INVENTOR LV4MDI-07 Guide

• This manual gives detailed description of
the precautions that should be brought to
your attention during operation.
• In order to ensure correct service of the
wired controller please read this manual
carefully before using the unit.
• For convenience of future reference,
keep this manual after reading it.

1. SAFETY PRECAUTIONS................................................................3
2. INSTALLATION ACCESSORY.........................................................4
3. INSTALLATION METHOD. ..............................................................6
4. SPECIFICATION............................................................................12
5. FEATURE AND FUNCTION OF THE WIRED CONTROLLER...... 13
6. NAME ON THE LCD OF THE WIRE CONTROLLER....................14
7. NAME OF BUTTON ON THE WIRE CONTROLLER. ...................15
8. PREPARATORY OPERATION. .....................................................17
9. OPERATION..................................................................................18
10. TIMER FUNCTIONS......................................................................23
11. WEEKLY TIMER. ...........................................................................26
12. FAULT ALARM HANDING. ............................................................33
13. TECHNICAL INDICATION AND REQUIREMENT. ........................33
CONTENTS

3
1. SAFETY PRECAUTIONS
• Read the safety precautions carefully before installing the unit.
• Stated below are important safety issues that must be obeyed.
WARNING Means improper handling may lead to personal death or
severe injury.
CAUTION Means improper handling may lead to personal injury or
property loss.
WARNING
Please entrust the distributor or professionals to install the unit.
Installation by other persons may lead to imperfect installation, lectric shock or re.
Adhere to this installation manual.
Imporper installation may lead to electric shock or re.
Reinstallation must be performed by professionals, improper installation may lead to elec-
tric shock or re.
Do not uninstall the unit randomly.
Random uninstalling may lead to abnormal operation, heating or re of the air condition.
NOTE
1. Do not install the unit in a place vulnerable to leakage of ammable gases.Once amma-
ble gases are leaked and left around the wire controller, re may occure.
2. Do not operate with wet hands or let water enter the wire controller. Otherwise, electric
shock may occur.
3. The wiring should adapt to the wire controller current. Otherwise, electric leakage or
heating may occur and result in re.
4. The specied 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 re.

4
2. INSTALLATION ACCESSORY
Select the installation location
Don’t install at the place where cover with heavy oil, vapor or sulfureted gas, otherwise,
this product would be deformed that would lead to system malfunction.
Preparation before installation
1. Please conrm that all the following parts you have been supply.
No. Name Qty. Remarks
1Wire controller 1
2Installation and owner’s manual 1
3Screws 3 M4X20 (For Mounting on the Wall)
4Wall plugs 3 For Mounting on the Wall
5Screws 2 M4X25 (For Mounting on switch box)
6Plastic screw bars 2 For xing on switch box
7The connective wires group 1 Optional
No. Name Qty. (embeded
into wall)
Specication (only for
reference) Remarks
1Switch box 1
2
Wiring Tube(lnsulating
Sleeve and Tightening
Screw)
1
2. Prepare the following assemblies on the site.

5
Precaution of install the wire controller
1. This manual provides the installation method of wire controller. Please refer to the
wiring diagram of this installation manual to wire the wire controller with indoor unit.
2. The wire controller working in low voltage loop circuit. Forbid to directly contact the
cable of 220Vcommercial electricity or of 380V high voltage, and don’t wire this kind
of wire in the said loop; wiring clearance between congured tubes should at the
range of 300~500mm or above.
3. The Shielded wire of the wire controller must be grounded reliable.
4. Upon nish the wire controller connection, do not employed tramegger to detect the
insulation.
5. The connective cable of wire controller should not be longer than 20 meters.
2. INSTALLATION ACCESSORY

6
Fig 3-3
CN40
-----------------------------------
-----------------------------------
-----------------------------------
-----------------------------------
red
black
yellow
brown
red
black
yellow
brown
3. INSTALLATION METHOD
1 .Wired remote controller structure size gure
Fig 3-1
120
122
18.5
83.5
46
62
2.Wiring Principle Sketch:
4-Core Shield Cable,
the length is decided
by installation
Insert of the
mainboard CN40
Indoor unit mainboard
Wire controller

7
Fig 3-3
CN40
Slots
3. INSTALLATION METHOD
3.Wiring gure
• Connect the female joint of wires group from the mainboard with the male joint of
connective wires group. (See Fig.3-3)
• Please connect the other side of connective wires group with the male joint of
wires group leads from wire controller. (See Fig.3-3)
4.Remove the upper part of wire controller
• Insert a slot screwdriver into the slots in the lower part of the wire controller (2 places),
and remove the upper part of the wire controller. (Fig.3-4)
NOTICE
The PCB is mounted in the upper
part of the wire controller. Be
careful not to damage the board
with the slot screwdriver.
4-core shielding wire
The connective wires group Mainboard

8
NOTICE
Put on a at surface. Be careful not to distort the back plate of the wire con-
troller by overtightening the mounting screws.
3. INSTALLATION METHOD
4. Fasten the back plate of the wire controller
• For exposed mounting, fasten the back plate on the wall with the 3 screws (M4x20) and
plugs. (Fig.3-5)
• For ush-mounting, fasten the back plate on the switch box with 2 screws (M4x25) and
fasten it on the wall with 1 screw (M4x20). (Fig.3-6)
Back plate
Back plate
Screws (M4x20)
Screws (M4x20)
Screws (M4x25)
Fig 3-5
Switch box
Fig 3-6

9
Fig 3-7
5. Battery installation
3. INSTALLATION METHOD
• Put the battery into the installationsite and make sure the positive side of the battery is in
accordance with the positive side of installationsite.(See Fig.3-7)
• Please set the time corrected on the rst time operation. Batteries in the wire control-
ler can timing under power failure which ensure the time keep right. When the power
restores, if the time displayed is not correct, it means the battery is dead and replace the
battery.

