Nuaire Limited
Western Industrial Estate Caerphilly United Kingdom CF83 1NA
T: 029 2085 8400 F: 029 2085 8444 E: [email protected] W: www.nuaire.co.uk
1
Introduction
Units are rectangular in section and consist of three basic
designs.
Full size access panels are fitted to the top of the units and
are fully detachable for inspection and connection purposes.
The models are coded as follows:
EST-X (External/Internal Duct Mounted) in line unit.
EST-R (Roof Mounted, end inlet) side discharge unit.
EST-B (Roof Mounted bottom inlet) side discharge unit.
EST-X
units are rectangular in section and have circular rigid
spigots at each end.
EST-R
units are rectangular in section and are supplied with
a circular end spigot and two opposed side discharge grilles.
EST-B
units are rectangular in section and have a rectangular
bottom spigot and two opposed side discharge grilles.
Handling
Always handle the units carefully to avoid damage and
distortion. If mechanical aids are used to lift the unit, spreaders
should be employed and positioned so as to prevent the slings,
webbing etc. making contact with the casing.
Installation
Installers - please note that Installation must be carried
out by competent personnel in accordance with the
appropriate authority and conforming to all statutory and
governing regulations e.g. I.E.E, CIBSE, COHSE.
EST-X/R/B units are suitable for internal or external use.
All units can be installed at any angle up to 60
o
however,
on a
sloping roof the unit must be blowing upwards
toward the
roof ridge to ensure correct backdraught shutter operation.
Units should always be positioned with sufficient space to
allow removal of the access cover and subsequent removal
of fan and motor assemblies etc.
Whether internally or externally mounted, the method of fixing
to the roof is the responsibility of the installer.
All units have a bottom skirt to allow for fixing directly onto
a suitably sized curb or builders upstand. Nuaire can supply a
matching prefabricated curb for these units. Details of curbs
and dimensions for a suitable external concrete upstand are
shown on page 2.
Ductwork connections must be airtight to prevent any loss of
performance.
Table 1. EST-X Dimensions (mm)
Weight
Code
A
B
C
D dia.
(kg)
EST1-X
705
505
355
125
22
EST2-X
875
720
400
200
35
EST3-X
970
720
485
200
50
EST4-X
1165
980
575
250
72
EST5-X
1165
980
575
400
75
EST6-X
1165
980
575
400
86
EST9-X
1495
1125
710
500
162
Weight
Unit
A
B
C
D dia.
E
F
(kg)
EST1-R
705
505
355
125
-
-
22
EST1-B
705
505
355
-
76
152
22
EST2-R
875
720
400
200
-
-
35
EST2-B
875
720
400
-
127
229
35
EST3-R
970
720
485
200
-
-
45
EST3-B
970
720
485
-
127
229
45
EST4-R
1165
980
575
250
-
-
72
EST4-B
1165
980
575
-
152
305
72
EST5-R
1165
980
575
400
-
-
75
EST5-B
1165
980
575
-
229
457
75
EST6-R
1165
980
575
400
-
-
86
EST6-B
1165
980
575
-
229
457
86
EST9-R
1495
1125
710
500
-
-
162
EST9-B
1495
1125
710
-
304
762
162
External
Commissioning box
D
C
A
B
Removable
top panel
Control module
located internally
EST-X
EST-R & EST-B
A
B
Removable
top panel
Commissioning box
Opposed
outlet
grille
Circular inlet spigot
on end of unit
Code: EST*-R
D
E
F
Control module
located internally
C
Rectangular bottom
inlet spigot EST*- B only
16. 06. 15. Leaflet Number 671142
Figure 1. EST-X unit.
Figure 2. EST-R/B units.
ECOSMART TWINFANS
(EST-X/R/B)
1 phase, Direct Drive,
Run & Standby
For External,
Roof Mounted and Internal use
Installation and Maintenance
The EMC Directive
2014/30/EU
The Low Voltage
directive
2014/35/EU
Table 2. EST-R / B Dimensions (mm)
In High humidity applications above 90%
trickle ventilation is recommended.
