Midea MDV-V105W/DN1 Operating manual

1 phase, 220-240V, 50Hz

MDV-V80W/DN1

MDV-V105W/DN1

MDV-V120W/DN1

MDV-V140W/DN1

MDV-V160W/DN1(B)

Model:

Technical Service Manual

Mini VRF

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF

Contents

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

Part 2 Specifications & Performance...............................................................10

Part 3 Installation ..............................................................................................63

Part 4 Troubleshooting.....................................................................................77

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF

General Information 1

Part 1 General Information

1. Product Lineup................................................................................................2

2. Nomenclature ..................................................................................................3

3. Features...........................................................................................................4

4. Indoor Units Lineup ........................................................................................8

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10

2 General Information

1. Product Lineup

Outdoor Units

80/105 Model 120~160 Model

Model name

Dimension body(mm)

Net/Gross weight (kg)

Power supply

MDV-V80W/DN1

Width:1075

Height:966

Depth:336

62/67

220~240V-1ph 50Hz

MDV-V105W/DN1

Width:1075

Height: 966

Depth:336

74/81

220~240V-1ph 50Hz

MDV-V120W/DN1

Width:900

Height:1327

Depth:400

95/106

220~240V-1ph 50Hz

MDV-V140W/DN1

Width:900

Height:1327

Depth:400

95/106

220~240V-1ph 50Hz

MDV-V160W/DN1(B)

Width:900

Height:1327

Depth:400

100/111

220~240V-1ph 50Hz

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF

General Information 3

2. Nomenclature

M D V - V 105 W / D N1

*Note: the actual cooling capacity please refer to the nameplate.

Refrigerant type

N1:R410A

Inverter Type

D: DC Inverter

W: Outdoor unit

Cooling Capacity (×100W)*

Inverter System

Midea

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10

4 General Information

3. Features

3.1 Wide application

The all DC Inverter Mini VRF system is a highly efficient solution for small commercial buildings requiring

heating and cooling of up to 7 zones with one outdoor unit. Such as villa, restaurant, school etc.

Midea offers a variety indoor unit, about 100 models of 10 types. Capacity ranges are from 1.5kW to 16 kW. It

is full compliance with residential and light commercial place. Our systems can operate up to 130% of

capacity which allows any system to be designed to the customers and applications needs.

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF

General Information 5

Compressor

(Twin Rotary) structure

3.2 High efficient DC inverter compressor

All DC inverter Mini VRF adopts highly intelligent inverter-driven compressor. This advanced technology enables the output of

the outdoor unit to be modulated by the real heat load demands.

This advanced system ensures precise temperature regulation and highly efficient energy usage, making a significant

contribution to the limiting the impact on the environment.

3.3 High performance heat exchanger

The new designed window fins enlarge the heat-exchanging area,

which decrease the air resistance, save more power and enhance heat

exchange performance.

Hydrophilic film fins and inner-threaded copper pipes optimize heat

exchange efficiency.

3.4 Low-operating sound design

Optimally design fan shape and new designed discharge air grille and air deflector, making higher air volume

and lower operation sound.

3.5 Quick warm-up & cool-down design and less temperature fluctuation

Utilizing the inverter compressor benefits,

the system can reach full load quickly and

shorten warm-up or cool-down time for an

immediate comfortable air solution.

Less temperature fluctuation will create a

better living environment. Used across entire range of models.

Efficiency improvement by up to 45% especially at low speed.

New fan

Air deflector

New grille

Highly Efficient DC Motor:

- Creative motor core design

- High density neodymium magnet

- Concentrated type stator

-Wider operating frequency range

Better balance and Extremely Low Vibration:

- Twin eccentric cams

- 2 balance weights

Highly Stable Moving Parts:

- Optimal material matching rollers and vanes

-Optimize compressor drive technology

- Highly robust bearings

-Compact structure

Fluctuation of room temperature

Cooling operation

Temp.

Time

Notn-inverter

Inverter

New design Original design

High efficiency inner-thread pipe,

enhance heat transfer.

R410AAll DC Inverter Mini VRF MCAC-VTSM-2016-10

6 General Information

3.6 Wide operation temperature range

No matter in extremely cold winter when outdoor

temperature gets as low as -15°C or in hot summer

when temperature is up to 43°C, the Mini VRF

system will keep stable performance.

3.7 Flexible piping design

3.8 Flexible indoor unit’s connection

Mini VRF with intelligent control gives you independent zoning control with maximum flexibility.

A single outdoor unit supports up to nine indoor units, freeing up considerable space outside. Use your

backyard more wisely with much more space available created by less number of outdoor units.

Max. 4 indoor units for a 80 model outdoor unit installation

Max. 5 indoor units for a 105 model outdoor unit installation

Max. 6 indoor units for a 120 model outdoor unit installation

Max. 6 indoor units for a 140 model outdoor unit installation

Max. 7 indoor units for a 160 model outdoor unit installation

3.9 Simple signal line connection

Installation is much easier as the communication wiring between indoor & outdoor units can be shared.

It’s easy for the user to retrofit the existing system with a centralized control by simply connecting to

outdoor unit.

Longest

piping length

Level

difference

between

IDU~ODU

The IDU to the

nearest branch

pipe

The first branch

joint to the farthest

indoor unit

Level differece

between IDU~IDU

PQE & XYE, just only one group of communication wire of PQE,

achieved both of communication for indoor & outdoor unit and

network.

Reversible communication, central controller can be connected

from indoor side or outdoor side as you wish.

P Q E

P Q E P Q E P Q E P Q E

XY E X Y E

Piping Length

Permitted Value

Total piping length (Actual)

100m

Longest piping

length

Actual

45m(80/105 model)

60m(120~160 model)

Equivalent

50m(80/105 model)

70m(120~160 model)

The first branch joint to the

farthest IDU

20m

The IDU to the nearest branch pipe

15m

Level difference

between ODU~IDU

ODU up

30m

ODU down

20m

Level difference between IDU~IDU

MCAC-VTSM-2016-10 R410AAll DC Inverter Mini VRF

General Information 7

3.10 Auto address setting function

The addresses of indoor units can be set automatically by outdoor unit.

Wired controller and wireless controller can enquire and modify the address of each indoor unit.

3.11 Easy piping connection

Offering four directions to connect pipes and wirings

to meet various installation requests.

3.12 Easy installation

The mini VRF can be transported by elevator which makes

installation dramatically easy, and effectively reduces time

and labor thanks to the small size.

3.13 Easy maintenance

Forced cooling button makes outdoor unit run in cooling mode at

any condition, so it is very easy for you to charge refrigerant to the

system when it needs to be done. The self-diagnosis function

detects malfunctions in major locations in the system and displays

the type of malfunction and location. This allows service and maintenance

to be performed more efficiently.

3.14 Space saving

The Mini VRF units are more compact, resulting in significant savings in installation space. It is particularly

suitable for small offices, villas, shops, etc.

Outdoor unit can

distribute address

for indoor unit

automatically Shield signal wire

Wired and wireless controller

can enquire and modify address

of each IDU.

Right side

Upper side

Back side

Front side Bottom side

Front side Back side

Right side Bottom side

Fat pipe

Easy to transport

This manual suits for next models

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