Schako WDAEX Series Guide

WDAEX
Technical documentation
Function and use | Areas of application
SCHAKO KG Phone [phone]
Steigstrasse 25-27 Fax [phone]
D-78600 Kolbingen schako.com | [email protected]
Contents
Function and use ........................................................ 2
Areas of application.................................................... 2
Models........................................................................ 3
Processing................................................................... 3
Accessories ................................................................. 3
Dimensions................................................................. 4
Dimensions of accessories.......................................... 5
Prior to assembly and commissioning........................ 7
Installation information.............................................. 7
Danger due to impermissible use............................... 7
Equipotential bonding ................................................ 7
Maintenance and service ........................................... 7
Order code - Long throw nozzle ................................. 8
Specification text........................................................ 9
Type plate................................................................. 10
Certificate of conformity .......................................... 11
TECHNICAL DOCUMENTATION
WDAEX
Long throw nozzle

WDAEX
Technical documentation
Function and use | Areas of application
Construction subject to change
No return possible Version: 2023-03-15 | Page 2
FUNCTION AND USE
Long throw nozzle with ATEX homologation for horizontal and
vertical air supply in large rooms such as theatres, concert halls
et production halls. The WDAEX nozzle geometry allows a high
blow velocity resulting in correspondingly long throw distance
at low sound power level. The accessory swivel head allows you
to move the nozzle by up to approx. 30 degrees in all direc-
tions. This does not affect the sound power level or pressure
loss.
Attention: Please note that for size 400, the connection spigot
of the long throw nozzle must be fitted on site. The installation
of WDAEX into spiral ducts must take place free of stress. Avoid
using unround or deformed spiral ducts, in order to protect the
nozzles from distortion.
PERFORMANCE DATA
- Operating temperature: 0 - 60° C
- Ambient temperature: 0 - 60°C
- Volumetric flow range: 20 to 8000 m³/h
SPECIAL FEATURES
- ATEX marking and certification
- compact dimensions (up to NW 400 mm)
- low pressure loss
Tests and standards
- DIN EN 16798 (2017): Ventilation of non-residential buildings
Directives and certificates
- 2014/34 EU ATEX (product directive)
AREAS OF APPLICATION
•for supply air systems
•for hazardous areas of zones 1, 2, 21 and 22
•also for explosion group llC in zones 1 and 2 (gases)
•at ambient temperatures 0 - 60°C, 5...95% rH, non-con-
densing
The long throw nozzle WDAEX is suitable for use in processed
supply air. The SCHAKO WDAEX has been approved for all gases
in zone 1 and 2 as well as for dusts in zone 21 and 22. The
SCHAKO WDAEX can also be used in zones 1 and 2 of the explo-
sion group IIC.
When connecting SCHAKO components to customer installati-
ons, any compatibility problems should be previously checked
and solved on-site.
Additional information for defining explosion protection
(Hazardous zone 1 = Gases / Hazardous zone 2 = Dusts)
Device group II: Use in the remaining hazardous areas, subdivi-
ded into categories:
--- Category 2 - occasional hazard for Zones 1 and 21
--- Category 3 - rare / brief hazard for Zone 2 and Zone 22

WDAEX
Technical documentation
Models | Accessories
Construction subject to change
No return possible Version: 2023-03-15 | Page 3
MODELS
WDAEX-N-…Nozzle without installation components (not
available with -SK swivel head)
WDAEX-F-…for flexible duct connection (not possible for
NW400)
WDAEX-W-…for spiral duct connection
WDAEX-D-…for ceiling and wall installation (not possible
for NW 400)
WDAEX-R-…for duct connection (using saddle bracket,
not possible for NW400)
WDAEX-…-SK-…with swivel head
PROCESSING
Nozzle part
-- Aluminium painted to:
- RAL 9010 (white) (-9010, standard).
Cover plate
-- Painted sheet steel:
- RAL 9010 (white) (-9010, standard).
Connection spigot
-- Painted sheet steel:
- RAL 9010 (white) (-9010, standard).
-- Galvanised sheet steel (only for WDAEX-D/-W).
Mounting ring
-- Painted sheet steel:
- RAL 9010 (white) (-9010, standard).
Saddle bracket (only WDAEX-R-…)
-- Painted sheet steel:
- RAL 9010 (white) (-9010, standard).
ACCESSORIES
Swivel head (-SK)
-- with swivel head (-SK):
- Aluminium painted to:
- RAL 9010 (white) (-9010, standard).
Cover plate (-BN / -BR)
-- without cover plate (-BN).
-- with cover plate (-BR):
- made of painted aluminium:
- RAL 9010 (white) (-9010, standard).

