Midea MTA1-76HR, MTA1-76CR, MTA1-96HR, MONB-76C, MONB-96H Technical Manual
...
Midea R22 T1 side-discharge duct manual MCAC-UTSM-201301-01
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Midea R22 T1 Side-discharge Outdoor Unit
& Duct Indoor Unit Technical Manual
Applicable Model:
Indoor unit Outdoor unit
MTA1-76HR MONB-76H
MTA1-76CR MONB-76C
MTA1-96HR MONB-96H
MTA1-96CR MONB-96C
Midea reserves the right to discontinue, or change specification or designs at any time without
notices and without incurring obligations.
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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Content
1. GENERAL INFORMATION ................................................................. 3
1.1 MEASUREMENTS ............................................................................................................ 3
1.2 EXTERNAL APPEARANCE ................................................................................................. 3
1.3 NOMENCLATURE ............................................................................................................. 4
2. SPECIFICATION & PERFORMANCE ................................................. 5
2.1FEATURES ...................................................................................................................... 5
2.2 REFRIGERANT CIRCUIT .................................................................................................... 6
2.3 UNIT STRUCTURE ........................................................................................................... 7
2.4 SPECIFICATIONS ............................................................................................................. 8
2.5 DIMENSION (UNIT: MM) .................................................................................................. 10
2.6 SERVICE SPACE ............................................................................................................. 11
2.7 WIRING DIAGRAM .......................................................................................................... 11
2.8 CAPACITY TABLES ......................................................................................................... 13
2.9 ELECTRIC CHARACTERISTICS .......................................................................................... 11
2.10 SOUND LEVELS .......................................................................................................... 12
2.11 STATIC PRESSURE CURVE ............................................................................................ 13
3. INSTALLATION ................................................................................. 14
3.1 INSTALLATING INDOOR UNITS ......................................................................................... 14
3.2 DESIGNING AND CONNECTING THE DUCT ......................................................................... 16
3.3 INSTALLING OUTDOOR UNITS .......................................................................................... 18
3.4 CONNECTING REFRIGERANT PIPE ................................................................................... 20
3.5 VACUUM ...................................................................................................................... 22
3.6 REFRIGERANT REPLENISHMENT QUANTITY ...................................................................... 24
3.7 LEAK DETECTION AND HEAT INSULATION ......................................................................... 25
3.8 INSTALL THE DRAIN PIPE ................................................................................................ 26
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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3.9 ELECTRIC CONNECTION ................................................................................................ 27
3.10 TRIAL RUN ................................................................................................................. 29
4. TROUBLE SHOOTING ..................................................................... 30
4.1 PHENOMENA NOT ATTRIBUTABLE TO FAULTS OF AIR CONDITIONER ...................................... 30
4.2 FAULTS OF AIR CONDITIONER AND CAUSE ........................................................................ 31
