INVENTOR RFI-66B, RFO-66B User Manual

• USER’S MANUAL

• ΕΓΧΕΙΡΙΔΙΟ ΧΡΗΣΗΣ

• MANUAL DE UTILIZARE

ENGLISH | ΕΛΛΗΝΙΚΑ | ROMANA

AIR CONDITIONING SYSTEMS

MODELS:

RFI-66B/RFO-66B

FLOOR STANDING

Notes prior to use

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CONTENTSCONTENTS

Structure

Models & specifications

Control panel

Remote control

Breeze Guided

Care and Maintenance

Trouble shooting

Electric wiring

Notes for piping

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Installation of indoor unit

Installation of outdoor unit

rial running

Install slant protection cable

NOTES PRIOR TO USE

Power supply requirements:

WARNING

1. Capacity of power supply must be at least 10kw, cross section area of copper core wires must be at least 2.5mm

2. The air conditioner must be safely earthed! Earth wire must be connected to special device of the building instead of water pipe or gas pipe.

3. Wiring must be done by special technician according to relevant electrical safety rules and regulations.

4. In fixed circuit, there must be electricity leakage protection switch of enough power capacity and air switch with enough space.

5. Shut down power supply when not using the air conditioner.

Safety requirements:

Please read this manual carefully prior to using the air conditioner and contact your local dealer or designated service center for help if there are any questions or problems. The air conditioner is only suitable for purposes described in this manual.

NEVER use or store petrol or other inflammable gas or liquid near the air conditioner that’s very dangerous! The air conditioner is not equipped with a device to bring in fresh air from outdoors, so when you are using a heater fueled by gas or petrol in the same room, please open the door or window regularly, as such kind of heater will consume oxygen in the air and may cause people to feel uncomfortable for lack of oxygen.

. Please discuss with the local dealer or professional technician for details.

CAREFUL

Don’t start or stop the air conditioner by turning the power supply on or off and please press the

ON/OFF key instead.

Don’t insert anything into the air intake grille or the air outlet.

Don’t let young children operate the air conditioner.

If there are young children or sick people in the room, please readjust the set temperature accordingly.

Working temperature range

Working

conditions

Heating

Temp. Indoor temperature Outdoor temperature

Max. 27

Min. 20

dry bulb 24 dry bulb / 18 wet bulb

dry bulb -5 dry bulb / -6 wet bulb

STRUCTURE

MODELS & SPECIFICATIONS

All above should be changed without notice, there are latest and accurate specifications on the nameplate of your

air conditioner.

Cooling capacity (W)

Heating capacity (W)

Power supply

Input power (W)

Air flow volume (m

/h)

Refrigerant

Noise (in/out) dB(A)

Climate

Water resistance level

Isolation

Weight (in/out) (kg)

Dimension(in/out)

(W H D) (mm)

Model

Functions

RFI-66B /RFO-66B

6400/6200(9700)

16000

18000(21500)

380-415V 3N~ 50Hz

2000

58/63

IP24

60/115

Indoor:540

1750 380

Outdoor:950

1250

412

Cool Heat

R410A 5.0

CONTROL PANEL

Floor standing type air conditioner with LCD control panel

SWING key

Choose between SWING and stop

modes.

LCD screen

FAN SPEED key

Choose between AUTO/LO/MED/

HI speeds.

MODE key

Choose between AUTO/COOL/

DRY/FAN/HEAT modes.

ON/OFF key

Press once to start and press

once more to stop the unit.

SET TEMP. key Every time when pressing

,the set

room temperature is lowered by 1

every time when pressing

, the set

room temperature is raised by1

.The room temperature can be set between 16-30

. In normal operation, pressing the two keys at the same time will shield the screen, and pressing the two keys once more will release the shield.

When the air conditioner is in OFF mode, the key is used to set the time when the unit is to be started. and every time when pressing, the time interval being set will be 0.5 hour more or less, ranging from

0.5-24 hour (s). when the set time arrives, the unit will run in the set modes. When the air conditioner is in ON mode,the key is used to set the time when the unit is to be stopped, and the time interval to be set scrolls between 0.5-24 hour (s). When the set time arrives,the unit will stop running.

SPECIAL FUNCTIONS:

Test function:

Every time when the unit is plugged on and there is not any key signal is accepted: (1) Press SET TEMP. key

to enter forced cooling mode, the compressor starts and the unit is in auto swing mode, indoor and outdoor fans run at high speed. LCD displays all symbols. Five minutes later, the unit stops and enter normal waiting mode.

