35
8.10 SELECT THE ADDITIONAL REFRIGERANT
CHARGE.
Basic charge
e amount of refrigerant charged in the factory is:
Outdoor unit (series) Charge in factory (kg)
AUDAX PRO 4 V2
1.2
AU
DAX PRO 6 V2
AU
DAX PRO 9 V2 1.4
Charge another refrigerant depending on the total length of
the pipe.
e factory values of each charge are determined by the basic
length of the pipe of 15 m.
When an additional pipe length is necessary, further charging jobs
must be implemented as described below.
Charge the refrigerant.
e additional charge value is determined based on a specications
of the liquid pipe.
Outdoor unit of the liquid 6.35
additional charge (g) 20 g/m
additional charge (g) = (L1-15)*20
L1: Total length of the liquid pipe Ø 6.35 (m).
E.g.: Total length of the liquid pipe = 20 m.
Φ = 6.35 (20 m-15 m) x 20 g/m = 100 g.
PRECAUTIONS ON ADDING RE-
FRIGERANT R-32
In addition to the standard charging
procedure, the following requirements
must be met.
- Make sure there is no contamination by
other refrigerants for charging.
- To minimise the amount of refrigerant,
keep the exible hoses and lines as short as
possible.
- e cylinders must be upright.
- Make sure that the chilling system is earthed
before charging.
- Label the system aer charging, if necessary.
- Pay the utmost attention not to overcharge
the system.
- Before charging, the pressure must be
checked by blowing nitrogen.
- Aer the charge, check for any leaks before
activation.
- Make sure that you check for leaks before
leaving the work area.
8.11 RECHARGING THE REFRIGERANT.
- Measure the amount of refrigerant based on the length of liquid
side pipe. Use a scale to add the proper amount of refrigerant.
Important information on standards relative to the refrigerant
used.
is product contains uorinated greenhouse gases. Do not release
t
he gas into the atmosphere.