User manual

3 Product description
EN
8 Rittal enclosure cooling unit
3.1.7 Door limit switch
The cooling unit may be operated with a floating door
limit switch connected. The door limit switch is available
as accessory from Rittal.
The door limit switch function causes the fans and the
compressor in the cooling unit to gradually slow down
and then switch off after approximately 15 seconds
when the enclosure door is opened (contacts 1 and 2
closed). This prevents the formation of condensate wa-
ter inside the enclosure while the enclosure door is
open. In order to prevent damage to the unit, it is
equipped with an ON delay: The evaporator fan will cut
in again after a delay of a few seconds on closure of the
door.
Please note that no external voltage may be applied to
the door contacts (terminals 1 and 2)
3.2 Proper use, foreseeable misuse
The cooling unit is only intended for cooling connected
enclosures. Any other use is not permitted.
– The unit must not be installed and operated in loca-
tions which are accessible to the general public (see
DIN EN 60335-2-40, paragraph 3.119).
– The unit is designed solely for stationary use.
– The manufacturer's consent must be obtained in ad-
vance for mobile applications, e.g. on cranes.
The cooling unit is state of the art and built according to
recognised safety regulations. Nevertheless, improper
use can pose a threat to the life and limb of the user or
third parties, or result in possible damage to the system
and other property.
Consequently, the cooling unit must only be used prop-
erly and in a technically sound condition! Any malfunc-
tions which impair safety should be rectified immediate-
ly.
Proper use also includes the observance of the docu-
mentation provided, and compliance with the inspection
and maintenance conditions.
Rittal GmbH & Co. KG is not liable for any damage which
may result from failure to comply with the documenta-
tion provided. The same applies to failure to comply with
the valid documentation for any accessories used.
Inappropriate use may be dangerous. Examples of inap-
propriate include:
– Use of the cooling unit over long periods with the en-
closure open.
– Use of impermissible tools.
– Improper operation.
– Improper rectification of malfunctions.
– Use of accessories not approved by Rittal GmbH &
Co. KG.
3.3 Supply includes
Qty. Description
1 Enclosure cooling unit
1 Shipping bag with
1 – Declaration of conformity
1 – Assembly and installation instructions
1 – Assembly, installation and operating in-
structions on digital data carrier
1 – Warning and safety notes
6 – Grub screws M8 x 40 mm
6 – Nut-and-washer assembly M8
1 – Sealing tape 10 x 10 mm, L = 4.1 m
1 – Signal connector X2
1–Connector X1
1 – Cover for connection unit
1 – Membrane entry grommet
1 – Clip
1 – Wedge element
6 – Fixing clamps
4 – Corner bracket for internal/external
mounting
2 – L-shaped brackets
1–Earth clamp 4 NS
1–Earth clamp 5 NS
1 – Washer for attaching the earth clamp
1 – Contact washer for attaching the earth
clamp
1 – M4 nut for attaching the earth clamp
1 – Cable gland M20 x 1.5 mm
1 – EMC cable gland M20 x 1.5 mm
1 – Strain relief
Tab. 1: Supply includes