Midea V4 Plus S Series Manuel utilisateur

Control System

2.6 V4 Plus R Series: KJR-120B

KJR-120B

Wired controller specifications

Model KJR-120B/BKP-E

Power Supply Voltage

5.0

Ambient Temperature Range -5°C～+43°C

Ambient Humidity Range RH40%~RH90%

Performance features

1. Operating mode: cool, heat, dry, fan and auto.

2. Set the mode through buttons.

3. Indoor setting temperature range: 17°C ~30°C.

4. LCD (Liquid Crystal Display).

5. Auto mode for V4 plus R series.

2.6.1 Functions summary

The controller has functions as follows:

1) Can compatible with the V4 plus heat recycling 3-pipe system and V4 plus 2-pipe system.

2) Clock and Timer function;

3) Auto-restart function;

4) Query function;

5) Indoor unit error display function

6) Auto mode and air filter cleaning reminding function

7) Can switch Fahrenheit degree and Centigrade degree.

Control System

Control System 68

2.6.2 Appearance

(2) ON/OFF button

Press the On/Off button to control the indoor unit on and off state.

When the unit is turned off, press this button, the unit will be turned on and the operation icon lights on.

When the unit is turned on, press this button, the unit will be turned off and the operation icon lights off.

(2) Mode button

 Press the button to select the operation mode, each press will change as following order:

AUTO→COOL→DRY→ HEAT→FAN→AUTO

 Cool-only mode will change as following order:

COOL→DRY→FAN→COOL

Notes: Heat-only mode can only set to HEAT mode.

 When mode setting is in progress, the screen light the mode "set" string and display the setting mode of

the wired controller. After the mode setting is completed, "set" strings extinguish and the screen display

the actual operation mode of the indoor unit.

 The indoor unit has 3 different actual operation modes: COOL/HEAT/FAN. The actual operation mode of

the indoor unit may be different from the setting mode of the controller. For example: If the setting mode is

AUTO, the actual operation mode of the indoor unit may be COOL or HEAT. If the setting mode is DRY, the

actual operation mode of the indoor unit is COOLING.

MODE Button

Left Button

FAN SPEE D

Button

Transmitting Icon

Temp. Setting Button Timer/Clock Setting Button

Operating Ico n

Setting

Temperature

Operating Mode

ON/OFF

Button

Silent/OK

Button

Right Button

Operating Fan

Speed

Timer/Clock

Display Area

Function Icon

Swing Icon

Locking Icon

Control System

(3) Clock setting

First power on or reset the wired controller, the clock will display 12:00. Long pressing the Timer/CLOCK

button for 2 seconds can enter to the clock setting state. At this time, the minute position will be flashed; press

or button can adjust the minute.

After finishing the hour setting, press left button or right button to switch to minute position

setting, then the minute position will flash, press and to adjust the minute value.

After finish the clock setting, press the button or wait for 5 seconds to confirm and exit the setting

state.

(4)Timer setting

Press the timer/clock setting button to enter the timer on setting state, and the screen will display and

Press and buttons can adjust the timer. When the timer setting is less than 10 hours, each press

or button will increase or decrease 0.5 hour. When the timer setting is more than 10 hours, each press

or will increase or decrease 1 hour, the maximum timer setting is 24 hours.

After adjusting the timer on setting, press the button or wait for 5 seconds to confirm and exit the timer

on setting.

Under the timer on setting state, press the timer/clock setting button, then enter into the timer off setting state,

and the screen will display and .

The setting method of timer off is the same as the timer on.

Under timer setting state, set the timer on and timer off to be 0.0h can cancel timer on and timer off.

Notes:

If the controller has been set timer on/ off, press the ON/OFF to turn on/ off the unit and the timer will be

canceled simultaneously.

(6) Fan speed

Under COOL, HEAT and FAN modes, press the fan speed button can adjust the fan speed setting.

Under AUTO and DRY modes the fan speed is not adjustable and the fan speed defaults auto speed.

1) Press the FAN SPEED button to set the fan speed of indoor unit. The fan speed switch order as follow:

2) Under AUTO and DRY modes the fan speed is not adjustable and the fan speed defaults auto speed.

(6)Temperature setting

Press the temperature adjusting buttons or to increase or decrease the setting temperature. Under

AUTO/COOL/DRY/HEAT operating mode can set the temperature, the setting range: 17℃-30℃(62℉-88℉).

Control System

Control System 70

The setting temperature cannot be adjusted under the FAN mode.

(7) Swing function

Press the swing button to activate the swing function when the fan of indoor unit is turned on, and the

swing icon will be lighted up. Press this button again can turn off the swing function, and the swing icon

lights off. This function is effective when it is used with the relative indoor unit.

