ActronAir MWC-B01CS VRF Basic Wired Controller User Manual

ActronAir MWC-B01CS VRF Basic Wired Controller

Specifications

• Model: VRF BASIC WIRED CONTROLLER
• Rated voltage: Standard voltage as per installation
• Wiring size: Standard wiring size
• Operating environment: Suitable for indoor use
• Humidity: Suitable for typical indoor humidity levels

Product Usage Instructions

4. INSTALLATION

4.1 Installation PrecautionsTo ensure correct installation, follow these precautions:

• Read the Installation section of the manual thoroughly.
• Do not attempt to install the unit yourself; entrust a qualified technician for installation.
• Avoid knocking, throwing, or disassembling the wired controller randomly.
• Ensure the wiring is compatible with the wired controller’s current requirements.
• Use specified cables and avoid placing heavy objects on the wiring terminals.
• Remember that the wired controller line is a low-voltage circuit and should not come into direct contact with high voltage.

5. OPERATION INSTRUCTIONS

5.1 Control Panel ExplanationDetailed explanation of the control panel functions will be provided here.

5.2 Display ExplanationExplanation of the display indicators and their meanings.

5.3 Operation InstructionsStep-by-step guide on operating the wired controller for various functions.

5.4 Mode Conflict PromptInformation on how to resolve mode conflict prompts if encountered.

5.5 Project CommissioningGuidelines for project commissioning and setup.

FAQs

Q: Can I install the unit by myself?

A: No, it is recommended to entrust a qualified technician for installation to ensure proper setup and safety.
Q: What should I do if I encounter a mode conflict prompt?
A: Follow the instructions in the manual to resolve mode conflict prompts and ensure smooth operation.
Q: Is it safe for children to interact with the product?
A: Children should be supervised to prevent any misuse of the product for their safety.

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VRF BASIC WIRED CONTROLLER
Operation Manual
Model Numbers
MWC-B01CS IMPORTANT NOTE: Please read this manual carefully before installing or operating your air conditioning unit.

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.
CONTENTS

GENERAL SAFETY PRECAUTIONS

1.1 About the documentation
The original documentation is written in English. All other languages are translations. The precautions described in this document cover very important topics, follow them carefully. All activities described in the installation manual must be performed by an authorized installer.
1.1.1 Meaning of warnings and symbols
CAUTION
Indicates a situation that could result in minor or moderate injury.
NOTE
Indicates a situation that could result in equipment or property damage.
i INFORMATION
Indicates useful tips or additional information.
01

1.2 For the user If you are not sure how to operate the unit, contact your installer. The 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 responsible for their safety. Children must be supervised to ensure that they do not play with the product.
CAUTION
Do NOT rinse the unit. This may cause electric shocks or fire.
NOTE
Do NOT place any objects or equipment on top of the unit. Do NOT sit, climb or stand on the unit.
02

Units are marked with the following symbol:
This means that electrical and electronic products may not be mixed with unsorted household waste. Do not try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, of oil and of other parts must be done by an authorized installer and must comply with applicable legislation. Units must be treated at a specialized treatment facility for reuse, recycling and recovery. By ensuring this product is disposed of correctly, you will help to prevent potential negative consequences for the environment and human health. For more information, contact your installer or local authority.
03

BASIC PARAMETERS

Items Rated voltage Wiring size Operating environment Humidity
3 ACCESSORIES LIST

Description DC18V 3771NN -5°C ~ 43°C RH90%

No.

Name

1 Wired controller

2 Philips head screw, M4×25

3

Installation and Operation Manual

4

Plastic support bar

5

Bottom cap of the wired controller

6 Round head screw ST4X20

7

Plastic expansion pipe

Quantity 1 2 1 2 1 3 3

04

INSTALLATION

4.1 Installation Precautions To ensure correct installation, read the “Installation” section
of this manual. The content provided here covers warnings, which contain
important information about safety that must be followed.
CAUTION
Entrust a local distributor or local service agent to appoint a qualified technician to perform the installation. Do not try to install the unit by yourself. Do not knock, throw, or randomly disassemble the wired controller. The wiring must be compatible with the wired controller current. Use the specified cables, and do not place any heavy object on the wiring terminals. The wired controller line is a low-voltage circuit, which cannot come into direct contact with the high voltage l
05

ine or be laid in the same wiring tube together with the high voltage line. The minimum spacing of wiring tubes is 300 to 500 mm. Do not install the wired controller in corrosive, flammable and explosive environments or places with oil mist (such as a kitchen). Do not install the wired controller in a wet place and avoid direct sunlight. Do not install the wired controller when it is powered on. Please install the wired controller after painting the wall; otherwise, water, lime and sand may enter the wired controller.
06

4.2 Installation Method

4.2.1 Wiring requirements

One-to-more and two-to-more

IDU 1#

IDU 2#

X1 X2

D1 D2

D1 D2

CN6

CN2 CN2

L3

··· IDU 3-15#

IDU 16# D1 D2
CN2

Ln

L1

L2

X1 X2
Wired controller

X1 X2
Wired controller

Please use the shielded wire, and the shield layer must be grounded.
Please use shielded wires, and the shield layer cannot be grounded. The IDU can realize the one-to-more and
two-to-more functions. (main-secondary wired controller needs to be setRefer to “Parameter settings C00”)

The one-to-more function must be set for the wired
controller.(Refer to “Parameter settings N37” ) After the communication between the wired controller and IDU lasts 3 minutes and 30 seconds, the control can be implemented

07

One-to-one
Applicable to bi-directional communication between wired controller and IDU.
One-to-one: One wired controller controls one IDU. The parameters displayed on the wired controller are updated in real time according to changes in the parameters of the IDU.
The permissible longest wiring length of the system is 200 m. Communication cables between the IDU and the wired
controller (X1, X2) may be connected in reverse order.

