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Lennox VRF VEHD024N432U - User Manual

Lennox VRF VEHD024N432U
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VEHD019N432U
VEHD021N432U
VEHD024N432U
VEHD027N432U
VEHD031N432U
VEHD034N432U
VEHD038N432U
VEHD043N432U
VEHD048N432U
VEHD055N432U
Thank you for selecting
INSTALLA
TION/OPERATION
INSTRUCTIONS
VE High ESP Fan Coil
VRF SYSTEMS
INDOOR UNITS
©2016 Lennox Industries Inc.
Dallas, Texas, USA
And valid combinations
(see instructions inside)
HW Hi-Wall
UM Universal Mount
CC Compact Cassette
4C 4-Way Cassette
1C 1-Way Cassette
2C 2-Way 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/1Ph
Voltage Rating
V E HW 007 N 4 32 P
Available digit for future ref.
VE
HW
007
N
4
32
P
Evaporator Type: HW, UM, CC, 4C, 1C, 2C, HD, SD, LD, GD, AH, OA
Cooling Capacity MBtu/h
Certification Status: N: Non-certified; C: AHRI/ETL;
Refrigerant: 4: R410a
Voltage Rating: K, N, G, Y, T, P, U
Lennox Global VRF Unit
Internal Use

Questions and Answers

  • D
    Daniel DavisAug 9, 2025
    What to do if my Lennox VRF VEHD024N432U unit can’t start?
    • R
      Rose DoyleAug 9, 2025
      If your unit won't start, begin by checking if the power supply is properly connected. Then, inspect the circuit breaker for any tripping issues that could be caused by electrical leakage. Also, ensure that the input voltage is within an acceptable range. Finally, check the main PC-board for any defects.
  • B
    Brian ChaneyAug 15, 2025
    Why is my Lennox VRF VEHD024N432U cooling poorly?
    • C
      Claudia JacksonAug 15, 2025
      Several factors can cause a poor cooling effect. The filter might be dirty, so clean or replace it. The room may have too much heat load, so reduce the number of people or heat-generating devices. Make sure all doors and windows are closed. Ensure that the indoor unit's inlet and outlet are not blocked. The temperature setting could be too high, so lower it. Finally, there might be insufficient refrigerant due to a leak, so check for leaks and refill the refrigerant if needed.
  • K
    kristine48Aug 21, 2025
    Why is my Lennox VRF VEHD024N432U Air Conditioner Accessories heating poorly?
    • P
      Paul MartinezAug 21, 2025
      A poor heating effect can be due to several reasons. Start by checking if the filter is dirty and clean or replace it if necessary. Ensure all doors and windows are closed to prevent heat loss. If the setting temperature is too low, increase it. Also, check for refrigerant leakage and refill if needed, as insufficient refrigerant can cause poor heating.
  • B
    Brandon SotoAug 27, 2025
    What to do if Lennox Air Conditioner Accessories unit stops after running for a while?
    • R
      Robert ReynoldsAug 27, 2025
      If your unit stops after running for a while, it might be because the inlet or outlet of either the outdoor unit (ODU) or indoor unit (IDU) are blocked. Remove any obstacles that are blocking these inlets or outlets.
  • A
    Antonio AndrewsSep 2, 2025
    Why doesn’t the indoor fan start up during heating in my Lennox VRF VEHD024N432U Air Conditioner Accessories?
    • S
      sfieldsSep 2, 2025
      The indoor fan might not start immediately during heating for two reasons. First, at the start, the fan might wait until the heat exchange becomes hot to prevent delivering cool air; wait for the heat exchange to become hot. Second, during defrosting, the fan might stop because the system switches to cooling mode, also to prevent delivering cool air; allow the system to complete the defrosting process.

Summary

Safety Precautions

Installation Instructions

Installation of Indoor Unit

Covers unit dimensions, installation spots, and mounting procedures.

Refrigerant Pipe Connection

Details the process and torque specifications for connecting refrigerant pipes.

Drainage Pipe Installation and Drainage System Testing

Explains proper drain pipe installation, testing, and trap requirements.

Installation of Air Duct

Guides on installing air-out, air-return ducts, and their openings.

Wiring Work

Power Cord Connection

Details how to connect the power cord to the unit and ensure unified power supply.

Connection of Communication Wire between Indoor Unit and Outdoor Unit (or indoor unit)

Explains connecting communication wires between indoor and outdoor units.

Troubleshooting

Lennox VRF VEHD024N432U Specifications

General IconGeneral
CategoryAir Conditioner Accessories
ModelVEHD024N432U
BrandLennox
Voltage208-230V
Phase1
Frequency60 Hz
RefrigerantR410A
TypeVRF
Cooling Capacity24, 000 BTU

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