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15 

(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 

9 Malfunction Analyzing 

Warning: 

Do  not  repair  the  air  conditioner  by  yourself  for  the  incorrect  repair  would  lead  to  electric 

shockor  fire.  Please  contact  the  service  center  and  have  the  unit  repaired  by  the  specialized 

personnel. Check the following items before contacting the service center, as it could save your 

time and cost. 

Malfunction Phenomena 

Malfunction Analyzing 

The air conditioner could not start up 
just after turned off 

The over load protection switch of the unit makes it run after 3 
minutes delay 

Odor gave out when the unit just was 
turned on 

Odors or cigarette smoke which has been absorbed in is discharged out. 

Slight bicker was heard when the unit 
was running 

This is the sound of the running refrigerant 

Mist came from the air outlet vent when 
cooling 

Indoor air is cooled rapidly 

High Wall Type Indoor Unit

Summary of Contents for VEHW007N432P

Page 1: ...ay Cassette HD High Static Fan Coil SD Slim Fan Coil LD Low Static Fan Coil 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 reference K 230 60 3 and 220 50 3 N 380V 50 60Hz 3Ph G 460V 60Hz 3Ph Y 230V 60Hz 3Ph T 220V 50Hz 1Ph P 230V 60Hz 1Ph U 220V 50 60Hz 1...

Page 2: ...sons these graphics are subject to change by manufacturer without prior notice 8 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 responsible for their safety Children should be supervised to ...

Page 3: ...rminals of Wiring Board 10 5 2 Power Cord Connection 10 5 3 Connection of Communication Line of IDU and ODU 11 5 4 Connection of Communication Line of Wired Controller 11 5 5 Illuminate for Connection of Wired Controller and Indoor Units Network 12 5 6 Installation of the indoor unit 12 6 The Best Usage Method 13 7 Maintenance Method 13 7 1 Cleaning panel 13 7 2 Cleaning the air filters 14 7 3 Che...

Page 4: ... Please do not connect the ground wire to gas pipe water pipe lightning rod or telephoneline Be sure to use the exclusive accessory and part to prevent the water leakage electric shock and fire accidents If refrigerant leakage happens during installation please ventilate immediately Poisonous gas will emerge if the refrigerant gas meets fire Wire size of power cord should be large enough The damag...

Page 5: ...r corrosive circumstances Electrify the unit 8 hours before operation Please switch on for 8 hours before operation Do not cut off the power when 24 hours short time halting to protect the compressor Volatile liquid such as diluent or gas will damage the unit appearance Only use soft cloth with a little neutral detergent to clean the outer casing of unit Under cooling mode please don t set the roo...

Page 6: ...mperature C WBTemperature C Rated Cooling 27 19 35 24 Rated Heating 20 15 7 6 3 Preparations for Installation 3 1 Location for Installation 1 The appliance shall not be installed in the laundry 2 The indoor unit should be installed at 2 3m or higher above the floor 3 The top holder must be strong enough to support unit s weight 4 Drain pipe can drain water out easily 5 There is no obstacle at inle...

Page 7: ...inconvenience of the business contact It should be guided under the professional personnel when the air conditioner unit is moved to other place 3 3 Requirements for Communication Line Note If the unit is installed in the place with strong electromagnetic interference shielded wire must be applied on the communication wire between indoor unit and wired controller Twisted pair line with shielding f...

Page 8: ...L m feet of Communication Cable between Indoor Unit and Indoor Outdoor Unit Wire size mm 2 AWG Material Standard Remarks Light Ordinary polyvinyl chloride sheathed cord 60227 IEC 52 60227 IEC 53 L 1000m L 3280 5 6feet 2 0 75 2 AWG18 IEC 60227 5 2007 1 If the wire diameter is enlarged to 2 1 mm 2 2 AWG16 the total communication line length can reach 1500 m 4921 1 4feet 2 The cord shall be Circular ...