P/Q/ E

P/Q/ E

P/Q/ E

P/Q/ E

X1/X2

X1/X2

X1/X2

One-to-one

One-to-one
08

One-to-one

Two-to-one

Applicable to bi-directional communication between wired controller and IDU. Two-to-one: Two wired controller controls one IDU. The
parameters displayed on the wired controller are updated in
real time according to changes in the parameters of the IDU.

Two-to-one:wired controller must be set as main or secondary

Refer to “Parameter settings C00”

The permissible longest wiring length of the system is 200 m.

P/Q/E

P/Q/E

P/Q/E

P/Q/E

X1/X2 X1/X2 X1/X2

Two-to-one

One-to-one

X1/X2 Not allowed
X1/X2
Two-to-one

09

4.2.2 Installlation of bottom cap of the wired controller

Screw hole installed on Electrician box, use two Philips head screw, M4×25

Screw hole installed on the wall Use three round head screw 4X20 and plastic expansion pipe

When installed on Electrician box:

Adjust the lengths of the two plastic support bars in the

accessory package. Ensure that the bottom cap of the wired

controller stays level with the wall when installed on the screw

post of electrical box.

Use a cutting tool to

Screw post of

adjust the lengths of the

the electrical

two plastic support bars

box

10

NOTE
When installed on the wall: The wire can be placed outlet or inside. Wire outlet have four side to select.
Cutting place of up,down
left and right side wire outlet
Up downleft and right side wire outlet 4.2.3 Lead the 2-core shielded cable through the wiring hole in the bottom cap of the wired controller, and use screws to reliably fasten the shielded cable onto terminals X1 and X2. Then fix the bottom cap of the wired controller onto the electrical box by using pan head screws.
11

NOTE
Do not perform wiring operations on energized parts. Make sure that you remove the wired controller before proceeding. Otherwise, the wired controller may be damaged. Do not overtighten the pan head screws; otherwise, the bottom cap of the wired controller may deform and cannot be levelled on the wall surface, which makes it difficult to install or not securely installed.
12

NOTE
Avoid the water enter into the wired remote controller, use trap and putty to seal the connectors of wires during wiring installation.

Electrician box

wire inside

wire outlet

4.2.4 Buckle the wired controller and the rear cover as shown in the following figure.

13

When they are correctly buckled
NOTE
Make sure that no cables are clamped when buckling the wired controller and bottom cap. The wired controller and bottom cap should be installed correctly. Otherwise, they may get loose and fall apart.
14

OPERATION INSTRUCTIONS

5.1 Control Panel Explanation

Fan speed/sleep

On/Off

Operating mode
Remote signal receiving area

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Operating indicator
Timer
Fan direction

Mode Fan speed Adjustment Timer Fan direction button
15

5.2 Display Explanation

NO. Icon

Name

Description

It will be flashed when IDU energy efficiency

attenuated.When “Parameter settings C17” is seted “yes”,the screen displays IDU Energy

1

Energy Efficiency Efficiency Attenuation percentage when the

Attenuation

wired controller is in off mode,.Efficiency Attenuation percentage and filter blockage

percentage will be displayed alternately in off

mode when “Parameter settings C17 and C18” are seted “yes”.

2

Sleep Mode

Displayed when the unit is in sleep mode

3

ETA Function

It will be displayed when the ETA Function is activated.

4

Key Lock

Refer to page 24

5

Defrosting Mode Refer to page 24

6

Lock Mode

It will be displayed when the mode of controller is locked.

7

Backup Mode It will be flashed when IDU in backup state.

8

Filter Blockage Refer to page 25

9

.

Main/secondary

It will be displayed when the controller is set as the main controller

16

5.3 Operation Instructions

On/Off

Press ” ” to turn on or off the IDU.

i INFORMATION
The screen and operating indicator get dimmed when the unit is powered off. “$0” The icon is displayed when the IDU is off.

Mode Selection

Each time ” ” is pressed, the operating mode changes according to the order shown below
(Auto mode is specific to some models):

Auto

Cool

Dry Fan

Heat

Set Except for fan mode, press ” ” or ” ” to temperature adjust the indoor set temperature. Holding the
button can rapidly increase or decrease the temperature value.
17

5.3.1 Auto mode temperature setting In Auto mode, press ” ” and ” “. The “Cool” and “Heat” icons blink. Press ” ” to select the set temperature for cooling or heating. The digital display in the temperature display area blinks. Press ” ” and ” ” to adjust the temperature, and press ” ” to confirm the temperature, or the temperature is automatically confirmed 3 seconds later, and this screen is exited. In Auto mode, the wired controller displays Auto/Cool or Auto/Heat. When the IDU is operating for cooling in Auto mode, the “Auto” and “Cool” icons light up; when the IDU is operating for heating in Auto mode, the “Auto” and “Heat” icons light up.
18

5.3.2 Self clean function

self clean function.

Press and hold ” function.

” for 2s to start self clean

The self-cleaning process takes approximately 50 minutes and falls into four steps:

Preprocessing

Freezing

Melting and cleaning

Drying

Hold for 2s

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After self clean function is completed, the IDU powers itself off.

19

i INFORMATION
To exit self clean function during operation, press ” “.
Some models do not have self clean function. For details, please refer to the manual of IDU.
When self clean function is enabled, all indoor units (sharing the same outdoor unit) start the process of self clean function.
During the process of self clean function, the IDU may blow out cool air or hot air.

