SINCOLD AS.003, Operatinginstructions And Maintenance

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2.5. CONNECTION TO THE REFRIGERATING UNIT (ARRANGED WITH REMOTE UNIT)
The installation of blast chillers with remote compressor unit must always be carried out in compliance with the regulations concerning the
prevention of accidents, regulation and obligations of electric norms, noise and environmental impact. The possible installation of a compressor
unit in a closed room (e.g. machines room), must be carried out in compliance with the regulations in force in the country of installation. It is
very important to consider that in particular circumstances, for example in case of improper functioning, an escape of refrigerating gas can
occur through the security valve or fuse cap installed in the refrigerating unit: it is therefore necessary to provide immediate air circulation and
start first aid measures as indicated on the refrigerant security label.
The performances are guaranteed for the installation of the remote unit at a maximum distance of 10 meters.
The dimensions of the pipes must comply with the ones indicated in the table. The insulation of the air suction pipes must be at least 13 mm
thick and be made of a material suitable for refrigeration circuits.
Different installation levels between the blast chiller and its compressor unit need particular arrangements to ensure the faultless operation of
the unit:

compressor unit installed higher than the blast chiller:
install a syphon at each rise and any further rise, all 2 meters gradient
along the suction pipe;

unit installed lower than the blast chiller:
no syphons are needed, the pipe inclination towards the compressor unit should be
respected, at least 3mm/mt.
Gas proof soldering must be executed and the pipes must be emptied through both service taps. Check for eventual leaks, turn on the taps in
the compressor unit and add gas R404A, if necessary, checking the liquid sign. Add oil, type Artic 32 synthetic, if necessary, checking the oil
warning sign (where present).
A
Suction
B
Inlet
AS.005 (5.15)
Ø 12mm
Ø 6mm
AS.005 (5.20)
Ø 12mm Ø 8mm
AS.007 (7.20)
Ø 12mm
Ø 8mm
AS.007 (7.30)
Ø 12mm Ø 8mm
AS.010 (10.30) Ø 16mm Ø 12mm
AS.014 (14.30)
Ø 16mm Ø 12mm
A = Minimum distance from wall 1mt
B = Remote unit
C = To be executed about every 2mt
D = Inlet and suction pipes
E = 3mm/mt gradient towards remote unit
F = Blast chiller – deep freezer
In case it were necessary to add gas
during installation, the quantity of
gas added must be marked as “PLUS”
and “TOTAL” on the label featured in
picture.
2.6. WATER CONNECTION (FOR WATER CONDENSED MODELS)
Connect the water flow-in pipe as well as the drainpipe, as indicated on the plate on the back of the unit. Use network water with minimum
pressure of 100 kPa and a maximum of 500 kPa. The water temperature shall not 18°C.
Do not use sea water. The specific models are available upon request.
Install a tap on the entrance pipe. The water drain must be in free air at least 20 mm from the nearby drain.
With still unit check for any water leakage from the drainpipe. If this were the case, slightly turn the pressure valve off ( ¼ of a turn).
Attention! The missing water flow will cause the block of the unit and the activation of the security switch HP.
Minimum distance between water drain and floor or other surface.