34/61
NFORMATION
ON
THE
REG
C
-
ADDITIONAL
I
ULATOR
OLD
ROOM
REGULATOR
Introduction
The
PROCOLD
controller
is
an
electronic
device
for
standard
cold
rooms.
It
can
be
also
used
to
manage
other
parts
of
the
frigorific
system
such
as:
compressor,
cooler
fans,
defrost
system,
alarms
and
the
cold
room
lighting.
The
box
is
classified
IP65
and
can
be
wall
mounted
as
well
as
panel
mounted
(on
request).
This
controller
uses
2
temperature
probes,
one
for
the
cold
room
temperature,
and
the
other
for
the
evaporation
temperature.
Wall
mounting
Unscrew
the
two
screws
a
and
b
(Fig.
1)
and
remove
the
front
cover.
Unscrew
the
two
screws
d
and
e
(Fig.
1),
which
fix
together
the
two
parts
of
the
PROCOLD,
and
separate
them.
Drill
3
holes
(Fig.
2)
m,
n,
o
in
the
PROCOLD
back
lid
and
fix
this
one
to
the
wall.
Drill
to
open
compression
gland
on
the
upper
or
lower
part
of
the
lid,
depending
on
the
powering
mode.
Fix
the
compression
gland
(1
for
the
remote
part
wires,
2
for
the
probes)
before
remounting
the
PROCOLD
panel.
Check
the
position
of
the
upper
teeth.
Do
not
over-tighten
in
order
to
avoid
deforming
the
plastic
box.
Connect
the
wires
to
the
PROCOLD
terminal
block
and
close
the
front
cover.
Fig 1
Important:
8.
Avoid
mounting
the
PROCOLD
controller
in
an
environment
which
presents
the
following
properties:
-
Large
or
rapid
fluctuation
of
the
ambient
temperature
-
Relative
humidity
exceeding
80
%,
-
Direct
water
jets
under
pressure,
-
High
electro-magnetic
or
radio-frequency
interference
(transmit
antenna
for
example),
-
Corrosive
or
aggressive
environment.
9.
Check
the
tightening
of
all
the
electrical
connections.
10.
Separate
the
probe
wires
from
the
power
wire
in
order
to
avoid
electro-magnetic
interference.
Avoid
making
loops
around
power
components
with
probe
wires.
11.
Do
not
touch
the
electronic
components
on
the
electronic
cards
in
order
to
avoid
electrostatic
discharge.
12.
To
extend
probe
wires,
use
wires
with
a
minimum
section
of
0.5
mm2.
We
strongly
recommend
you
use
shielded
cable
with
the
shield
connected
to
the
box.
13.
Respect
the
applicable
regulations.
14.
Check
that
connected
charges
do
not
exceed
acceptable
values;
this
may
damage
the
output
relays.
