Midea M3OC-27HRDN1-M - Installation Details

ODMI-A-1110
7. Installation Details
7.1 Wrench torque sheet for installation
Outside diameter Torque Additional tightening torque
mm inch N.cm N.cm
$6.35 1/4 1500(153kgf.cm) 1600(163kgf.cm)
$9.52 3/8 2500(255kgf.cm) 2600(265kgf.cm)
$12.7 1/2 3500(357kgf.cm) 3600(367kgf.cm)
7.2 Connecting the cables
The power cord of connect should be selected according to the following specifications sheet.
For power line:
Unit AWG
dual-zone(18K outdoor unit) 14
tri-zone (27K outdoor unit). 14
qua-zone(36K outdoor unit) 12
For indoor unit and outdoor unit connection line, 16AWG is ok for all.
7.3 Pipe length and the elevation
Unit
Pipe size
Standard
length
(m)
Max.
Elevation
B (m)
Max.
Length
A (m)
Additional
refrigerant
(g/m)
Gas Liquid
9K 3/8•• ($9.53) 1/4•• ($6.35)
5
(16.4ft)
8
(26.2ft)
20
(65.6ft)
20
(0.212
ozs/ft)
12K/18K 1/2•• ($12.7) 1/4•• ($6.35)
Caution:
Capacity test is based on standard length and maximum allowance length is based on reliability.
Oil trap should be installed per 3-5 meters.