Alpic Air AOU Series User manual

Owner's Manual

Original Instructions

Commercial Air Conditioners

AOU DC Inverter VRF

Model:

AOU-224VRDC3B AOU-282VRDC3B

AOU-280VRDC3B AOU-335VRDC3B

AOU-400VRDC3B AOU-450VRDC3B

AOU-451VRDC3B AOU-504VRDC3B

AOU-560VRDC3B AOU-615VRDC3B

To Users

Thank you for selecting ALPICAIR’s product. Please read this instruction manual carefully

before installing and using the product, so as to master and correctly use the product. In order

to guide you to correctly install and use our product and achieve expected operating effect, we

hereby instruct as below:

(1) This appliance is not intended for use by persons (including children) with reduced

physical, sensory or mental capabilities, or lack of experience and knowledge, unless

they have been given supervision or instruction concerning use of the appliance by a

person responsibility for their safety. Children should be supervised to ensure that

they do not play with the appliance.

(2) In order to ensure reliability of product, the product may consume some power under

stand-by status for maintaining normal communication of system and preheating

refrigerant and lubricant. If the product is not to be used for long, cut off the power

supply; please energize and preheat the unit in advance before reusing it.

(3) Please properly select the model according to actual using environment, otherwise it

may impact the using convenience.

(4) This product has gone through strict inspection and operational test before leaving the

factory. In order to avoid damage due to improper disassembly and inspection, which

may impact the normal operation of unit, please do not disassemble the unit by

yourself. You can contact with the special maintenance center of our company if

necessary.

(5) For personal injury or property loss and damage caused by improper operation such

as improper installation and debugging, unnecessary maintenance, violation of related

national laws and rules and industrial standard, and violation of this instruction manual,

etc., we will bear no liability.

(6) When the product is faulted and cannot be operated, please contact with our

maintenance center as soon as possible by providing the following information.

1)Contents of nameplate of product (model, cooling/heating capacity, product No.,

ex-factory date).

2)Malfunction status (specify the situations before and after the error occurs).

(7) All the illustrations and information in the instruction manual are only for reference. In

order to make the product better, we will continuously conduct improvement and

innovation. We have the right to make necessary revision to the product from time to

time due to the reason of sales or production, and reserve the right to revise the

contents without further notice.

(8) The final right to interpret for this instruction manual belongs to AlpicAir.

Contents

1 SAFETY NOTICES (PLEASE BE SURE TO ABIDE) .................................................................... 1

2 PRODUCT INTRODUCTION..........................................................................................................4

2.1 NAMES OF MAIN PARTS ............................................................................................................... 4

2.2COMBINATIONS OF INDOOR AND OUTDOOR UNITS ......................................................................... 5

2.3THE RANGE OF PRODUCTION WORKING TEMPERATURE ................................................................ 7

3 PREPARATION BEFORE INSTALLATION....................................................................................7

3.1 STANDARD PARTS ....................................................................................................................... 7

3.2 INSTALLATION SITE ...................................................................................................................... 7

3.3 PIPING WORK REQUIREMENTS................................................................................................... 12

4 INSTALLATION INSTRUCTION...................................................................................................13

4.1 PHYSICAL DIMENSION OF THE OUTDOOR UNIT AND MOUNTING HOLE........................................... 13

4.2 CONNECTION PIPE .................................................................................................................... 16

4.3 INSTALLATION OF THE CONNECTION PIPE.................................................................................... 27

4.4 AIR PURGING AND REFRIGERANT CHARGE.................................................................................. 32

4.5 ELECTRIC WIRING..................................................................................................................... 35

4.6 SYSTEM COMMUNICATION.......................................................................................................... 38

4.7 CONNECTION METHOD AND STEPS FOR SYSTEM COMMUNICATION .............................................. 42

4.8 EXTERNAL ELECTRICAL WIRING DIAGRAM .................................................................................. 47