4.3 FAULTS OF REMOTE CONTROLLER AND CAUSE ................................................................. 32
4.4 INDOOR UNIT MALFUNCTION AND PROTECTION CODES ...................................................... 34
4.5 OUTDOOR UNIT MALFUNCTION AND PROTECTION CODES .................................................. 36
5. MAINTENANCE ................................................................................ 41
6. EXPLODED VIEW ............................................................................. 44
7. ACCESSORIES ................................................................................. 60
8. WIRELESS REMOTE CONTROLLER: R51/E (STANDARD) ........... 60
8.1 REMOTE CONTROLLER SPECIFICATIONS ......................................................................... 60
8.2 INTRODUCTION OF FUNCTION BUTTONS ON THE REMOTE CONTROLLER .............................. 61
8.3 NAMES AND FUNCTIONS OF INDICATORS ON REMOTE CONTROLLER ................................... 62
8.4 OPERATING THE REMOTE CONTROLLER .......................................................................... 63
9. WIRED CONTROLLER: KJR-10B (OPTIONAL) .............................. 67
9.1 REMOTE CONTROLLER SPECIFICATIONS .......................................................................... 67
9.2 INTRODUCTION OF FUNCTION BUTTONS ON THE WIRED CONTROLLER ................................. 68
9.3 NAMES AND FUNCTIONS OF INDICATORS ON WIRED CONTROLLER ...................................... 70
9.4 OPERATING THE WIRED CONTROLLER ............................................................................. 71
9.5 WIRED CONTROLLER INSTALLATION ................................................................................ 74
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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1. General information
1.1 Measurements
Type
Model
Dimension
(mm, W×H×D)
Power Supply
Cooling and heating 8HP
Indoor
MTA1-76HR
1,366×450×716
220-240V~, 50Hz, 1Ph
Outdoor
MONB-76H
1,120×1,558×400
380-415V~, 3Ph, 50Hz
Cooling only 8HP
Indoor
MTA1-76CR
1,366×450×716
220-240V~, 50Hz, 1Ph
Outdoor
MONB-76C
1,120×1,558×400
380-415V~, 3Ph, 50Hz
Cooling and heating 10HP
Indoor
MTA1-96HR
1,366×450×716
220-240V~, 50Hz, 1Ph
outdoor
MONB-96H
1,120×1,558×400
380-415V~, 3Ph, 50Hz
Cooling only 10HP
indoor
MTA1-96CR
1,366×450×716
220-240V~, 50Hz, 1Ph
Outdoor
MONB-96C
1,120×1,558×400
380-415V~, 3Ph, 50Hz
1.2 External appearance
Duct type indoor unit Side-discharge outdoor unit
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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1.3 Nomenclature
Indoor unit
Outdoor unit
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2. Specification & performance
2.1Features
High capacity of cooling and heating, and energy saving.
Thin size, even can installed at limited place.
All round steel shell, for high quality protection of transportation.
Convenient installation, hidden in the ceiling, unit installation is not hindered by the location of lighting
fixtures or room structure.
Air inlet and outlet flanges are standard and easy for duct connection.
Multi diffusers from one indoor unit supply airflow to multi rooms at the same time. The unit is suitable
for various applications where there are many rooms or halls, such as restaurants, connect halls and
hotels.
High efficient scroll compressor, with thermal protectors to prevent motor overheating.
Easy maintenance.
Only remove the bottom panel, the fan-motor assembly can be drawn out.
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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2.2 Refrigerant circuit
Compressor: R22, scroll compressor is supplied by Hitachi.
Evaporator (Heat exchanger): Copper tube and aluminum fin type heat exchanger.
Fan: Two axial fans adopting two speed levels.
High Pressure Switch: When the discharge pressure of compressor is up to 3.3MPa or higher, the
protection switch will be triggered, and if the discharge pressure is down to 2.4MPa, the protection
switch will be recovered.
Low Pressure Switch: When the suction pressure of compressor equals to 0.05MPa or less, the
protection switch will be triggered, and if the pressure is up to 0.15MPa, the protection switch will be
recovered.
