate.
Warranty
The 3 year warranty starts from the day of delivery and
includes parts and labour for the first year. The remaining 2
years 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.
After Sales Enquiries
For technical assistance or further product information,
including spare parts and replacement components, please
contact the After Sales Department.
Telephone [phone]