5 CHECK ITEMS AFTER INSTALLATION AND TRIAL RUN......................................................... 48

5.1 CHECK ITEMS AFTER INSTALLATION ............................................................................................ 48

5.2 TRIAL RUN ................................................................................................................................ 49

6 COMMON MALFUNCTION AND TROUBLESHOOTING............................................................61

7 ERROR INDICATION....................................................................................................................63

8 MAINTENANCE AND CARE........................................................................................................ 67

8.1 OUTDOOR HEAT EXCHANGER .................................................................................................... 67

8.2 DRAIN PIPE............................................................................................................................... 67

8.3 NOTICE BEFORE SEASONAL USE................................................................................................ 67

8.4 MAINTENANCE AFTER SEASONAL USE ........................................................................................ 68

8.5 PARTS REPLACEMENT ............................................................................................................... 68

9 AFTER-SALES SERVICE.............................................................................................................68

AOU DC Inverter VRF

1 Safety Notices (Please be sure to abide)

Warning: If not abide strictly, it may cause severe damage to the unit or the people.

Note: If not abide strictly, it may cause slight or medium damage to the unit or the

people.

This sign indicates that the operation must be prohibited. Improper operation may

cause severe damage or death to people.

This sign indicates that the items must be observed. Improper operation may cause

damage to people or property.

WARNING!

This product can’t be installed at corrosive, inflammable or explosive environment or the

place with special requirements, such as kitchen. Otherwise, it will affect the normal

operation or shorten the service life of the unit, or even cause fire hazard or serious injury.

As for above special places, please adopt special air conditioner with anti-corrosive or

anti-explosion function.

Follow this instruction to

complete the installation work.

Please carefully read this

manual before unit startup and

service.

Installation should be

conducted by dealer or

qualified personnel. Please do

not attempt to install the unit

by yourself. Improper handling

may result in water leakage,

electric shock or fire disaster

etc.

Before installation, please check

if the power supply is in

accordance with the

requirements specified on the

nameplate. And also take care of

the power safety.

Make sure the unit can be

earthed properly and soundly

after plugging into the socket

so as to avoid electric shock.

Please do not connect the

ground wire to gas pipe, water

pipe, lightning rod or

telephone line.

Be sure to use the exclusive

accessory and part to prevent

the water leakage, electric shock

and fire accidents.

If refrigerant leakage happens

during installation, please

ventilate immediately.

Poisonous gas will emerge if

the refrigerant gas meets fire.

Wire size of power cord should

be large enough.The damaged

power cord and connection wire

should be replaced by exclusive

cable.

After connecting the power

cord, please fix the electric

box cover properly in order to

avoid accident.

AOU DC Inverter VRF

Never fail to comply with the

nitrigen charge

requirements.Charge nitrogen

when welding pipes.

Never short-circiut or cancel

the pressure switch to prevent

unit damage.

Please firstly connect the wired

controller before energization,

otherwise wired controller can

not be used.

Before using the unit, please

check if the piping and wiring

are correct to avoid water

leakage, refrigerant leakage,

electric shock, or fire etc.

Do not insert fingers or objects

into air outlet/inlet grille.

Open the door and window

and keep good ventilation in

the room to avoid oxygen

deficit when the gas/oil

supplied heating equipment is

used.

Never start up or shut off the air

conditioner by means of directly

plug or unplug the power cord.

Turn off the unit after it runs at

least five minutes; otherwise it

will influence oil return of the

compressor.

Do not allow children operate

this unit.

Do not operate this unit with

wet hands.

Turn off the unit or cut off the

power supply before cleaning

the unit, otherwise electric shock

or injury may happen.

Never spray or flush water

towards unit, otherwise

malfunction or electric shock

may happen.

Do not expose the unit to the

moist or corrosive

circumstances.

Electrify the unit 8 hours

before operation. Please

switch on for 8 hours before

operation. Do not cut off the

power when 24 hours

short-time halting (to protect

the compressor).