WDAEX
Technical documentation
Dimensions | Accessories
Construction subject to change
No return possible Version: 2023-03-15 | Page 4
DIMENSIONS
WDAEX-N-…
WDAEX-F-… (not possible for NW 400)
WDAEX-W-…
WDAEX-D-… (not possible for NW 400)
WDAEX-R-… (not possible for NW 400)
Available sizes
NW
ød
øA
øE
øF
øG
øK
a
L
t
P1
øD1
øD
L1
100
100
250
215
198
208
230
12
58
15
82
181-800*
185
43
125
125
450
415
398
408
430
12
189
15
175
356 -
800*
360
174
160
160
207
195
192
175
175
165
153
150
200
200
96
84
81
400
400
845
800
752
808
815
20
338
20
-
-
727
318
* Larger diameters are also available upon request!
1.) 3x indentation for slotted shallow-raised countersunk-head tapping screw DIN ISO 7051 pitch 3.9 (6x for NW 400)
Nozzle without add-on parts
(not available with swivel
head)
inside
approx.

WDAEX
Technical documentation
Dimensions of accessories |
Construction subject to change
No return possible Version: 2023-03-15 | Page 5
DIMENSIONS OF ACCESSORIES
Swivel head (-SK)
The adjustment of the nozzle can be done manually
WDAEX-D-...-SK-… (not possible for NW 400)
WDAEX-W-…-SK-…
WDAEX-R-...-SK-… (not possible for NW 400)
Available size
NW
ød
øA
øE
øF
øG
øK
a
α
P
H
H1
M
øB
z
øD2
100
100
250
215
198
208
230
12
20
27
131
170
118
197
74
200 - 1200*
125
125
450
415
398
408
430
12
30
86
201
241
163
398
155
400 - 1200*
160
160
28
108
175
175
64
200
200
22
56
400
400
845
800
-
808
-
20
20
111
336,5
375
-
793
240
-
* Larger diameters are also available upon request!
1.) 3 x indentation for slotted shallow-raised countersunk-
head tapping screw DIN ISO 7051 pitch 3.9
inside

WDAEX
Technical documentation
Dimensions of accessories |
Construction subject to change
No return possible Version: 2023-03-15 | Page 6
Cover plate (-BR, concealed mounting, only available
for NW 100–200)
Available sizes -BR
NW
WDAEX-D-…-S0/SK-…-
WDAEX-F/W/R-…
WDAEX-W/R-…-SK-…-
WDAEX-F/D/K-…-
S0/SK
WDAEX-W/R-…-S0-...
øC
b
øC
b
øC
b
øC
b
øC
b
100
253
34
211
29
211
28
-
-
-
-
125 - 200
-
-
-
-
-
-
452
49
412
40

WDAEX
Technical documentation
Prior to assembly and commissioning | Equipotential bonding
Construction subject to change
No return possible Version: 2023-03-15 | Page 7
PRIOR TO ASSEMBLY AND COMMISSIONING
An instruction leaflet con-
taining information on sa-
fety, transport disposal, in-
stallation, commissioning
and maintenance is en-
closed with each SCHAKO
product. For safety reasons,
this instruction leaflet must
be read under all circum-
stances and completely ad-
hered to
Marking
The product has the following ATEX marking:
EPS 18 ATEX 2 052 U II 2G Ex h IIB Gb
II 2D Ex h IIIC Db
INSTALLATION INFORMATION
The devices have been designed for use in areas subject to
explosion hazards.
These devices are not suitable for use in non-approved Ex zo-
nes. The operating safety of the devices is only guaranteed
when used in accordance with their designated use.
Installation Instructions
- Current laws and regulations must be adhered to.
- Avoid any dust deposit on the module.
- Avoid electrostatic charges, only clean the device with a
moist cloth.
Designated use
The long range nozzles shall not be used in air polluted by
dust; in dust explosion zones, the long range nozzles must be
cleaned on a regular basis.
The components have been designed for use in ventilation
systems in areas subject to explosion hazards according to
the ATEX marking "Device group II, Zones 1, 2 and 21, 22.
Information on installation and commissioning:
It must be ensured that all metal components are properly
and permanently connected to the ground potential.
For nozzles with RAL coating, it must be ensured that proces-
ses generating high loads are excluded.
Disposal
The devices have been prepared in accordance with the RoHS
directive restricting the use of certain hazardous substances
in electrical and electronic equipment (2002/95/EC).
Type of ignition protection
The type of ignition protection of the long throw nozzle is gu-
aranteed by its safe design.
Quality reliability
The SCHAKO production facilities are certified according to
the QM procedure EN ISO 9001.
DANGER DUE TO IMPERMISSIBLE USE
The long range nozzles shall not be used:
- in non-approved explosion zones
- in aggressive air
- outdoor without an adequate protection against weather
effects
- in case of modifications made to the long throw nozzle
- in fields of application not specified in the documentation
EQUIPOTENTIAL BONDING
The long throw nozzle must be connected by a skilled electri-
cian to the local potential bonding.
MAINTENANCE AND SERVICE
Assembly and maintenance instructions
Prior to being installed in the ventilation system, the long
throw nozzle WDAEX must be checked for damage. Damaged
fire dampers must not be installed. The device may only be
used in accordance with its designated use in air ventilation
systems. Use only approved fastening material for mounting.
No additional parts must be fastened to the diffuser. The long
throw nozzle must be connected to the ventilation duct net-
work in electrically conducting manner. In order to avoid ha-
zards due to electrostatic charges, the WDAEX must be
connected to the grounding connection provided for this pur-
pose. Make sure that the ventilation systems are not subjec-
ted to any anomalous operating conditions, such as vibrati-
ons, pressure surges or high proportions of solids in the me-
dium. If required, the electrical connection diagrams can be
found in the respective SCHAKO additional information.
Electrical wiring and commissioning work must be performed
by skilled personnel only.
Information regarding maintenance and inspection
Proper maintenance increases operational safety and the ser-
vice life of the device. This is why the devices should be sub-
jected to regular inspection. If inspection dates are prescribed
by law, they must be complied with. The operating personnel
must be informed, prior to starting maintenance and inspec-
tion work. The personal safety measures must be looked up
in the safety data sheet. Hazard caused by contact or inhaling
hazardous substances must be excluded by taking appropri-
ate safety measures.
Prior to maintenance or inspection, all system components
up- and downstream of the device must be switched off and
secured against being switched on again.
The following maintenance and inspection criteria
must be observed:
- The air diffusers must be cleaned as required or at the defi-
ned cleaning intervals. There must be no dust deposits on
the air diffusers.
- Visual inspection of the device
- Check the fastening of the device
- Check the grounding connection for tight fit and good
contact
- Functional check
- For additional inspections, please refer to the technical
documentation or additional maintenance instructions

