Functional Test; Switching The Direction Of Rotation - Trox Control component Easy Installation And Commissioning Instructions

6.2 Functional test

Personnel:
Skilled qualified electrician

HVAC technician

To perform a functional test, the Easy controller has a
test push button, the operating states are displayed on
Ä Chapter 3 'Structure and functional
the LED screen,
description' on page 10
To check the function of the VAV terminal unit, check the
position of the damper blade on the damper blade shaft
(marked), Ä Chapter 3.3 'Position of the damper blade'
on page 12.
Preparation:
Switch on the power supply.

Switch on air conditioning system.

1. Press the test push button for approx. 1 second.
ð Test function is started.
Actuator moves the damper blade to the

CLOSED position.
Actuator moves the damper blade to the

OPEN position.
Actuator moves the damper blade back to

the control position.
When the set volume flow rate is reached,

the LED lights up solidly.
2. Override control V
min
ð Logging actual value signal U
3. Override control V
max
ð Logging actual value signal U

6.3 Switching the direction of rotation

Personnel:
TROX Technical Service

Attention: only for service personnel – release by
untrained personnel endangers the control function!
With volume flow rate deviations, an incorrect effect of
actuator action (direction of rotation) of the controller
could be the cause.
Test:
1. To test, disconnect the setpoint signal at terminal
(w) and set the V
min
ð If the actuator then moves the damper blade
to the OPEN position, the direction of rotation
is set incorrectly.
Rotation direction reversal (not for TVE type):
2. Set V and V potentiometers to 100% each.
min max
3. Press the test push button (at least 4 s).
on the master controller.
on the master controller.
potentiometer to 0%.
Control component Easy for VAV terminal units
Commissioning and operation
Switching the direction of rotation
ð The direction of rotation reversal is signalled
by the LED flashing briefly.
The actuator then performs a synchronisation
(slow flashing) and then returns to normal
operation.
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