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2.3 Unit structure
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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2.4 Specifications
Model
MTA1-76HR
MTA1-76CR
MTA1-96HR
MTA1-96CR
Power supply
220-240V~, 1Ph, 50Hz
220-240V~, 1Ph, 50Hz
Cooling
Capacity
Btu/h
76,000
76,000
96,000
96,000
W
22,300
22,300
28,100
28,100
Input
W
8,100
8,100
10,300
10,300
EER
W/W
2.75
2.75
2.75
2.75
Heating
Capacity
Btu/h
83,600
\
109,500
\ W 24,500
\
32,000
\
Input
W
8,000
\
10,300
\
COP
W/W
3.06 \ 3.11
\
Rated input
W
1,100
1,100
1,300
1,300
Rated current
A
4.8
4.8
5.7
5.7
Motor
Model (×quantity)
\
YDK250-4X(×2)
YDK300-4X(×2)
Input (hi/mid/lo)
W
588/484/408
588/484/408
782/677/587
782/677/587
Capacitor
\
15μF/450V
15μF/450V
15μF/450V
15μF/450V
Speed (hi/mid/lo)
r/min
930/840/770
930/840/770
1060/955/865
1060/955/865
Coil
Number of rows
\ 4 4 4 4
Tube pitch× row pitch
mm
21×13.37
21×13.37
21×13.37
21×13.37
Fin spacing
mm
1.5
1.5
1.5
1.5
Fin type \ Hydrophilic aluminum fin
Hydrophilic aluminum fin
Pipe type/size \ Inner grooved copper pipe/Ф7mm
Coil(W×H)
mm
1,202×378
1,202×378
1,202×378
1,202×378
Number of circuits
\
8+7
8+7
5+4
5+4
Indoor air flow
m3/h
4,500
4,500
5,100
5,100
External static pressure
Pa
100
100
100
100
Indoor noise level
dB(A)
55
55
55
55
Refrigerant type
\
R22
R22
R22
R22
Design pressure
MPa
3.3/2.2
3.3/2.2
3.3/2.2
3.3/2.2
Refrigerant
piping
Liquid side/ Gas side
mm
(Ф9.52/Ф19) ×2
(Ф9.52/Ф19) ×2
Max. pipe length
m
50
50
50
50
Max. difference in level
m
25
25
25
25
Connecting
wire
Power wire
\
3×2.5mm2
3×2.5mm2
3×2.5mm2
3×2.5mm2
Signal wire
\
4×1.0mm2
2×1.0mm2
4×1.0mm2
2×1.0mm2
Drain pipe size (OD)
mm
Ф41
Ф41
Ф41
Ф41
Controller
\
R51/E
R51/CE
R51/E
R51/CE
Net dimension(W×H×D)
mm
1,366×450×716
1,366×450×716
Packing dimension(W×H×D)
mm
1,555×500×875
1,555×500×875
Net/Gross weight
kg
93/105
93/105
96/108
96/108
Notes:
The test conditions: Cooling: Indoor temperature: 27°CDB, 19°CWB; Outdoor temperature: 35°CDB, 24°CWB.
Heating: Indoor temperature: 20°CDB, 15°CWB; Outdoor temperature: 7°CDB, 6°CWB.
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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Model
MONB-76H
MONB-76C
MONB-96H
MONB-96C
Power supply
380-415V~, 3Ph, 50Hz
380-415V~, 3Ph, 50Hz
Ambient temp in cooling
°C
17～43
17～43
17～43
17～43
Ambient temp in heating
°C
-7~24
\
-7~24
\
Rated input
W
10,600
10,600
13,600
13,600
Rated current
A
17.2
17.2
21.3
21.3
Compressor
Model \ 403DH-64D2-X10J1
503DH-80D2-X10J1
Type
\
Scroll
Scroll
Qty.
\
2
2
Brand
\
Hitachi
Hitachi
Capacity W 11,800
14,900
Input W 3,600
4,400
Rated current (RLA)
A
6.3
7.5
Locked rotor Amp A 42.1
53
Thermal protector
\
Internal (UP18UC188-77G)
Internal (UP18TC16M-77G)
Refrigerant oil
ml
1,200 (SUNISO 4GSD)
1,400 (SUNISO 4GSD)
Fan
Type \ Axial fan
Axial fan
Axial fan
Axial fan
Motor Model × Quantity
\
YDK165-6E(B)×2
YDK165-6E(B)×2
Motor Input
W
280/160
280/160
280/160
280/160
Capacitor
\
10μF/450V
10μF/450V
10μF/450V
10μF/450V
Speed (Hi/Lo)
r/min
850/520
850/520
850/520
850/520
Coil
No. of rows \ 1.6
1.6 2 2
Tube pitch × row pitch
mm
21×13.37
21×13.37
21×13.37
21×13.37
Fin spacing
mm
1.5
1.5
1.5
1.5
Fin type \ Hydrophilic aluminum fin
Hydrophilic aluminum fin
Pipe size and type
mm
Ф7
Ф7
Ф7
Ф7
Inner grooved copper pipe
Inner grooved copper pipe
Coil (W×H)
mm
1,090×1,512
1,090×1,512
1,080×1,512
1,080×1,512
Number of circuits
\
18
18
18
18
Outdoor noise level
dB(A)
60
60
60
60
Refrigerant
Type/Charge
\
R22/2.3kg×2
R22/2.3kg×2
R22/2.7kg×2
R22/2.7kg×2
Design pressure
MPa
3.3/2.2
3.3/2.2
3.3/2.2
3.3/2.2
Refrigerant
piping
Liquid side/ Gas side
mm
(Ф9.52/Ф19.1) ×2
(Ф9.52/Ф19.1) ×2
Max. pipe length
m
50
50
50
50
Max. difference in level
m
25
25
25
25
Connection
wiring
Power wire
\
5×6.0mm2
5×6.0mm2
5×6.0mm2
5×6.0mm2
Signal wire
\
4×1.0mm2
2×1.0mm2
4×1.0mm2
2×1.0mm2
Net dimension (W×H×D)
mm
1,120×1,558×400
1,120×1,558×400
Packing dimension (W×H×D)
mm
1,270×1,720×565
1,270×1,720×565
Net/ Gross weight
kg
180/198
175/193
185/202
180/198
Notes:
The test conditions: Cooling: Indoor temperature: 27°CDB, 19°CWB; Outdoor temperature: 35°CDB, 24°CWB.