WDAEX
Technical documentation
Order code - Long throw nozzle |
Construction subject to change
No return possible Version: 2023-03-15 | Page 8
ORDER CODE - LONG THROW NOZZLE
01
02
03
04
05
06
07
Type
Model
Nominal size
Swivel head
Paint
Cover plate
Duct diameter for saddle bracket design
Exa-
mple
WDAEX
-W
-125
-SK
-9010
-BN
-0000
Sample
WDA-W-125-SK-9010-BN-0000
Long throw nozzle type WDAEX | spiral duct connection | size 125 | with swivel head | RAL 9010 white | without cover plate | no
saddle bracket design
ORDER DETAILS
01 - Type
WDAEX= Long throw nozzle type WDAEX
02 - Model
N = only nozzle
F = for flexible duct connection (not possible for
NW400)
W = for spiral duct connection
D = for ceiling and wall installation (not possible for
NW 400)
R = for duct connection with saddle bracket (not pos-
sible for NW400)
03 - Nominal size
100 = Nozzle opening 100 mm
125 = Nozzle opening 125 mm
160 = Nozzle opening 160 mm
175 = Nozzle opening 175 mm
200 = Nozzle opening 200 mm
400 = Nozzle opening 400 mm
04 - Swivel head
SO = without swivel head (standard)
SK = with swivel head
05 - Paint
9010 = RAL colour 9010 (white, standard)
06 - Cover plate
BN = Without cover plate / without flange ring
(standard)
BR = with cover plate (not possible for NW400)
07 - Duct diameter for saddle bracket design
0000 = no saddle bracket design
xxx = Diameter for connection pipe given in mm with 4
digits for saddle bracket design WDAEX-R

WDAEX
Technical documentation
Specification text I
Construction subject to change
No return possible Version: 2023-03-15 | Page 9
SPECIFICATION TEXT
Long throw nozzle with ATEX homologation for air-conditio-
ning of large and high rooms, such as halls, theatres or con-
cert halls. The cone-shaped body of the nozzle increases air
velocity ensuring a stable core jet. This results in very long
throws. The dynamic internal construction of the jet nozzle
allows a very high exit velocity at low noise levels and high
induction. The technical data is secured and guaranteed by
measurements and documentation in SCHAKO's own fluid
dynamics and acoustics laboratory. Suitable for cooling and
heating modes. A wide range of connection and installation
options such as wall, ceiling, duct or pipes. Consists of the
nozzle part made of aluminium painted with a high-quality
powder coating to RAL colour 9010, white (standard). Sui-
table for use in VAV systems.
Product: SCHAKO type WDAEX-N-…
- for flexible duct connection, with mounting ring and
connection spigot for saddle bracket (not possible for NW
400)
Product: SCHAKO type WDAEX-F-…
- For spiral duct connection, with mounting ring and
connection spigot
Product: SCHAKO type WDAEX-W-…
- for ceiling / wall mounting, with mounting ring and
connection spigot for saddle bracket (not possible for NW
400)
Product: SCHAKO type WDAEX-D-…
- For duct connection, using saddle bracket (NW400 not
possible)
Product: SCHAKO type WDAEX-R-…
Accessories:
Swivel head (-S0 / -SK)
- without swivel head (-S0)
- with swivel head (-SK):
- Aluminium painted to:
- RAL 9010 (white) (-9010, standard)
Cover plate (-BN / -BR)
- without cover plate (-BN)
- with cover plate (-BR):
- made of painted aluminium:
- RAL 9010 (white) (-9010, standard)

WDAEX
Technical documentation
Type plate I
Construction subject to change
No return possible Version: 2023-03-15 | Page 10
TYPE PLATE

WDAEX
Technical documentation
Certificate of conformity I
Construction subject to change
No return possible Version: 2023-03-15 | Page 11
CERTIFICATE OF CONFORMITY

WDAEX
Technical documentation
Certificate of conformity I
Construction subject to change
No return possible Version: 2023-03-15 | Page 12