Heat Controller B-DVC09SD-0, B-DVH12SD-0, A-DVH09SD-0, A-DVC09SD-0, B-DVC12SD-0 Service Manual

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SERVICE MANUAL

DVC/DVH 09/12/18/24

Inverter Single Zone

Ductless Mini-Split

AITONS/MARS 35 Brownridge Road, Unit 6, Halton Hills, ON L7G 0C6 • 1-888-744-2911 • info@aitons.com • www.aitons.com

DVC/DVH Inverter Mini-Split Heat Controller

TABLE OF CONTENTS

1. Precaution ........................................................................................................................................................................3

1.1 Safety Precaution ......................................................................................................................................................3

1.2 Warning .....................................................................................................................................................................4

2. Part Identication and Functions ...................................................................................................................................5

2.1 Model Numbers of Indoor/Outdoor units ...................................................................................................................5

2.2 Required clearances for Indoor/Outdoor units .......................................................................................................5-6

2.3 Features .................................................................................................................................................................6-7

3. Dimensional Data ............................................................................................................................................................8

3.1 Indoor Unit ................................................................................................................................................................8

3.2 Indoor Unit Mounting Bracket ...................................................................................................................................9

3.3 Outdoor Unit ............................................................................................................................................................10

4. Refrigerant Cycle Diagram ...........................................................................................................................................11

4.1 Cooling Only Models (DVC) .................................................................................................................................... 11

4.2 Heat Pump Models (DVH) ......................................................................................................................................12

5. Wiring Diagrams ............................................................................................................................................................13

5.1 Indoor Units ........................................................................................................................................................13-14

5.2 Outdoor Units ..........................................................................................................................................................15

6. Installation Details .........................................................................................................................................................16

6.1 Electrical .................................................................................................................................................................16

6.2 Line Set Connection Sizes ......................................................................................................................................16

6.3 Line Set Lengths and Elevations ............................................................................................................................16

6.4 Field Charging .........................................................................................................................................................16

7. Operating Conditions ....................................................................................................................................................17

8. Electronic Display Functions .......................................................................................................................................18

8.1 Abbreviations ..........................................................................................................................................................18

8.2 Display Functions ....................................................................................................................................................18

8.3 Main Protection .......................................................................................................................................................18

9. Operation Modes and Functions ..................................................................................................................................19

9.1 Fan Only Mode .......................................................................................................................................................19

9.2 Cooling Mode .....................................................................................................................................................19-21

9.3 Heating Mode .....................................................................................................................................................21-23

9.4 Defrost Mode .....................................................................................................................................................23-24

9.5 Evaporator Coil Temp. Protection ...........................................................................................................................24

9.6 Auto-Mode ..........................................................................................................................................................24-25

9.7 Dry Mode ................................................................................................................................................................25

9.8 Forced Operation ....................................................................................................................................................25

9.9 Timer Function ...................................................................................................................................................25-26

9.10 Sleep Mode ...........................................................................................................................................................26

9.11 Auto-Restart Function............................................................................................................................................26

9.12 Automatic Panel Function .....................................................................................................................................26

9.13 47°F (8°C) Heating ................................................................................................................................................26

10. Troubleshooting ..........................................................................................................................................................27

10.1 Indoor Unit Error Codes ........................................................................................................................................27

10.2 Outdoor Unit Errors and Troubleshooting ........................................................................................................28-31

10.3 Diagnosis and Solution ....................................................................................................................................32-48

10.4 Pressure on Service Port ......................................................................................................................................49

WARNING

• InstallationMUSTconformwithlocalbuildingcodesor,intheabsenceoflocalcodes,withtheNationalElectricalCode  NFPA70/ANSIC1-1993orcurrenteditionandCanadianElectricalCodePart1CSAC.22.1.Whereconictsexist,thelocal

and/or national codes shall prevail.

• Theinformationcontainedinthemanualisintendedforusebyaqualied,licensedservicetechnicianfamiliarwithsafety  proceduresandequippedwiththepropertoolsandtestinstruments

• Installationorrepairsmadebyunqualiedpersonswillvoidthewarrantyandmaycausehazardsorincorrectoperation.

• Failuretocarefullyreadandfollowallinstructionsinthismanualcanresultinequipmentmalfunction,propertydamage,

personal injury and/or death.

Heat Controller DVC/DVH Inverter Mini-Split

1. Precaution

1.1 Safety Precaution

 To prevent injury to the user or other

people and property damage, the following

instructions must be followed.

 Incorrect operation due to ignoring

instruction will cause harm or damage.

 Before service the unit, be sure to

read this service manual at first.

