Profroid GCV B2H ZF15, Руководство по эксплуатации

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REFRIGERATION NETWORK CONNECTION
B
EFORE ANY WORK IS DONE ON THE REFRIGERATION CIRCUIT
,
THE HOLDING CHARGE MUST BE REMOVED
.
The piping used (copper or steel) must be of refrigeration quality in accordance with PED 2014/68/EU.
All piping must be correctly supported and fixed and should in no case be allowed to restrict the piping of the power pack.
The units are provided with a temporary charge of neutral gas (nitrogen or dry air) which should be removed before any operation
(connection by welding).
To eliminate this neutral gas totally, the whole installation should be put into vacuum.
The upstream/downstream connection interfaces of unit are formed by copper pipe links welded onto the shut-off valves.
ELECTRICAL CONNECTIONS
General information
The machine is designed in accordance with EN60204-1.
All wiring 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/3/50Hz + Earth
control circuit: 230V/1/50Hz (pressure switches – crankcase heaters).
Electrical compressors motor wiring
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.
Always refer to the instructions shown on the compressor
Important : the maximum imbalance between phases is 2% in voltage and 10% in current per motor.
Protectionofelectricalmotors
Electronic module protection
ZF24 to ZF48 models have an electronic winding motor temperature protection (identified by a W in the motor reference, e.g.
ZF33K4E-TWD ).
These are equipped with module INT 69SCY as a standard feature.
In all cases, the compressor restart time delay is 30 minutes after the disappearance of the fault.
Internal thermostat protection
ZB and ZF (ZF09 to ZF18) models have an internal motor overheating protection (internal Klixon), which stops the motor in the
event of the winding temperature being too high, independently of the control.
Fan condenser motors
The choice of speed is determined by the choice of Star Delta connection for a given voltage (designed for each type of unit)
Common characteristics of these motors:
The Star connection for 230V three-phase circuits is forbidden.
Ambient Temperature -30 à +45°C
Hygrometry 60 à 98 %
Protection factor with purge
holes sealed (CEI 34-5)
IP55
Class (CEI 85 et CEI 34-1). F
Electrical supply 400 V - 50 Hz
Important
: the maximum imbalance between phases is 2% in voltage and 10% in current per motor.
Voltage limits : 400V +7% / -10%
ADDITIONAL SAFETY CONTROLS
SafetyFeatures
The safety switches fitted to the compressors cut off the compressor instantaneously.
Each compressor is fitted with one HP pressure switch (25 bar gauge cut out / 18 bar cut in) and an LP pressure switch (setting by
installer following application guideline from manufacturer of compressor).
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