Refilling The Refrigerant - Daikin RZQ20KCVJK Installation Manual

01_EN_3P281953-1B.fm Page 20 Tu esday, January 25, 2011 3:35 PM

8. REFILLING THE REFRIGERANT

Be sure to use R410A as refrigerant.
8-1 PRECAUTIONS FOR ADDING REFRIGERANT
This unit does not require charging, however, so if the piping length is within the lengths shown in the table
below, no additional refrigerant needs to be charged.
The piping length of the refrigerant piping is determined based on the figure following.
Piping length
In cases where the piping length exceeds that shown in the above table or recharging needs to be performed,
charge as described below.
Be sure to write down the additional amount of refrigerant charged or the entire amount re-charged on the
precaution plate on the rear of the front panel, as this information is needed in case of after-sales service.
8-2 ADDING REFRIGERANT
From the table below, select a refrigerant amount that is suitable for a piping length exceeding the length for
which charging is actually needed. Then add the refrigerant from the service port of the liquid side stop valve.
Select the amount of refrigerant to be added from the table below in accordance with the piping length, and add.
Length of piping exceeding
the length for which addi-
tional charging is not
required
R410A
20 · 24 type
additional
36 · 45 · 48 type
amount
8-3 COMPLETE CHARGING OF THE REFRIGERANT (When recharging due to refrigerant
leaks, etc.)
Re-charge the amount of refrigerant selected from the table below.
Piping length
R410A 20 · 24 type
complete
charging
36 · 45 · 48 type
amount
English
20 · 24 · 36 · 45 · 48 type
+10m or less +20m or less
+0.50 +1.00
+0.50 +1.00
10m or 20m or 30m or
less less less
1.75 2.25 2.75
2.70 3.20 3.70
30m
+30m or less
-
+1.50
40m or 50m or 60m or
less less less
3.25 3.75 -
4.20 4.70 5.20
(kg)
+40m or less
-
+2.00
(kg)
70m or
less
-
5.70
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