1
Security
1.1 Correct use
VAV terminal units
VAV terminal units are designed for variable volume flow
control, restriction or shut-off in room air distribution and
ventilation systems within closed rooms.
Do not use VAV terminal units in extract air systems in
commercial kitchens unless the extract air has been
cleaned as much as possible with high-efficiency aer-
osol separators; see VDI 2052.
Only VAV terminal units with static pressure transmitters
are allowed to be used in ventilation systems with dust-
laden air.
Only VAV terminal units of the TVLK and TVRK types
are allowed to be used in ventilation systems with
chemical contamination (e.g. extract air from fume cup-
boards).
Incorrect use
WARNING!
Danger of injury or risk of damage to property
due to incorrect use!
Incorrect use of the VAV terminal unit can lead to
dangerous situations.
Do not use the VAV terminal unit:
–
in areas with potentially explosive atmospheres
–
in aircraft
–
outdoors without sufficient protection against the
effects of weather
–
in wet areas
–
for areas of application that are not described in
this manual
Modifying the unit or using replacement parts that have
not been approved by TROX is not permitted.
1.2 Safety signs
The following symbols and signs are usually found in
the work area. They apply to the very location where
they are found.
WARNING!
Danger due to illegible signage!
Over time, stickers and signs may fade or become
otherwise illegible, meaning that hazards cannot be
identified and necessary operating instructions
cannot be followed. There is then a risk of injury.
–
Ensure that all of the safety, warning and oper-
ating information is clearly legible.
–
Replace illegible signs or stickers immediately.
Electrical voltage
Only skilled qualified electricians are allowed to work in
areas marked as having electrical voltage.
Unauthorised persons must not enter areas, open cabi-
nets or work on components where an electrical voltage
is present and which are hence marked with this
symbol.
1.3 Residual risks
The VAV terminal unit is a state-of-the-art product and
meets current safety requirements. Residual risks
cannot be excluded, however, and you should proceed
with caution. This section describes the residual risks
that have been identified in a risk assessment.
Always observe the safety notes in this manual to
reduce health hazards and prevent any hazardous sit-
uations.
1.3.1 Electric shock hazards
Electric current
DANGER!
Danger of death due to electric current!
Danger of electric shock! Do not touch any live com-
ponents! Damaged insulation or damaged parts are
a life threatening hazard.
–
Have work on the electrical system carried out
only by skilled qualified electricians.
–
If the insulation is damaged, disconnect the
power supply immediately and have the insula-
tion repaired.
–
Before you start working on electric systems and
equipment, switch off the supply voltage and
secure it against being switched on accidentally.
Comply with the following safety rules:
–
Switch off the power supply.
–
Secure it against being switched on acciden-
tally.
–
Ensure that no voltage is present.
–
Connect to the earth; short circuit connection.
–
Do not bypass or disable any circuit breakers. Be
sure to maintain the correct current rating when
you replace a circuit breaker.
–
Ensure that live parts do not come into contact
with moisture. Moisture can cause a short circuit.
Security
Residual risks > Electric shock hazards
VAV terminal units VARYCONTROL
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