(2) Press SET TEMP. key

to enter forced heating mode, the compressor and supplementary electric heater starts and the unit is in auto swing mode, indoor and outdoor fans run at high speed. LCD displays all symbols. Five minutes later, the unit stops and enter normal waiting mode.

Compressor running protection function:

In all modes, compressor needs 3 minutes to restart once it has been stopped; if there is no changes in

mode, the compressor will keep running for 6 minutes before it can be stopped. Between changes of modes, compressor will stop for 3 minutes.,

Shielded screen function:

In normal running, pressing the two SET TEMP. keys and at the same time will shield all

functions of keys on the screen, pressing the two key simultaneously once more will release the shield.

- 7 -

- 8 -

- 9 -

- 10 -

- 11 -

- 12 -

- 13 -

- 14 -

- 15 -

2. Breeze guided up and down

Readjust breezing angles of air louvers with hands. Hold two ends of the louvers with both hands when doing the readjustment. When cooling and drying, set to breeze straightly or upwards; when heating, set to breeze downwards.

When cooling and drying, set to breeze straightly or upwards

1. Breeze guided left and right

* Press SWING key on control panel

to choose SWING and END SWING, then the swing louvers will swing left and right or stop swinging and breeze from a fixed direction.

Every time when pressing SWING, “SWING” will appear

on LCD,if indoor fan is already working, then swing motor will start and breeze left and right ;press the key once more, “SWING” disappears from LCD, swing motor stops, the louvers stop swinging and breeze from a fixed direction.

Breeze Guided

Swing louvers (guide wind breeze horizontally).

Breeze straightly

Breeze upwards

When heating, set to breeze downwards.

Breeze downwards.

MAINTENANCE

1.Cut power off before cleaning

Cleaning unit Cleaning the air filter

Air filter should be cleaned every two weeks

Removing air filter

Make sure that the A/C has been turned off. Remove screw from handle of air intake grille. Pull out air intake grille by the handle towards

direction.

Air filter is attached to the air intake grille. Pull out

the filter towards direction.

Cleaning

Clean by patting the filter softly or use an electric

vacuum. If too much accumulated on the filter, use water with containing some neutral detergent to clean, then wash with tap water. Dry after cleaning and put it back into place.

Note

Do not dry the filter by exposing it under direct sun-

shine or near a heating oven, or it may get deformed.

The filter may get deformed when it is cleaned with

hot water (above 50

2.Use soft cloth when cleaning

cabinet.

If the cabinet is very dirty, dip cloth into warm water below 40

, dry the cloth and

then rub off the dirt.

3. Don’t use acid and alkaline solution to clean.

* Make sure there is nothing

blocking the air in and out of the outdoor unit.

4. Don’t spray water on indoor unit

Care and maintenance

Plug out only after air conditioner stops at all.

If your air conditioner is not working properly, please check the following before asking for help. After checking the following point and the A/C is still not working normally, please contact the nearest service center to examine it.

The A/C does not start

The A/C stops soon after started, screen displays “E1”

The A/C stops soon after started, screen displays “E2”

