Midea MLCAC-UTSM-2010-10 User manual

MIDEA LCAC
50Hz R410A DC Inverter
Service Manual
2011

MLCAC-UTSM-2010-10 Contents
Contents i
Part 1 General Information ................................................................................................. 1
Part 2 Indoor Units .............................................................................................................. 6
Part 3 Outdoor Units ......................................................................................................... 67
Part 4 Installation .............................................................................................................. 96
Part 5 Control................................................................................................................... 107
※The specifications, designs, and information in this book are subject to change without notice for
product improvement.

MLCAC-UTSM-2010-10 General Information
General Information 1
Part 1
General Information
1. Model Names of Indoor/Outdoor Units...........................2
2. External Appearance ........................................................3
2.1 Indoor Units ................................................................................. 3
2.2 Outdoor Units .............................................................................. 3
3. Nomenclature....................................................................4
4. Features .............................................................................5

Model Names of Indoor/Outdoor Units MLCAC-UTSM-2010-10
2 General Information
Model Names of Indoor/Outdoor Units
1.1 Indoor Units
R410A (capacity multiplied by 1000Btu/h)
Type Function 36 48
Four-way cassette Cooling and heating √√
Duct Cooling and heating √√
Ceiling & floor Cooling and heating √√
1.2 Outdoor Units
Model of outdoor unit and corresponding indoor unit
Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units
MOUB-36HDN1-Q Rotary DC Inverter GUANGZHOU MITSUBISHI MTB-36HWDN1
MUB-36HRDN1
MCC-36HRDN1
MOUB-36HDN1-R Rotary DC Inverter GUANGZHOU MITSUBISHI
MOU-48HDN1 Rotary DC Inverter GUANGZHOU MITSUBISHI MTB-48HWDN1
MUB-48HRDN1
MCC-48HRDN1
MOUB-48HDN1-R Rotary DC Inverter GUANGZHOU MITSUBISHI

MLCAC-UTSM-2010-10 External Appearance
General Information 3
External Appearance
2.1 Indoor Units
Duct Ceiling & Floor
Four-way Cassette
2.2 Outdoor Units
MOUB-36HDN1-R
MOUB-36HDN1-Q,
MOU-48HDN1, MOUB-48HDN1-R

Nomenclature MLCAC-UTSM-2010-10
4 General Information
Nomenclature
1.1 Indoor Unit
M U B - 18 H R D N1
Refrigerant Type
N1 R410A
DC Inverter
Control Mode
R Remote Control
Function Code
C cooling Only
H cooling & Heating
Capacity (¡ Á1000Btu/h)
Product Series
A First Time Design BSecond Time Design
C Third Time Design
Product Category
C Cassette Type
T Duct Type
U Ceiling & Floor Type
H High Static Pressure Duct Type
Midea
3.2 Outdoor Unit
M O U D - 60 H D N1- R
Power Supply
R 380~415V, 3N, 50Hz
-- 220~240V, 1N, 50Hz
Refrigerant
N1 R410A
DC Inverter
Function Code
C cooling only Hcooling & heating
Capacity (¡ Á1000Btu/h)
Product Series
A Time A Designed BTime B Designed
C Time C Designed D Time D Designed
Universal Outdoor Unit
O Outdoor unit U Universal
Midea
FConsole Type

MLCAC-UTSM-2010-10 Features
General Information 5
Features
4.1 Universal outdoor unit design
Indoor unit with the same capacity can match with the same outdoor unit.
4.2 High efficiency and energy saving.
Thanks to the DC inverter technology and optimized piping system, the EER and COP of whole
series can easily reach A-class.
4.3 Low noise and low starting current.
Thanks to the DC inverter technology, the system can work with low noise, and very small starting
current.
4.4 Intelligent refrigerant adjustment technology.
Throttle part is made up of capillary and electronic expansion valve (EXV). The outdoor unit can
output the most accurate capacity in any condition.
4.5 Working in cooling mode under -15℃.
Outdoor unit built-in with low ambient kit, it can control the outdoor unit’s fan and cooling can be
performed throughout the year for computer rooms, banquet halls, etc. Wide operation range
covers outdoor temperatures as low as -15℃for cooling.
4.6 Indoor & outdoor unit’s power supply is separate.
4.7 All indoor units have network control function.
4.8 All indoor units have Auto-restart function.

Indoor Units MLCAC-UTSM-2010-06
6 Indoor Units
Part 2
Indoor Units
Four-way Cassette Type.......................................................7
Duct Type.............................................................................20
Ceiling & Floor Type ...........................................................31