5.3.3 Fan speed and fan direction setting

Adjust fan speed

Press ” ” to adjust fan speed, ranging from Auto, 7 speeds and sleep mode.

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20

i INFORMATION

After sleep mode has been running for 8 hours, the
” ” icon is dimmed and the unit will exit the mode automatically.

Press the fan speed button to exit sleep mode.

In Auto mode and Dry mode, fan speed is automatic by default, and the fan speed is unadjustable.

Depending on IDU models, 3-speed or 7-speed can be set.

While ensuring efficiency, the IDU may adjust fan speeds depending on the indoor temperature. Therefore, it is normal if the real-time fan speed differs from the set fan speed or the fan stops.

After the fan speed is set, it takes time for the IDU to respond. It is normal if the IDU does not respond to the setting immediately.

Set swing

By pressing ” ” each, the fan direction is switched in the following sequence:

21

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Position 1 Position 2 Position 3 Position 4 Position 5

i INFORMATION
It applies to IDUs containing electric air outlet panels. When the unit is turned off, the wired controller automatically shuts louvers of the air outlet panels.

For units that feature up/down and left/right swing, follow the steps below to change swing angle.

By pressing ” “, ”

” lights up, and the angle of swing

up and down 2 Hz flashes. Press ” “and ” ” to change

the angle, and code is sent after 0.5s. By pressing ” “,

” ” lights up, and the angle of swing left and right 2 Hz

flashes. Press ” ” and ” ” to change the angle, and code

is sent after 0.5s. Then press ” ” to exit swing angle setting.

The interface displays the set up and down angle. At this time

” ” is lighted and ”

” is dimmed.

up/down swing:

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Position 1 Position 2 Position 3 Position 4 Position 5

22

left/right swing:

Position 1

Position 2

Position 3 Position 4 Position 5

5.3.4 Timer setting
Timer On setting:
Timer On
hours later On Press and hold to cancel
Timer Off setting:
Timer Off
hours later Off Press and hold to cancel
Cancelling timer function: Press and hold ” ” or change the time to “0.0”

Timer On
hours later On Press and hold to cancel

By pressing ” ” or if no operation is performed for 5s, the timer is confirmed.

Timer Off
hours later Off Press and hold to cancel

By pressing ” ” or if no operation is performed for 5s, the timer is confirmed.

Cancel timer

23

i INFORMATION
Timer Off can be set when the IDU is on and Timer On can be set when the IDU is off.
5.3.5 Auxiliary heater on/off This function works in heating mode. Auto auxiliary heater on: In heating mode, the auxiliary heater will be enabled automatically depending on the ambient temperature and at this time the IDU operates in Auto Auxiliary Heater On mode. Auxiliary heater on:
AU-heat
Holding both for 3 seconds
Auxiliary heater off: AU-heat
Holding both for 3 seconds
24

i INFORMATION
The auxiliary heater is an additional heating component to the IDU unit, but it increases power consumption after it starts working.

5.3.6 Key lock setting Enable key lock

Holding both for 1 second
Disable key lock:

Enable key lock

The wired controller doesn’t respond when buttons are pressed and ” ” flashes.

Holding both for 1 second

Disable key lock

5.3.6 Defrosting Reminder
When frost builds up on the surface of the outdoor unit, the heating effect will be compromised. In this case, the unit starts defrosting automatically.

25

5.3.7 Clean Filer Reminder
When the operating time reaches the preset time, the Filter icon ” ” flash to remind users to clean the filter. Press and hold ” “button for 3 seconds to remove the
Filter icon ” ” Go to “Parameter settings C03” to turn on/off this function
or preset time of this function. The secondary wired controller has no clean filer reminder
function. IDU filter blockage display After open the IDU filter blockage display function from “Parameter settings C18”, when the wired controller is in off mode, the screen displays IDU filter blockage percentage.
NOTE
If constant air flow is selected for IDU, the filter resistance will be set via the wired controller. The smaller you set this value, the more frequently you need to clean your filter. But this is more energy efficient and healthier. If you set this value too large, you can have the unit work for longer time without performing any maintenance. But it will consume more power and become dusty.
26

5.3.8 Sterilize mode

It only works with an IDU containing a sterilization module.

Enabling sterilization mode:

Holding both for 3 seconds

Sterilize

Disabling sterilization mode:

Holding both for 3 seconds

Sterilize

Sterilization mode only applicable to some indoor unit types, please check owner’s manual of the installed indoor unit for applicable features.

27

i INFORMATION
On the Project Commissioning page, you can enable or disable sterilization feature. Parameter N42 on the engineering setting page allows you to set the sterilization module. It works only with the IDU provided with sterilization feature. The sterilization module stops when the swing function is enabled, and does not resume operation until the swing function is disabled.
28

5.3.9 Humidity setting

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In dry mode, press ” ” and ” ” to change humidity in the range of 35-75%.
i INFORMATION
This function only works when used with a humidity sensor.
The humidity is 65% by default when the wired controller is powered on for the first time.
Each time you press ” ” and ” “, the value changes by 1%. Hold the button to speed up your operation.
29

5.3.10 Indoor temperature display

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This function can be set via the wired controller by setting the parameter C05 “whether indoor ambient temperature is displayed”.
Press any button on the screen to return to the previous page.

5.3.11 Functions of the main/secondary wired controller
When two wired controllers control one indoor unit at the same time (2-to-1 system), one controller will be the Main, and the other will be the Secondary.
The main wired controller rather than the secondary wired controller allows you to set the timer and IDU parameters.

