Midea MCH4U-36PHH2 User Manual

10
4. Installation Details
4.1 Wrench torque sheet for
installation
Outside
diameter
Torque
Additional
tightening torque
mm inch
N.cm N.cm
Ф6.35
1/4
1500(153kgf.cm)
1600(163kgf.cm)
Ф9.52
3/8
2500(255kgf.cm)
2600(265kgf.cm)
Ф12.7
1/2
3500(357kgf.cm)
3600(367kgf.cm)
4.2 Connecting the cables
The power cord connection should be
selected according to the following
specifications sheet.
Unit
AWG
1 drive 2 type (18K outdoor unit)
14
1 drive 3 type (27K outdoor unit).
14
1 drive 4 type (36K outdoor unit)
12
1 drive 5 type (48K outdoor unit)
10
For indoor unit and outdoor unit
connection line, 16AWG is ok for all.
4.3 Pipe length and the elevation
Maximum piping length and height
difference
1 drive
2
1 drive
3
1 drive
4
1 drive
5
Max. length
for all rooms
(m)
40
(131ft)
60
(197ft)
80
(262ft)
80
(262ft)
Max. length
for one IU
(m)
25
(82ft)
30
(98ft)
35
(115ft)
35
(115ft)
Max. height
difference
between IU
and OU (m)
15
(49.2ft)
15
(49.2ft)
15
(49.2ft)
15
(49.2ft)
Max. height
difference
between IUs
(m)
10
(33ft)
10
(33ft)
10
(33ft)
10
(33ft)
Additional refrigerant charge
1 drive
2
1 drive
3
1 drive
4
1 drive
5
Pre-charge
pipe length
(m)
15
(49.2ft)
22.5
(73.8ft)
30
(98.4ft)
37.5
(123ft)
Additio
nal
refriger
ant
charge
g
15 x
(length
for all
rooms -
15)
15 x
(length
for all
rooms
– 22.5)
15 x
(length
for all
rooms -
30)
15 x
(length
for all
rooms
– 37.5)
oz
0.161
x(lengt
h for all
rooms
– 49.2)
(0.161
x(lengt
h for all
rooms
– 73.8)
0.161x(
length
for all
rooms
– 98.4)
.0.161x
(length
for all
rooms
–123)
Caution:
● Refrigerant pipe diameter is different
according to indoor unit to be connected.
When using the extension pipe, refer to
the tables below.
● When refrigerant pipe diameter is
different from that of the outdoor unit
connector (18K indoor unit) an additional
adapter is required.
Indoor unit
Extension pipe
diameter (mm/inch)
Model
Pipe diameter
(mm/inch)
9K
Liquid
6.35(1/4) Liquid
6.35(1/4)
Gas 9.52(3/8) Gas 9.52(3/8)
12K 18K
Liquid
6.35(1/4) Liquid
6.35(1/4)
Gas 12.7(1/2) Gas 12.7(1/2)
24K
Liquid
9.52 (3/8)
Liquid
9.52 (3/8)
Gas 15.9(5/8) Gas 15.9(5/8)
Outdoor unit union diameter (mm/inch)
1 drive 2
Liquid
6.35(1/4)
*2
Gas
9.52(3/8)
*2
1 drive 3
Liquid
6.35(1/4)
*3
Gas
9.52(3/8)
*3
1 drive 4
Liquid
6.35(1/4)
*4
Gas
9.52(3/8)
*3
12.7(1/2)
*
1
1 drive 5
Liquid
6.35(1/4)
*5
Gas
9.52(3/8)
*3
12.7(1/2)
*
2

Midea MCH4U-36PHH2 Specifications

General

Brand	Midea
Model	MCH4U-36PHH2
Category	Air Conditioner
Language	English