1.2 Warning

 Installation

 Do not use a defective or underrated

circuit breaker. Use this appliance on a

dedicated circuit.

There is risk of fire or electric shock.

 For electrical work, contact the dealer,

seller, a qualified electrician, or an

authorized service center.

Do not disassemble or repair the product,

there is risk of fire or electric shock.

 Always ground the product.

There is risk of fire or electric shock.

 Install the panel and the cover of

control box securely.

There is risk of fire of electric shock.

 Always install a dedicated circuit and

breaker.

Improper wiring or installation may cause

electric shock.

 Use the correctly rated breaker of

fuse.

There is risk of fire or electric shock.

 Do not install, remove, or reinstall the

unit by yourself (customer).

There is risk of fire, electric shock, explosion,

or injury.

 Be caution when unpacking and

installing the product.

Sharp edges could cause injury, be especially

careful of the case edges and the fins on the

condenser and evaporator.

 Take care to ensure that power cable

could not be pulled out or damaged during

operation.

There is risk of fire or electric shock..

 Do not touch (operation) the product

with wet hands..

 Do not allow water to run into

electrical parts or the unit.

It may cause fire, failure of the product, or

electric shock.

 Do not store or use flammable gas or

combustible materials near the product.

There is risk of fire or failure of product.

 Do not use the product in a tightly

closed space for a long time.

Oxygen deficiency could occur.

 If abnormal noises or smoke comes

from product, turn the breaker off or

disconnect the power supply cable.

There is risk of electric shock or fire.

 Do not open the inlet grill of the

product during operation. (Do not touch the

electrostatic filter, if the is equipped with

one .)

There is risk of physical injury, electric shock,

or product failure..

 Turn the main power off when

cleaning or maintaining the product.

There is risk of electric shock.

 When the product will not be used for

a long period of time, turn off the circuit

breaker.

There is risk of product damage or failure, or

unintended operation.

 CAUTION

 Always check for refrigerant leakage

after installation or repair of product.

Low refrigerant levels may cause operational

failure.

 Install the drain hose to ensure that

water is drained away properly.

Improper installation may cause water

leakage and damage to personal property.

DVC/DVH Inverter Mini-Split Heat Controller

 Keep the unit level even when

installing the product.

This helps to avoid vibration or water leakage.

 Do not install the product where it will

be directly exposed to seaside wind (salty

air).

It may cause corrosion on the product.

Corrosion, particularly on the condenser and

evaporator fins, could cause product

malfunction or inefficient operation.

 Operational

 Do not block the inlet or outlet of air

flow.

 Use a soft cloth to clean. Do not use

harsh detergents, solvents, etc.

There is risk of fire, electric shock, or damage

to the plastic parts of the product.

 Do not touch the metal parts of the

product when removing the air filter. They

are very sharp.

 Always insert the filter securely.

Clean the filter every two weeks or more

often if necessary.

A dirty filter reduces the efficiency of the air

conditioner and could cause product

malfunction or damage.

 Do not insert hands or other objects

through air inlet or outlet while the product

is operated.

 Replace the all batteries in the remote

control with new ones of the same type. Do

not mix old and new batteries or different

brands of batteries.

There is risk of fire or explosion.

 If battery acid from the batteries gets

onto your skin or clothes, wash it well with

clean water and contact your local poison

control center. Do not use the remote of the

batteries have leaked.

Heat Controller DVC/DVH Inverter Mini-Split

2. Part Identification and Functions

2.1 Model Numbers of Indoor/Outdoor units

Capacity Indoor Units Outdoor Units

9KBTU/H

12KBTU/H

18KBTU/H

24KBTU/H

B-DVH09SD-0 / B-DVC09SD-0 A-DVH09SD-0 / A-DVC09SD-0

B-DVH12SD-0 / B-DVC12SD-0 A-DVH12SD-0 / A-DVC12SD-0

B-DVH18SD-1 / B-DVC18SD-1 A-DVH18SD-1 / A-DVC18SD-1

B-DVH24SD-1 / B-DVC24SD-1 A-DVH24SD-1 / A-DVC24SD-1

2.2 Required Clearances for Indoor and Outdoor units

DVC/DVH Inverter Mini-Split Heat Controller

Note:

2.3 Features

For Reference Only. Your model may differ and is subject to change.

Auto Restart

Sleep Mode

Turbo Mode

Anti-ColdBlow

Silver Ico Filter

LowAmbient

Golden Fin

Self Clean

FollowMe

Horizontal&VerticalSwingFunction

Louver Position Memory Function

Refrigerant Leakage Detect

Self-Diagnosis Function

Anti-Rust Cabient

Valve Protection Cover

Slump Heater

LowHeating

Room Temp.

