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VRF

utdoor

Units

Installation Manual

ESP Fan Coil Indoor Unit

Thank you for selecting LENNOX air conditioners. Please read this

manual carefully before operation

and keep it for further reference.

VEMD007N432U

Medium

Содержание VEMD007N432U

Страница 1: ...N432U VEMD018N432U VEMD019N432U VEMD021N432U VEMD024N432U VRF Iutdoor Units Installation Manual ESP Fan Coil Indoor Unit Thank you for selecting LENNOX air conditioners Please read this manual carefully before operation and keep it for further reference VEMD007N432U Medium ...

Страница 2: ...operly select the model according to actual using environment otherwise it may impact the using convenience 4 This product has gone through strict inspection and operational test before leaving the factory In order to avoid damage due to improper disassembly and inspection which may impact the normal operation of unit please do not disassemble the unit by yourself You can contact with the special ...

Страница 3: ...cturer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair maintain the unit without abiding by instruction manual or related regulations 6 After verification the problem or dispute is caused by the quality specification or performance of parts and components that...

Страница 4: ... Connection 12 5 3 Installation and Test of Drain Pipe 12 5 4 Installation of Air Duct 16 5 5 Installation of Wired Controller 18 6 Wire Connection 19 6 1 Connection of Wire and Wiring Board Terminal 19 6 2 Power Cord Connection 20 6 3 Connection of Communication Line of IDU and ODU 21 6 4 Connection of Communication Line of Wired Controller 21 6 5 Instructions on Connecting Wired Controller and I...

Страница 5: ...enser units the instructions or markings shall include refrigerant charging instructions A warning to assure that partial units shall only be connected to an appliance suitable for the same refrigerant This unit is a partial unit air conditioner complying with partial unit requirements of this International Standard and must only be connected to other units that have been confirmed as complying to...

Страница 6: ...ipe lightning rod or telephone line Be sure to use the exclusive accessory and part to prevent the water leakage electric shock and fire accidents 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 damaged power cord and connection wire should be replaced by excl...

Страница 7: ...ort 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 room temperature too low and keep the temperature difference between indoor and outdoor unit within 5 If anything abnormal happens such as burning smell please ...

Страница 8: ...utlet Hooker Air return Opening Drain Pipe 3 2 Rated Working Condition Indoor Side Condition Outdoor Side Condition Dry Bulb Temp C Wet Bulb Temp C Dry Bulb Temp C Wet Bulb Temp C Rated Cooling 27 19 35 24 Rated Heating 20 15 7 6 4 Preparations for Installation NOTE Product graphics are only for reference Please refer to actual products Unspecified measure unit is mm ...

Страница 9: ...nit 8 Tieline 6 Wrap the sponge at the connection position 9 others User Manual 1 copy Loosen leaf of Instruction Manual 1 copy harmful substance content table Qualified Certificate 1 copy Bar Code 1 copy 4 2 Location for Installation 1 The top holder must be strong enough to support unit s weight 2 Drain pipe can drain water out easily 3 There is no obstacle at inlet or outlet Please ensure good ...

Страница 10: ...cians for the installation Do not connect power until all installation work is finished 4 3 Requirements for Communication Line NOTES 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 function must be applied on the communication wire betwee...

Страница 11: ...tic field or strong interference it is necessary to use shielded wire 4 3 2 Select Communication Line for Indoor Unit and Outdoor Unit Fig4 3 2 Material Type Total Length L m feet of Communication Cable between Indoor Unit and Indoor Outdoor Unit Wire size mm2 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 AWG...

Страница 12: ...be within its rated value If the power cord is more than 15m long please increase properly the sectional area of power cord to avoid accident due to overload Above selection requirements Power cord size is based on BV single core wire 2 4pc at 40 C ambient temperature when laying across plastic pipe Air switch is D type and used at 40 C If actual installation condition varies please lower the capa...

Страница 13: ...door Unit 5 1 1 Outline Dimension and Installation Spots Equip with a service port after lifting the unit For the convenience of maintenance the service port should be on one side of the electric box and below unit s lower level Below are the outline dimension applicable to indoor units of VEMD007 024N432U ...

Страница 14: ... 462 486 VEMD024N432U 1360 415 1310 200 462 486 5 1 2 Punching of Bolt Spots and Bolt Installation Punch holes on the installation area according to the 4 spots on the paper pattern The punching diameter may refer to the diameter of expansion bolt about 60mm to 70mm depth as shown in Fig5 1 2 Fig 5 1 2 Insert the expansion bolt M10 into the hole and then drive the iron nail into the bolt as shown ...

Страница 15: ...tallation please finish the preparation work of all pipes connection pipe drain pipe and wires wired controller wire connection wire of IDU and ODU that need to be connected with the indoor unit Punch holes on the ceiling air return opening or air inlet Ceiling may have to be strengthened to make it level and to prevent it from vibration You may consult user or constructor for details If the ceili...

Страница 16: ...the pipe 4 Use a sponge to wrap the uninsulated connection pipe and the joint Then tie it tight with a plastic tape 5 3 Installation and Test of Drain Pipe 5 3 1 Notice for Installation of Drain Pipe 1 The drain pipe should be as short as possible and slope downward for at least 1 2 so that condensate can drain out easily 2 Size of the drainage hose must not be smaller than that of the drain pipe ...

