Probe Connection
Installation and Mounting • 15
11 Installation and
Mounting
The XR75CX
controller should be mounted on a vertical
panel, in a 29 mm x71 mm hole, and secured using the
special bracket supplied.
The temperature range allowed for correct operation is 0 to
60°C. Avoid places subject to strong vibrations, corrosive
gases, excessive dirt, or humidity. The same
recommendations apply to probes. Allow air to circulate
through the cooling holes.
12 Electrical
Connections
The device is provided with screw terminal block to
connect cables with a cross section up to 2.5 mm
2
. Before
connecting cables verify that the power supply complies
with the device’s requirements. Separate the probe cables
from the power supply cables, from the outputs and the
power connections.
Do not exceed the maximum current
allowed on each relay, in case of heavier loads use a
suitable external relay.
12.1.Probe Connection
The probes should be mounted with the bulb upwards to
prevent damages due to casual liquid infiltration. It is
recommended the thermostat probe be placed away from
air streams to measure the average room temperature
correctly. Place the defrost termination probe among the
evaporator fans in the coldest place, (where most ice is
formed) and far from heaters or from the warmest place
during defrost to prevent premature defrost termination.
Figure 11-1 - Installation and Mounting of XR75CX