Heating: Indoor temperature: 20°CDB, 15°CWB; Outdoor temperature: 7°CDB, 6°CWB.
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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2.5 Dimension (Unit: mm)
Indoor unit
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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Outdoor unit
2.6 Service space
Indoor unit
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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Outdoor unit
Top view of the outdoor unit (single unit installed)
Top view of the outdoor unit (multiple units installed)
Midea R22 T1 side-discharge duct manual MCAC-UTSM-201301-01
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2.7 Wiring diagram
MTA1-76HR, MTA1-96HR
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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MTA1-76CR, MTA1-96CR
Midea R22 T1 side-discharge duct manual MCAC-UTSM-201301-01
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MONB-76H, MONB-96H
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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MONB-76C, MONB-96C
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2.8 Capacity tables
Cooling: MTA1-76HR
Gross Cooling Capacity (kW)
Outdoor DB(°C )
29.40
35.00
Indoor
WB(°C )
16.10
19.40
22.80
16.10
19.40
22.80
CFM
DB(℃)
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
2200
23.90
13.0
8.7
4.8
13.7
9.1
5.1
14.3
9.6
5.3
15.1
10.0
5.6
15.8
10.5
5.9
16.6
11.1
6.1
26.70
13.5
10.4
5.0
14.2
10.9
5.3
14.9
11.5
5.5
15.7
12.0
5.8
16.4
12.6
6.1
17.3
13.3
6.4
29.40
14.1
11.7
5.2
14.8
12.3
5.5
15.5
12.9
5.7
16.3
13.6
6.0
17.1
14.2
6.3
18.0
15.0
6.6
32.20
14.6
13.3
5.4
15.4
14.0
5.7
16.1
14.7
6.0
16.9
15.4
6.3
17.8
16.2
6.6
18.7
17.0
6.9
2450
23.90
15.2
10.1
5.6
16.0
10.7
5.9
16.8
11.2
6.2
17.6
11.7
6.5
18.5
12.3
6.8
19.4
12.9
7.2
26.70
15.8
12.2
5.9
16.6
12.8
6.2
17.4
13.4
6.5
18.3
14.1
6.8
19.2
14.8
7.1
20.2
15.5
7.5
29.40
16.5
13.7
6.1
17.3
14.4
6.4
18.1
15.1
6.7
19.0
15.9
7.1
20.0
16.7
7.4
21.0
17.5
7.8
32.20
17.1
15.6
6.3
18.0
16.3
6.7
18.9
17.2
7.0
19.8
18.0
7.3
20.8
18.9
7.7
21.8
19.9
8.1
2650
23.90
17.8
11.9
6.6
18.7
12.5
6.9
19.6
13.1
7.3
20.6
13.7
7.6
21.6
14.4
8.0
22.7
15.1
8.4
26.70
18.5
14.2
6.9
19.4
15.0
7.2
20.4
15.7
7.6
21.4