TEMP. indicates 0

and the COOL mode is not working

Poor cooling performance

Poor heating performance

1. No power

2. Electricity leakage switch shut down

3. Voltage too low

4. Operation key turned off

5. Controlling circuit troubles

1. Blocking in front of condenser

2. Controlling circuit troubles

3. Cooling operation when outdoor temp. is above 43

4. The tube pressure is too high.

1. Indoor fan motor doesn’t work or air outlet get blocked

2. Indoor temp. is below 18

3. Wire of tube temp. sensor broken

4. Tube temp. sensor not in place

5. Controlling circuit troubles

6. Electricity leakage of capacitor

1. Wire of room temp. sensor broken

2. room temp. sensor not in place

3. Electricity leakage of capacitor

1. Air filter is too dirty or get clogged

2. There are too many people or heating sources in the room

3. Door or window opened

4. Air in/out is blocked

5. Set temp. too high

6. Leakage of refrigerant

7. Poor performance of room temp. sensor

1. Air filter is too dirty or get clogged

2. Door or window opened

3. Set temp. too low

4. Leakage of refrigerant

5. Outdoor temp. below-5

6. Controlling circuit troubles

1. Connect to power supply

2. Contact service center

3. Contact electrician or dealer

4. Press Operation key again

5. Contact service center

1. Clear blocking

2. Contact service center

3. Put outdoor unit at shady place

4. Contact service center

1. Contact service center

2. Check if there is the need to turn on the A/C

3. Contact service center

4. Fit tube temp. sensor into place

5. Contact service center

6. Contact service center

1. Connect wire of room temp. sensor

2. Fit room temp. sensor into place

3. Contact service center

1. Clean air filter

2. Clear heating sources if possible

3. Close door and window

4. Clear blocking to insure free air flow

5. Set lower temp.

6. Contact service center

7. Replace room temp. sensor

1. Clean air filter

2. Close door and window

3. Set higher temp

4. Contact service center

5. Heating performance is affected

6. Contact service center

Troubles Possible Causes Solution

Trouble shooting

The A/C stops soon after started, screen displays “E3”.

The A/C stops soon after started, screen displays “E4”.

1.Leakage of refrigerant

2.Controlling circuit troubles

1.Contact service center

2.Contact service center

1.Leakage of refrigerant

2.Controlling circuit troubles

3.wire of sensor broken

4.Voltage is too low

1.Contact service center

2.Contact service center

3.Contact service center

4.Contact service center

INSTALLATION

Electric wiring

Please read this manual carefully before installation. Please strictly follow the instructions of this manual when installing indoor unit and its piping. First install wire of outdoor unit and then wire of indoor unit. After finishing wiring and piping, connect the unit to the power supply. Design of the unit is subject to change without prior notice.

Wiring Example

Model

Power supply

Input capacity Air switch

Lines

Cross section area of

power cord (mm

)

Minimum cross section area

of indoor/outdoor power

connecting cable (mm

)

Note:

1. Please pay attention to surrounding conditions (eg. ambient temperature, direct sun shine, rain drops etc.).

2. When the voltage declines, please use thicker power conducting wires.

3. Earth wire must be connected to both of indoor and outdoor units.

4. Data listed in this table is for reference only, and please do the wiring according to relevant government rules a

nd regulations.

25A

2.5/1.5

380

RFI-66B/RFO66B

-415V 3N~50Hz

Special circuit must be used for power supply.

The circuit must be installed by special serviceman.

Please do the wiring according to the following wiring diagram. The screws must be tightly fastened.

Connecting wire and power conducting wire between the indoor/outdoor units must be properly arranged so that they

do not touch each other.

Please connect the power phase correctly. If the connection is wrong, the unit will stop automatically in such case,

exchange the connection of two of the three phasewires and the air conditioner can work normally again.

Notes for piping

Pipes for refrigerant and drainage should be insulated to avoid frosting and dripping. Both of the indoor and outdoor units adopt flare-end connection.

Refrigerant pipe as shown below is used to connect indoor and outdoor units. Note: Don’t bend the bendable pipe back and forth more than 3 times.

Note: Insulate all exposed parts of the flare-end connection joint and the refrigerant pipe.

2. When using copper pipe bought locally Check valve of the outdoor unit should be shut (like position unworking). After the refrigerant pipe has been connected to both indoor and outdoor units, exhaust from service mouth on low-pressure check valve of the outdoor unit. After exhausting, put back nut of the service mouth and fasten.

3. After finishing step 1 and 2, check valve of outdoor unit should be fully open so that there is not blockage between

the indoor and outdoor refrigerant pipe. Note: before fastening nut of the flare-end pipe, please apply some refrigerant oil to the end of the pipe and the joint.

1. Connecting the pipe Check valve of the outdoor unit should be shut (like position unworking). Every time when connecting, remove bonnet from the check valve and connect to flare-end pipe immediately (within five minutes), otherwise dust, moisture and other small things may go into the pipe and cause troubles.

About the bendable pipe

The part with bendable pipe should be used on the indoor side. The bending angle should not be more than 90. It’s better for the bend to be in the middle of the pipe, and the radius of the bend is the bigger the better. Don’t bend the bendable pipe more than three times.

When bending the pipe

Cut some part of the insulation pipe at the place of the bend (and wrap with polythene tape after bending) Make radius of the bend as big as possible so that the pipe will not get flat or broken.

Indoor unit

Bendable pipe

19 1

Flare-end connection

12 1

Outdoor unit

Polythene tape Insulation cover

Loosen the roll of pipe Straighten end of pipe

Bend the pipe with thumb

Minimum radius: 100mm

Installation of indoor unit

1. Choose a place 2. Install pipes

Where it’s least likely to be affected by outdoor air. Where free flow of air in and out of the unit will not be blocked. Where the refrigerant pipe can be easily lead outdoors. Where conditioned air can reach every corner of the room. Where there is not too much moisture and can not be easily splashed

with oil.