Compressor Crankcase Heater

Heat Controller DVC/DVH Inverter Mini-Split

2.3.1 Description of Features and Functions

• Auto-Restart:

The unit will memorize the set conditions before a power failure and resume operation automatically when the

power re-starts.

• Sleep Mode:

This feature helps keep the room conditions at the most desirable levels when you sleep.

• Turbo Mode:

Turbo mode allows the unit to quickly heat or cool and room, at a high speed fan setting.

• Anti-Cold Blow:

In heating mode, this feature prevents cold air from blowing until warm air is ready to be delivered.

• Silver Ion Filter:

The silver filter sterilizes bacteria in the air stream by decomposing cell wall of bacteria.

• Low Ambient Operation:

Allows the unit to operate under low outdoor temperatures.

• Gold Hydrophilic Condensers Fin Coating:

This coating improves the heating efficiency by accelerating the defrosting process. The anticorrosive gold

coating on the condenser helps withstand salty air and corrosive elements for sea side applications.

• Self Clean:

This function wicks away any moisture, essentially cleaning the inside of indoor unit to prevents bacteria for

forming. This feature is especially useful at the end of the season and/or when the unit will not be used for

an extended period of time.

• Follow me:

A temperature sensor is built in the remote control, which signals the unit to automatically change the

operation mode to supply a comfortable temperature. Using this feature allows the unit to sense the

conditions where you are in the room, rather than up high in the room where it traditionally senses the

conditions via the indoor unit.

• Low Room Temperature Protection:

Allows the unit to maintain a set temperature to protect the area it is installed in from freezing when you will be

away for an extended period of time in the winter.

• Louver Swing and Position Memory:

The louvers can swing to make a breeze like affect in the air flow from the indoor unit. When starting the unit

after shutting down, the louver will restore the user’s settings for louver position.

• Refrigerant Leak Detection:

The refrigerant leakage detect function prevents the unit from freezing due to low charge and protects the

compressor from being damaged.

• Self-Diagnosis Function:

The system monitors itself for abnormal operations and turns of the unit automatically to protect it from further

damage, then displays an error code to help troubleshoot the problem for a quick solution.

• Sump Heater:

A PTC heater is installed in the base pan of the outdoor unit to prevent the rain, snow or defrosted water from

accumulating and icing up the unit.

• Compressor Crankcase Heater:

The oil dissolves easily into the refrigerant, especially in low temperature condition, therefore the crankcase

heating belt is used to warm the bottom of the compressor to avoid pumping out too much oil within the

refrigerant, which helps to protect the compressor.

DVC/DVH Inverter Mini-Split Heat Controller

3. Dimensional Data

3.1 Indoor Unit

Note: The drawings below are only for reference. Actual dimensions may be different and are subject

to change.

Note: The above drawing is only for reference. The dimensions of your actual unit may be different

and are subject to change.

Model W D H

B-DVC09SD-0

B-DVH09SD-0

B-DVC12SD-0

B-DVH12SD-0

B-DVC18SD-1

B-DVH18SD-1

B-DVC24SD-1

B-DVH24SD-1

26.8in

(680mm)

30.3in

(770mm)

35.6in

(905mm)

40.6in

(1030mm)

7.0in

(178mm)

7.4in

(188mm)

7.8in

(198mm)

8.6in

(218mm)

10.0in

(255mm)

10.8in

(275mm)

12.4in

(315mm)

Heat Controller DVC/DVH Inverter Mini-Split

3.2 Indoor Unit Mounting Bracket

Note: The drawings below are only for reference. Actual dimensions may be different and are subject

to change.

Model R L H Hole Diameter

B-DVC/DVH09 3.6in(92mm)

6.7in

B-DVC/DVH12 3.7in(95mm)

(170mm)

1.8in

(45mm)

Φ2.56in

(65mm)

B-DVC/DVH18 3.1in(80mm) 3.9in(100mm)

Model R L H Hole Diameter

B-DVC/DVH24 6.4in(163mm) 11.5in(293mm) 1.8in(45mm) Φ2.56in(65mm)

DVC/DVH Inverter Mini-Split Heat Controller

3.3 Outdoor Unit

Note: The drawings below are only for reference. Actual dimensions may be different and are subject

to change.

Note: The above drawing is only for reference. The dimensions of your actual unit may be different

and are subject to change.

