8
RL-61, 61L EN.033 24.01Seibu Giken DST
EN
Attention! The air ducts must be vibration-free and sizable enough to
prevent pressure build-up when conveying the incoming and outgoing air
from the unit.
Attention! The incoming and outgoing outlets on the machine are not
designed to bear any weight from the air ducts system.
Attention! The wet air outlet duct must be insulated to prevent condensate
and ice build-up in cold conditions.
1.8 ELECTRICAL INSTALLATION
Attention! Wherever possible, all electrical work must be carried out with
the electric supply switched o. It is recommended that electrical isolators
be locked in the o position. All electrical work must be carried out by a
qualied person or under the supervision of a qualied person.
A qualied person (electrician) is dened in this manual as:
• an electrical technician or engineer qualied to service and maintain air
conditioning plants
• has completed the appropriate health and safety training
• has read and is familiar with the contents of this manual.
Danger! If the unit control panel isolation switch is o, the incoming cable
terminals may still be live!
Danger! If working on the unit’s isolation switch, ensure that the electrical
power is isolated and locked to prevent accidental resetting.
Danger! Electrical connections are to be made in accordance with local
regulations.
Attention! Check that the incoming electrical supply conforms to the
electrical wiring diagram and the manufacturer’s type plate attached to
the unit.
Caution!! Loose terminal connections! Due to vibration during
transportation it is advised that electrical terminals be checked for security
and retightened where necessary. The following connecting terminals in the
electrical control cabinet should be checked periodically and retightened if
necessary:
• connecting terminals in the main isolator switch
• connecting terminals in main components of the heater circuits
• connecting terminals in main components of the fan circuits
Periodically as dened in this manual means:
• during installation
• during maintenance
Caution! Parameters used in the electrical protection and alarm circuits
must not be modied or adjusted. Factory (default) parameters are shown
in the electrical wiring diagrams, technical data or parameter list.
Warning! This equipment will contain high voltage electrical components!
1.9 COMMISSIONING
Attention! Equipment fans can produce noise levels above 80 dB (A). Use
ear protection if someone are near an operating machine for any length of
time.
1.10 OPERATION
Caution! Use the normal shut-down procedure in the operating chapter.
If switching the unit off in an EMERGENCY, the main isolator switch or
emergency stop button may be used. However, residual heat from the
heater elements will remain in the unit and this can result in damage to
components close to the heater.
Caution! On no account should the unit be operated without air filters
installed!
Caution! Do not expose the unit to an ambient temperature that exceeds
50 °C/122 °F (e.g inside a plant room) for a long period of time. This may
damage the internal components!
Caution! Do not process air at a temperature higher than 40°C/104°F. This
may damage the internal components!
1.11 MAINTENANCE
Caution! Defective electrical components and defective wiring must be
replaced immediately. The equipment must not be operated until the defect
has been repaired and the unit has been retested.
Caution! For maintenance purposes, use the normal shut-down procedure
as described in the operating chapter and allow the system to cool down
before attempting to access internal components.
Danger! To prevent unintentional restart, ensure that the main isolator
switch is o and the power is isolated before servicing internal components.
Attention! Advise all operating and maintenance personnel of the
automatic restart function if applicable.
Attention! Pay attention to accessibility requirements for maintenance and
service purposes.
Danger! Only certied personnel are allowed to adjust, repair or modify the
unit’s refrigerant system. Contact a DST representative for any questions
(Econosorb & Frigosorb only).
Caution! The operation of all electrical safety devices is to be checked at
commissioning and during service/maintenance. Under no circumstances
are these devices to be deactivated (e.g., during adjustment or bridging).
Caution! Do not expose the unit to water jets during the washing-down
procedure!
Caution! Do not wash the rotor!
Warning! Allow the fans to come to a complete stop and the unit to be
isolated from the electrical supply before removing any panels!
Warning! The unit is equipped with a heating element. Do not touch the
equipment whilst it is hot. Allow the unit to cool for at least 30 minutes before
any service or maintenance is performed.
Danger! Manually isolate the unit from the electrical supply by turning the
main isolator to“OFF” and secure it with a lock pad before conducting any
type of service and maintenance work on the unit
1.12 DISPOSAL/RECYCLING
When the unit is no longer in use, dismantle the unit and recycle the components
according to local regulations. Contact a DST representative if you have any
questions.
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