General Notes - Hitachi SAMURAI Series Service Manual
Condenserless water chillers
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- Service manual (140 pages) ,
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3. Servicing
General notes
3.2 General notes
Before starting to remove any component, take into account the following notes:
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.
•
It is recommended to turn the power supply off for some operations.
•
In all electrical works be sure there is no voltage. Check it with a multimeter.
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.
N O T E
The images and pictures shown in this chapter, except when the contrary is indicated, correspond to the RCME-50WH
model. Processes described are equally valid to all RCME-WH models.
N O T E
•
When brazing operations are required, check to ensure whether there are flammable materials around when using
the burner for pipe connections. Oil, and lubricants used may ignite, as well the cleaning clothes and cleaning papers.
•
Do not expose the refrigerant to the atmosphere for a long period in order to avoid mixing the water and foreign particles
with the refrigerant. After removing compressor, replace it quickly. If exposed for a long period, seal the suction and the
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.
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SMGB0097 rev.0 - 07/2015
3
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