Table of Contents
Advertisement
Quick Links
Thank you for selecting LENNOX air conditioners. Please read this manual carefully before operation
and keep it for further reference.
VRF Iutdoor Units
Installation Manual
Medium
ESP Fan Coil Indoor Unit
VEMD007N432U
VEMD008N432U
VEMD009N432U
VEMD011N432U
VEMD012N432U
VEMD013N432U
VEMD015N432U
VEMD018N432U
VEMD019N432U
VEMD021N432U
VEMD024N432U
Advertisement
Table of Contents
Related Manuals for Lennox VEMD007N432U
Summary of Contents for Lennox VEMD007N432U
- Page 1 VRF Iutdoor Units Installation Manual Medium ESP Fan Coil Indoor Unit VEMD007N432U VEMD008N432U VEMD009N432U VEMD011N432U VEMD012N432U VEMD013N432U VEMD015N432U VEMD018N432U VEMD019N432U VEMD021N432U VEMD024N432U Thank you for selecting LENNOX air conditioners. Please read this manual carefully before operation and keep it for further reference.
- Page 2 To Users Thank you for selecting LENNOX’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...
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product. (2) Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer.
-
Page 4: Table Of Contents
Contents 1 Safety Notices (Please be sure to abide) ..............1 2 Safety Precautions..................... 2 3 Product Introduction ....................4 3.1 Names of Key Components ....................4 3.2 Rated Working Condition ....................4 4 Preparations for Installation ..................4 4.1 Standard Fittings ....................... 5 4.2 Location for Installation ..................... -
Page 5: Safety Notices (Please Be Sure To Abide)
Multi Variable Air Conditioners Duct Type Indoor Unit 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. -
Page 6: Safety Precautions
Multi Variable Air Conditioners Duct Type Indoor Unit 2 Safety Precautions Means items that must be forbidden! Otherwise, it may lead to personal injury or death or serious damage. Means items that must be followed! Otherwise, it may lead to personal injury or property loss. Installation should be conducted by dealer or Follow this instruction to... - Page 7 Please contact LENNOX appointed service LENNOX appointed service center center. If abnormality keeps for help. going, the unit might be damaged and lead to electric shock or fire.
-
Page 8: Product Introduction
Multi Variable Air Conditioners Duct Type Indoor Unit 3 Product Introduction 3.1 Names of Key Components Fig 3.1 ②(with water ① ③ ④ ⑤ ⑥ pump) Air-return Name Electric box water pump Air Outlet Hooker Drain Pipe Opening 3.2 Rated Working Condition Indoor Side Condition Outdoor Side Condition —... -
Page 9: Standard Fittings
Multi Variable Air Conditioners Duct Type Indoor Unit 4.1 Standard Fittings Please use the supplied standard fittings listed below as instructed. Name Graphics Quantity Purpose wire controller package (including wire controller, emergency bottom case, 1set Control indoor unit instruction manual, screws, packing box) optional parts Remote controller... -
Page 10: Requirements For Communication Line
Multi Variable Air Conditioners Duct Type Indoor Unit Fig4.2.1 NOTES! ① Installation of the unit must be in accordance with National Electric Codes and local regulations. ② Improper installation will affect unit’s performance, so do not install the unit by yourself. Please contact local dealer to arrange professional technicians for the installation. - Page 11 Multi Variable Air Conditioners Duct Type Indoor Unit Total length of communication line Wire size Material Material type between indoor unit Remarks /AWG) Standard and wired controller L (m/feet) Total length of communication line can't exceed 250m (820-1/5feet). Light/Ordinary The cord shall be Circular polyvinyl chloride 2×0.75~2×1.25 cord (the cores shall be...
-
Page 12: Wiring Requirements
4.4 Wiring Requirements (1) Power Cord Size and Air Switch Capacity. Minimum Sectional Minimum Sectional Air Switch Model Power Supply Area of Ground Area of Power Capacity(A) Wire(mm Cord(mm VEMD007N432U VEMD008N432U VEMD009N432U VEMD011N432U 220~240V-1Ph-50Hz VEMD012N432U 208~230V-1Ph-60Hz VEMD013N432U VEMD015N432U VEMD018N432U VEMD019N432U VEMD021N432U... -
Page 13: Installation Instructions
Multi Variable Air Conditioners Duct Type Indoor Unit 5 Installation Instructions 5.1 Installation of Indoor 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... - Page 14 Multi Variable Air Conditioners Duct Type Indoor Unit Below are dimensions of A, B, C, etc. for different models: Unit: mm Item Model VEMD007~012N432U VEMD013~021N432U 1060 1010 1360 1310 VEMD024N432U 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.
- Page 15 Multi Variable Air Conditioners Duct Type Indoor Unit NOTES! The length of bolt depends on the installation height of the unit, bolts are field supplied. 5.1.3 Lift the Unit Lift up the unit to the ceiling and secure it on the bolt. Use specialized nut to secure the unit. Fig 5.1.4 NOTES ! ①...