30

5.4 Mode Conflict Reminder

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When the indoor unit detects a mode conflict, the icon ” No permission ” flashes with the current mode display.

5.5 Project Commissioning
5.5.1 Restore factory settings
Holding ” “, ” ” and ” ” at the same time for 5 seconds can restart and reset the Parameter settings of wired controller.

31

5.5.2 Automatically identifying models
The wired controller can automatically identify the model of the IDU, based on which, the wired controller automatically updates the information, such as the spot check condition and error code of the IDU.
5.5.3 IDU address query If the indoor unit has no address, the wired controller will
display U38 error.
Press and hold ” ” and ” ” at the same time for 5s to enter IDU address query interface. Press ” ” to exit the interface.
Once you are on the address query page, the wired controller displays the current address if the indoor unit has an address.
Addresses can be set to allow control of one IDU by one controller or two controllers (can be set with the main wired controller, not any secondary wired controller). Press and hold ” ” and ” ” for 5s to enter IDU address query and setting interface. Then press ” ” and the number area begins flashing. Press ” ” and ” ” to change address and press ” ” to confirm your changes. The wired controller will automatically exit the address setting page if no operation is performed for 60s, or you can press ” ” to exit the address setting page.
32

INFORMATION

In the address query and setting state, the wired controller does not respond to or forward any remote control signal.
5.5.4 Parameter settings of the wired controller
Parameters can be set in the power-on or power-off state. Hold ” ” and ” ” for 3 seconds to enter the parameter
setting interface. After entering the parameter setting interface, the ODU
displays u00, the IDU displays n00-n63, and the wired controller displays CC. Press ” ” and ” ” to switch the parameter code. Set parameters according to the Table of Parameter Settings. Press “Swing” to enter the parameter setting interface. Then press ” ” and ” ” to change parameter value and press ” ” to save changes. Press the ” ” button to return to the previous page until exiting the parameter setting or exiting the parameter setting after 60s without any operation. When it is in the parameter settings page, the wired controller does not respond to any remote control signal.
33

When it is in the parameter settings page, the mode, fan speed, and switch buttons are invalid.
Parameter C14 allows you to return to the home screen after pressing ” “.

Parameter Parameter Name Parameter

Code

Range

Default Value

Remarks

C00

Main and

0 indicates the main 0

secondary wired wired controller and

controller setting 1 indicates a

secondary wired

controller

If two wired controllers control one IDU, addresses for two wired controllers must be different. You are not allowed to set IDU parameters via the secondary wired controller (address 1), but can set the wired controller.

C01

Cooling only/cooling 00: Cooling and 00

and heating setting Heating

01: Cooling Only

C02

Power failure memory 00: None

00

function setting for 01: Available

the wired controller

Heating mode is not available in cooling only setting
For a two-way wired controller, this parameter is used to store the status of Follow Me.

C03

Time to remind

00/01/02/03/04 01

users to clean the

filter on the wired

controller

00: No reminder to clean filter 01: 500h, 02: 1000h 03: 2500h 04: 5000h

C04 Settings for infrared 00: Disable

01

receiver of wired 01: Enable

controller

C05 Whether indoor

00: No

00

ambient temperature 01: Yes

is displayed

When “Disable the infrared receiver of the wired controller” is on, the wired controller cannot receive remote control signal.

C06 LED indicator of 00: Off

01

wired controller 01: On

When it is on, LED indicator shows the on/off state of the indoor unit. When it is off, LED indicator is off.

34

Parameter Parameter Name Parameter

Code

Range

C07 Wired controller -5.0 to 5.0°C Follow Me temperature correction

C08 Lower limit of

16°C to 30°C

cooling temperature

Default Value

Remarks

Celsius: -1.0

Note: Accuracy is 0.5°C.

IDU: 16°C FAPU: 13°C AHUKit: 10°C

C09

Upper limit of

16°C to 30°C

30°C

cooling temperature

C10

Lower limit of

V8: °C: 16°C

V8: 16°C

heating temperature -30°C((default16°C) V6: 17°C

V6: °C: 17°C

FAPU: 13°C

-30°C((default17°C) AHUKit: 10°C

C11

Upper limit of

16°C to 30°C

30°C

heating temperature

C12

Set to display

00/01

01

0.5°C

C13

Wired controller 00/01

01

button light setting

00: No 01: Yes 00: Off 01: On

C14

Send configuration 00/01/02/03/04 01

parameters stored in

the wired controller

to IDU by one click

C15

Buzzer of the wired 00/01

01

controller rings

C16

Backlight time

00/01/02

00

The latest configuration parameters stored in the wired controller will be changed after power on for two hours or after configuration parameters of wired controller are changed. Note: 1: Applicable to one-to-one scenario
2: Only for 2nd generation IDU
00: No 01: Yes
00: 15s 01: 30s 02: 60s

35

Parameter Parameter Name Code

Parameter Range

Default Value

Remarks

C17

Whether energy 00/01

00

efficiency

attenuation is

displayed when

power off

00: No 01: Yes

C18

Whether IDU filter 00/01

00

blockage is displayed

when power off

C19

T1 temperature F0/F1/F2/F3/…#IDU F1

selection

00: No 01: Yes
F0: IDU T1 temperature sensor F1: Follow Me, #IDU (IDUs connected to the system, ranging from 0 to 63) (Note: The secondary wired controller does not respond to Follow Me) F2: Second temperature sensor (reserved) F3: Ground sensor (reserved)

