Technibel GRFMX366R5I - Page 11

Free Match D.C.inverter Muti-variable Air Conditioner Outdoor Unit
7
(2) Energy Level and Capacity Code of the Indoor and Outdoor Units
Table 2
Energy Level Capacity Code
Indoor Unit
09 25
12 35
18 50
21 60
24 71
Outdoor Unit
36 100
42 120
1) The outdoor unit with capacity level 36 can drive up to four sets of indoor units, while the
outdoor unit 42 can drive up to ve.
2) The sum of the capacity codes of the indoor units should be among 50%-150% of that of
the outdoor unit.
(3) Allowable Length and Height Fall of the Refrigerant Pipe
Table 3
Allowable Length Refrigerant Pipe
36 42 36 42
Total Length(m) 70 80 L
1
+L
2
+L
3
+ L
4
L
1
+L
2
+L
3
+ L
4
+ L
5
Max. Length for Single Unit(m) 20 25 L
X
Max.
installation
altitude
Outdoor unit and
indoor unit
15 15 H1
Indoor unit and
indoor unit
7.5 7.5 H2
Table 4: Dimension of the Refrigerant Pipe of the Indoor Unit
unit
：
mm
Capacity Level of the Indoor Unit Gas Pipe Liquid Pipe
09,12 φ9.52 φ6.35
18 φ12.7 φ6.35
21,24 φ15.9 φ9.52
(4) Piping between the Indoor and Outdoor Units
1) Refer to Fig.6 for the moments of torque for tightening screws.
2) Let the are end of the copper pipe point at the screw and then tighten the screw by hand.
3) After that, tighten the screw by the torque wrench unit it clatters (as shown in Fig.6).
4) The bending degree of the pipe can not be too small; otherwise it will crack. And please use
a pipe tube bender to bend the pipe.
5) Wrap the exposed refrigerant pipe and the joints by sponge and then tighten them with the
plastic tape.