5.4 Fan connection
5.4.1
Control module type CTE.. for ETAvent-fans
The connection of ETAvent-fans depends on the version. For an inverted control (10 - 0 V, 100 - 0 %
PWM) an accordant programming at the base menu is necessary (
IO Setup ).
fan type:
Colour
Terminal
Parallel operation
ETAvent PWM (0 - 100 % / 100 -
0 % )
Connection diagram
grey
PWM
max. up to
3 fans
at one output
pink
24 V
White
D3
Green
D3
ETAvent (0 - 10 V / 10 - 0 V)
Connection diagram
grey
GND
max. up to
100 fans
at one out-
put
pink
A1
White
D3
Green
D3
Information
For use of ETAvent fans (version 0 - 10 V / 10 - 0 V) in central exhaust air installations the controller
output 1(terminals A1 / GND) is usedfor the exhaust air damper. The ETAvent is then connectedto a
controller output which has to be programmed(
Installation - IO Setup).
5.4.2
Voltage controllers type PTE.. for 1~ fans
The motor is connectedat terminals U1 andU2. Several motors can be connectedto the device.
Attention!
The maximum total control current (speci
ed for electronic voltage regulation) for all motors
may not exceed the device
’
s rated current.
If the maximum control current for electronic voltage regulation is not known, a supplementary
20 % of the rated motor current must be allowed for.
When controlling motors from other manufacturers, the controllability and the maximum
current for electronic voltage regulation should be requested from the manufacturer.
Information
•
It is recommended that a separate motor protection unit be foreseen for each fan.
•
For motors with thermistors
“
TB
”
e.g. type S-ET10.
5.4.2.1
Running noise
When controlling ventilators using electronic voltage regulators, motor noise can occur (due to the
system), which can be troublesome (Phase cutting = series
“
P...
”
).
On fast running ventilators with a high level of air noise, this noise is relatively low. On slow running
ventilators with a low level of air noise, this noise may be dominant in the lower speed range due to
the occurrence of resonance.
For systems where noise is critical, we recommendusing our ETAvent fans in combination with
ventilation computer without power stage type CTE/AH(X)-L.
Operating Instructions
UNIcon / Acontrol
Electrical installation
L-BAL-E051-GB 1035 Index 003
Part.-No. 00163311-GB
11/83