NuAire EST 19H-R Installation And Maintenance Manual

EST-X
Removable top panel
C
Commissioning
box
A
Figure 1. EST*-X Plantroom/roof mounted in line unit.
Table 1. Dimensions (mm)
Unit A
EST 19H-X
1430
EST 20H-X
2030
EST-R
A
Removable
top panel
C
Opposed outlet grilles External
commissioning box.
Figure 2. EST*-R Roof mounted end inlet, side discharge unit.
Table 2. Dimensions (mm)
Unit
EST 19H-R
1430

Introduction

The Nuaire EST Twinfan Belt Drive range consists of the
following units
EST-X (Duct Mounted, Plantroom/Roof) in line unit.
EST-R (Roof Mounted, end inlet) side discharge unit*.
EST-B (Roof Mounted bottom inlet) side discharge unit*.
Units are rectangular in section. The casing is manufactured
from heavy gauge 'Aluzinc' aluminium-zinc coated mild steel.
A full size internally lined access panel is fitted to the top face
and this panel is fully detachable for inspection purposes.
The motor plate and frames are supported on the base by
resilient mountings allowing the fan unit to be operated without
the need for separate anti vibration fan case mountings.
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
EST 19H & 20H
3ph Run & Standby, Roof &
Plantroom Twinfans
Installation And Maintenance
E
50mm
D dia
F
Circular spigots
size EST19H)
B
Rectangular spigots
size EST20H)
For unit weights see page 4
B C D dia E
840
1635 630 -
2313 1183 - 1200
B
D dia
Control module
located internally
For unit weights see page 4
A B C D dia
840
1635 630
Suitable for operation in ambient temperatures up to 40

Handling

Always handle the units carefully to avoid damage and distortion.
Eyebolts are provided on all units for lifting purposes.
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.
EST-B
F
-
700
C
Opposed outlet grilles
Figure 3. Bottom inlet unit.
Table 3. Dimensions (mm)
Unit
EST 19H-B
EST-B/R larger units
Commissioning box
C
F
Figure 4. Bottom inlet unit.
Table 4. Dimensions (mm)
Unit
EST 20H-B
EST 20H-R
1
The EMC Directive
2014/30/EU
The Low Voltage
Directive
2014/35/EU
Commissioning box
B
A
Removable
top panel
Bottom inlet
Control module
F
E
located internally
For unit weights see page 4
A B C
840
1430 1635 889
* larger units have end discharge
End inlet rectangular spigot Code: EST*-R
B
A
E
Bottom rectangular inlet
F
E spigot Code: EST*-B
For unit weights see page 4
A B C
2030 2313 1183 1200
2030 2313 1183 1200
28. 06. 17. Leaflet Number 671845
o C.
Rect Spigot
E F
381
Louvred
end outlet
Rect Spigot
E F
700
700