C20

Swing direction 00/01

00

setting

00ForwardcDefault 01Reverse

36

5.5.5 IDU parameter setting (2nd generation IDU)

Parameter Parameter Name Parameter Range Default

Code

Value

Remarks

N00

Static pressure

IDU static pressure 02

The IDU sets the selected corresponding static

setting of IDU

level:

pressure (VRF unit: main board DIP of IDU; other

00/01/02/03/04/05/06/0

models: reserved)

7/08/09/~/19/FF

N01

Power failure

00/01

memory function

setting for the IDU

01

00: None

01: Available

N02

IDU up/down swing 00/01

setting

01

00: None

01: Available

N03

IDU left/right swing 00/01

setting

01

00: None

01: Available

N04

Whether the display 00/01

board of IDU

receives remote

control signals

00

00: Yes

01: No

N05

Buzzer of the IDU 00/01

rings

01

00: No

01: Yes

N06

Light (display panel) 00/01

setting

01

00: Off

01: On

N07

Temperature unit 00/01

00

00: Celsius

01: Fahrenheit

N08

Mode changeover 00/01/02/03

time interval in the

auto mode (min)

N10

Whether the IDU 00/01

has auxiliary heater

N11

Set outdoor

-5 to 20°C

temperature value

when auxiliary

heater is on

00

00: 15min

01: 30min

02: 60min 03: 90min

01

00: None

01: Available

15°C Note: Accuracy is 1°C.

37

Parameter Parameter Name Code

N16

Auxiliary heater

on/off

Parameter Range 00/01/02

Default Value
00

00: Auto 01: Forced on 02: Forced off

Remarks

N17

IDU cold draft

00/01/02/03/FF

prevention

temperature settings

00

Common IDU: 00: 15°C, 01: 20°C, 02: 24°C, 03:

26°C, FF: main board DIP of IDU

FAPU: 00: 14°C, 01: 12°C, 02: 16°C, 03: 18°C, FF:

reserved

N20

Fan speed setting in 0/1/14

heating standby

mode

0

0: Termal

1: Speed 1

14: Fan speed before going to standby mode

N21

Time to stop the fan 00/01/02/03/04/FF

01

of IDU (Termal)

00: Fan on 01: 4min 02: 8 min 03: 12 min 04: 16 min FF: main board DIP of IDU

N22

EXV opening

00/01/02

selection during

heating standby

N23

Cooling return

difference

temperature

00/01/02/03/04

01

00: 56P

01: 72P

02: 0P

FF: main board DIP of IDU

00

00: 1°C

01: 2°C

02: 0.5°C

03: 1.5°C

04: 2.5°C

38

Parameter Parameter Name Code

N25

IDU heating

temperature

compensation

Parameter Range 00/01/02/03/04

N26

IDU cooling

00/01/02/03/04/F

temperature

F

compensation

N28

Upper limit of 4/5/6/7

automatic fan

speed in cooling

mode

N29

Upper limit of 4/5/6/7

automatic fan

speed in heating

mode

Default Value
00

Remarks
VRF unit: 00: 6°C, 01: 2°C, 02: 4°C, 03: 6°C, 04: 0°C, FF: main board DIP of IDU Split unit: 00: 6°C, 01: 2°C, 02: 4°C, 03: 8°C, 04: 0°C, FF: reserved Mini VRF unit: 00: 6°C, 01: 2°C, 02: 4°C, 03: 8°C, 04: 0°C, FF: reserved Note: The wired controller sends only speed level other than values to IDU

00

VRF unit: 00/01/FF, 00: 0°C, 01: 2°C,

FF: main board DIP of IDU

Split unit: 00/01/02/03/FF, 00: °C, 01:

1°C, 02: 2°C, 03: 3°C, FF: reserved

Mini VRF unit: 00/01/02/03/04/FF, 00:

°C, 01: 1°C, 02: 2°C, 03: 3°C, 04: -1°C,

FF: reserved

Note: The wired controller sends only

speed level other than values to IDU

5

4: Speed 4

5: Speed 5

6: Speed 6

7: Speed 7

6

4: Speed 4

5: Speed 5

6: Speed 6

7: Speed 7

N30

Constant air flow 00/01

selection

N42

Sterilization

00/01

function setting

N43

Sterilization

setting

01/02

01

00: Constant speed

01: Constant air flow

00

00: No sterilization function (default)

01: Plasma disinfection

02

01: on

02: off

39

Parameter Parameter Name Parameter Range Code
N44 Silent mode setting 00/01

Default Value
00

00: Off 01: On

N45 ECO
N46 Drying time at self-cleaning

00/01 0/1/2/3

01

00: Off

01: On

0

0: 10 min

1: 20 min

2: 30 min

3: 40 min

Remarks

N57 On-site fanspeed 00/01 adjustment factor

N58 Initial static pressure 00/01 detection

N61 Fresh air dry contact 1 00/01

N62 Fresh air dry contact 2 00/01

N63

Fresh air dry contact 3 00/01

00

00: 1

01: 1.1

00

00: Not reset

01: Reset

00

2nd generation Function 00Disconnect01Start

00

2nd generation Function 00Disconnect01Start

00

2nd generation Function 00Disconnect01Start

5.5.6 IDU parameter setting (IDU)

Parameter Parameter Name Parameter Range Default

Code

Value

Remarks

N00

Static pressure of IDU static pressure 02

The IDU sets the selected corresponding static

IDU

level: 00/01/02/03/

pressure (VRF unit: main board DIP of IDU; other

04/05/06/07/08/09/~/19

models: reserved)

