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Code: 02250145-- 604 SR-- 250 --- SR -- 3000
English
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5.2 Disassembling the unit
The machine has been designed andconstructed to guarantee continuous operation.
The long service life of some components such as the fan and compressor depends
on good maintenance.
Theunitmustonlybedisassembledbyarefrigerantspecialist.
Refrigerant liquid and lubricating oil inside the refrigeration circuit must be recov-
ered in compliance with current norms in the country where the machine is i nstalled.
RECYCLING
DISASSEMBLY
frame and panels steel/epoxy resin polyester
heat exchanger (cooler) aluminium
pipes copper/aluminium
drainage system brass/PC
heat exchanger insulation EPS (polystyrene sintered)
pipe insulation gum synthetic
compressor steel/copper/aluminium/oil
condensator steel/copper/aluminium
refrigerant R407C (H, F, C)
valve brass
electrical cable copper/PVC
5.3 Refrigerant leaks in the refrigeration circuit
FOREWORD
The unit is delivered in perfect working order, already charged as specified in Fig. 5.
Refrigerant leaks may be identified as follows: the compressor overload protector
(PI) trips; the safety thermostat (ST) trips; the pressure gauge indicates “0”.
IF A LEAK IS DETECTED IN THE REFRIGERANT CIRCUIT SEEK TECHNI-
CAL ASSISTANCE.
5.4 Refrigerant charging (see Fig. 5)
THIS OPERATION MUST ONLY BE PERFORMED BY A REFRIGERANT
SPECIALIST.
WHEN REPAIRING THE REFRIGERANT CIRCUIT, COLLECT ALL THE RE-
FRIGERANT IN A CONTAINER AND DISPOSE OF IT IN THE APPROPRIATE
MANNER.
Characteristics of refrigerant R407
In normal tempera ture and pressure conditions the above refrigerant is a colourless,
class A1/A1 gas with TVL value of 1000 ppm (ASHRAE classification).
If a refrigerant leak occurs thoroughly air the room before commencing work.
6Calibration
The dryer is supplied factory set with the values shown in Fig. 9 and therefore re-
quires no further calibration.
7 Spare parts list
(see. Fig. 7)
This list contains the principal spare parts. When ordering spare parts always quote
the quantity, part code and machine serial number.
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