NuAire Ecosmart NRG Installation And Maintenance

Introduction

The motorised damper is manufactured from ABS plastic
and designed for installation with NUAIRE's range of
Ecosmart Constant Pressure Variable Volume extract fans.
The NRG incorporates a damper that is motorised upon
activation/deactivation of the integral PIR.
Principle features are:
■ Integrated PIR with pre set nominal fifteen minute
overrun timer
■ 12V operating via a 12/230V transformer supplied
as standard.
■ The damper is 'pegged' so as to prevent full closure,
thereby ensuring continuous trickle ventilation when
the constant pressure fan is operating
■ There are four fully open positions to be manually
set at the required boost ventilation rate at
commissioning stage.

Handling

Handle the unit with care to avoid damage and distortion to
moving parts.

Installation

The installation must be carried out by suitably qualified
and competent personnel in accordance with appropriate
authority and in conformance with all statutory and
governing regulations i.e. IEE CIBSE COHSE HVCA etc.
Figure 1. Dimensional Detail
Nuaire: A Trading Division of Polypipe Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NA
T: 029 2088 5911 F: 029 2088 7033 E: info@nuaire.co.uk W: www.nuaire.co.uk
Constant Pressure
Motorised Grille Damper
Type NRG
Installation and Maintenance
1

Mechanical Installation

The grille is suitable for internal installation only, mounting
in any attitude and can be installed within the splash zone.
The grille has a 125mm diameter discharge spigot and is a
'push fit' to corresponding ductwork, its held in position
by the compression seal attached to the spigot.
Before offering to the ductwork complete the electrical
connection.
Figure 2. Performance Detail

Acoustic Information

Lw Position 1 Position 2
70Pa 25.1 21.6
100Pa 30 30.3
130Pa 33.5 32.8
150Pa 37.1 37.3

Electrical Installation

Position the transformer in the ceiling or service void
allowing for future access, connect to a 230V supply via a
spur fused at 1A. Connect the 12V transformer output to the
connection leads of the grille.
Figure 3. Wiring detail
Connector Block (by others)
Figure 4. Transformer dimensions
The EMC Directive
2014/30/EU
The Low Voltage
directive
2014/35/EU
Position 3 Position 4
- 23
32.2 33.3
36 37.1
- 38.6
15. 05. 17. Leaflet Number 671279