Lennox VRF VEHW007C432P

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VEHW007C432P

VEHW009C432P

VEHW012C432P

VEHW018C432P

VEHW024C432P

Thank you for selecting

INSTALLA

TION/OPERATION

INSTRUCTIONS

VE High Wall Type

VRF SYSTEMS

INDOOR UNITS

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.

007

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

Main Page

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This document provides installation and operation instructions for Lennox VRF (Variable Refrigerant Flow) Systems Indoor Units, specifically the VE High Wall Type. These units are designed for multi-variable air conditioning applications.

Function Description

The Lennox VE High Wall Type indoor units are part of a VRF system, which is a type of HVAC (Heating, Ventilation, and Air Conditioning) system that uses refrigerant as the cooling and heating medium. VRF systems are known for their ability to provide simultaneous heating and cooling to different zones within a building, as well as their energy efficiency.

These indoor units are designed to be wall-mounted and are responsible for delivering conditioned air into a room. They work in conjunction with an outdoor unit and can be controlled individually or as part of a network of multiple indoor units. The system allows for precise temperature control and can operate in both cooling and heating modes.

The units are equipped with various sensors to monitor ambient temperature, inlet pipe temperature, and outlet pipe temperature, ensuring optimal performance and safety. They also feature communication capabilities, allowing them to interact with wired controllers and other indoor/outdoor units within the VRF network.

Usage Features

The Lennox VE High Wall Type indoor units offer several features to enhance user comfort and convenience:

Temperature Control: Users can adjust the set temperature to their preference, with recommendations to maintain a temperature difference of no more than 5°C (41°F) between indoor and outdoor temperatures for energy efficiency.
Air Direction Adjustment: The units allow for adjustment of the air direction both vertically (up and down) and horizontally (left and right). The vertical guide louver can swing automatically or be stopped at a specific angle, while the horizontal louver can be manually adjusted to distribute air evenly throughout the room.
Operating Modes: The units support various operating modes, including fan mode, and can be set as a master or slave unit within a multi-unit system.
Wired and Remote Control: The units can be controlled using either a remote controller or a wired controller. The wired controller can manage up to 16 indoor units simultaneously, offering centralized control for larger installations.
Safety Features: The system incorporates several safety mechanisms, including protection against fan malfunction, E-heater issues, water overflow, power supply errors, anti-freezing, and power insufficiency. It also includes warnings for low air quality and filter cleaning reminders.
Quiet Operation: The design aims to minimize operational noise, although slight bickering sounds from running refrigerant or creaking sounds from temperature-induced expansion of parts may occur.
Ventilation: When using gas/oil-supplied heating equipment in conjunction with the air conditioner, it is recommended to open doors and windows to ensure good ventilation and prevent oxygen deficit.
Energy Efficiency Recommendations: To optimize energy consumption, users are advised not to set the room temperature too low during cooling, avoid prolonged opening of windows and doors while the unit is running, and prevent direct exposure to cooled air for extended periods.

Maintenance Features

Regular maintenance is crucial for the longevity and efficient operation of the Lennox VE High Wall Type indoor units. The manual outlines several maintenance procedures:

Panel Cleaning: The surface panel can be easily removed for cleaning. It should be cleaned with a soft-hair brush, water, and a neutral cleaning fluid, then dried.
Air Filter Cleaning: Air filters should be cleaned every 3 months, or more frequently in dusty environments. The filters can be removed by opening the surface panel and pulling them downward. They can be washed with water or a neutral detergent (using warm water below 45°C for stubborn dirt) and then dried in the shade. It is explicitly warned not to clean filters with hot water above 45°C or to dry them by fire, as this can cause deformation or fire.
Pre-Season Check: Before the usage season, users should check for any blockages in the air inlet or outlet vents, ensure the earth wire is reliably earthed, replace batteries in the wireless remote controller if needed, and confirm that the air filter is properly installed. It is also recommended to energize the unit 8 hours before turning it on after a long period of inactivity.
Post-Season Check: After the usage season, the air filter and the body of the air conditioner should be cleaned, and the main power supply should be cut off.
Troubleshooting Guide: The manual includes a malfunction analyzing section with a table of error codes for indoor units (e.g., Indoor Unit Error, Indoor Fan Protection, Water Full Protection, Communication Error) and a troubleshooting guide for common issues (e.g., unit not starting, strange odors, unusual sounds, poor cooling/heating effect, remote controller malfunction).
Professional Service: For any abnormal situations, such as harsh running sounds, frequent fuse/protector openings, water leakage, overheated power cords, or abnormal odors, users are advised to immediately stop operation, cut off the main power supply, and contact a Lennox-appointed service center. Users are explicitly warned not to attempt repairs themselves to avoid electric shock or fire.
Disposal: The product should not be disposed of as unsorted municipal waste; separate collection for special treatment is necessary.