Page 9: ...e accident Above selection requirements Power cord size is based on BV single core wire 2 4pc at 40 Cambient temperature when laying across plastic pipe Air switch is D type and used at 40 C If actual installation condition varies please lower the capacity appropriately according to the specifications of power cord and air switch provided by manufacturer If the supply cord is damaged it must be re...

Page 10: ...t models Unit mm Item Model W H D VEHW007N432T VEHW009N432T 843 275 180 940 298 200 1008 221 319 VEHW007N432P VEHW009N432P VEHW012N432P VEHW015N432P VEHW017N432P VEHW012N432T VEHW015N432T VEHW017N432T VEHW019N432P VEHW021N432P VEHW024N432P VEHW019N432T VEHW021N432T VEHW024N432T High Wall Type Indoor Unit ...

Page 11: ...tem will report L7 error and the whole unit cannot operate The indoor unit defaults to be slave indoor unit when ex factory During project debugging if master indoor unit hasn t been set manually the outdoor unit will appoint one indoor unit as the master indoor unit automatically Then you can reset the master indoor unit by remote controller or wired controller 4 3 1 Setting by remote controller ...

Page 12: ...rench or bend the drain hose or flood its end by water Fig 4 4 3 Wrap the drain hose with heat resistant material Fig 4 4 4 6 Installation the connection pipes Connect the ends of the connection pipe with two leading pipes and then tighten the joint nuts tightly Connect the connect pipe with the two relative leading pipe tie the nut on tie in of the connect pipe tightly Notes Be careful in bending...

Page 13: ...ccording to site circumstance 5 1 Connect Cables and Terminals of Wiring Board Connection of Wire and Patch Board Terminal 1 The connection of wire as shown in fig 5 1 1 Strip about 25mm insulation of the wire end by stripping and cutting tool Remove the wiring screws on the terminal board Shape the tail of wire into ring by needle nose plier and keep the gauge of ring in accordance with screw Use...

Page 14: ...5 3 2 4 Secure the communication line with the wire clamp on the electric box 5 In order to ensure the reliability of communication between IDU and ODU and the communication among each IDU add a matched resistance supplied in a package before ex factory on the wiring board of the last indoor unit in a series connection The matched resistance should be connected in parallel between terminal screw D...

Page 15: ...ddress setting Address 1 is for main controller Address 2 is for slave controller Detailed setting please refer to the instruction manual of wired controller 5 6 Installation of the indoor unit 1 When routing the piping and wiring from the left or right side of the indoor unit it is necessary to cut off the tailings of the pipe left on the holder of the unit Shown in Fig 5 6 Cut down tailings 1 wh...

Page 16: ...not mangle the power cord and the communication cord The damaged power cord and communication cord can only be replaced by the specified ones 7 This air conditioner allows voltage fluctuation within 220 10 V 8 This air conditioner cannot be used for drying clothes and refrigerating food etc 7 Maintenance Method Warning 1 Do turn off the unit and cut off the power when cleaning the air conditioner ...

Page 17: ...ir filter As shown in Fig III open the surface panel by holding the both ends of groove along the arrow direction and then take the air filter out downward 2 Clean the filter Use cleaner or water to wash the filter if the filter is too dirty like oil stain on it warm water lower than 45 C with neutral detergent can be used then dry it in the shade Note Do not clean the filter by hot water higher t...

Page 18: ...ror L5 Anti freezing Protection d3 Ambient Temperature Sensor Error dE Indoor Unit CO2 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 9 Malfunction Analyzing Wa...

Page 19: ...within the receiving area or is there blockage Check if the voltages of batteries in the wireless remote controller are sufficient Otherwise change the batteries 9 1 Service center When the following phenomena appeared please stop operating immediately cut off the main power supply of the unit and then contact the service center of the air conditioner Harsh sound heard when running The fuse or pro...

Page 20: ...ct 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 lennox com ...

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