Zodiac PX 50, Instructions For Installation And Use Manual

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refrigerants when using charging equipment. Hoses or lines must be as short as 

possible to reduce the quantity of refrigerant contained therein.

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Cylinders  must  be  kept  in  an  appropriate  position,  in  accordance  with  the 

instructions.

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Check  that  the  cooling  system  is  grounded  before  charging  the  system  with 

refrigerant.

 -

Label the system once charging is complete (if this is not already the case).

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Pay close attention to not overfilling the cooling system.

• 

Before recharging the system, carry out a pressure test using a suitable purge gas. 

The system must be examined to make sure there are no leaks after the charging 

operation and before commissioning. A follow-up leak test must be carried out 

before leaving the site.

Dismantling

• 

Before  dismantling,  the  technician  must  familiarise  himself/herself  with  the 

equipment and its specifications. We highly recommend carefully recovering all 

refrigerants. Before this, oil and refrigerant samples must be taken if analyses are 

to be carried out before any other use of the recovered refrigerant. Check for the 

presence of a power supply before starting work.

1. Familiarise yourself with the equipment and how it operates.

2. 

Electrically isolate the system.

3. Before starting work, check the following points:

 -

mechanical handling equipment is available if needed to handle the refrigerant 

cylinders;

 -

all personal protective equipment is available and used correctly;

 -

the recovery process is followed at all times by a cognizant person;

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the recovery cylinders and equipment comply with the relevant standards.

4. 

Drain the cooling system where possible.

5. If a vacuum cannot be created, install a manifold in order to be able to remove 

the refrigerant from various locations within the system.

6. 

Make  sure  that  the  cylinder  is  located  on  the  scales  before  starting  recovery 

operations.

7. Start the recovery unit and operate as per its instructions.

8. 

Do not overfill the cylinders (no more than 80% of the volume must be filled with 

liquid).

9. 

Do not exceed the maximum working pressure of the cylinder, even temporarily.

10. When the cylinders have been filled correctly and the process is complete, check 

that the cylinders and the equipment are quickly removed from the site and that 

the alternative shut-off valves on the equipment are closed.

11. The recovered refrigerant must not be charged in another cooling system, unless 

it has been cleaned and inspected.

TROUBLESHOOTING

• 

All brazing must be carried out by qualified brazers.

• 

Replacement pipes must always be made of copper in compliance with standard 

NF EN 12735-1.

• 

Leak detection; pressure test:

 -

never use oxygen or dry air, risk of fire or explosion, 

EN