16.5
7.9
22.5
17.3
8.3
23.6
18.2
8.8
29.40
19.1
15.9
7.1
20.0
16.7
7.4
21.0
17.5
7.8
22.1
18.4
8.2
23.2
19.3
8.6
24.3
20.3
9.0
32.20
19.6
17.9
7.3
20.6
18.7
7.6
21.7
19.7
8.0
22.7
20.7
8.4
23.9
21.7
8.8
25.1
22.8
9.3
2900
23.90
20.2
13.5
7.5
21.2
14.2
7.9
22.3
14.9
8.3
23.4
15.6
8.7
24.6
16.4
9.1
25.8
17.2
9.6
26.70
20.8
16.0
7.7
21.9
16.8
8.1
23.0
17.7
8.5
24.1
18.6
8.9
25.3
19.5
9.4
26.6
20.5
9.8
29.40
21.5
17.9
7.9
22.5
18.8
8.3
23.7
19.7
8.8
24.8
20.7
9.2
26.1
21.7
9.7
27.4
22.8
10.1
32.20
22.1
20.1
8.2
23.2
21.1
8.6
24.4
22.2
9.0
25.6
23.3
9.5
26.9
24.4
10.0
28.2
25.6
10.4
Notes:
DB= Dry Bulb temperature; WB= Wet Bulb Temperature
TGC= Total Cooling Capacity (Unit: kW)
SHC= Sensible Heating Capacity (Unit: kW)
PI = Power Input (Unit: kW)
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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Outdoor DB(°C )
40.60
46.10
Indoor
WB(°C )
16.10
19.40
22.80
16.10
19.40
22.80
CFM
DB(°C )
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
2200
23.90
11.7
7.8
6.8
12.3
8.2
7.2
12.9
8.6
7.5
13.6
9.1
7.9
14.3
9.5
8.3
15.0
10.0
8.7
26.70
12.2
9.4
7.1
12.8
9.9
7.4
13.5
10.3
7.8
14.1
10.9
8.2
14.8
11.4
8.6
15.6
12.0
9.1
29.40
12.7
10.6
7.4
13.3
11.1
7.7
14.0
11.7
8.1
14.7
12.2
8.5
15.4
12.9
9.0
16.2
13.5
9.4
32.20
13.2
12.0
7.7
13.9
12.6
8.1
14.6
13.2
8.5
15.3
13.9
8.9
16.0
14.6
9.3
16.8
15.3
9.8
2450
23.90
13.7
9.2
8.0
14.4
9.6
8.4
15.1
10.1
8.8
15.9
10.6
9.2
16.7
11.1
9.7
17.5
11.7
10.2
26.70
14.3
11.0
8.3
15.0
11.5
8.7
15.7
12.1
9.1
16.5
12.7
9.6
17.4
13.3
10.1
18.2
14.0
10.6
29.40
14.8
12.4
8.6
15.6
13.0
9.1
16.4
13.6
9.5
17.2
14.3
10.0
18.0
15.0
10.5
18.9
15.8
11.0
32.20
15.4
14.0
9.0
16.2
14.7
9.4
17.0
15.5
9.9
17.9
16.2
10.4
18.8
17.1
10.9
19.7
17.9
11.5
2650
23.90
16.1
10.7
9.3
16.9
11.2
9.8
17.7
11.8
10.3
18.6
12.4
10.8
19.5
13.0
11.3
20.5
13.7
11.9
26.70
16.7
12.8
9.7
17.5
13.5
10.2
18.4
14.2
10.7
19.3
14.9
11.2
20.3
15.6
11.8
21.3
16.4
12.4
29.40
17.2
14.3
10.0
18.1
15.1
10.5
19.0
15.8
11.0
19.9
16.6
11.6
20.9
17.4
12.2
22.0
18.3
12.8
32.20
17.7
16.1
10.3
18.6
16.9
10.8
19.5
17.8
11.4
20.5
18.6
11.9
21.5
19.6
12.8
22.6
20.6
13.1
2900
23.90
18.2
12.2
10.6
19.2
12.8
11.1
20.1
13.4
11.7
21.1
14.1
12.3
22.2
14.8
13.1
23.3
15.5
13.5
26.70
18.8
14.5
10.9
19.7
15.2
11.5
20.7
15.9
12.0
21.8
