Airwell MD Series Betriebsanleitung

Multi-duct cassette units

INDIVIDUAL COMFORT RANGE

Technical instructions manual

TM03MD1 GB ATM03MD1 GB A

TM03MD1 GB A

Cancels and replaces :

Cooling capacity (W) Heating capacity (W)

MD 35 1~230 V - 50 Hz 9100 9140

MD 38 11260 11100

MD 35

3N~400 V - 50 Hz

8790 8790

MD 38 10400 11100

MD 50 12600 14500

MD Multi-duct cassettes

CONTENTS

PRESENTATION ................................................................................. 3

TECHNICAL SPECIFICATIONS ............................................................ 5

OPERATING LIMITS ........................................................................... 6

COOLING CAPACITY ........................................................................ 7

HEATING CAPACITY .......................................................................... 10

COOLING MODE POWER INPUT. ..................................................... 13

HEATING MODE POWER INPUT ........................................................ 16

DIMENSIONS

• MD Indoors unit .............................................................................. 19

• GC Outdoors unit ........................................................................... 20

INSTALLATION

• MD Indoors unit .............................................................................. 22

• GC Outdoors unit ........................................................................... 25

AIR DISTRIBUTION ............................................................................ 26

NEW AIR INTAKE (option) ................................................................... 28

AERAULIC CHARACTERISTICS ............................................................ 29

CONDENSATES DRAINAGE ............................................................... 31

REFRIGERATION CONNECTIONS ...................................................... 32

REFRIGERANT CHARGE ..................................................................... 33

ELECTRICAL SPECIFICATIONS............................................................ 34

ELECTRICAL CONNECTIONS

• Controller board ............................................................................. 36

• Single phase units ........................................................................... 37

• Three phase units ............................................................................ 38

INFRARED RECEIVER .......................................................................... 39

RC4 INFRARED REMOTE CONTROL ................................................... 41

RCW-2 wall mounted remote control ................................................... 42

MD Multi-duct cassettes

PRESENTATION

These units are optimised for operating with chlorine-free R-407C refrigerant

having no harmful effects on the ozone layer and they meet the requirements of

both current legislation and of care for the environment.

The «Multi-Duct Cassettes» range meets the air conditioning needs of all

sizes of residential and tertiary installations.

The 3 models, with capacities ranging from 8790 to 14500 W, comprise two

separate elements:

The MD indoors unit for air distribution via a duct network.

The GC outdoors unit for air treatment.

This range is offered with two options:

•Cooling Only

Standard Cooling function with electric heating as an option.

•Heatpump

Standard Cooling and thermodynamic Heating as standard with additional

electric heating as an option.

1. INDOORS UNIT

This unit incorporates highly sophisticated technical qualities with particularly

well designed aesthetics and ease of installation.

Its low height (300 mm) enables it to be easily integrated into a suspended

ceiling.

It can also be installed in corridors (width: 850 mm)

It incorporates three different ventilation fan speeds.

With air blowing orifices located on both sides and air pressure available for

connection to a duct network, it is capable of air conditioning up to 6 separate

rooms.

Adaptors for flexible ducting (8" to 12") are supplied with the unit.

It is equipped with:

• An infra red receiver, linked to the unit via a 7 m cable enabling all air

conditioning functions to be selected by way of the Liquid Crystal Display infra

red control (see page 41).

• A turbine with very low noise levels.

• An air intake grille (supplied as an accessory) fitted with an acoustic attenuator.

• A condensates lift pump (factory fitted) with a 600 mm lift height for condensates

drainage.

• An electrical connection box on a sliding chassis for easy access to all electrical

connections.

• Complete access to all components via the bottom of the unit.

• 2 installation options:

– Mounting plate and suspension rails.

– Brackets for attachment to threaded rods (not supplied).

• Reusable air filters.

MD Multi-duct cassettes

2. OUTDOORS UNIT

Of compact design, taking up very little floor area, this unit houses the «Scroll»

compressor, the fan-condenser assembly and the electrical box.

Two installation possibilities:

• Direct floor installation.

• Wall hanging with accessory (not supplied).

3. REFRIGERATION CIRCUIT

Both the indoors and outdoors units are equipped with «FLARE» connectors,

enabling the use of «FLARE» refrigeration pipes (refrigeration quality copper

pipe)

Depending on the model, pipe lengths can extend up to 50 m.

Heatpump models are equipped with a cooling cycle inversion system enabling

them to operate in an AIR/AIR thermodynamic heating mode down to outside

temperatures as low as –10° C.

A good coefficient of performance (COP) for the transfer of calories from the

outside to the premises to be air conditioned is achieved.

4. OPTIONS

The Cooling only and Heatpump models can be equipped with:

• Electric heating

• New air intake

• Manual treated airflow gate

• Centralised system control possible with RCW-2 wall mounted remote control.

5. DOCUMENTATION

Each unit is supplied with general wiring and connection diagrams and specific

installation and operation instructions.

Each accessory (or kit) is accompanied by technical specifications for fitting and

adjustment as required.

MD Multi-duct cassettes

TECHNICAL

SPECIFICATIONS

These characteristics are

provided for information purposes

only and are subject to change

without prior notice.

