Nuaire Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NA
T: 029 2085 8400 F: 029 2085 8444 E: info@nuaire.co.uk W: www.nuaire.co.uk
Fig. 1 View of a typical unit.
ESTCP-R & ESXCP-R, ESTCP-B, & ESXCP-B
Fig. 2 View of a typical unit.
Introduction
The Nuaire range of constant pressure direct drive external
units consists of single and twinfan models with duties up
to a maximum of 1.5m
3
/s. Twinfan units incorporate
run/standby and auto changeover features whereas the
single fan units have one fan only. Coding is as follows:
ESTCP-X and ESXCP-X are ‘in-line’ units supplied with rigid
circular spigots at each end and are suited to external and
internal duct mounted applications.
ESTCP-R and ESXCP-R are supplied with rigid circular inlet
spigot and two opposed side discharge spigots, suited to
external roof mounted applications.
ESTCP-B and ESXCP-B are supplied with rigid circular inlet
spigot and two opposed side discharge spigots, suited to
external roof mounted applications.
Casings are manufactured from heavy gauge ‘Aluzinc’
aluminium and zinc coated mild steel. Full size access panels
are fitted to the top of the units. These panels are fully
detachable for inspection and connection purposes. The units
incorporate two independent motors with high efficiency,
centrifugal impellers running in metal scrolls.
The motors are manufactured to BS 5000 and are suitable
for single phase supply. Airflow and failure monitors are
standard as is Class B insulation. The units are suitable for
operation in ambient temperatures up to 40
o
C.
Handling
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
The installation must be carried out by competent
personnel in accordance with the appropriate authority
and conforming to all statutory and governing regulations.
The 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 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.
All units have an internal connection box requiring connection
to the mains supply on installation. It is the installers
responsibility to drill the case to provide access for the
electrical cables. Care should be taken not to damage internal
components and the cable entry should be properly sealed.
External
Commissioning box
D
C
A
B
Removable
top panel
Control module
located internally
Weight (kg)
Unit AB CD dia. EST ESX
ESTCP4-X 1165 980 575 250 85 -
ESTCP6-X/ESXCP6-X 1165 980 575 400 86 70
ESTCP9-X/ESXCP9-X 1495 1125 710 500 162 133
Table 1. Dimensions (mm)
Weight (kg)
Unit AB CD dia. EFEST ESX
ESTCP4-R 1165 980 575 250 --85 -
ESTCP4-B 1165 980 575 - 152 305 85 -
ESTCP6-R/ESXCP6-R 1165 980 575 400 --86 70
ESTCP6-B/ESXCP6-B 1165 980 575 - 229 457 86 70
ESTCP9-R/ESXCP9-R 1495 1125 710 500 --162 133
ESTCP9-B/ESXCP9-B 1495 1125 710 - 304 762 162 133
A
B
Removable
top panel
Commissioning box
Opposed
outlet
grille
Circular inlet
spigot on end
of unit
Code: ESTCP*-R
D
E
F
Control module
located internally
C
Rectangular
bottom inlet spigot
ESTCP*- B only
Table 2. Dimensions (mm)
ESTCP-X & ESXCP-X
1
21. 10. 16. Leaflet Number 671171
Constant Pressure, Single phase,
Direct Drive Single & Twinfan Units
For external use only
Installation and
Maintenance
The EMC Directive
2014/30/EU
The Low Voltage
directive
2014/35/EU
Models
ESTCP & ESXCP
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