Samsung AR09TXHQBWKNEU - Note on Adding Refrigerant

37
User manual/
Installation manual
Note on Adding Refrigerant
Some systems require additional charging depending on pipe lengths. The standard pipe
length is 5m (16’). The refrigerant should be charged from the service port on the outdoor
unit’s low pressure valve. The additional refrigerant to be charged can be calculated using
the following formula:
ADDITIONAL REFRIGERANT PER PIPE LENGTH
Connective Pipe
Length (m)
Air Purging
Method
Additional Refrigerant
≤ Standard pipe
length
Vacuum Pump N/A
> Standard pipe
length
Vacuum Pump
Liquid Side: ø6.35 (ø0.25”)
R32:
(Pipe length – standard length) × 12g/m
(Pipe length – standard length) × 0.13oZ/ft
Liquid Side: ø9.52 (ø0.375”)
R32:
(Pipe length – standard length) × 24g/m
(Pipe length – standard length) × 0.26oZ/ft
CAUTION
DO NOT
mix refrigerant types.
Precautions on adding the R-32 refrigerant
In addition to the conventional charging procedure, the following requirements shall be kept.
● Make sure that contamination by other refrigerants does not occur for charging.
● To minimize the amount of refrigerant, keep the hoses and lines as short as possible.
● The cylinders shall be kept upright.
● Make sure that the refrigeration system is earthed before charging.
● Label the system after charging, if necessary.
● Extreme care is required not to overcharge the system.
● Before recharging, the pressure shall be checked with nitrogen blowing.
● After charging, check for leakage before commissioning.
● Be sure to check for leakage before leaving the work area.
Important information: regulation regarding the refrigerant used
This product contains uorinated greenhouse gases. Do not vent gases into the
atmosphere.
CAUTION
Inform user if the system contains 5 tCO
2
e or more of uorinated greenhouse gases. In this
case, it must be checked for leakage at least once every 12 months, according to regulation
No. 517/2014. This activity must be covered by qualied personnel only. In the case of the
situation above, the installer (or authorized person with responsibility for nal check) must
provide a maintenance book, with all the information recorded, according to REGULATION
(EU) No. 517/2014 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 16 April
2014 on uorinated greenhouse gases.
1 Please ll in the following with indelible ink on the refrigerant charge label supplied with
this product and on this manual.
●
1
the factory refrigerant charge of the product,
●
2
the additional refrigerant amount charged in the eld and
●
1
+
2
the total refrigerant charge. on the refrigerant charge label supplied with the