(1) Test conditions for operating in Cooling mode

Temperature of recycled intake air to be treated:

27° (DBT) / 19 C (WBT)

Outdoor air intake temperature: 35° C (DBT)

Nominal airflow at the evaporator and at the

condenser.

(2) Test conditions for operating in Heating mode

Temperature of recycled intake air to be treated:

20° (DBT)

Outdoor air intake temperature:

7° C (DBT) / 6°C (WBT)

Nominal airflow at the evaporator and at the

condenser.

(3) Noise levels

Global acoustic pressure in dBA at nominal condi-

tions.

Indoors unit:

Installation in average size room (LS – 0.5 s

reverberation at a distance of 1 m)

Outdoors unit:

In open area against a reflecting surface.

Models MD 35 MD 38 MD 50

R-407C refrigerant • • •

Power supply 1~230 V - 50 Hz

Nominal cooling capacity (1)

Nominal power input in cooling mode

9100

3580

11260

3950

Nominal heating capacity (1)

Nominal power input in heating mode

Cœfficient of performances (COP)

W/W

9140

3150

2.9

11100

3985

2.76

Power supply 3N~400 V - 50 Hz

Nominal cooling capacity (1)

Nominal power input in cooling mode

8790

3370

10400

3850

12600

5185

Nominal heating capacity (1)

Nominal power input in heating mode

Cœfficient of performances (COP)

W/W

8790

3030

2.9

11100

3940

3.82

14500

5180

2.8

INDOOR UNIT

Noise levels (3)

• LS - Low Speed

• MS - Medium Speed

• HS - High Speed

dBA

51.3

54.8

57.2

54.8

57.2

54.8

59.3

Airflow

• LS - Low Speed

• MS - Medium Speed

• HS - High Speed

m³/h

1040

1180

1700

1180

1475

1700

1180

1475

2000

Dimensions

• Length x Depth x Height mm 1025 x 760 x 300

Weight kg 43 44 44

Packed dimensions

• Length x Depth x Height mm 1125 x 975 x 360

OUTDOOR UNIT

Noise levels dBA 69 65 65

Airflow m³/h 3100 4150 4150

Dimensions

• Length x Depth x Height mm 900 x 340 x 860 900 x 340 x 970 900 x 350 x 970

Weight kg 82 95 95

Packed dimensions

• Length x Depth x Height mm 985 x 406 x 906 985 x 406 x 1020 985 x 406 x 1020

ACCESSORIES & OPTIONS

Air intake grille • • •

Electric heating W 2 x 750 2 x 1500 2 x 1500

New air intake • • •

Manual treated air gate • • •

RCW-2 Wall mounted remote control • • •

MD Multi-duct cassettes

OPERATING

LIMITS

The MD indoors units and the GC outdoors units operate within the following

limits:

COOLING mode

Low limits

Indoor temperature DBT °C 21

WBT °C 15

Outdoor temperature DBT °C 21

High limits

Indoor temperature DBT °C 32

WBT °C 23

Outdoor temperature DBT °C 46

HEATING mode

Low limits

Indoor temperature DBT °C 20

Outdoor temperature DBT °C –9

WBT °C –10

High limits

Indoor temperature DBT °C 27

Outdoor temperature DBT °C 24

WBT °C 18

DBT: Dry Bulb temperature (° C)

WBT: Wet Bulb temperature (° C)

MD Multi-duct cassettes

COOLING

CAPACITY

Model MD 35

single phase

Model MD 35

Three phase

Outdoor temperature (°C Dry bulb)

Cooling capacity (kW)Cooling capacity (kW)

Outdoor temperature (°C Dry bulb)

Indoor temperature

30° C Dry Bulb - 50% humidity

27° C Dry Bulb - 50% humidity

23° C Dry Bulb - 50% humidity

Indoor temperature

30° C Dry Bulb - 50% humidity

27° C Dry Bulb - 50% humidity

23° C Dry Bulb - 50% humidity

MD Multi-duct cassettes

COOLING

CAPACITY

Model MD 38

single phase

Model MD 38

three phase

Cooling capacity (kW)Cooling capacity (kW)

Outdoor temperature (°C Dry bulb)

Indoor temperature

30° C Dry Bulb - 50% humidity

27° C Dry Bulb - 50% humidity

23° C Dry Bulb - 50% humidity

Indoor temperature

30° C Dry Bulb - 50% humidity

27° C Dry Bulb - 50% humidity

23° C Dry Bulb - 50% humidity

MD Multi-duct cassettes

COOLING

CAPACITY

Model MD 50

three phase

Cooling capacity (kW)

Outdoor temperature (°C Dry bulb)

Indoor temperature

30° C Dry Bulb - 50% humidity

27° C Dry Bulb - 50% humidity

23° C Dry Bulb - 50% humidity

MD Multi-duct cassettes

HEATING

CAPACITY

Model MD 35

single phase

Model MD 35

three phase

Heating capacity (kW)Heating capacity (kW)

Outdoor dry bulb temperature (°C)

Indoor temperature

20°C Dry bulb

18°C Dry bulb

15°C Dry bulb

Indoor temperature

20°C Dry bulb

18°C Dry bulb

15°C Dry bulb

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