16.7
12.6
22.8
17.6
13.5
24.0
18.5
13.9
29.40
19.4
16.1
11.3
20.3
16.9
11.8
21.3
17.8
12.4
22.4
18.7
13.0
23.5
19.6
13.9
24.7
20.6
14.4
32.20
19.9
18.1
11.6
20.9
19.0
12.2
22.0
20.0
12.8
23.1
21.0
13.4
24.2
22.0
14.4
25.5
23.1
14.8
Notes:
DB= Dry Bulb temperature; WB= Wet Bulb Temperature
TGC= Total Cooling Capacity (Unit: kW)
SHC= Sensible Heating Capacity (Unit: kW)
PI = Power Input (Unit: kW)
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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Cooling: MFA1-96
Gross Cooling Capacity (kW)
Outdoor DB(°C )
29.40
35.00
Indoor
WB(°C )
16.10
19.40
22.80
16.10
19.40
22.80
CFM
DB(°C )
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
2470
23.90
16.2
10.8
6.0
17.1
11.4
6.3
17.9
11.9
6.6
18.8
12.5
7.0
19.7
13.2
7.3
20.7
13.8
7.7
26.70
16.9
13.0
6.3
17.7
13.6
6.6
18.6
14.3
6.9
19.6
15.0
7.2
20.5
15.8
7.6
21.6
16.6
8.0
29.40
17.6
14.6
6.5
18.4
15.4
6.8
19.4
16.1
7.2
20.3
16.9
7.5
21.4
17.8
7.9
22.4
18.7
8.3
32.20
18.3
16.6
6.8
19.2
17.4
7.1
20.1
18.3
7.5
21.2
19.2
7.8
22.2
20.2
8.2
23.3
21.2
8.6
2700
23.90
19.0
12.7
7.0
20.0
13.3
7.4
20.9
14.0
7.8
22.0
14.7
8.1
23.1
15.4
8.6
24.3
16.2
9.0
26.70
19.8
15.2
7.3
20.7
16.0
7.7
21.8
16.8
8.1
22.9
17.6
8.5
24.0
18.5
8.9
25.2
19.4
9.3
29.40
20.6
17.1
7.6
21.6
18.0
8.0
22.7
18.9
8.4
23.8
19.8
8.8
25.0
20.8
9.3
26.2
21.9
9.7
32.20
21.4
19.4
7.9
22.4
20.4
8.3
23.6
21.4
8.7
24.7
22.5
9.2
26.0
23.6
9.6
27.3
24.8
10.1
3000
23.90
22.2
14.8
8.2
23.3
15.6
8.6
24.5
16.3
9.1
25.7
17.2
9.5
27.0
18.0
10.0
28.4
18.9
10.5
26.70
23.1
17.8
8.6
24.3
18.7
9.0
25.5
19.6
9.4
26.8
20.6
9.9
28.1
21.6
10.4
29.5
22.7
10.9
29.40
23.8
19.8
8.8
25.0
20.8
9.3
26.3
21.9
9.7
27.6
23.0
10.2
28.9
24.1
10.7
30.4
25.3
11.3
32.20
24.5
22.3
9.1
25.8
23.4
9.5
27.0
24.6
10.0
28.4
25.8
10.5
29.8
27.1
11.0
31.3
28.5
11.6
3300
23.90
25.3
16.8
9.4
26.5
17.7
9.8
27.9
18.6
10.3
29.2
19.5
10.8
30.7
20.5
11.4
32.2
21.5
11.9
26.70
26.0
20.0
9.6
27.3
21.0
10.1
28.7
22.1
10.6
30.1
23.2
11.2
31.6
24.3
11.7
33.2
25.5
12.3
29.40
26.8
22.3
9.9
28.1
23.5
10.4
29.5
24.6
10.9
31.0
25.9
11.5
32.6
27.1
12.1
34.2
28.5
12.7
32.20
27.6
25.1
10.2
29.0
26.3
10.7
30.4
27.7
11.3
32.0
29.1
11.8
33.6
30.5
12.4
35.2
32.0
13.0
Notes:
DB= Dry Bulb temperature; WB= Wet Bulb Temperature
TGC= Total Cooling Capacity (Unit: kW)
