1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your VAILLANT ClimaVAIR 3.5 kW Mono Split Air Conditioner. Please read this manual thoroughly before using the appliance and keep it for future reference. Proper use and maintenance will ensure optimal performance and extend the lifespan of your unit.
2. Important Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, or injury.
- Professional Installation: Installation, maintenance, and repair of this appliance must be performed by qualified service personnel. Incorrect installation can lead to electric shock, fire, or water leakage.
- Electrical Safety: Ensure the power supply matches the unit's specifications. Do not operate the unit with wet hands or in wet conditions. Do not modify the power cord or plug.
- Children and Vulnerable Persons: This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure they do not play with the appliance.
- Flammable Refrigerant: This unit contains R32 refrigerant, which is mildly flammable. Ensure proper ventilation during installation and servicing. Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
- Clearance: Maintain adequate clearance around the indoor and outdoor units for proper airflow and servicing.
- Cleaning: Disconnect power before cleaning. Use a soft, dry cloth. Do not use chemical solvents or abrasive cleaners.
3. Product Overview
The VAILLANT ClimaVAIR is a mono split air conditioning system designed for efficient cooling and dehumidification of indoor spaces. It consists of an indoor unit and an outdoor unit (not shown in detail here, but essential for operation).

Figure 1: Front view of the VAILLANT ClimaVAIR indoor unit. This image displays the sleek, white design of the indoor air conditioner unit, featuring the Vaillant logo centrally and a digital display on the right showing '26' and mode indicators.
Key Features
- Cooling Capacity: 3.5 kW
- Dehumidifier Function: Effectively reduces humidity levels.
- Wired Power Source: Reliable and consistent power delivery.
- Compact Design: White finish to blend with various interior decors.
4. Setup and Installation
The VAILLANT ClimaVAIR air conditioner requires professional installation. Attempting to install the unit yourself without proper qualifications can void your warranty and pose significant safety risks. Please contact a certified HVAC technician for installation.
General Installation Overview (for reference by qualified personnel):
- Site Selection: Choose appropriate locations for both indoor and outdoor units, considering airflow, drainage, and structural support.
- Mounting: Securely mount the indoor unit to a wall and the outdoor unit on a stable surface or wall bracket.
- Refrigerant Piping: Connect the refrigerant lines between the indoor and outdoor units, ensuring proper insulation and leak-free connections.
- Drainage: Install a drain hose for condensate removal from the indoor unit.
- Electrical Wiring: Connect the power supply and communication wiring according to the wiring diagram provided with the unit.
- Vacuuming and Charging: Evacuate the refrigerant lines to remove air and moisture, then charge with the correct amount of R32 refrigerant.
- Test Run: Perform a test run to ensure all functions operate correctly and there are no leaks or abnormal noises.

Figure 2: The VAILLANT ClimaVAIR indoor unit installed high on a wall in a modern living room, demonstrating its discreet integration into a home environment above a sofa.

Figure 3: The VAILLANT ClimaVAIR indoor unit mounted on a wall in a bedroom, positioned above the headboard of a bed, illustrating its suitability for various room types.
5. Operating Instructions
Your VAILLANT ClimaVAIR air conditioner is controlled via a remote control (not included in this manual's scope, refer to remote control manual for specific button functions).
Basic Operation
- Power On/Off: Press the ON/OFF button on the remote control to start or stop the unit.
Operating Modes
The unit typically offers several operating modes:
- Cooling Mode (Snowflake icon): For cooling the room. Set your desired temperature.
- Dehumidifier Mode (Water drop icon): Reduces humidity in the room without significant cooling.
- Fan Mode (Fan icon): Circulates air without cooling or heating.
Temperature Adjustment
Use the Temperature Up (▲) and Temperature Down (▼) buttons on the remote control to set your desired temperature. The display on the indoor unit will show the set temperature.
Fan Speed Adjustment
Press the Fan Speed button to cycle through available fan speeds (e.g., Low, Medium, High, Auto).
6. Maintenance
Regular maintenance ensures efficient operation and prolongs the life of your air conditioner. Always disconnect power to the unit before performing any maintenance.
Air Filter Cleaning
The air filters should be cleaned every two weeks or more frequently depending on usage and air quality.
- Open the front panel of the indoor unit.
- Carefully remove the air filters.
- Clean the filters with a vacuum cleaner or wash them with lukewarm water and a mild detergent.
- Rinse thoroughly and allow them to dry completely in a shaded area before reinserting.
- Close the front panel.
Exterior Cleaning
Wipe the exterior of the indoor unit with a soft, dry cloth. For stubborn dirt, use a damp cloth with a mild detergent, then wipe dry. Do not use harsh chemicals, abrasive cleaners, or solvents.
Seasonal Maintenance
Before the cooling season, it is recommended to have a qualified technician inspect the refrigerant levels, electrical connections, and overall system performance.
7. Troubleshooting
Before contacting service, check the following common issues:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not start | No power supply Remote control batteries low | Check power connection and circuit breaker Replace remote control batteries |
| Insufficient cooling | Dirty air filters Windows/doors open Temperature setting too high | Clean air filters Close windows and doors Lower the set temperature |
| Water leakage from indoor unit | Clogged drain hose Improper installation | Clear the drain hose Contact a qualified technician for inspection |
| Unusual noise | Loose parts Fan obstruction | Contact a qualified technician for inspection |
If the problem persists after attempting these solutions, please contact a qualified service technician.
8. Technical Specifications
| Specification | Detail |
|---|---|
| Brand | VAILLANT |
| Model Number | 10022693 (VAI5-035WNI) |
| Manufacturer Part Number | 0010022693 |
| Product Dimensions (Indoor Unit) | 57 x 29 x 29 cm |
| Item Weight | 14 kg |
| Color | White |
| Energy Source | Wired |
| Wattage | 3.5 kW |
| Cooling Capacity | 3.5 Kilowatt |
| Special Features | Dehumidifier |
| Included Components | Installation hardware |
| Refrigerant Type | R32 (refer to unit label for exact charge) |
9. Warranty and Customer Support
Your VAILLANT ClimaVAIR air conditioner comes with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official VAILLANT website. Keep your proof of purchase for warranty claims.
For technical support, service requests, or inquiries about spare parts, please contact your local VAILLANT authorized dealer or customer service center. Contact information can typically be found on the VAILLANT official website or in your product documentation.





