3. Refrigerant pipe connection
Before installing, make sure that the height difference, the length of refrigerant pipe and number of bends
between indoor and outdoor units, meet the following specifications.
UNIT
Additional charge (R-32)
UNIT
2 x 1 (H11.2)
15m
Charged until
(Total Liquid Length 1/4")
Total Liquid Length 1/4":
Additional
charge
12 x (Total length - 15)
(g)
2 x 1 (H11.2) 3 x 1 (H11.3) 4 x 1 (H11.4)
40
60
80
25
30
35
15
15
15
15
15
15
10
10
10
3 x 1 (H11.3)
22,5m
(Total Liquid Length 1/4")
Total Liquid Length 1/4":
12 x (Total length - 22,5)
34
Outdoor unit
5 x 1 (H11.5)
80
35
15
15
10
4 x 1 (H11.4)
30m (Total Liquid Length 1/4")
7,5m (Total Liquid Length 3/8")
Total Liquid Length 1/4":
15 x (Total length - 30)
Total Liquid Length 3/8":
24 x (total length - 7,5)
Indoor unit
Max. height difference
Indoor unit
15m
10m
15m
Indoor unit
5 x 1 (H11.5)
37,5m (Total Liquid Length 1/4")
7,5m (Total Liquid Length 3/8")
Total Liquid Length 1/4":
15 x (Total length - 37,5)