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Installation and Operating Instructions
E
CHAPTER 3
INSTALLATION
NOTE
EC axial high-performance fans HQ.. EC / HRF.. EC / HW.. EC
3.0
Design
Series HQ.. EC ... / HW.. EC ...
The fan types HQ.. EC (Fig.7) / HW.. EC (Fig.8) consist of a mounting plate/ring with integrated inlet nozzles, an EC mo-
tor which is mounted to the protection guard (pursuant to DIN EN ISO 13857) and a dynamically balanced impeller ac-
cording to ISO 1940 T1, class G 6,3. The flow direction is via the motor inlet. With regard to EC types 250 A, 315 A,
355 A, the electrical connection to a separate terminal box (included in scope of delivery) is necessary. Directly to the
motor on the larger types.
Installation example:
HQ.. EC... for horizontal wall installation
HQ.. EC...
Series HRF.. EC...
The HRF..EC (Fig.9) consists of a flange pipe, an EC motor with mounting struts, a dynamically balanced impeller ac-
cording to ISO 1940 T1, class G 6,3 and a terminal box fixed to the pipe. A protection guard made of galvanised steel
wire pursuant to DIN EN ISO 13857 is available on request. The flow direction is via the motor outlet.
Installation example: EC high-performance fan HRF.. EC... with accessory parts
Mounting bracket MK
Inlet nozzle ASD-SGD
Protection
guard SG
Information on the accessories can be found on the internet, main catalogue and the sales documents.
The dimensions of the individual series can be found in chapter 5.
HW.. EC... for horizontal wall installation
Fig.7
Mounting
holes
High-perfor-
mance impeller
EC motor
Protection guard
Square moun-
ting plate with
integrated
nozzles
Terminal box
HW.. EC...
HRF EC...
10
Mounting
holes
High-perfor-
mance impeller
EC motor
Protection guard
Wall mounting
ring with nozzles
Terminal box
Vibration damper SDZ
for tensile loading
Protection guard SG
Counterflange FR
Flange flexible
Pipe sealing-
connector STS
cap RVS
Extension pipe VR (optional)
– required for motor protrusion –
Mounting bracket MK
Vibration damper SDD
for pressure load
Fig.8
Fig.9
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