Model W H D W1 A B

A-DVC/DVH09

A-DVC/DVH12

A-DVC/DVH18

A-DVC/DVH24

26.0in

(660mm)

30in

(760mm)

33.3in

(845mm)

10.5in

(265mm)

11.25in

(285mm)

12.5in

(320mm)

21.25in

(540mm)

23.2in

(590mm)

27.6in

(700mm)

28.8in

(732mm)

32.5in

(823mm)

35.7in

(908mm)

18in

(458mm)

20.9in

(530mm)

22in

(560mm)

10.9in

(276mm)

11.5in

(290mm)

13.2in

(335mm)

Heat Controller DVC/DVH Inverter Mini-Split

INDOOR OUTDOOR

maintenance or replacement of

evacuated for maintenance or

4. Refrigerant Cycle Diagram

4.1 Cooling Only Models (DVC):

LIQUID SIDE

CAPILIARY TUBE

HEAT EXCHANGE (EVAPORATOR)

GAS SIDE

ATTENTION:

Units can be pumped down for service

and recharged.

• A servicer can pump down the refrigerant into the outdoor unit for

HEAT EXCHANGE (CONDENSER)

COMPRESSOR

the indoor unit.

• Also the entire system can be

replacement of the outdoor unit.

DVC/DVH Inverter Mini-Split Heat Controller

INDOOR OUTDOOR

maintenance or replacement of

evacuated for maintenance or

4.2 Heat Pump Models (DVH):

LIQUID SIDE

2-WAY VALVE

HEAT EXCHANGE (EVAPORATOR)

CHECK VALVE (Heating Model only)

CAPILIARY TUBE

GAS SIDE

HEAT EXCHANGE (CONDENSER)

3-WAY VALVE

ACCUMULATOR

COMPRESSOR

ATTENTION:

Units can be pumped down for service

and recharged.

• A servicer can pump down the refrigerant into the outdoor unit for

the indoor unit.

• Also the entire system can be

replacement of the outdoor unit.

REVERSING VALVE (Heating Model only)

COOLING

HEATING

Heat Controller DVC/DVH Inverter Mini-Split

5.0 Wiring Diagrams:

5.1 Indoor Units:

B-DVC09SD-0, B-DVH09SC-0, B-DVH12SD-0, B-DVH12SD-0

B-DVC18SD-1, B-DVH18SD-1

DVC/DVH Inverter Mini-Split Heat Controller

B-DVC24SD-1, B-DVH24SD-1

Heat Controller DVC/DVH Inverter Mini-Split

5.2 Outdoor Units

A-DVC09SD-0, A-DVH09SD-0, A-DVC12SD-0, A-DVH12SD-0

A-DVC18SD-1, A-DVH18SD-1

DVC/DVH Inverter Mini-Split Heat Controller

6 Installation Details

6.1 Electrical

All electrical wiring must be done according to

local codes. Additionally installations in the

USA, must conform to the current National

Electric Code (NEC) and Installations in

Canada must conform to current Canadian

Electric Code (CEC).

6.2 Line Set Connection Sizes

Connection Size

Models

DVC09SD-0 / DVH09SD-0

DVC12SD-0 / DVH12SD-0 DVC18SD-1 / DVH18SD-1

DVC24SD-1 / DVH24SD-1

Gas Liquid

3/8in

(9.52mm)

1/2in

(12.7mm)

5/8in

(15.9mm)

1/4in

(6.35mm)

1/4in

(6.35mm)

3/8in

(9.52mm)

Nameplate data indicates the operating voltage,

phase, ampacity, maximum over current

6.3 Line Set Lengths and Elevations

protection, and minimum voltage.

The contractor is to provide an individual

branch circuit for over current protection for the

Models

Max.

Elevation

Max.

Length

unit as required by code. Some codes may

require a disconnect between the indoor and

outdoor unit. Run power supply wiring through

a weatherproof disconnect box and conduit to

the unit connection. Disconnects are required

to be within sight and easy reach of the unit

(usually within 3 feet).

DVC/DVH09SD-0

DVC/DVH12SD-0 DVC/DVH18SD-1

DVC/DVH24SD-1

26ft (8m)

33ft (10m)

66ft

(20m)

82ft

(25m)

Circuit breakers and disconnect switches

should be properly sized based on the required

codes and the unit’s nameplate requirements.

Check the unit wiring diagram for the number of

6.4 Field Charging:

conductors required. Ensure that the proper

AWG (gauge) and type of wired is used to

comply with code and the unit’s nameplate.

Route neatly and protect from sharp edges and

damage. Inadequate wiring and/or improper

electrical supply will likely result in failure of the

compressor and other electrical components

and voids the warranty.

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