Volatile liquid, such as diluent or

gas will damage the unit

appearance.Only use soft cloth

with a little neutral detergent to

clean the outer casing of unit.

Under cooling mode, please

don't set the room temperature

too low and keep the

temperature difference

between indoor and outdoor

unit within 5.

AOU DC Inverter VRF

If anything abnormal happens

(such as burning smell), please

power off the unit and cut off the

main power supply, and then

immerdiately contact ALPICAIR

appointed service center.If

abnormality keeps going, the

unit might be damaged and lead

to electric shock or fire.

User is not allowed to repair

the unit. Fault service may

cause electric shock or fire

accidents. Please contact

ALPICAIRe appointed service

center for help.

ALPICAIR will not assume responsibility of personal injury or equipment damage caused by

improper installation and commission, unnecessary service and incapable of following the rules

and instructions listed in this manual.

DISPOSAL：Donot dispose this product as unsorted municipal waste. Collection of such

waste separately for special treatment is necessary.

AOU DC Inverter VRF

2 Product Introduction

ALPICAIR Multi VRF Modular System adopts inverter compressor technology. According to

change the displacement of compressor, stepless capacity regulation within range of

10%-100% can be realized. Various product lineup is provided with capacity range from

22.4kW to 246kW, which can be widely used in working area and especially applicable to the

place with variable load change.ALPICAIR air conditioner is absolutely your best choice.

2.1 Names of Main Parts

Fig. 2.1.1

NO.

①

②

③

④

⑤

Name

Fan, Motor

Electric Box

Assembly

Valve interface

Power cord

through-hole

Communication

code through-hole

Note: The picture is only used for reference and the actual product prevails.

AOU DC Inverter VRF

2.2Combinations of Indoor and Outdoor Units

(1) The following table indicates the number of IDU for ODU

ODU model

Max number of connectable IDU (unit)

AOU-224VRDC3B

AOU-280VRDC3B

AOU-282VRDC3B

AOU-335VRDC3B

AOU-400VRDC3B

AOU-451VRDC3B

AOU-450VRDC3B

AOU-504VRDC3B

AOU-560VRDC3B

AOU-615VRDC3B

AOU-680~2460VRDC3B

39~80

AOU DC Inverter VRF

The total capacity of indoor units should be within 50%~135% of that of outdoor units.

Fig. 2.3.1

Fig. 2.3.1 is the combination view of the ODU of Modular DC Inverter Multi VRF System

and the IDU of Multi VRF System. IDU can be cassette type, one-way cassette type,

wall-mounted type, duct type, etc. When any one IDU receives operation signal, ODU will start

to work according to the capacity; when all IDUs stop, ODU will also stop.

AOU DC Inverter VRF

2.3The Range of Production Working Temperature

Cooling

Ambient temperature: -5℃~52℃

Heating

Ambient temperature: -20℃~24℃

When the indoor units are all VRF fresh air processor, the unit operating range is as follows:

Cooling

Ambient temperature: 16°C~45°C

Heating

Ambient temperature: -7°C~16°C

Note：

Out of the working Temperature Range may damage this products and will invalidate

the warranty.

3 Preparation before Installation

Note: The picture is only used for reference and the actual product prevails. Unit: mm.

3.1 Standard Parts

Please use the following standard parts supplied by ALPICAIR.

Parts for Outdoor Unit

Number

Name

Picture

Quantity

Remarks

Owner's Manual

Wiring (match with

resistance)

Must be connected to the last

IDU of communication

connection

Mark (Master )

Attach on the wired controller of

master IDU or on the front panel

3.2 Installation Site

Forbidden Items! It indicates that improper operation might lead to human casualty or

sever injury.

Items need to be followed. It indicates that improper operation might lead to personal

injury or property damage.

Install the unit at a place where

is adequate to withstand the

weight of the unit and make sure

the unit would not shake or fall

off.

The installation position

should withstand strong wind,

typhoon and earthquake. The

unit must be installed stably.

This manual suits for next models

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