24
The
unit
must
be
exactly
level
in
order
to
avoid
creating
an
accumulation
of
oil
at
the
lowest
point,
in
the
suction
and
discharge
pipes,
or
causing
vibrations.
No
obstacles
should
be
allowed
to
prevent
air
from
being
drawn
from
the
coil
and
the
fan
to
discharge.
Sufficient
space
should
be
allowed:
-
1
m
minimum
on
the
fan
side
and
electrical
cabinet
side
for
servicing
and
maintenance
operations.
-
0.7
m
minimum
on
the
coil
side.
Maximum
distance
between
condensing
unit
and
evaporator
is
25
m
with
solenoid
valve
close
to
evaporator.
REFRIGERATION
NETWORKCONNECTION
B
EFORE ANY WORK IS DONE ON THE REFRIGERATION CIRCUIT
,
THE HOLDING CHARGE MUST BE REMOVED
.
The
piping
used
must
be
of
copper
refrigeration
quality
in
accordance
with
PED
2014/68/EU.
And
EN12735-1.
All
piping
must
be
correctly
supported
and
fixed
and
should
in
no
case
be
allowed
to
restrict
the
piping
of
the
condenser
units.
In
order
to
reduce
vibrations
of
the
frame
and
panels,
compressor
is
disconnected
to
the
frame
by
flexible
mounting.
ELECTRICAL
CONNECTIONS
General
information
The
machine
is
designed
in
accordance
with
EN60204-1.
Supplying
cable
must
be
connected
on
terminal
of
main
switch.
Take
care:
voltage
close
to
circuits
and
main
switch.
All
cabling
on
site
must
conform
to
the
legal
standards
in
force
in
the
relevant
countries
and
to
EN60204-1.
Except
for
special
operation,
the
nominal
current
must
be:
-
power
circuit:
400V/3+N/50Hz
+
Earth
-
control
circuit:
230V/1/50Hz
(pressure
switches,
fans
speed
control,
crankcase
heaters).
Neutral
is
compulsory,
230V
voltage
is
necessary
to
condenser
fan.
Electrical
motor
wiring
Electrical motors for compressors
These
are
designed
for
a
direct
start.
The
compressor
motors
are
fitted
with
an
anti-short
cycle
mechanism
allowing
a
maximum
of
6
start-ups
per
hour.
Timer
T1
adjustment
must
not
be
modified.
ZB
compressors
are
protected
with
an
internal
thermistor.
Motor
switch
off
when
windings
temperature
is
too
high
(independently
of
control)
ZF
compressors
are
protected
with
an
external
thermostat.
Electrical motors of condenser
T1
to
T4
:Models
equipped
with
2
fan-motors
450
or
500mm
diameter
The
motor
fitted
in
the
condenser
is
single
phase.
Motor
applications
:
-
Insulation
class
F
-
Protection
factor
IP44
minimum
-
Nominal
current
230V.
T5
:Models
equipped
with
2
fan-motors
630mm
diameter
The
motor
fitted
in
the
condenser
is
single
phase.
Motor
applications
:
-
Insulation
class
B
-
Protection
factorIP54
-
Nominal
current
230V.
The
motor
protections
must
conform
to
legal
standards
and
calibrated
to
the
nominal
current.
Fan speed control
The
notice
of
speed
controller
is
attached
to
present
document
into
the
unit
ADDITIONAL
SAFETY
CONTROLS
SafetyFeatures
The
safety
switches
fitted
to
the
compressors
must
cut
off
the
compressor
instantaneously.
Crankcase
heater
The
crankcase
heater
must
be
powered
and
operational
during
compressor
shut-downs.
Summary of Contents for QUIETOR GQH-GQL
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