CIAT VECTIOS POWER IPJ Series, Инструкция по эксплуатации

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VECTIOS
POWER TM
PJ EN-28
Control of air
fl
ow
The supply plug-fans adapt their speed to the average
fl
ow
measured by the di
ff
erential pressure sensor and the value set
as a setpoint in the electronic control.
Clogged
fi
lter detector (optional)
Di
ff
erential pressostat for detection of the
fi
lter clogging level.
This pressostat is installed in the
factory in the electrical cabinet.
Pressure reading is done thanks to
two intakes within the air
fl
ow, such
that a comparison is made between
the pressure of the inlet air to the
fi
lter (positive) and the supply air
of the same to the other side of the
coil (negative).
The electronic control allows the
settings selection for the clogged
filter alarm: only indication (by
default) or unit stoppage. Manual reset.
The pressostat set value for alarm signalling is con
fi
gured in
factory, depending on the
fi
lters selected for the unit, according
to the following criterion (Standard EN 13053):
●
Unit
fi
lter: the set value is the pressure drop for the
fi
lter
classi
fi
cation, according to the attached table.
●
Serial
fi
lters: the set value is the pressure drop of the highest
e
ffi
ciency
fi
lter + half of the pressure drop of the other
fi
lter,
according to the attached table.
Important: This safety device is particularly recommended with
gas burner.
Filter classi
fi
cation Pressure drop (Pa)
G4 150
M6 / F7 250
F9 350
Note: all
fi
lter frames have a sticker indicating the
fi
lter
classi
fi
cation.
Main door switch
By using a mechanical device, it impedes access to the electrical
cabinet when the unit is with voltage.
11 - SAFETY ELEMENTS
High pressure pressostat
Connected to the compressor discharge, it will stop its operation
when the pressure at that point reaches the setpoint.
It disconnects at 42 bar and it is automatically reactivated.
Protection for power lines
Protection for power lines of compressors with manual motor
starters and power lines of fan motors with magnetothermic
switches.
These devices provide protection against overload, short circuit,
phase failure and undervoltage.
Low pressure safety
The low pressure safety is done by the Vectic electronic control
via the measure of the low pressure transducer.
Automatic switch in the control circuit
Magnetothermal switch that protects the operation circuit against
continuous surges as well as against high currents of short
duration (short circuits).
Safety valve
All models include a safety valve in the high pressure line. Valve
tare value at 45 bar.
Caution: Avoid the valve triggering direction
Defrost control
This safety device is intended to eliminate ice which could
accumulate in the outdoor coil when the unit is working in
heating mode.
Defrosting is carried out by the control depending on the outdoor
temperature and the value measured by the low pressure
transducer.
Safeties at the compressors
●
These units have a klixon switch on the compressor discharge
which stops the operation of the motor when there is excessive
heating.
●
Compressor lock: In the event of a power cut-o
ff
for a period
longer than 2 hours, the compressors will be locked. The unit
must remain 8 hours consecutively with voltage to unlock the
compressors. A warning screen on the VecticGD shows the
remaining time until the end of the locking.
●
High temperature safety in tandem compressors (optional):
Working in COOLING mode, when the outdoor coil pressure of
a circuit overcomes a limit value one of the two compressors
will be stopped, thereby avoiding the stop of both compressors
due to the high pressure. This compressor will start working
again if the pressure drops below a safety value.