Documents / Terms Conditions
Installation Guide for Brandt FTI 6B - 11BN Air Conditioning System
Comprehensive installation and operation guide for the Brandt FTI 6B and 11BN cassette air conditioning systems, including wiring, refrigerant piping, and remote control settings.
Table of contents
Manual images
Jump to the sectionQuick guide from the manual
This document provides installation and operation instructions for the Brandt FTI 6B and 11BN cassette air conditioning units. Key requirements include professional installation by qualified personnel, adherence to local safety regulations, and ensuring the electrical supply matches the unit's specifications. Always disconnect power before working on electrical boxes.
Installation of the indoor unit
The unit is designed for installation in a false ceiling. Ensure the location allows for proper air distribution and maintenance access. Use the provided brackets and follow the leveling instructions to ensure proper condensate drainage. The unit must be lifted by its four corners, never by the condensate pipe or refrigerant connections.
Refrigerant piping and condensate drainage
- Ensure a downward slope of at least 1 cm/m for condensate drainage.
- Install a siphon to prevent odors.
- Use high-quality copper tubing for refrigerant lines.
- Perform a vacuum test on the lines and indoor unit before opening the service valves.
- Verify leak-tightness using a leak detector or soapy water.
Electrical connections
The system must be permanently connected to a fixed electrical installation. Refer to the wiring diagrams provided in the manual for specific connections between the indoor unit and the FC 45 BN outdoor unit. Ensure all connections are secure and comply with local standards.
Remote control operation
The remote control allows for various modes: Cooling, Heating, Auto, Ventilation, and Dehumidification. The 'I FEEL' function uses the remote's sensor for local temperature detection. The system also features a timer for scheduled operation and a 'SLEEP' mode for night-time comfort. A manual override button is located under the front panel of the indoor unit if the remote is unavailable.
Maintenance
Regularly clean the air filter to ensure efficient operation. Before long periods of inactivity, turn the remote to 'OFF' and disconnect the main power switch. If the motor or turbine requires service, follow the specific disassembly steps outlined in the manual.
Manufacturer information
Brandt
Practical help
Common problems
Remote control not working
Check batteries or use the manual override button located under the front panel of the indoor unit.
Condensate dripping
Ensure the drainage pipe has a downward slope of at least 1 cm/m and that a siphon is installed.
Unit not cooling/heating properly
Verify that the refrigerant lines are properly vacuumed and that there are no leaks. Check if the 'I FEEL' sensor is obstructed by heat sources.
Before use
- Verify all installation accessories are present.
- Ensure the electrical supply matches the unit's voltage and frequency.
- Check that the unit is level in the false ceiling.
- Confirm all refrigerant connections are tight and leak-tested.
- Ensure the air filter is clean and properly installed.
Specs in practice
- 3N ~ 400V - 50Hz
- Required power supply for the FC 45 BN outdoor unit.
- Flare connection
- Standard method for connecting refrigerant copper pipes; requires specific torque (30-95 Nm depending on pipe diameter).
Images and diagrams
- Fig. 1 & 2: Dimensional drawings for FTI 6B and 11BN units.
- Fig. 6-9: Mounting details for the indoor unit in a false ceiling.
- Fig. 12: Correct condensate drainage installation with siphon.
- Fig. 28: Electrical wiring diagram for the system.
Model compatibility
- The FTI 6B and 11BN indoor units are designed to work with the FC 45 BN outdoor unit.
- The system uses R22 refrigerant (refer to local regulations regarding its use).
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.