Installation Details; Wrench Torque Sheet For Installation; Connecting The Cables; Pipe Length And The Elevation - Midea MSY-09HRDN1-QC8 Service Manual

7. Installation details

7.1 Wrench torque sheet for installation

7.2 Connecting the cables

The power cord of connect should be selected according to the following specifications sheet.

7.3 Pipe length and the elevation

Pipe size
Capacity
Btu/h
Gas
9k 3/8'' (Ф9.52)
12k 1/2'' (Ф12.7)
18k 1/2'' (Ф12.7)
Caution:
Capacity is based on standard length and maximum allowance length is base of reliability.
Oil trap should be installed per 5-7 meters.

7.4 Air purging of the piping and indoor unit

Required tools:
Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak
detector.
Outside diameter
mm inch
Ф6.35 1/4
Ф9.52 3/8
Ф12.7 1/2
Grade
Unit 9K
mm 1.5
2
Liquid
1/4'' (Ф6.35)
1/4'' (Ф6.35)
1/4'' (Ф6.35)
Torque
Kgf.m
1.8
4.2
5.5
12K 18K
1.5 2.5
Standard Max.
length Elevation
(m) B (m)
5 8
5 10
5 10
Max. Additional
Length refrigerant
A (m) (g/m)
20 30
25 30
25 30
16