Carrier 42QHF009DS Manuale utente

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Service Manual

AIR CONDITIONER

DC INVERTER MULTI TYPE

This manual applies to models:

High Wall

42QHF009DS

42QHF012DS

42QHF018DS

Duct

42QSM009DS

42QSM012DS

42QSM018DS

Cassette

42QTD009DS

42QTD012DS

42QTD018DS

Console

42QFA009DS

42QFA012DS

42QFA018DS

Universal CDU

38QUS018DS2

38QUS027DS3

38QUS036DS4

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CONTENTS

1. General information of Outdoor& Indoor Units ..................................3

2. Features .................................................................................................4

3. Dimensions..........................................................................................11

4. Service space for light commercial indoor.......................................18

5. Wiring Diagram....................................................................................20

6. Refrigeration Cycle Diagram..............................................................25

7.Indoor units combination. ...................................................................27

8. Static Pressure (Duct).........................................................................28

9.Operation Characteristics ...................................................................29

10.Installation Details..............................................................................30

11.Electronic control function................................................................40

12.Troubleshooting.................................................................................57

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1. General information of Outdoor& Indoor Units

■Outdoor

Model name

Dimension (mm)

Compressor

38QUS018DS2

845x320x700

DA130M1C-31FZ

38QUS027DS3

900x315x860

DA250S2C-30MT

38QUS036DS4

990x345x965

TNB306FPGMC-L

■Indoor

High wall

A5 Duct

Four-way cassette (compact):

Console:

Model name

Dimension (mm)

42QHF009DS

800x188x275

42QHF012DS

800x188x275

42QHF018DS

940x205x275

42QSM009DS

700x635x210

42QSM012DS

700x635x210

42QSM018DS

920x635x210

42QTD009DS

570x570x260

42QTD012DS

570x570x260

42QTD018DS

570x570x260

42QFA009DS

700x600x210

42QFA012DS

700x600x210

42QFA018DS

700x600x210

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2. Features

2.1 Outdoor unit 2.2 High wall

2.3 Four-way cassette type(compact)

⑴New panel

360°surrounding air outlet design, affords comfortable feeling

⑵Compact design

The hydrophilic fin can improve the heating efficiency at operation mode.

It protects the valves and prevents water from dripping.

4 way valve control

It is only operated in the heating operation mode except defrosting operation.

Outdoor unit

Power relay control

Hydrophilic aluminum fin

Anti-rust cabinet

Valve protection cover

Low noise air flow system

Discharge pipe temperature protection

High wall

Filter

Refrigerant leakage detect

Anti-rust cabinet

Self-diag. Function

Low noise air flow system

Louver position memory function

2 ways of drainage

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The body size is 570×260×570mm, it’s just smaller than the console board, so it’s very easy for

installation and will not damage the decoration. The panel size is 647×50×647mm.

The hooks are designed in the four corners of the body, which can save installation space.

⑶Electric control box built-in design

The E-box is simply and safely built inside the indoor unit. It’s convenient for installation and

maintenance. Can check the control part easily, you only need to open the air return grille.

⑷Fresh air intake function:

Fresh air fulfills air quality more healthy and comfortable.

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⑸Air passage function

Reserves the space for air outlet from the side of indoor unit; It’s availed to connect air duct

from the two sides to the nearby small rooms.

Dimension:Φ75mm

Fresh

Air

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2.4 A5 Duct

⑴Installation accessories: (Optional)

Front Board, Canvas Air Passage, Filter, Panel, for easy installation

⑵Easy Installation: Two air inlet styles (Bottom side or Rear side)

Air inlet from rear is standard for all capacity; air inlet from bottom is optional.

The size of air inlet frame from rear and bottom is same, it’s very easy to move the cover from bottom to

rear side, or from rear to the bottom, in order to matching the installation condition.

⑶Fresh air intake function

Install one duct from the reserved fresh-air intake to outdoor.

Continually inhale the fresh air to improve the quality of the indoor air, fulfills air quality more healthy and

comfortable.

Front Board

Canvas Air Passage

Filter

Panel

Air intake from rear (Standard)

Air intake from bottom (Optional)

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⑷Easy maintenance

Clean the filter (Optional, standard product without filter)

It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or

bottom side.

Replace the motor or centrifugal fan

Remove the ventilated panel firstly. Remove a half of blower housing and take out the motor with

centrifugal fan. Directly remove two bolts, and then replace the motor or centrifugal fan easily.

⑸Reserved remote on-off and central control ports

Reserved remote on-off ports and central control ports, can connect the cable of an on-off controller or a

central controller to realize remote on-off control function or group control function.

Motor

Blower Housing

Ventilated Panel

Remote on-off ports

Central control ports

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⑹Built-in drain pump (Optional):

Built-in drain pump can lift the water to 750mm upmost. It’s convenient to install drainage piping under

most space condition.

⑺Built-in display board

The standard indoor unit can be controlled by wired controller.

There is a display board with a receiver in the E-box. Move out the display, and fix it in other place, even

in the distance of 10m. The unit will realized remoter control.

The wired controller and the display board can display the error code or production code when the chips

detect some failure.

2.5 Console

(1) New design, more modern and elegant appearance.

(2) Convenient installation

--The console type can be easily installed into a corner of the console even if the console is very narrow

--It is especially useful when installation of an air conditioner in the center of the console is impossible due to a

structure such as one lighting.

Display

750mm upmost

Wired Controller (Standard)

Remote Controller (Optional)

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(3) Two direction auto swing (vertical & horizontal) and wide angle air flow,

--Air flow directional control minimizes the air resistance and produces wilder air flow to vertical direction.

--The range of horizontal air discharge is widened which secures wider air flow distribution to provide more

comfortable air circulation no matter where the unit is set up

(4) Three level fan speed, more humanism design, meets different air-supply requirement.

(5) Water proof by utilizing the absorbing plastic film on water collector

(6) Easy operation. Auto-restart function, remote control and optional wire control method.

(7) Low noise level plus compact size

--Shape of the blades has been improved to prevent noise caused by turbulence.

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