6
Conditions for Handling
e device can only be commissioned, operated and serviced
by qualified personnel.
ne VCS control unit can only be operated by person-
nel provably trained and warned about possible dangers
(by the manufacturer or authorized representative of the
manufacturer) in accordance with the applicable Service
Regulations for the air-handling unit.
nIt is forbidden to remove, bypass or disconnect the safe-
ty equipment, safety functions and guards.
nOnly air-handling components in perfect condition can be
used. Failures affecting the equipment safety must be re-
moved immediately.
nAll safety measures against electrical accidents must be
strictly observed. Any action resulting in restriction, even
temporary, of the safety and protection functions must
be avoided.
nIt is strictly forbidden to remove safety guards, casings
or other safeguards, operate the equipment or its com-
ponents if the safeguards are disabled or restricted.
nAny action resulting in restriction of the prescribed insu-
lation of the safety voltage must be avoided.
nWhen changing fuses, it is necessary to ensure the non-
voltage state of the control unit and use only the speci-
fied fuses and protection elements.
nIt is necessary to eliminate electromagnetic interference
and the harmful effects of over-voltage on the signal,
control and power cables, which could unintentionally ini-
tiate dangerous actions and functions or cause destruc-
tion of the electronic parts in individual components.
nNever work on the connected equipment under voltage!
Before starting work on the air-handling unit, switch off
and lock the master switch to disconnect the supply volt-
age. Use protective and work aids in accordance with
the Service Regulations and standards applicable in the
country where the unit is installed.
nIf individual technical assemblies of the air-handling unit
are equipped with service switches, and if allowed by the
Service Regulations, installation conditions and charac-
teristics, then such assembly (e.g. heater, fan, etc.) can
be disconnected by switching off and locking the corre-
sponding service switch.
nNever use abrasive cleaners, cleaners unsuitable for plas-
tics or acid or alkaline solutions to clean to unit.
nAvoid splashing water, impacts and vibrations.
Each air-handling equipment component must always
be installed in accordance with the appropriate installa-
tion instructions.
e manufacturer recommends fully ensuring the flaw-
less condition and functioning of all protective elements
and equipment. Aer failures, such as short circuits, have
been removed, check the functionality of the automatic
circuit breakers and protective elements, and verify the
condition of the protective wiring interconnection and
grounding.
To ensure safe operation, it is necessary to verify the con-
ditions of the water heating/cooling pumps – perform
manual pump turning and set the output curve (over-de-
sign impairs the control quality).
Warning: If the remote control is used (including automatic
schedule program), safety access must be ensured for each
physical interference or entry into the air-handling unit (inspec-
tion, maintenance or repair) – i.e. disconnect the power supply
by turning off the switch – avoid remote initiation of the unit
by other users when work is being performed on the unit.
Transport and Storage
Before Installation
VCS control units are packed in cardboard boxes or installed
in the corresponding air-handling unit section, if they are
integrated into the air-handling unit. Measures for handling
fragile goods must be taken when handling the unit.
e units must be stored in rooms complying with the fol-
lowing conditions:
nMaximum relative air humidity must not exceed 85%,
without water condensation
nAmbient temperature between –25°C and +60°C
Dust, water, caustics, corrosive agents or other materials
negatively affecting the structure or the unit’s components
(causing degradation of plastic parts and insulation) must
not enter the unit.
Installation and Location
e VCS control unit location must provide good access for
the operating personnel and easy connection of the cables.
e installation site must be flat without rough spots.
When planning the air-handling unit location, it is necessary to
keep sufficient space for maintenance, service and operating.
Check the completeness and intactness of the delivery in ac-
cordance with the bill of delivery before installation.
ese control units are designed for normal (indoor, dustless,
dry, non-explosive) environments. ey can be mounted on
A and B combustibility grade materials in accordance with
EN 13501-1.
Permissible ambient temperature: +0 °C to +40 °C (24h aver-
age must not exceed +35 °C)
e VCS control units in the switchboard boxes are mounted
in the vertical position directly on the wall. e KAEDRA plastic
switchboard box can also be partially embedded under plaster.
e VCS unit installed in steel switchboard boxes can also be
placed directly on the floor. e cables can be run along cable
trenches, cable trays or under plaster.
e power cables are connected from below.
We recommend the wall-mounted units be fixed to the wall
using dowels and screws suitable for the wall structure.
Manipulace, transport, umístění
ne air-handling equipment can only be operated in ac-
cordance with the applicable Service Regulations. e
operating staff must comply with the requirements in-
cluded in the Service Regulations, respectively with the
manufacturer's requirements (authorisation for some
service activities).
nTo avoid unintentional unit start-up, the master switch
must be switched off and locked when repairing the
VCS unit.
