Daitsu DS-18UIAK Notice D'utilisation page 62

Configuration of connection pipe and additional volume of refrigerant
Sheet 2. Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe mm
Liquid pipe
Ф6
Ф6 or Ф9.5
Ф12
Ф16
Ф19
Ф22.2
Note: The additional refrigerant charging amount in Sheet 2 is recommended value, not compulsory.
Gas pipe
Ф9.5 or Ф12
Ф16 or Ф19
Ф19 or Ф22.2
Ф25.4 or Ф31.8
-
-
Indoor unit throttle
Cooling only, cooling and
heating
(g / m)
20
50
100
170
250
350
- 29 -
Outdoor unit throttle
Cooling only
Cooling and
(g / m)
heating
(g / m)
15 20
15 50
30 120
60 120
250 250
350 350