SHC= Sensible Heating Capacity (Unit: kW)
PI = Power Input (Unit: kW)
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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Gross Cooling Capacity (kW)
Outdoor DB(°C )
40.60
46.10
Indoor
WB(°C )
16.10
19.40
22.80
16.10
19.40
22.80
CFM
DB(°C )
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
TGC
SHC
PI
2470
23.90
14.7
9.8
8.8
15.5
10.3
9.3
16.3
10.8
9.8
17.1
11.4
10.2
17.9
11.9
10.7
18.8
12.5
11.3
26.70
15.3
11.8
9.2
16.1
12.4
9.7
16.9
13.0
10.1
17.7
13.7
10.6
18.6
14.3
11.2
19.6
15.0
11.7
29.40
15.9
13.3
9.6
16.7
13.9
10.0
17.6
14.6
10.5
18.5
15.4
11.1
19.4
16.1
11.6
20.3
17.0
12.2
32.20
16.6
15.1
9.9
17.4
15.8
10.4
18.3
16.6
11.0
19.2
17.4
11.5
20.2
18.3
12.1
21.2
19.2
12.7
2700
23.90
17.2
11.5
10.3
18.1
12.1
10.9
19.0
12.7
11.4
20.0
13.3
12.0
21.0
14.0
12.6
22.0
14.7
13.2
26.70
17.9
13.8
10.8
18.8
14.5
11.3
19.8
15.2
11.9
20.8
16.0
12.5
21.8
16.8
13.1
22.9
17.6
13.7
29.40
18.7
15.5
11.2
19.6
16.3
11.7
20.6
17.1
12.3
21.6
18.0
13.0
22.7
18.9
13.6
23.8
19.8
14.3
32.20
19.4
17.6
11.6
20.4
18.5
12.2
21.4
19.4
12.8
22.5
20.4
13.5
23.6
21.4
14.1
24.8
22.5
14.9
3000
23.90
20.2
13.4
12.1
21.2
14.1
12.7
22.2
14.8
13.3
23.4
15.6
14.0
24.5
16.3
14.7
25.7
17.2
15.4
26.70
21.0
16.1
12.6
22.0
16.9
13.2
23.1
17.8
13.9
24.3
18.7
14.6
25.5
19.6
15.3
26.8
20.6
16.1
29.40
21.6
18.0
13.0
22.7
18.9
13.6
23.8
19.9
14.3
25.0
20.8
15.0
26.3
21.9
15.8
27.6
23.0
16.5
32.20
22.3
20.2
13.4
23.4
21.2
14.0
24.5
22.3
14.7
25.8
23.4
15.5
27.1
24.6
16.2
28.4
25.8
17.0
3300
23.90
22.9
15.3
13.8
24.1
16.0
14.4
25.3
16.8
15.2
26.5
17.7
15.9
27.9
18.6
16.7
29.3
19.5
17.6
26.70
23.6
18.2
14.2
24.8
19.1
14.9
26.0
20.0
15.6
27.3
21.0
16.4
28.7
22.1
17.2
30.1
23.2
18.1
29.40
24.3
20.3
14.6
25.5
21.3
15.3
26.8
22.3
16.1
28.2
23.5
16.9
29.6
24.6
17.7
31.0
25.9
18.6
32.20
25.0
22.8
15.0
26.3
23.9
15.8
27.6
25.1
16.6
29.0
26.4
17.4
30.4
27.7
18.3
32.0
29.1
19.2
Notes:
DB= Dry Bulb temperature; WB= Wet Bulb Temperature
TGC= Total Cooling Capacity (Unit: kW)
SHC= Sensible Heating Capacity (Unit: kW)
PI = Power Input (Unit: kW)
Midea R22 T1 side-discharge duct manual MCAC-UTSM-201301-01
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2.9 Electric characteristics
Model
Indoor unit
Power supply
IFM
Hz
Voltage
Min.
