Owner's Manual

Flex + Series
15
Table 6
Serial No. Model
Indoor unit 1 Cassette type
ISMI-C15
Indoor unit 2 Duct type
N/A
Indoor unit 3 Wall mounted type
ISMI-W092
Indoor unit 4 Wall mounted type
ISMI-W092
Indoor unit 5 Duct type
N/A
Indoor unit 6 Wall mounted type
ISMI-W092
Table 7
Serial Diameter(mm/inch) Length(m/feet)
L1 Φ9.52(3/8) 20(65-5/8)
L2 Φ9.52(3/8) 10(32-3/4)
L4 Φ9.52(3/8) 10(32-3/4)
1A Φ6.35(1/4) 5(16-3/8)
1B Φ6.35(1/4) 5(16-3/8)
1C Φ6.35(1/4) 5(16-3/8)
2A Φ6.35(1/4) 5(16-3/8)
2B Φ6.35(1/4) 5(16-3/8)
2C Φ6.35(1/4) 5(16-3/8)
The total length of the liquid pipes: 20+10+10+5+5+5+5+5+5=70m (229-5/8feet).
Thus, the total length is over than 30m (98-3/8feet), so the air conditioner needs to add refrigerant.
 Additional refrigerant charge
Σ the Liquid Pipe Length of Φ6.35×0.022kg/m +Σ the Liquid Pipe Length of Φ9.52×0.054kg/m
-1.47kg
=(5+5+5+5+5+5)(m)×0.022kg/m+(20+10+10)(m)×0.054kg/m-1.47kg
=1.35kg (47.63oz)
4) Additional refrigerant charge record for future maintenance
Table 8
Diameter(mm) Total length(m/feet) Additional refrigerant charge(kg/oz)
Φ6.35(1/4)
Φ9.52(3/8)
Total
6.8.2 Proced
ures for adding refrigerant