Midea M2OA-18HRDN1, User Manual

Page: 129 / 162

MCAC-HTSM-2007-11 Installation and operation instructions
Installation 127
1. Installation and operation instructions
CAUTIONS
For correct installation read this manual before starting installation and save this manual in a safe place for
future reference.
Only trained and qualified service personnel should install repair or service air conditioning equipment.
Users should not install the air conditioner by themselves.
Nominal cooling capacity of outdoor unit is tested under the condition that outdoor ambient dry/wet bulb
temperature is 35
°
C/24
°
C.Actual max. Output capacity depends on outdoor ambient temperature and
connection method, which may differ from nominal value. According to refrigeration system design and
operation requirement, this outdoor unit should work with indoor units with corresponding total capacity,
which ensures optimal performance and safe operation. To meet users' demand, this unit is specially
designed that unit can work even though required total capacity of indoor units exceeds nominal value.
Under this condition, actual output capacity of single indoor unit may be attenuated and less than nominal
value. We disclaim all responsibility for malfunction caused by users
’
noncompliance of this installation and
operation instructions.
Please read the instructions carefully and follow the requirements below:
1.1 Type of Indoor Unit
Type Nominal Capacity K But/h
Wall Mounted
7
9
12
Duct
7
9
12
18
Cassette
7
9
12
18
Floor and Ceiling
12
18
1.2 Connection Rules of DC Inverter One-two Split Type
Nominal
Capacity
K Btu/h
One indoor unit two indoor units
7
7
+7
9
+9
1
2+12
9
7
+9
9
+12
12
7
+12
DC inverter multi system connect different style indoor units, includes Wall Mounted type, Duct type,
Cassette type and Floor and Ceiling type. All type indoor units can be freely combined.
1.3 Connection Rules of DC Inverter One -three Split Type
Nominal
Capacity
K Btu/h
one indoor unit two indoor units three indoor units
7 7+7 9+9 12+12 7+7+7 7+9+12
9 7+9 9+12 7+7+9 7+12+12