Carrier 30PA 180 Installation, Operation And Maintenance Instructions Download

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12 - MAINTENANCE

Refrigerant

Only quali

ed personnel must perform a periodic leak testing, in

accordance with the regulation (EC)

No. 517/2014.

■

The frequency of checks is no longer related to the refrigerant

charge but to its global warming potential:

Charge kg x GWP = t CO2e

Carbon dioxide equivalency (t CO2e) is a quantity that

describes, for a given mixture and amount of greenhouse gas,

the amount in tonnes of CO2 that would have the same global

warming potential (GWP).
The number of tonnes of CO2 equivalent (t CO2e) can be

consulted in the following table:

Oil

Oils for refrigeration units do not pose any health risks if they are
used in compliance with the precautions for use:

■

Avoid unnecessary handling of components lubricated with oil.
Use protective creams.

■

Oils are

ammable and must be stored and handled with care.

Disposable rags or cloths used in cleaning must be kept away
from open

ames and disposed of in the appropriate manner.

■

Containers must be stored with their caps on. Avoid using oil
from an opened container stored under incorrect conditions.

■

Check the oil level and aspect. In case of a colour change,
check the oil quality using a contamination test.

■

In the case of the presence of acid, water or metallic particles,
replace the a

ﬀ

ected circuit oil, as well as the

lter dryer.

■

If all the oil must be emptied, replace it imperatively with new
oil of the same grade as the original oil which has been stored
in a hermetically sealed container until its time of use.

■

The oil type recommended for these units is:

Copeland 3MAF 32cST, Danfoss POE 160SZ, ICI Emkarate
RL 32CF, Mobil EAL Artic 22CC.

The following table indicates the required volume:

30PA 90V-STD 100V-STD 120V-STD 160V-STD 180V-STD

Volume (l)

3,0

3,3

6,2

■

Make vacuum and next, reload the gas into the unit according to
load data provided in the in the table of paragraph “Refrigerant”
and in the unit’s data plate.

30PA 90V-HEE 100V-HEE 120V-HEE 160V-HEE 180V-HEE

Volume (l)

3,0

3,3

6,2

■

Operators shall ensure that the unit is checked for leaks ad
minima according to the following frequency:
• t CO2e < 5 .........not subjected
• t CO2e 5 to 50 ...every year
• t CO2e 50 to 500 every 6 months
• t CO2e > 500 ......every 3 months

■

Where a leakage detection system has been installed the
frequency of checks is halved.

Note: These machines use R410A. It is essential that technicians
use equipment which is compatible with R410A with a working
pressure which is approximately 1.5 times higher than that of
units using R407C.

■

Always remember that refrigeration systems contain
pressurised liquids and vapours. All necessary provisions must
be made when the system is partially opened: ensure the part
of the circuit concerned is not pressurised.

■

Partial opening of the primary refrigerating circuit will cause
a certain quantity of refrigerant to be released into the
atmosphere. It is essential to keep the amount of lost refrigerant
as low as possible by pumping the charge and isolating it in
another part of the system.

■

The refrigerant and lubricating oil, and the low-temperature
liquid refrigerant in particular, may cause in

ammatory lesions

similar to burns if they come into contact with the skin or eyes.
Always wear protective eyewear, gloves and other protective
equipment when opening pipes or tanks liable to have liquids
in them.

■

Store unused refrigerant in the appropriate containers and limit
the amounts stored in mechanical rooms.

■

Cylinders and tanks of refrigerant must be handled with care
and signs warning users of the related poisoning,

re and

explosion hazards must be clearly visible.

■

Refrigerant that reaches the end of its life must be collected and
recycled in accordance with applicable regulations.

30PA 90V-STD 100V-STD 120V-STD 160V-STD 180V-STD

Charge (kg)

5,9

6,1