N01

Power failure

00/01

memory function

setting for the IDU

01

00: None

01: Available

40

Parameter Parameter Name Parameter Range Code

N02

IDU up/down swing 00/01/02/03/04

setting

Default Value
01

Remarks
00: None 01: Available 02/03: Reserved 04: Q4/Qmin four air vents Note: The IDU can automatically identify up/down swing, so this function is invalid

N03

IDU left/right swing 00/01

setting

N04

Whether the display 00/01

board of IDU

receives remote

control signals

01

00: None

01: Available

Note: The IDU can automatically identify up/down

swing, so this function is invalid

00

00: Yes

01: No

N05

Buzzer of the IDU 00/01/02

rings

N06

Light (display panel) 00/01

setting

02

00: No

01: Yes

02: remote controller only

01

00: Off

01: On

N07

Temperature unit 00/01

00

00: Celsius

01: Fahrenheit

N08

Mode changeover 00/01/02/03

time interval in the

auto mode (min)

N11

Set outdoor

-25~20°C

temperature value

when auxiliary

heater is on

N12

Indoor temperature 10°C to 30°C

when auxiliary

heater is on

00

00: 15min

01: 30min

02: 60min

03: 90min

0°C Note: The values are accurate to 1°C or 1°F. °F: (-13)~68°F

24°C (Accuracy is 1°C)

41

Parameter Code Parameter Name Parameter Range

N13

T1 temperature

0-7

difference when

auxiliary heater is on

N14

T1 temperature

0-10

difference when

auxiliary heater is off

N15

Auxiliary heater used 00/01

alone

N16

Auxiliary heater 00/01/02

on/off

N17

IDU cold draft

00/01/02/03/04

prevention

temperature settings

N18

Fan speed setting in 00/01/02/03/04/05/06/

cooling standby 07/14

mode

N19

Standby fan speed 00/01/02/03

L1 range in dry

mode

Default Value

Remarks

4

0-7 indicates 0 – 7°C

(Accuracy is 1°C)

6

0-10 indicates -4 – 6°C

(Accuracy is 1°C)

00

00: No

01: Yes

00

00: Auto

01: Forced on

02: Forced off

00

Common IDU:

00: 15, 01: 20, 02: 24, 03: 26, 04: anti-cold wind

invalid

FAPU: 00: 14, 01: 12, 02: 16, 03: 18, 04: anti-cold

wind invalid

Fan coil unit: 00: 32°C, 01: 34°C, 02: 36°C, 03:

38°C, 04: anti-cold wind invalid, water inlet

temperature.

01

00: Start/Stop delay

01: Speed 1

02: Speed 2

03: Speed 3

04: Speed 4

05: Speed 5

06: Speed 6

07: Speed 7

14: Fan speed before going to standby mode

01

00: Fan off

01: L1

02: L2

03: Speed 1

42

Parameter Parameter Name Parameter Range Code

N20

Fan speed setting in 0/1/14

heating standby

mode

Default Value

Remarks

0

0: Termal

1: Speed 1

14: Fixed at Speed 1

N21

Time to stop the fan 00/01/02/03/04

of IDU (Termal)

N22

EXV opening

00/01/02/14

selection during

heating standby

01

00Fan shutdown

014min

028min

0312min

0416min

14

00: 224P

01: 288P

02: 0P

14: Auto regulation

N23

Cooling return

difference

temperature

00/01/02/03/04

00

00: 1°C

01: 2°C

02: 0.5°C

03: 1.5°C

04: 2.5°C

N24

Heating return

difference

temperature

00/01/02/03/04

00

00: 1°C

01: 2°C

02: 0.5°C

03: 1.5°C

04: 2.5°C

N25

IDU heating

temperature

compensation

00/01/02/03/04

00

00: 6°C

01: 2°C

02: 4°C

03: 8°C

04: 0°C

43

Parameter Parameter Name Parameter Range Code

N26

IDU cooling

temperature

compensation

00/01/02/03/04

N27

Maximum indoor 00/01/02/03/04

temperature drop D3

in dry mode

Default Value 00
01

00: 0°C 01: 1°C 02: 2°C 03: 3°C 04: -1°C
00: 3°C 01: 4°C 02: 5°C 03: 6°C 04: 7°C

N28

Upper limit of

4/5/6/7

automatic fan speed

in cooling mode

5

4: Speed 4

5: Speed 5

6: Speed 6

7: Speed 7

N29

Upper limit of

4/5/6/7

automatic fan speed

in heating mode

5

4: Speed 4

5: Speed 5

6: Speed 6

7: Speed 7

Remarks

N30

Constant air flow 00/01

setting

N31

High ceiling setting 00/01/02

01

00: Constant speed

01: Constant air flow

00

Set IDU height,

00: 3m

01: 4m

02: 4.5m

N32

Q4/Q4min air

00/01

outlet 1 setting

N33

Q4/Q4min air

00/01

outlet 2 setting

N34

Q4/Q4min air

00/01

outlet 3 setting

00

00 – Free control

01 – Off

00

00 – Free control

01 – Off

00

00 – Free control

01 – Off

44

Parameter Parameter Name Parameter Range Default

Code

Value

Remarks

N35

Q4/Q4min air outlet 00/01

4 setting

00

00 – Free control

01 – Off

N36

Cooling only for IDU 00/01

00

00: Cooling and heating

01: Cooling only

N37

One-to-more of wired 00/01

controller enabled

00

00: No

01: Yes

N38

Long-distance on/off 00/01

function setting

00

00: Turn off the IDU when closed

01: Turn off the IDU when open

Note: When turn off the IDU by long-distance

on/off port, the wired controller for IDU will display

d6

N39

Delay time setting 00/01/…/06

(Using long-distance

on/off port to turn off

the IDU)

