Scope Of Delivery And Options; Scope Of Delivery; Accessories; General Information - Pfannenberg DTT 6 01 Série Notice D'utilisation Et De Montage

GB
3

Scope of delivery and options

3.1

Scope of delivery

The Scope of delivery includes:
• Cooling unit,
• Operating manual,
• Operating manual controller
• Supplement sheet,
• Enclosed package, (gasket, fastening material, electrical plug-
type connectors)
• special accessories, if applicable.
3.2

Accessories

The following parts may be ordered separately:
• Filter adapter
• Textile filter;
• Metal filter;
• Quick-release frame
further options on request or in accordance with the catalogue.
4

General Information

• Old devices can be properly disposed of by Pfannenberg.
They must be sent to one of our works shipment/postage paid.
• All cooling units produced by Pfannenberg are free from
– siliconecompounds,
– PCB,
– PCT,
– asbestos,
– formaldehyde,
– cadmium,
– substances impairing wetting.
• all cooling units are ROHS compliant.
• Every cooling unit is checked to ensure that it is tight according to
the provisions of UVV-BGV D4 (German regulations covering ac-
cident prevention).
• Prior to delivery the electrical safety of every cooling unit is facto-
ry tested. This means that, in accordance with UVV-BGV A2,
§5 (4), the operating company is released from the obligati- on to
arrange for a test of the electrical part of the cooling unit before
initial start of operation.
5

ID Plate and Technical Data

For installation and maintenance, note the data on the ID plate; it is
to be found on the back of the cooling unit casing.
The technical details applicable to the cooling unit are in the
accompanying supplement sheet or on our homepage
(www.pfannenberg.com).
085408158
6

Safety

Cooling units produced by Pfannenberg are designed for dissipating
heat from switch cabinets (IP 54). During each cooling process
condensate can be produced. The cooling unit is only suitable for
stationary operation.
The cooling unit may only be used under the ambient conditions
specified on the accompanying supplement sheet.
The cooling unit is to a large measure maintenance-free (see Section
11).
Every other use is considered as non-authorized use making any
warranty null and void.
The electrical equipment must be regularly checked. Any faults such
as loose connections or scorched cables must be removed
immediately.
Work on the cooling system and on electrical components may only
be carried out by authorized specialist personnel.
Compliance with applicable safety and environmental regulations is
mandatory.
Hazard!
Isolate the cooling unit from the mains before carrying
out any cleaning or maintenance operations.
Only original spare parts may be used. Please find spare parts in
the accompanying supplement sheet or at www.pfannenberg-
spareparts.de.
7

Function

7.1

Principles of function

1 Compressor
2 Heat exchanger
(condenser)
3 Expansion valve
4 Heat exchanger (evaporator)
5 fan, exterior circulation
6 fan, inner circulation
7 Electronic control system
with temperature sensor
The compressor (1) compresses the refrigerant until high pressure
is achieved. During this process temperature increases. In the
condenser (2) heat is dissipated to ambient air, the coolant becom-
ing liquid. The condenser fan (5) of the condensator takes ambi-
ent air in through the condenser, and then it releases the air.
In the expansion valve (3) the pressure of the coolant drops. In
the evaporator (4) the coolant absorbs heat from the air in the
switch cabinet and evaporates. Thus, the air in the switch cabi-
net cools down. At the same time the air inside the switch cabi-
net is being dehumidified. The evaporator fan (6) sucks the air out
of the switch cabinet via the evaporator, the cooled air flows back
to the switch cabinet.
The cooling unit is electronically controlled. For that purpose a
temperature sensor records the temperature of the air inside the
switch cabinet (7).
The refrigerant is not detrimental to the ozonosphere; it is hardly
combustible.
7.2

Condensate

During cooling on the evaporator the moisture removed from the air
is collected as condensate. In order to avoid any damage to the
switch cabinet and the cooling unit, the condensate must be
discharged.
The condensate is evaporated into the surroundings with an
integrated evaporator. For safety reasons, there is a drain nozzle
on the evaporation unit on which the drain hose is attached.
In order to selectively collect any condensate arising, a condensate
collection bottle
(art. no. 18314000100).
Excessive condensation can occur if, for example, the switch
cabinet is not sealed.
9/40
is available as an accessory