Midea MDTA-76CRN2 User manual

MCAC-UTSM-12

Content

Part 1 General Information........................................... 1

Part 2 Indoor Units........................................................ 4

Part 3 Outdoor Units................................................... 50

Part 4 Installation........................................................ 65

Part 1 General Information

1. Model Names of Indoor/Outdoor Units.............................1

2. External Appearance..........................................................2

3. Nomenclature.....................................................................3

1. Model Names of Indoor/Outdoor Units

1.1 Model Names of Units with Cooling only:

Type

Indoor unit

Outdoor unit

Capacity

Model

Power

supply

Model

Power

supply

kBtu/h

Floor-standing

type

MDFA-76CRN2

220~240V-

1N-50Hz

MOV-76C-CN2

380~415V-

3N-50Hz

MDFA-96CRN2

MOV-96C-CN2

Mid-static

pressure duct

type

MDTA-76CRN2

MOV-76C-CN2

MDTA-96CRN2

MOV-96C-CN2

MDTA-120CRN2

MOV-120C-CN2

380~400V-

3N-50Hz

120

MCAC-UTSM-12

1.2 Model Names of Units with Cooling and heating:

Type

Indoor unit

Outdoor unit

Capacity

Model

Power

supply

Model

Power

supply

kBtu/h

Floor-standing

type

MDFA-76HRN2

220~240V-

1N-50Hz

MOV-76H-CN2

380~415V-

3N-50Hz

MDFA-96HRN2

MOV-96H-CN2

Mid-static

pressure duct

type

MDTA-76HRN2

MOV-76H-CN2

MDTA-96HRN2

MOV-96H-CN2

MDTA-120HRN2

MOV-120H-CN2

380~400V-

3N-50Hz

120

2. External Appearance

2.1 Indoor Units

MDTA-76C(H)RN2

MDTA-96C(H)RN2

MDFA-76C(H)RN2

MDFA-96C(H)RN2

MDTA-120C(H)RN2

MCAC-UTSM-12

MDOV-76C(H)-CN2

MDOV-96C(H)-CN2

MDOV-120C(H)-CN2

3. Nomenclature

3.1 Indoor unit:

MD TA

–

76 CRN2

N2：R407C；N1：R410a

R：Remote Controller

Function Code:

C: Cooling

H: Cooling and Heating

Cooling Capacity (76 kBtu/h)

Product Series

A: 1st

time design

B: 2nd

time design

Indoor Units

T: Medium static pressure duct type

F: Floor-standing type

H: High static pressure duct type

MDV

2.2 Outdoor Unit

MCAC-UTSM-12

Part 2 Indoor Units

Duct

Type

................................................................................

Floor-standing Type

.............................................................

Duct Type

1. Features

..............................................................................

2. Specifications

.....................................................................

3. Dimensions

.........................................................................

4. Service Space

.....................................................................

5. Refrigerant cycle

Diagrams

.............................................

6. Wiring Diagrams

...............................................................

7.Capacity Table

...................................................................

8. Static Pressure

.................................................................

9. Electric Characteristics

...................................................

10. Sound Levels

..................................................................

N2：R407C；

N1：R410a

Function Code：

C: Cooling Only

H: Heat pump

Cooling Capacity (76 kBtu/h)

Universal Outdoor Unit

Outdoor Unit

MDV

MD OV

76 CN2

3.2 Outdoor unit:

12. Troubleshooting.............................................................24

MCAC-UTSM-12

Model

MDTA-76CRN2

MDTA-76HRN2

MDTA-96CRN2

MDTA-96HRN2

Code

220070900201

220070900191

220070900181

220070900171

Power supply

220~240V-1N-50Hz

Rated input power

11500

14500

14700

Rated current

28.1

Cooling

Capacity

Btu/h

75,100

92,800

91,400

22000

27200

26800

Input

7500

9200

EER

W/W

2.93

2.96

2.91

Heating

Capacity

Btu/h

——

83600

——

109500

——

24500

——

32100

Input

——

7320

——

9800

COP

W/W

——

3.35

——

3.28

Indoor air flow

m3/h(CFM)

4650(2700)

5600(3300)

Indoor external static pressure

100

Indoor noise level

dB(A)

Refrigerant

Type

R407C

Control

Capillary

Fan

Type

Centrifugal fan

Fan model

SYZ9-9MD

Dimension

Φ307

Drive type/ Motor

step

Direct/ Single

Motor model

YDK300-4X

YDK550-4X

Motor Input * No.