00

00 – No delay

01 – 1min delay

02 – 2min

03 – 3min

04 – 4min

05 – 5min

06 – 10min

N40

Long-distance alarm 00/01

function setting

00

00: Alarm when closed

01: Alarm when open

N41

Faster cooling mode 00/01

setting

N42

Sterilization function 00/01

N43

Sterilization setting 00/01/02

N44

Silent mode setting 00/01

00

00: Off

01: On

00

00: No sterilization function (default)

01: Plasma disinfection

00

00: Auto on

01: Forced on

02: Forced off

00

00: Off

01: On

N45

ECO

00/01

00

00: Off

01: On

45

Parameter Parameter Name Parameter Range Default

Code

Value

N46

Drying time at

0/1/2/3

0

self-cleaning

0: 10 min 1: 20 min 2: 30 min 3: 40 min

Remarks

N47

Mildew-proof fan 00/01/02/03

operation duration

(power off in

cooling/dry mode,

except power off

due to faults)

N48

Dirt proof for ceiling 00/01

00

00 – Invalid (default)

01 – 60s

02 – 90s

03 – 120s

00

00: Invalid

01: Valid

N49

Condensation proof 00/01

00

00: Invalid

01: Valid

N50

Human Detect

00/01/02

Sensor

00

00: Invalid

01: Used to adjust the set temperature when

unattended

02: Used to turn off the unit when unattended

N51

Setting temperature 00/01/02/03/04/05

00

00: 15 min

adjustment interval

01: 30 min

when unattended

02: 45 min

03: 60 min

04: 90 min

05: 120 min

N52

Setting maximum 00/01/02/03

temperature

adjustment when

unattended

00

00: 1°C

01: 2°C

02: 3°C

03: 4°C

46

Parameter Parameter Name Code

N53

Stop delay when

unattended

Parameter Range 00/01/02/03/04/05

Default Value
01

00: 15 min 01: 30 min 02: 45 min 03: 60 min 04: 90 min 05: 120 min

N54

ETA function setting 00/01

00

00: Off

01: On

N55

Energy rating of 00/01/02

cooling ETA

00

00: Level 1

01: Level 2

02: Level 3

Remarks

N56

Energy rating of

00/01/02

heating ETA

00

00: Level 1

01: Level 2

02: Level 3

N57

On-site fanspeed 00/01/02/03/04/05/06 00

00: 1

adjustment factor

01: 1.1

02: 1.05

03: 1.15

04: 0.95

05: 0.9

06: 0.85

N58

Initial static pressure 00/01

detection

N59

Filter ending – initial 00/01/…/19

static pressure

setting

00

00: Not reset

01: Reset

00

00-10Pa/01-20Pa/02-30Pa ~19-200Pa

N60

Ambient temperature 00/01/02

when preheating is

turned on

02

00: 5°C

01: 0°C

02: (-5)°C

N61

Fresh air dry contact 1 00/01

00

2nd generation Function 00: Disconnect; 01: Start

47

Parameter Parameter Name Parameter Range Default

Code

Value

Remarks

N62

Fresh air dry contact 2 00/01

00 2nd generation Function 00: Disconnect; 01: Start

N63

Fresh air dry contact 3 00/01

00 2nd generation Function 00: Disconnect; 01: Start

N64

Electric heater

00/01

option in heating

mode with valves

open/closed

00 0: Heating mode with valves open 01: Heating mode with valves closed, only applicable to FCUs

N65

Setpoint of anti hot 00/01/02/03/04

air temperature for

IDU in cooling mode

[anti hot air

temperature of FCU

of the old platform]

N66

Auto Dry Function 00/01

00 FCU: 00: 0°C 01: -2°C 02: -4°C 03: -6°C 04: Invalid hot air prevention, inlet water temperature – indoor ambient temperature
00 00: Invalid (default) 01: Valid Note: Only applicable to operations in Cool or Auto mode

N67

Auto Dry Target

40%/41%/42%/……/7 65%

relative humidity 0%

N68

Refrigerant leakage 00/01

fault reset

00 00: Not reset; 01: reset

48

5.5.7 Parameter Settings for ODU

Parameter Code

Parameter Name

Parameter Range

Default Value

Remarks

U0 Energy rating of ODU 40-100%, every 1% 100%

U1 Silence level of ODU 00/01/…/14

00 Level 0-14

U2 VIP indoor unit address 0~63

0xFF

When more than one unit is controlled by one wired controller, the controller can only set the IDU physically connected to it to be the VIP IDU.

U3 Heating and air supply 00/01 enabled at the same time

00 00: Off 01: On

i INFORMATION
The parameter settings of the main and secondary wired controllers are mutually independent, and do not affect each other. Parameters of IDU and ODU cannot be set via the secondary wired controller.

5.5.8 Query Operations of Wired Controller

Parameters

“VUP ‘BO /PQFSNJTTJPO
“VUP 4FU5FNQ

)PME SFDIFDL . “6IFBU

)VNJEJUZ

0”0/

$PPM

%SZ
‘BO
)FBU
4FMG $MFBO
)PME TFMGDMFBO

4:4%JBH

-BUFS0”0/ )PME $BODFM
4UFSJMJ[F
$PNGPSBJS “VUP4XJOH

“$0”

BEKVTU

49

Check No.