-
Page 16: Pipe Connection
Multi Variable Air Conditioners Duct Type Indoor Unit 5.1.4 Horizontal Alignment After the indoor unit is installed, remember to check the horizontal status of the whole unit. It should be horizontal from front to back and slant 1% from left to right, following the drainage direction, as shown in Fig.5.1.5. - Page 17 Multi Variable Air Conditioners Duct Type Indoor Unit use adhesives to connect drain hole and drain hose. (5) When the drain pipe is used for several equipment, the shared pipe should be about 100mm lower than the drain hole of each equipment. In this case, use thicker pipe. (6) It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit.
- Page 18 Multi Variable Air Conditioners Duct Type Indoor Unit (8) Each unit should be installed with one water-sealed joint. Fig 5.3.5 (9) The horizontal pipe can be connected to vertical pipe in the same level; please select the connection way as shown in following fig. Fig5.3.6 Fig 5.3.7 Fig 5.3.8...
- Page 19 Multi Variable Air Conditioners Duct Type Indoor Unit 5.3.3 Test of Drainage System Models without water pump (1) Fill some water to the water tray of indoor unit as following. 1) Connect the drain hose to the other drain connection pipe of water tray and fill about 1L water (as shown in Fig 5.3.11).
-
Page 20: Installation Of Air Duct
Multi Variable Air Conditioners Duct Type Indoor Unit 5.4 Installation of Air Duct NOTES! ① There should be insulation layer on air-out duct, air-return duct and fresh air duct to avoid heat loss and moisture. Adhere a nail on the air duct and then add thermal sponge with a layer of tin. - Page 21 Multi Variable Air Conditioners Duct Type Indoor Unit Name Name Return Air Duct Transition Pipe Canvas Duct Supply Air Duct Return Air Blinds Diffuser Hanger Rod Diffuser Connector — — Supply Air Outlet 5.4.2 Shape and Size of Air Outlet and Air-return Opening The following figure is applicable for the models below: VELD007~024N432U Fig 5.4.3...
-
Page 22: Installation Of Wired Controller
Multi Variable Air Conditioners Duct Type Indoor Unit end of air-return duct connects with the air-return louver. In order to adjust the height conveniently, you can make a folded canvas duct and have it strengthened by 8# iron wire. (4) Air return from the bottom will produce more noise than air return from the back. So we suggest you to add a noise damper and static pressure case to lower noise if you choose air return from the bottom. -
Page 23: Wire Connection
Multi Variable Air Conditioners Duct Type Indoor Unit 6 Wire Connection WARNING! Before obtaining access to terminals, all supply circuits must be disconnected. (1) For personal safety, the air conditioner must be properly grounded. (2) Read carefully the voltage indicated on the nameplate before connecting wires. Then connect wires according to the wiring diagram. -
Page 24: Power Cord Connection
Multi Variable Air Conditioners Duct Type Indoor Unit core wire of the multi-core wire. 4) Confirm each position of core wire on the round terminal and then use a screwdriver to tighten the terminal screw. Unit: mm Fig 6.1.1 Fig 6.1.2 6.2 Power Cord Connection NOTE! Power supply of each indoor unit must be from the same source. -
Page 25: Connection Of Communication Line Of Idu And Odu
Multi Variable Air Conditioners Duct Type Indoor Unit 6.3 Connection of Communication Line of IDU and ODU (1) Open the cover of electric box of indoor unit. (2) Lead the communication line across the rubber ring. (3) Connect the communication line to terminal D1 and D2 on the 4-digit wiring board of indoor unit, as shown in Fig.6.3.1. -
Page 26: Instructions On Connecting Wired Controller And Idu Network
Multi Variable Air Conditioners Duct Type Indoor Unit 6.5 Instructions on Connecting Wired Controller and IDU Network (1) Communication between IDU and ODU is D1 while communication among each IDU is D2. (2) Communication between IDU and wired controller is H1, H2. (3) One indoor unit can connect two wired controllers (master wired controller and sub-master wired controller). - Page 27 Multi Variable Air Conditioners Duct Type Indoor Unit Fig 6.5.1...
-
Page 28: General Maintenance
Multi Variable Air Conditioners Duct Type Indoor Unit 7 General Maintenance WARNING! ① Before the cleaning, turn unit off and disconnect power supply. Otherwise, it may result in electric shock or personal injury. ② When cleaning the air conditioner, please use stable standing platform. ③... -
Page 29: Malfunction Codes Of Idu
Multi Variable Air Conditioners Duct Type Indoor Unit 8 Malfunction Codes of IDU Error Error Error Content Content Content Code Code Code Quantity Of Group Control Indoor Unit Error Humidity Sensor Error Indoor Units Setting Error Indoor Units Incompatibility Water Temperature Sensor Indoor Fan Protection Error Error... -
Page 30: Troubleshooting
Multi Variable Air Conditioners Duct Type Indoor Unit 9 Troubleshooting If your air conditioner is not working well, please check the following table first before asking for service: Phenomenon Troubleshooting Power supply is not connected. Circuit breaker tripping caused by leakage of electricity. The unit can’t start Input voltage is too low. - Page 32 Contact us at +1-305-718-2901 LennoxGlobalHVAC@Lennoxintl.com 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...