(8) Silent mode

Under the COOL, HEAT, FAN modes, press the silent button can enter the silent operation. It is used

to reduce the running noise through setting the fan speed to low.

Under the AUTO, DRY mode, the fan speed is auto and the silent button doesn’t work.

(9) Locking wired controller

Press the temperature adjusting buttons and simultaneously, the wired controller enters locking

state, and the locking icon will be lighted up.

Under the locking state, the wired controller will not respond from the buttons pressing and the command of

the remote controller.

Press the temperature adjusting buttons and simultaneously again can cancel the locking state.

(10) Query function

Long press the FAN SPEED button and Silent /OK button will display the temperature from temperature sensor.

Use and buttons can switch display of room temperature (Tf), middle evaporator temperature t2

and evaporator-outlet temperatureT2b. Press button or wait 5s will exit the query function and back to

normal display.

(11) Air filter cleaning reminding function

The wired controller records the total running time of the indoor unit, when the accumulated running time

reaches the pre-set value, the air filter cleaning reminding icon will be lighted up to remind users need to

clean the air filter of the indoor unit.

Long press button for 2 seconds, and reset the reminding icon and the wired controller will

re-accumulate the total running time of the indoor unit.

The default setting value of the reminding function is 2500 hours, and it can change to be 1250 hours, 5000

hours or 10000 hours.

(13) Auto operation mode (3-pipe system)

1) 3-pipe system auto operation mode can automatically switch to COOL mode or HEAT mode depending on

the temperature difference between setting temperature(Ts) and indoor temperature(Tf), and the fan speed is

adjustable.

Control System

2) The wired controller will set the unit to operate on heating mode when Ts minus the Tf difference value is

over than ΔT, and changeover to cooling mode when Ts minus the Tf difference value is less than -ΔT. The

minimum operating mode switching interval is 15 minutes.

3) Under 3-pipe system auto operation mode, the auto mode icon "" flashes, and the COOL or HEAT icon

will be lighted up depending on the actual operation mode.

4) The default ΔT is 2°C, the value can be changed from 1~4°C. Please refer to WIRED REMOTE

CONTROLLER INITIAL PARAMETER SETTING for detailed setting methods.

5) The auto operation mode of the controller cannot be changed by other control terminals, such as wireless

remote controller, central remote controller, etc.

Notes:

1) The wired controller can be used in a 2-pipe system; in that case the controller should be set to 2-pipe

system mode.

2) For a 2-pipe system, auto operation mode will set the unit to operate on COOL mode and the fan speed is

set to auto and is not adjustable.

2.6.3 Codes description

The wired controller KJR-120A can display the fault codes when the units malfunction or protection, the code

as follow:

Codes

Description

E0 Modes confliction of the indoor unit

E1 Communication malfunction between indoor/outdoor units

E2 T1 sensor malfunction

E3 T2 sensor malfunction

E4 T2B sensor malfunction

Ed Outdoor unit malfunction

EE Water level switch checking malfunction

F2 Wired controller EEPROM malfunction

F3 Communication malfunction between wired controller and indoor unit

F4 Wired controller temperature sensor malfunction

Notes:

1. The wired controller cannot display the EEPROM malfunction of the indoor unit

2. Under a state of fault display, wired controller does not respond to any button operation.

2.6.4 Wired controller initial parameters setting

1. Change the related functions of the controller through adjusting the initial parameters, details refer to table 1.

2.The wired remote controller initial parameter include two codes "XY", the first code "X" means function class,

the second code "Y" means the detailed configuration of this function.

3.Setting method:

① Simultaneously long press "Mode" and "Fan" button of the wired remote controller for 5 seconds to enter

the parameter setting state;

Control System

Control System 72

② The value of this first code "X" is "0", press the temperature setting button and to adjust the

second code value;

③ After setting the second code value, press Silent/Ok button to switch the first code to the next

value;

④ When the first code value is "6", press Silent/Ok button again will exit the parameters setting.

3. The parameters setting function only under the situation which needs to adjust the default functions'

setting states; otherwise there is no need to do the setting.

Table 1

First

code

Function

Second code

Cool

only/Cool

Heat

selection

Cool

Heat

(Default) Cool-only /

Power

off memory

Yes(Default)

None

Filter

cleaning

reminding

Cancel the

reminding icon

1250 hours

2500 hours

(Default) 5000 hours

10000 hours

Centigrade/ Fahrenheit

display

Centigrade

(Default) Fahrenheit /

pipe system/ 2

pipe

system

pipe

system

(Default)

pipe

system /

8 Setting ΔT value / 1°C

2°C

(Default) 3°C 4°C

2.6.5 Installation

1) Safety precaution

Stated below are important safety issues that must be obeyed. Confirm there is no abnormal phenomena

during test operation after complete.

