9 Servicing
General notes
SMGB0091 rev.2 - 11/2015
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9.1 General notes
Before starting to remove any component, take into account the following notes:
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D A N G E R
• Before performing any of the service operations described in this chapter, turn all the main switches off and place security
lockers or convenient warning indicators in order to prevent them from turning on accidentally.
• Check and be sure that the LED201 (Red) on the inverter PCB is OFF for all electrical maintenance.
• Do NOT touch the electrical components when the LED201 (Red) on the inverter PCB is ON to avoid electrical shock.
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C A U T I O N
• In case of sharped edged parts, as covers, use security gloves to avoid getting injured.
• In case of blocked or stuck parts, use appropriated tools and eventually lubricants to release them.
• When performing brazing work, besides security gloves it is a must to wear convenient eye protection.
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N O T E
The images and pictures shown in this chapter, except when the contrary is indicated, correspond to the RASC-(4-6)HP units. Processes
described are equally valid to (8/10)HP models.
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N O T E
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All compressors are connected by brazing. Check to ensure whether there are flammable things around or not when using a burner
for pipe connections, if not, oil existing pipe inside may ignite.
• Do not expose the refrigerant cycle to the atmosphere for a long period in order to avoid mixing the water and foreign particles into
the refrigerant cycle. After removing compressor, replace it quickly. If exposed for a long period, seal the suction pipe and discharge
pipe. Seal pipe ends using caps or tape.
• To reassemble perform the procedures in reverse way.
• To prevent contamination of the refrigerant with water or foreign particles, do not expose open to atmosphere for long periods.