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    Multi Variable Air Conditioners WALL Mounted Type Indoor Unit 

12 

(3)

  Do not clean the filter by hot water higher than 45°C for preventing fade or deformation. 

Do not burn it on fire or the filter would catches fire or deformation. 

(4)

  Install air filter 

Install the air filter properly along the arrow direction, making the side marked “Front” facing 

yourself and then place the panel back. 

Fig 7.2.1                                                                          Fig 7.2.2 

7.3 Check before the usage season 

(1)

  Check if there is blockage in the inlet or outlet vent of the air conditioner. 

(2)

  Check if the earth wire is earthed reliably.   

(3)

  Check if the batteries in the wireless remote controller have been replaced. 

(4)

  Check if the air filter has been installed properly 

In  order  to  start  up  the  air  conditioner  smoothly  after  it  has  been  turned  off  for  a  long  time 

period, energize the unit 8 hours before turning it on. 

7.4 Check after the usage season 

(1)

  Clean filter and body of air conditioner. 

(2)

  Cut off the main power supply of air conditioner. 

8 Table of Error Codes for Indoor Unit 

Error 

Code 

Content 

Error 

Code 

Content 

Error 

Code 

Content 

L0 

Indoor Unit Error 

L9 

Quantity Of Group Control 

Indoor Units Setting Error 

d8 

Water Temperature Sensor 

Error 

L1 

Indoor Fan Protection 

LA 

Indoor Units Incompatibility 

Error 

d9 

Jumper Cap Error 

L2 

E-heater Protection 

LH 

Low Air Quality Warning 

dA 

Indoor Unit 

Network Address Error 

L3 

Water Full Protection 

LC 

Outdoor-Indoor Incompatibility 

Error 

dH 

Wired Controller Circuit Board 

Error 

L4 

Wired Controller Power 

Supply Error 

d1 

Indoor Unit Circuit Board Error 

dC 

Capacity DIP Switch Setting 

Error 

L5 

Anti-freezing Protection 

d3 

Ambient Temperature Sensor 

Error 

dE 

Indoor Unit CO

2

 Sensor Error 

L7 

No Master Indoor Unit 

Error 

d4 

Inlet Pipe Temperature Sensor 

Error 

C0 

Communication Error 

L8 

Power Insufficiency 

Protection 

d6 

Outlet Pipe Temperature Sensor 

Error 

AJ 

Filter Cleaning Reminding 

db 

Special Code:   

Project Debugging Code 

dL 

Outlet Air Temperature Sensor 

Error 

Summary of Contents for VRF VEHW007C432P

Page 1: ...il GD Large Fan Coil HS AH Air Handler OA Outside Air Evaporator Types Thank you for selecting LENNOX air conditioners Please read this manual carefully before operation and keep it for further refere...

Page 2: ......

Page 3: ...ers should well keep this manual 6 If this unit fails to operate normally please contact our service center as soon as possible and provide the following information 1 Content on the name plate model...

Page 4: ......

Page 5: ...Connect Cables and Terminals of Wiring Board 7 5 2 Power Cord Connection 8 5 3 Connection of Communication Line of IDU and ODU 8 5 4 Connection of Communication Line of Wired Controller 9 5 5 Illumina...

Page 6: ...ipment is used 10 Never start up or shut off the air conditioner by means of directly plug or unplug the power cord 11 Turn off the unit after it runs at least five minutes otherwise it will influence...

Page 7: ...oft cloth with a little neutral detergent to clean the outer casing of unit 26 If anything abnormal happens such as burning smell please power off the unit and cut off the main power supply and then i...

Page 8: ...unctioncaused by the unit that is not installed by the Lennox appointed service center would probably not be dealt with on time because of the inconvenience of the business contact 3 It should be guid...

Page 9: ...communication line for indoor unit and indoor unit outdoor unit Fig 3 2 2 Material Type Total Length L m feet of Communication Cable between Indoor Unit and Indoor Outdoor Unit Wire size mm 2 AWG Mat...

Page 10: ...city appropriately according to the specifications of power cord and air switch provided by manufacturer 4 Install cut off device near the unit The minimum distance between each stage of cut off devic...

Page 11: ...door unit automatically Then you can reset the master indoor unit by remote controller or wired controller 4 3 1 Setting by remote controller Point the remote controller at the light board or wired co...

Page 12: ...out the wiring work incorrect wiring could cause malfunction or even damage the unit 3 The unit should be powered by independent circuit and specific socket 4 The wiring should be in accordance with...

Page 13: ...for tightening the terminal Fig 5 1 1 Fig 5 1 2 5 2 Power Cord Connection NOTICE All indoor units must be unified of power supply so that they can be powered ON OFF at the same time Fig 5 2 For units...

Page 14: ...Controller and Indoor Units Network 1 Communication wire of indoor unit and outdoor unit or indoor unit is connected to D1 D2 2 Wired controller is connected to H1 H2 3 One indoor unit can connect two...

Page 15: ...roperly in proper to prevent electricity wasting It is better tocontrol the difference of the indoor and outdoor temperatures within 5 C 41 F 2 The better effect will be maintained by adjusting the gu...

Page 16: ...ows to take down the panel 2 Clean the panel Clean it with a soft hair brush water and neutral cleaning fluid and then dry it 3 Install the panel As shown in Fig II install the stands of both ends of...

Page 17: ...e season 1 Clean filter and body of air conditioner 2 Cut off the main power supply of air conditioner 8 Table of Error Codes for Indoor Unit Error Code Content Error Code Content Error Code Content L...

Page 18: ...If TIMER had been set on the wireless remote controller The cooling heating effect of the air conditioner was not good Is the temperature set properly Is the inlet outlet vent of the outdoor unit bloc...

Page 19: ...te controller can make the guide louver swing up and down or makes the guide louver stop at a certain angle to have air supplied 2 Press the SWING button on the wireless remote controller to make the...

Page 20: ...t us at 1 305 718 2901 LennoxGlobalHVAC Lennoxintl com C 2016 Lennox Industries Inc For a complete list of the registered and common law trademarks owned by Lennox Industries Inc please visit www lenn...

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