On the home screen, press and hold ” ” and ” ” at the same time for two seconds to enter the query interface, and u00-u03 indicates ODUs, n00-n63 indicates IDUs, and CC indicates the wired controller. Press ” ” and ” ” to switch the parameter code. Press “Swing” to enter the parameter query page.
Press ” ” to exit the query page. The parameter query page automatically closes if no button is pressed within the next 60 seconds
Press ” ” or ” ” to query the parameters, and the parameters can be queried cyclically.
On the top of the query page, the “Timing area” displays the check list serial number, and the “Temperature area” displays the check list parameters.
Check list query information is listed as follows: Information may vary depending on unit model. Check list of parameters applies to VRF units and mini VRF units.
50

Check list content:

1. Query of wired controller address

Parameter Code

Parameter Name

1

Query of active IDU addresses for wired controller (one-to-more)

2

Historical record query of IDU addresses for wired controller (one-to-more)

3

Wired controller program version No.

Remarks
Each address is displayed for 1.5s. Addresses are alternatively displayed. To clear historical addresses, restore the wired controller to factory settings.

51

3. IDU check list

No.

Displayed Content

No.

Displayed Content

1 IDU address

10 Actual set humidity RHs

2 Capacity HP of IDU

11 Actual RH indoor humidity

3 Actual set temperature Ts

12 Actual fresh air processing unit TA air supply temperature

Set temperature of the unit that is operating 13 Air-blow pipe temperature

4 currently, Ts (Remarks: The temperature 14 Compressor discharge temperature

displayed is the actual set temperature Ts) 15 Target superheat

5 Actual T1 indoor temperature

16 EXV opening (actual opening/8)

6 Modified indoor temperature T1_modify

17 Software version No.

7 T2 heat exchanger intermediate temperature 18 Historical error code (recent)

8 T2A heat exchanger liquid pipe temperature 19 Historical error code (sub- recent)

9 T2B heat exchanger gas pipe temperature 20 [] is displayed

4. ODU check list

Display 1

VRF unit ODU address

Description 0 to 3

2

ODU capacity

3

ODU Qty

4

IDU Qty settings

5

ODU capacity

demand

6

Actual frequency

of compressor 1

7

Actual frequency

of compressor 2

Unit: HP 1 to 4
Only displayed on the master unit, while the slave unit displays 0. Actual Frequency
Actual Frequency

52

Display

VRF unit

8

Operating

mode

9

—

10

Fan speed 1

11

Fan speed 2

12

T2 average

13

T2B average

14

T3

15

T4

16

T5

17

T6A

18

T6B

19

T7C1

20

T7C2

21

T71

22

T72

53

Description
0: Off 2: Cool 3: Heat 5: Hybrid cooling 6: Hybrid heating
Fan speed
Fan speed Actual temperature Actual temperature
Actual temperature
Actual temperature Actual temperature Actual temperature Actual temperature
Actual temperature
Actual temperature
Actual temperature Actual temperature

Display 23 24 25 26 27 28 29 30 31 32
33
34 35 36 37 38

VRF unit T8 Ntc
T9 TL Discharge superheat degree Primary current Compressor 1 current Compressor 2 current EXVA opening
EXVB opening
EXVC opening EXVD opening High pressure Low pressure Online IDU Qty
54

Description Actual temperature Actual temperature
Actual temperature Actual temperature
Actual temperature
Actual current
V6 VRF unit: opening = displayed value × 4 V6 mini VRF unit: opening = displayed value × 8 Inverter split: opening = displayed value × 8 VRF unit: opening = displayed value × 24 Opening = Displayed value × 4 Pressure = Displayed value / 100 Pressure = Displayed value / 100 /

Display 39 40 41
42
43

VRF unit Running IDU Qty
/ Heat exchanger status
System startup status
Silent settings

Description Actual Qty
0: Heat exchanger off 1: C1 2: D1 3: D2 4: E1 5F1 6: F2 [0] No special mode [1] Oil return [2] Defrosting [3]Start [4] Stop [5] Quick inspection [6] Self- cleaning 0 to 15 correspond to the noise level

55

Display 44

VRF unit
Static pressure settings

45

TES

46

TCS

47

DC voltage

48

AC voltage

49

ODU blockage

50

Software version

51

Last malfunction

Description
0: 0Pa 1: 20Pa 2: 40Pa 3: 60Pa 4: 80Pa 5: 100Pa 6: 120Pa Actual temperature Displayed value -25 Actual voltage = Displayed value × 10
Actual voltage = Displayed value × 2 0 to 10

56

5.5.9 Error display

Error code

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“VUP 4FU5FNQ

)PME SFDIFDL . “6IFBU

)VNJEJUZ

0”0/

$PPM

%SZ

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)FBU 4FMG $MFBO

)PME

TFMGDMFBO

4:4%JBH

-BUFS0”0/ )PME $BODFM
4UFSJMJ[F
$PNGPSBJS “VUP4XJOH

“$0”

BEKVTU

IDU and ODU address

When a communication fault occurs between the wired controller and any of the IDUs, the wired controller reports
“C51”. If an IDU has no address, the wired controller of ECOFLEX system displays “U38”.

In case an IDU fails, the address of the IDU is displayed in the timer area and the fault code displayed in the temperature area. In case an ODU fails, the address of the ODU is displayed in the timer area and the fault code displayed in the temperature area.

Notify the distributor of the error code. Do not disassemble, modify or repair the IDU without authorization.

57

Code and Error Explanation about wire controller.

Code

Explanation

C51 Communication failure between indoor unit and wire controller

C76 Master slave wire control communication error

E31 Wire controller temperature sensor fault

For Error Code and Error Explanation about IDU and ODU please refer to the instruction manual of IDU and ODU

58

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