Страница 17: ... special drain system for air conditioner Fig 5 3 1 5 3 2 Installation of Drain Pipe 1 Insert the drain hose into the drain hole and tighten it with tapes as shown in Fig5 3 2 2 Tighten the pipe clamp with the distance between screw nut and hose smaller than 4mm metal clamp accessory drain hose accessory thermal sponge accessory 3 Use sealing plate to make the pipe clamp and hose insulated as show...

Страница 18: ...oints Fig5 3 6 NO 2 Connection of downspout elbow Fig5 3 7 NO 3 Inserting pipe connection Fig5 3 8 10 The installation height of raising pipe for drainage should be lower than 850mm The gradient from raising pipe towards drainage direction should be at least 1 2 If the raising pipe is vertical with the unit the raising height should be less than 800mm Fig 5 3 9 11 Drain pipes should have a downwar...

Страница 19: ...ater as shown in 5 3 11 Remove the drain hose after finishing testing and then put on the plug of water tray 2 Spray 1L water on evaporator with sprayer as shown in 5 3 12 2 Start the water to check if water drain smoothly The starting method of water pump is as below 1 If project debugging of unit has been done please set the indoor unit in cooling or dry mode In this case the water pump will ope...

Страница 20: ...d in order to prevent air leakage The design and construction of air duct should comply with national requirements The edge of air return duct is suggested to be more than 150mm away from the wall Add a filter to the air return opening Please consider noise damping and vibration damping for the design and construction of air duct Besides noise source must be away from people For instance do not ha...

Страница 21: ...2U Fig 5 4 3 Item Model Dimension of air outlet flange Dimension of air return A B C D VEMD007 012N432U 122 585 200 710 VEMD013 021N432U 122 885 200 1010 VEMD024N432U 122 1185 200 1310 5 4 3 Installation of Air return Duct 1 Square flange is defaulted to be fitted on the back before ex factory Air return cover is on the bottom as shown in Fig 5 4 4 Fig5 4 4 2 If air return from the bottom is neede...

Страница 22: ... filter 4 Indoor unit 2 Canvas Duct 5 Supply Air Duct 3 Return Air Duct 6 Grille 5 4 4 Installation of Fresh Air Duct 1 If a fresh air duct is needed remove the fresh air baffle as shown in Fig 5 4 6 If a fresh air duct is not needed block the gap on the baffle with sponge 2 Install circular flange so that fresh air duct can be easily connected as shown in Fig 5 4 7 3 Both air duct and circular fl...

Страница 23: ...the unit is installed in places with strong electromagnetic interference it s recommended to use twin twisted shield wire During wire connection please pay attention that the metal shield layer of the twin twisted wire must be grounded outer case in order to prevent the unit from electromagnetic interference 11 Communication line should be separated from the power cord and the connecting wire of I...

Страница 24: ... connected depends on the capacity of outdoor unit For specific details please refer to the capacity configuration part 1 For air conditioner that uses single phase power 1 Remove the cover of electric box of indoor unit 2 Lead the power cord across the rubber ring 3 Connect the power cord to the L N terminals and the grounding screw 4 Fasten the power cord with a wire clamp 2 For air conditioner ...

Страница 25: ...h 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 D1 and D2 as shown in Fig 6 3 2 6 4 Connection of Communication Line of Wired Controller 1 Open the cover of electric box of indoor unit 2 Lead the communication line of wired controll...

Страница 26: ...ler 4 One wired controller is able to control 16 indoor units at the same time shown in Fig 6 5 1 NOTES When the wired controller is controlling multiple indoor units at the same time the indoor units must be of the same model When two wired controllers are controlling the indoor units you need to set an address for each wired controller Address No 1 refers to master wired controller while address...

Страница 27: ...Multi Variable Air Conditioners Duct Type Indoor Unit 23 Fig 6 5 1 ...

Страница 28: ...he air filter on the air inlet for cleaning Use a dust catcher or water to clean it If the filter is very dirty e g greasy you can clean it using warm water below 45 C that is mixed with mild detergent Then let it dry naturally under cool places 2 If the air conditioner is used in dusty place clean the air filter often generally once every 2 weeks 7 2 Maintenance Before Use season 1 Check whether ...

Страница 29: ...er Circuit Board Error L5 Anti freezing Protection d3 Ambient Temperature Sensor Error dC Capacity DIP Switch Setting Error L7 No Master Indoor Unit Error d4 Inlet Pipe Temperature Sensor Error dL Outlet Air Temperature Sensor Error L8 Power Insufficiency Protection d6 Outlet Pipe Temperature Sensor Error dE Indoor Unit CO2 Sensor Error o1 Over low voltage of IDU bus o2 Over high voltage of IDU bu...

Страница 30: ...after running for a while The inlet or outlet of ODU or IDU is blocked by obstacle Poor cooling effect The filter is dirty Too heavy heat load of room e g too many people Door or windows is open Inlet and outlet of IDU are blocked Setting temperature is too high Refrigerant is insufficient e g refrigerant leakage Poor heating effect The filter is dirty Door or window is open Setting temperature is...

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Страница 32: ...ct us at 1 305 718 2901 LennoxGlobalHVAC Lennoxintl com C 2019 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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