NOTICE!
Risk of damage to property due to electro-
static charge
Electrostatic charge can damage the electronics.
–
Avoid skin contact with any components or
printed circuits.
–
Touch an equipotentially bonded metal sur-
face before you touch any printed circuit
boards.
–
Wear conductive footwear and antistatic
clothing.
NOTICE!
In an emergency
Immediately disconnect the power supply to the
controller. Emergencies include, for example, a
damaged mains cable, a damaged casing, the
ingress of a liquid or foreign matter, a smell or
smoke.
Have the device checked by the manufacturer
before you put it into operation again.
Correct use
Only use the device for its intended correct use and
in compliance with the safety precautions and infor-
mation in this manual in order to avoid danger to
persons and property.
The correct use of this device encompasses:
The electronic control of volume flow rates for
supply or extract air and for fume cupboards in
combination with a TROX air terminal unit.
Indoor use for ventilation and air conditioning
systems, especially for laboratories.
The controller is typically used in a group of
several controllers for complete room control,
but it may also be used as a single controller.
For error-free operation, the installation orien-
tation of the controller must be observed; pos-
sible installation orientations are indicated on
the installation orientation label on the device.
Incorrect use
Do not use the controller in an installation orienta-
tion or for areas of application that are not
described in this manual.
Do not use the controller outdoors, in wet areas, or
in areas with potentially explosive atmospheres.
Residual risks
Power failure
If the power fails, the damper blade of the VAV ter-
minal unit remains in the position at that time; the
controller will resume operation once power returns.
For safety related applications you may use expan-
sion module EM-TRF-USV, which ensures uninter-
ruptible power supply. If the emergency power unit
has been correctly connected and charged, it will
supply power for the set operating times (
Ä
Tech-
nical Data for EM-TRF-USV).
Monitoring function
Alarm signal in the event of insufficient volume
flow rate,
Alarm signal in the event of insufficient room
pressure,
Alarm signal in the event of volume flow rate in
shut-off position,
For safety related applications you should check
whether then safety measures are required, such
as alarms. You may use the alarm relay for
switching operations.
Safety and correct use
EASYLAB controller Serie TCU3
7