Where there inflammable gas is not likely to leak or stay. Choose a solid and even ground. Leave enough space for installation and maintenance.

Remove air intake grille. Before wiring and piping, please remove air intake grille. Remove screw from the grille. Open the grille by pulling it out by the handle. Remove chain and take off the whole grille.

3. Install drainage pipe

Make sure drainage pipe is leading to the outdoor side (discharge side.) Joint drainage pipe with blow moulding drainage pipe and fix with tape from the accessories. If the drainage pipe needs to be led indoors, please wrap it with insulation material (at least 9mm thick), and then wrap with tape to prevent

air from going into the pipe and cause congealing.

After connecting, check if water can be discharged properly and if there is any leaking.

>30cm

>4cm

>5cm

>10cm (Pipe side:30cm min.)

Front

>200cm

>10cm

(Pipe side:

30cm min.)

Chain

Screw

Handle

Drainage pipe

19 1

Refrigerant pipe

12 1

Flare-end connection Flare-end connection

Drainage pipe of indoor unit

Blow moulding drainage pipe

Drainage pipe

Wrapping tape

Signal wires

(2) For heating pump type units (5 phawe)

Terminal board of indoor units

Power supply

Terminal board of outdoor units

Wire interface

L1 L2

L3 N

L1 L2

L3 N

Air switch capacity

Models

RFI-66B/RFO-66B

25A

Installation of outdoor unit

1. Choose a place

Note:

The outdoor unit must be installed on

solid foundation to minimize noise and

vibration.

The air outlet must not be blocked.

In coastal area, places of high altitude

or strong wind, please install the unit

against the wall or use wind block.

Install the unit with good ventilation

instead of a sealed space.

Installation hole size: 572x327mm.

2. Connecting of refrigerant pipe

Tightening joint

Match pipes

Screw nut with hand and then tighten with wrench (see figure below).

Be careful not to twist too tightly or

the nut may get damaged.

Open valve stem until it touches limit

block and don’t open further.

Tighten bonnet with wrench.

When operating the check valve, please note:

Diameter

(mm)

Twisting moment

(N m)

12 45-50

19 70-75

Length of

pipe

Exhausting

Value of refrigerant

charge

5-15m

Use refrigerant of outdoor

unit

As value on the

nameplate

Use

vacuum

pump

Nameplate value

+30g/m (charge 30g

more for every meter

added to the pipe

Manifold Valve

Multimeter

-76cmHg

Lo Handle

Charging hose

Manometer

Hi handle

Charging hose

Vacuum pump

Low pressure valve

Joint nut

Limit block

Bonnet

one-way valve

Valve stem

Exhausting (with

hexagon wrench)

*1.See section about vacuum pump or refrigerant tank. *2.Charge refrigerant according to value listed above. If the unit is to be moved to other place, please evacuate with vacuum pump or refrigerant tank.

When using refrigerant of outdoor unit: *1.Tighten nuts A,B,C,D substantially. *2.Remove cover from check valve A. *3.Twist open core of liquid valve B with hexagon wrench, and at the same time hold screw driver against core of gas valve A to let gas out. After 15 seconds of exhausting and refrigerant appears, close one way valve and tighten bonnet. *4.Fully open cores of both liquid valve and gas valve, tighten bonnet, then check with soap water or leakage detector to see if there is any leaking in the joints of piping between indoor and outdoor units.

*6.Fully open high/low pressure valves. *7.Remove charging hose from charging end of low pressure valve. *8.Tighten bonnet

of low pressure

valve.

When using the vacuum pump *1.Connect charging hose of manifold valve to charging end of low pressure valve (both high/low pressure valves must be tightly shut). *2. Connect joint of charging hose to vacuum pump. *3.Fully open handle of Lo manifold valve. *4.Ope n the vacuum p ump to evacuate. At the beginning, slightly loosen joint nut of low pressure valve to check if there is air coming inside. (valve of vacuum pump changes from negative to 0) Then tighten this nut. *5.After finishing evacuation, shut Lo handle of manifold valve to stop the vacuum pump. Keep evacuating for more than 15 minutes and make sure the rea

ding of multimeter is -1.0x10

(-76cmHg).

Outdoor unit

Gas side

Indoor unit

Check valve

Pipe joint

12mm

19mm

+ 56 hidden pages

INVENTOR RFI-66B, RFO-66B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual