Lennox VRF VEWCL1B User manual

Wired Controller
VEWCL1B
Thank you for selecting LENNOX air conditioners. Please read this manual carefully before operation
and keep it for further reference.

To Users
Thank you for selecting LENNO x’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) This instruction manual is a universal manual, some functions
are only applicable to particular product. All the illustrations and
information in the instruction manual are only for reference, and
control interface should be subject to actual operation.
(3) 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.
(4) 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.
(5) The final right to interpret for this instruction manual belongs to
LENNOX.
This marking indicates that this product should not
be disposed with other household wastes throughout the
EU. To prevent possible harm to the environment or human
health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material
resources. To return your used device, please use the
return and collection systems or contact the retailer where the product
was purchased. They can take this product for environmental safe
recycling.

Contents
1 SAFETY NOTICES (PLEASE BE SURE TO ABIDE ) ............... 1
2 OPERATION NOTICES ......................................................... 2
3 DISPLAY ................................................................................ 3
3.1 LCD OF WIRED CONTROLLER ................................................. 3
3.2 LCD DISPLAY INSTRUCTION .................................................... 4
4 BUTTONS .............................................................................. 7
4.1 BUTTON GRAPHICS .................................................................. 7
4.2 FUNCTION INSTRUCTION OF BUTTONS ................................ 7
5 INSTALLATION AND COMMISSIONING ............................... 8
5.1 INSTALLATION OF WIRED CONTROLLER............................. 10
5.2 COMMISSIONING .................................................................... 21
6 OPERATION INSTRUCTIONS ............................................ 31
6.1 ON/OFF ..................................................................................... 31
6.2 MODE SETTING ....................................................................... 32
6.3 TEMPERATURE SETTING ....................................................... 33
6.4 FAN SETTING ........................................................................... 34
6.5 TIMER SETTING ....................................................................... 35
6.6 SWING SETTING ...................................................................... 43
6.7 QUIET SETTING ....................................................................... 44
6.8 SLEEP SETTING ...................................................................... 47
6.9 AIR SETTING* ........................................................................... 47
6.10 LIGHT ON/OFF SETTING ....................................................... 50
6.11 SAVE SETTING ....................................................................... 51

6.12 FILTER CLEAN REMINDER SETTING .................................. 54
6.13 X-FAN SETTING ..................................................................... 58
6.14 ABSENCE SETTING ............................................................... 59
6.15 REMOTE SHIELD FUNCTION ............................................... 59
6.16 CHILD LOCK FUNCTION ....................................................... 60
6.17 GATE-CONTROL FUNCTION ................................................ 60
7 ERROR DISPLAY ................................................................ 60
7.1 TABLE OF ERROR CODES FOR OUTDOOR UNIT ................ 62
7.2 TABLE OF ERROR CODES FOR INDOOR UNIT .................... 64
7.3 TABLE OF DEBUGGING CODES ............................................. 65
7.4 TABLE OF STATUS CODES ..................................................... 67

1
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 .
Wired Controller VEWCL1B

2
2 OPERATION NOTICES
◆ The power supply for all indoor units must be unified.
◆ Prohibit installing the wired controller at wet or sunshine places.
◆ Do not knock, throw or frequently disassemble the wired controller.
◆ Do not operate the wired controller with wet hands.
◆ In one system network, you must set one indoor unit as the master indoor unit,
Other indoor units are slave indoor units .
◆ The operation mode of the system is basing on that of master indoor unit.
Master indoor unit can switch to any modes, while slave unit can’t switch to the
mode that is conflicting with master indoor unit.
◆ When master indoor unit changes mode which cause operation mode of
slave indoor unit conflicts with that of system, the operation mode of slave unit
will switch to the operate mode of system automatically.
◆ When two wired controllers control one (or more) indoor unit(s), the address of
wired controller should be different.
◆ Functions with “*” are optional for indoor units. If a function is not included in an
indoor unit, wired controller can’t set the function, or setting of this function is
invalid to the indoor unit.
Wired Controller VEWCL1B

3
3 DISPLAY
Fig. 3.1 Appearance of wired controller
3.1 LCD OF WIRED CONTROLLER
Fig. 3.2 LCD graphics of wired controller
Wired Controller VEWCL1B

4
3.2 LCD DISPLAY INSTRUCTION
Table 3.1 LCD display instruction
No.
Symbols
Instructions
1
Up and down swing function
2
*
Left and right swing function
3
It's valid under Save mode and displays during setting process.
Temperature lower limit for Cooling: Limit the minimum
temperature value under Cooling or Dry mode.
Temperature upper limit for Heating: Limit the maximum
temperature value under Heating, Space Heating or 3D Heating
mode.
4
*
Auto mode (Under Auto mode, the indoor units will
automatically select their operating mode as per the
temperature
change so as to make the ambient comfortable.)
5
It shows the setting temperature value(In case the wired
controller is controlling a Fresh Air Indoor Unit, then the
temperature zone will display FAP)
6
Cooling mode
7
Dry mode
8
Fan mode
9
Heating mode
Wired Controller VEWCL1B