Test Condition; Max. Refrigerant Piping Length; Max. Height Difference - Mitsubishi Electric Mr.Slim MSZ09UN Service Manual

Test condition

3, 4
Mode
SEER
ARI
"A" Cooling Steady State
(Cooling)
at rated compressor Speed
"B-2" Cooling Steady State
at rated compressor Speed
"B-1" Cooling Steady State
at minimum compressor Speed
Low ambient Cooling Steady State
at minimum compressor Speed
Intermediate Cooling Steady State
At Intermediate compressor Speed
HSPF
Standard Rating-Heating
(Heating)
at rated compressor Speed
Low temperature Heating
at rated compressor Speed
Max temperature Heating
at minimum compressor Speed
High temperature Heating
at minimum compressor Speed
Frost Accumulation
at rated compressor Speed
Frost Accumulation
at Intermediate compressor Speed
5 : At Intermediate compressor Speed
=("Cooling rated compressor speed" - "minimum compressor speed") / 3 + "minimum compressor speed".

MAX. REFRIGERANT PIPING LENGTH

Model
MSZ09UN MUZ09UN
MSZ12UN MUZ12UN

MAX. HEIGHT DIFFERENCE

w Height difference should be within
25ft. regardless of which unit,
indoor or outdoor position is high.
Test
5
5
Additional piping
Max. length : ft.
Outside
A
diameter
[ 3/8
49
[ 1/2
Indoor
unit
w Max. Height
difference 25ft.
Indoor air condition
Wet bulb
Dry bulb
80 67
80 67
80 67
80 67
80 67
70 60
70 60
70 60
70 60
70 60
70 60
Piping size : in.
Gas Liquid
Minimum
Minimum
Outside
Wall
Wall
diameter
thickness
thickness
0.0265
[ 1/4
0.0285
Refrigerant Piping
Max.length
A
7
(Unit : [˚F])
Outdoor air condition
Wet bulb
Dry bulb
95
82
82
67 (53.5)
87
47
17
62
47
35
35
Length of connecting pipe : in.
Indoor unit
Outdoor unit
Gas :
16-15/16
Gas :
Liquid :
19-11/16 Liquid :
Outdoor unit
(75)
(65)
(65)
(69)
43
15
56.5
43
33
33
0
0