To Next PageTo Next PageWhat to do if my Lennox VRF VEHD019N432U unit can’t start?
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.
Why is my Lennox VRF VEHD019N432U Air Conditioner Accessories cooling poorly?
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.
Why is my Lennox VRF VEHD019N432U heating poorly?
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.
What to do if Lennox VRF VEHD019N432U Air Conditioner Accessories unit stops after running for a while?
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.
Why doesn’t the indoor fan start up during heating in my Lennox VRF VEHD019N432U Air Conditioner Accessories?
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.
Essential safety guidelines for installation, operation, and user interaction.
Identifies and names the main parts of the indoor unit with a diagram.
Specifies the conditions for rated cooling and heating performance.
Lists operational functions controllable by wired and remote controllers.
Lists and describes the standard fittings included with the unit.
Provides criteria and restrictions for choosing the unit's placement.
Details required specifications for communication wiring between units.
Details power cord size and air switch capacity for different models.
Instructions for physical installation and dimensions of the indoor unit.
Steps for drilling holes and installing mounting hardware.
Procedures for correctly connecting refrigerant piping.
Key considerations and requirements for drain pipe setup.
Detailed guide for installing the drainage pipe correctly.
How to verify the drainage system's functionality after installation.
Guidelines for installing the supply air duct.
Specifications for air outlet and return opening sizes for models.
Instructions for installing the return air duct.
Refers to manual for controller installation and debugging.
Explains network setup for controllers and indoor units.
Details how to properly connect wires to terminals on the unit.
Steps for connecting the main power cord to the unit.
How to connect communication cables between indoor and outdoor units.
Steps for cleaning the unit's air filters.
Inspections and actions required before and after usage seasons.
A comprehensive list of error codes and their meanings.
Guidance for diagnosing and resolving common unit issues.
The Lennox VE High ESP Fan Coil is an indoor unit designed for VRF (Variable Refrigerant Flow) systems, offering a range of models and configurations to suit various installation needs. This manual provides comprehensive instructions for its installation, operation, and maintenance.
The VE High ESP Fan Coil is a key component of a VRF air conditioning system, responsible for delivering conditioned air to indoor spaces. It operates in multiple modes including cooling, heating, fan-only, and dehumidifying, providing flexible climate control. The unit is designed for concealed ceiling installation, with options for various air duct configurations to distribute air effectively. It integrates with a wired controller (VEWCL1B, standard) and can optionally be controlled by a remote controller (VERCL1A). Key functions include fan speed adjustment, temperature adjustment, X-fan function (to prevent mold growth by drying the evaporator coil), quiet function, sleep function, save function, memory function, absence function, timer function, low-temperature dehumidify function, filter cleaning reminding function, I Feel function (for enhanced comfort based on remote sensor readings), light function, and swing function (for air direction control).
The manual details various models, including VEHD019N432U, VEHD021N432U, VEHD024N432U, VEHD027N432U, VEHD031N432U, VEHD034N432U, VEHD038N432U, VEHD043N432U, VEHD048N432U, and VEHD055N432U. These models vary in cooling capacity (MBtu/h), with specific dimensions provided for different capacity ranges (e.g., 5.6kW to 14.0kW and 16kW).
The units support various voltage ratings:
Refrigerant: The system uses R410a refrigerant.
For models like VEHD019N432U to VEHD055N432U (220~240V-1ph-50Hz or 208~230V-1ph-60Hz), the recommended air switch capacity is 6A, with a minimum sectional area of 1.0 mm² for both the ground wire and power cord. Copper wire only is specified for power cords, and if the cord length exceeds 15m (49-1/4 feet), the sectional area should be increased.
Drainage Pipe Installation: The drainage pipe should have a downward gradient of at least 1%~2% to ensure smooth condensation water drainage. The raising pipe for drainage should be lower than 850mm (31-1/2 inches).
Communication Line: Shielded twisted pair lines are recommended for communication between indoor units and wired controllers, and between indoor units and outdoor units, especially in environments with strong electromagnetic interference. The total length of communication cable for wired controllers should not exceed 250m (850 feet), and for indoor-outdoor unit communication, it can reach up to 1000m (3280 feet), or 1500m (4920 feet) if the wire diameter is enlarged to 18AWG.
The Lennox VE High ESP Fan Coil is designed for efficient and reliable climate control, with detailed instructions to ensure safe installation, optimal performance, and ease of maintenance.
General| Brand | Lennox |
|---|---|
| Model | VRF VEHD019N432U |
| Category | Air Conditioner Accessories |
| Language | English |