Max.
MCA
MFA
kW
FLA
MTA1-76HR
50
220~240
198
254
6.2
15
0.5
4.96
MTA1-76CR
50
220~240
198
254
6.2
15
0.5
4.96
MTA1-96HR
50
220~240
198
254
8.6
15
0.6
6.9
MTA1-96CR
50
220~240
198
254
8.6
15
0.6
6.9
Notes:
MCA: Min. Current Amps. (A)
MFA: Max. Fuse Amps. (A)
kW: Fan Motor Rated Output (kW)
FLA: Full Load Amps. (A)
IFM: Indor Fan Motor
Model
Outdoor Unit
Power Supply
Compressor
OFM
Hz
Voltage
Min.
Max.
MCA
TOCA
MFA
MSC
RLA
kW
FLA
MONB-76H
50
380~415
342
440
15.5
19.3
23.2
42.1
6.3
0.33
2.7
MONB-76C
50
380~415
342
440
15.5
19.3
23.2
42.1
6.3
0.33
2.7
MONB-96H
50
380~415
342
440
19.8
23.7
27.5
53
7.5
0.33
2.7
MONB-96C
50
380~415
342
440
19.8
23.7
27.5
53
7.5
0.33
2.7
Notes:
MCA: Min. Current Amps. (A) MFA: Max. Fuse Amps. (A)
TOCA: Total Over-current Amps. (A) MSC: Max. Starting Amps. (A)
RLA: Rated Locked Amps. (A) OFM: Outdoor Fan Motor
kW: Rated Motor Output (Kw) FLA: Full Load Amps. (A)
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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2.10 Sound levels
Indoor units
Model
Noise level
MTA1-76HR
55 dB(A)
MTA1-76CR
55 dB(A)
MTA1-96HR
55 dB(A)
MTA1-96CR
55 dB(A)
Outdoor units
As the following picture, the nominal noise level is the maximum value between the tested value from
three sides.
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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Model
Noise level
MONB-76H
60 dB(A)
MONB-76C
60 dB(A)
MONB-96H
60 dB(A)
MONB-96H
60 dB(A)
2.11 Static pressure curve
MTA1-76
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
14
MTA1-96
3. Installation
3.1 Installating indoor units
As the following picture, when install the indoor unit, select the enough solid and level site with
enough space for installation and maintance.
The inspection orifice should be larger than the units.
MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual
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Use Ф10 or bigger screws. The screw material is high-quality carbon steel whose surface is zinc
plated or undergoes other anti-rust treatment, or stainless steel.
Fix the pendant bolts firmly and reliably in light of the specifice situsation.
The pendant bolt hole figure is as following picture.
When the pandant bolt is fixed in wooden structure, please put rectanglar sticks across the
beams, and set pendant bolts.
When in the new concrete roughcast environment, please use embedded bolts, embedded
pulling plugs and stick harness. On steel bar have some holes to hang pipe and embed screw
bolts.
.
Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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When in steel beam and girder structure, set and use supportive angle steel.
After install the indoor units, use a hoisting device to hoist the indoor unit, and align it with the
installation screws to adjust the horizontality. Finally, Tighten the screws.
3.2 Designing and connecting the duct
The duct accessories and materials must be produced by professional manufacturers.
Int order to prevent air flow shoting, do not set the air inlet orifice near the air outlet orifice.
Install a filter at an easy-to-maintain place such as intake pipe. If without the filter, the duct will
gether on the air heat exchanger and lead to fault and water leak of the air conditioner.
In order to suppress noise effectively, install noise suppression and sound insulation devices,
especially in the noise-sensitive spaces such as meeting rooms.
For connection of the flange plane, use non-flammable canvas adapter to prevent transmission
of vibration. Use M6×20 screws (configured on site) for connection.
View of air outlet side
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