10
Sun. Water.
Life.
BERNT LORENTZ GmbH & Co. KG
Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. +49 (0) 4193 7548 - 0, Fax - 29,
www.lorentz.de
All specifi cations and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may
differ from actual products depending on local market requirements and regulations.
v150106
9 3 Mounting, space and ventilation requirements
The PSk2 controller must be mounted to a solid wall or
back-plate. Ensure that the mounting back-plate can
support the weight of the controller. The user is responsible
for correct and safe mounting.
First, mark all drill holes. Refer to “Table 4: Controller
dimensions for installation” on page 9 and use the val-
ues W2, H3 and d. Fit all screws, leave about 10 mm / 0.4”
space between the screw’s head and the wall. Hang the
controller on the wall. Finally, tighten all screws.
PSk2 controllers can be mounted side by side.
CAUTION – When installed in an indoor
location sufficient ventilation must be
ensured by a vent or similar ventilation
device Do not install in a place which
is exposed to direct sunlight
CAUTION – The heat sink gets hot
during operation Do not touch it until
it has cooled down to avoid the risk of
burns
CAUTION – Do not let any swarf
(drilling chips) fall into the controller
fins or fan during installation
Figure 3: Minimum spacing for wall mounting
Figure 4: Correct controller mounting: direct to the wall
Figure 5: Correct controller mounting: with back cover
hot air out
hot air out
hot air out reduced
cold air in
cold air in
cold air in
air stream
leaks back- and
sidewards
back cover
Figure 6: Wrong controller mounting: without back cover
200 mm / 8”
200 mm / 8”
150 mm / 6”
150 mm / 6”
350 mm / 1’2”
The controller must be mounted
directly on a vertical, flat wall or
equipped with a back plate The
controller must not be installed inside
an additional enclosure, box or any
other hollow space that could result in
the controller not being efficiently
cooled Inefficient cooling will reduce
the system performance and can
damage the controller
CAUTION – To ensure effective cooling,
the controller must be installed
vertically with at least 20 cm / 8” space
above and below the casing