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    Multi Variable Air Conditioners WALL Mounted Type Indoor Unit 

(1)

  Find the horizontal position by the seton method; since the drainage pipe is on the left side, it 

is necessary to adjust the rear panel to make its left side a little bit lower. 

(2)

  Fix the rear panel on the wall by bolts. 

(3)

  After installing the rear panel, pull it by hands to check if it is secured enough. The hang 

panel should support the weight of an adult (60kg), and the weight shared by every bolt 

should be fairly even. 

(4)

  The diameter showed in Fig.4.2 is 65mm. 

4.3 Debugging 

NOTICE 

!  Setting  of  main  indoor  unit  must  be  done  after  finishing  installation  of  unit. 

Otherwise, the whole system 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 

Point the remote controller at the light board or wired controller 

In fan mode, set master mode indoor unit through ▲ and ▼ button: 

(1)

  Adjust set temperature to 30

(2)

 

Within 5 seconds, press ▼ button and then press ▲ button repeatedly for three times. 

After finishing setting, “UC” is displayed on receiver light board for 5 seconds and “MASTER” 

icon is displayed on wired controller. 

4.3.2 Setting by wired controller 

4.4 Preparation of the piping hole 

(1)

  Make the piping hole (

Φ 65mm) in the wall at a slight downward slant to the outdoor side. 

The center of the hole should be determined referring to Fig.4.2. 

(2)

  Insert the piping-hole sleeve into the hole to prevent the connected piping and wiring 

from being damaged when passing through the hole. 

4.5 Installation of the drainage pipe 

(1)

  For proper draining, the drain hose should be placed at a downward sloping. 

(2)

  Do not wrench or bend the drain hose or flood its end by water. (Fig.4.4) 

(3)

  Wrap the drain hose with heat resistant material. 

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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