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
HW.. EC... for horizontal wall installation
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
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.
10
EC axial high-performance fans HQ.. EC / HRF.. EC / HW.. EC
Installation and Operating Instructions
CHAPTER 3
INSTALLATION
NOTE
E
Protection
guard SG
Inlet nozzle ASD-SGD
Pipe sealing-
cap RVS
Counterflange FR
Protection guard SG
Flange flexible
connector STS
Fig.9
Vibration damper SDD
for pressure load
Mounting bracket MK
Mounting bracket MK
Vibration damper SDZ
for tensile loading
HRF EC...
Extension pipe VR (optional)
– required for motor protrusion –
Fig.7
Protection guard
Square moun-
ting plate with
integrated
nozzles
High-perfor-
mance impeller
Fig.8
HQ.. EC...
EC motor
Terminal box
HW.. EC...
Protection guard
High-perfor-
mance impeller
EC motor
Terminal box
Wall mounting
ring with nozzles
Mounting
holes
Mounting
holes