720*2

1015*2

Motor speed

rpm

1040

1300

Coil

Type

Copper tube and

aluminum fin

Copper tube and

aluminum fin

Copper tube and

aluminum fin

Copper tube and

aluminum fin

Tube size

Ф9.52

No. of rows

Fin per inch

FPI

Length* height

1200*406

Controller

Remote controller

Drain pipe size

Ф41

Connection

wiring

Power wiring

mm2

3*2.5

Signal wiring

mm2

2*1.0

4*1.0

2*1.0

4*1.0

Indoor unit

Dimension

(W*H*D)

1350*450*760

Packing

(W*H*D)

1549*476*917

Net/Gross weight

105/120

Notes:

1. ESP: external static pressure

2. Nominal cooling capacities are based

on the following conditions:

Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB, 24°CWB; Equivalent refrigerant

piping: 7.5m (horizontal).

3. Nominal heating capacities are based on the following conditions:

Indoor temp: 20°CDB, 15°CWB; Outdoor temp: 7°CDB, 6°CWB; Equivalent refrigerant piping: 7.5m (horizontal).

2. Specifications

R407C R407C R407C

MCAC-UTSM-12

Model

MDTA-120CRN2

MDTA-120HRN2

Code

220070900161

220070900151

Power supply

220~240V-1N-50Hz

Rated input power

18000

Rated current

28.7

Cooling

Capacity

Btu/h

116,000

34000

Input

11900

EER

W/W

2.86

Heating

Capacity

Btu/h

——

139900

——

41000

Input

——

12600

COP

W/W

——

3.25

Indoor air flow

m3/h

6800

Indoor external static pressure

Pa 150

150

Indoor noise level

dB(A) 56

Refrigerant

Type

Control

- Capillary

Capillary

Fan

Type

- Centrifugal fan

Centrifugal fan

Fan model

- SYZ9-9MD

SYZ9-9MD

Dimension

mm Φ307

Φ307

Drive type/ Motor

step

- Direct/ Single

Direct/ Single

Motor model

- YDK300-4X

YDK300-4X

Motor Input * No.

W 720*3

720*3

Motor speed

rpm

1040/930/825

Coil

Type

Copper tube and

aluminum fin

Copper tube and

aluminum fin

Tube size

Ф7

No. of rows

Fin per inch

FPI

Length* height

1602*588

Controller

Remote controller

Drain pipe size

Ф41

Connection

wiring

Power wiring

mm2

3*2.5

Signal wiring

mm2

2*1.0

4*1.0

Indoor unit

Dimension

(W*H*D)

1828*638*858

Packing

(W*H*D)

2095*689*929

Net/Gross weight

188/220

Notes:

1. ESP: external static pressure

2. Nominal cooling capacities are based on the following conditions:

Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB, 24°CWB; Equivalent refrigerant piping: 7.5m (horizontal).

3. Nominal heating capacities are based on the following conditions:

Indoor temp: 20°CDB, 15°CWB; Outdoor temp: 7°CDB, 6°CWB; Equivalent refrigerant piping: 7.5m (horizontal).

R407C R407C

MCAC-UTSM-12

3. Dimensions

3.1 MDTA-76C(H)RN2, MDTA-96C(H)RN2

MCAC-UTSM-12

3.2 MDTA-120C(H)RN2

MCAC-UTSM-12

4. Service Space

Electric control box

Inspection hole

≥600mm≥500mm

Top view Side view

Inspection

Canvas adapter

Muffle

ir outlet Air inlet

Air filter

hole

Muffle

Air duct system

MCAC-UTSM-12

5. Refrigerant cycle diagrams

5.1 Cooling only: MDTA-76CRN2, MDTA-96CRN2, MDTA-120CRN2

Discharge temp. sensor

HP Switch

Liquid-gas seperator

Outdoor heat-exchanger

Stopvalve

Indoor unit

LP Switch

Cooling

Indoor

heat-exchanger

Capillary

Compressors

5.3 Cooling and heating: MDTA-76HRN2, MDTA-96HRN2, MDTA-120HRN2

Discharge temp. sensor

HP Switch

4-way valve

Liquid-gas seperator

Outdoor heat-exchanger

Stopvalve

Indoor unit

Checkvalve

LP Switch

Heating

Cooling

Indoor

heat-exchanger

Capillary

Compressors

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