Installation by other persons may lead to imperfect installation, electric shock or fire. Improper installation

may lead to electric shock or fire. A random disassembly may cause abnormal operation or heating, which

may result in fire.

Do not install the controller in a place vulnerable to leakage of flammable gases. Once flammable gases

are leaked and left around the wired controller, fire may occur.

The wiring should adapt to the wired controller current. Otherwise, electric leakage or heating may occur

and result in fire. The specified cables shall be applied in the wiring. No external force may be applied to

the terminal. Otherwise, wire cut and heating may occur and result in fire.

Don’t place the wired controller near the lamps, to avoid the remote signal of the controller to be disturbed.

Do not install the unit and controller in a place with much oil, steam, sulfide gas. Otherwise, the product

may deform and fail.

Control System

※ Preparation before Installation:

Make sure the following pasts has been prepared.

NO.

Name

QTY.

Remarks

Wire

Con

troller

Wood mounting screw

M4×20(For mounting on the wall)

mounting screw

M4×25(For mounting on the electrical switch box)

Installation manual

Owner's manual

Plastic screw bar

For fixing on the 86 electrician box

Switch

ing wires for

signal receiving board 1

For connecting the signal receiving board and

4-core shielding wire

Switching wires for wire

controller signal 1

For connecting the main control panel and 4

core

shielding wire

※ Prepare for the following at installation site.

NO.

Name QTY. Remarks

core shielded cable

The

longest length should be less than 15m.

86 Electrician box

Wiring tube(insulating sleeve

and tightening screw) 1 /

2) Dimension: 120*120*20mm

3) Wiring Principle Sketch:

Figure A

Unit: mm

Figure A

Fig.1

Display Panel

3-cores shield wire

X Y (E)

WHITE

Indoor Main Board

RED

INDOOR UNI T CONNECTOR

INDOOR UNIT

2-cores wire

4-cores wire

Wired controller

YELLOW

BROWN

BLACK

RED

A B C D

GND(E)

Control System

Control System 74

Notes:

1) This wired controller is compatible with the indoor unit of V4 plus heat recycling 3-pipe system and V4+

2-pipe system.

2) Please do not connect the wired controller and a CCM. to the same X, Y ,E port, otherwise it will lead to

conflict.

4) Back cover installation

 Use straight head screwdriver to insert into the buckling position in the bottom of the wired controller,

and spin the screwdriver to take down the back cover. (Pay attention to spinning direction, otherwise

will damage the back cover!) (Fig.2)

 Use three GB950-86 M4X20 screws to directly install the back cover on the wall. (Fig.3)

 Use two M4X25 GB823-88screws to install the back cover on the 86 electrician box, and use one

GB950-86 M4X20 screw for fixing on the wall. (Fig.4.1)

 Adjust the length of two plastic screw bars in the accessory to be standard length from the electrical

box screw bar to the wall. Make sure when install the screw bar to the electrical box screw bar, make

it as flat as the wall. (Fig.4.2)

 Use cross head screws to fix the wired controller bottom cover in the electric control box through the

screw bar. Make sure the wired controller bottom cover is on the same level after installation, and

then install the wired controller back to the bottom covers.

 Over fasten the screw will lead to deformation of the back cover.

Buckling position

Back cover

Front cover

Straight head screwdriver

Fig.2

Screw hole installed on

the wall,use three

GB950-86 M4X20

Fig.3

Screw hole fixed on

the wall,use one

GB950-86 M4X20

Screw hole installed

on 86 Electrician box,

use two M4X25

GB823-88

Fig.4.1

Fig.4.2

86 Electrician box

Signal switching wires

Back cover

Control System

5) Wiring figure

A. Wiring, three outlet positions

B. Shielded wiring

6).Front cover installation

Notes:

1. After adjusting the front cover and then buckle the front cover; avoid clamping the communication switching

wire during installation. (Fig.9)

2. Correct install the back cover and firmly buckle the front cover and back cover, otherwise will make the front

cover drop off. (Fig. 10)

Upper left wire outlet

op side

wire outlet

Left middle

side wire

outlet

Fig.5

Cutting place of top

side wire outlet

Cutting place of upper

left wire outlet

Cutting place of left

middle side

wire outlet

Fig.7

Putty

Trap

Trap Trap

Fig.9 Fig.10

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