10
3. INSTALLATION METHOD
6. Wiring
Line groove
Line groove
Line groove
Left side
wire outlet
Right side
wire outlet
Bottom side
wire outlet
Top side
wire outlet
A. For wiring in the slot, four outletting posi-
tions. There are three need cutting.
Cutting place
of top side wire
outlet
Cutting place
of left side wire
outlet
Cutting place
of right side
wire outlet
B.Shielded wiring
Embedded
switch box wiring Wiring through the wall
Wiring hole Wall hole and wiring hole Diameter of
wall hole: Φ20mm
Putty
Fig. 3-8
Fig. 3-9 Fig. 3-10
Putty
Putty
Trap
Trap
Trap
CAUTION
Avoid the water enter into the wired remote controller, use trap and putty to seal the con-
nectors of wires during wiring installation. (Fig.3-10)
When under installation, reserve certain length of the connecting wire for convenient to
take down the wired remote controller while during maintenance.

11
Fig. 3-11
Trap
7.Reattach the upper part of the wire controller
• After adjusting the upper case and then buckle the upper case; avoid clamping the
wiring during installation. (Fig 3-11)
3. INSTALLATION METHOD
All the pictures in this manual are for explanation purpose only.
Your wire controller may be slightly different. The actual shape shall prevail.

12
4. SPECIFICATION
Input voltage DC 5V/DC 12V
Ambient temperature -5~43°C (23~110°F)
Ambient humidity RH40%~RH90%

13
Feature:
LCD display.
Malfunction code display: it can display the
error code, helpful for service.
4-way wire layout design, no raised part
at backside, more convenient to place the
wires and install the device.
Room temperature display.
Weekly Timer.
Function:
Mode: choose Auto-Cool-Dry- Heat -Fan
Fan speed: Auto/Low/Med/High speed
Vertical swing & Horizontal swing(on some
models)
Timer ON/OFF Temp, setting Weekly timer
Follow Me Child Lock
PTC heater (on some models)
LCD display Clock
Infrared remote receiver (on some models)
Lifting panel (on some models)
5. FEATURE AND FUNCTION OF THE WIRED CONTROLLER
Dimension:
HxWxD(mm) 122x120x18.5
swing swing

14
1. Operation mode indication
2. Fan speed indication
3. Left-right swing indication
4. Up-down swing indication
5. Faceplate function indication
6. Main unit and secondary unit indication
7. Follow me function indication
8. PTC function indication
6. NAME ON THE LCD OF THE WIRE CONTROLLER
123457
9
10
11
12
13
15 14
68
9. C°/F° indication
10.Temperature display
11.Lock indication
12.Room temperature indication
13.Clock display
14.On/Off timer
15.Timer display

15
7. NAME OF THE BUTTON ON THE WIRE CONTROLLER
1
2
3
4
56
7
8
9
10 11
12
13
swing swing

16
1. Power Button
2. Mode(A/B) Button
3. Adjust Button
4. Fan speed Button
5. Up-down Airow Direction and Swing Button
6. Left-right Airow Swing Button
7. Follow me(PTC) Button
8. Tinner Button
9. Day off(Del) Button
10.Conrm Button
11.Back Button
12.Copy Button
13.Infrared remote receiver (on some models)
7. NAME OF THE BUTTON ON THE WIRE CONTROLLER

17
8. PREPARATORY OPERATION
Set the current day and time
Press the Timer button for 3 seconds
or more. The timer display will ash.
1
2
3
4
5
Press the button” + “or” - “to set the date.The
selected date will ash.
The date setting is nished and the time setting is prepared after
pressing Timer button or there is no pressing button in 10 seconds.
Press the button “+”or”-”to set the current time.
Press repeatedly to adjust the current time in 1 -minute
increments.
Press and hold to adjust the current time continuous.
ex.Monday AM 11:20
The setting is done after pressing Timer button or there is no
pressing button in 10 seconds.
timer
timer
timer

18
9. OPERATION

Remote signal receiving function
The wired remote controller can be a remote signal receiving device, you can use the
wireless remote controller to control the air-conditioner through the wired remote con-
troller when the system have been powered on.
To start/stop operation
Press the Power button.
Operation lamp
Air conditioner ON :Lit brightly
Air conditioner OFFiNot lit
power
To set the operation mode
Operation mode setting
Press the Mode button to set the operation mode. (Heat
function is invalid for cool only type unit)
Mode A/B
Room temperature setting
Press the button” + “or” - “to set the room temperature.
Indoor Setting Temperature Range: 17~30°C (62~86°F)
Lower Rise