HVAC / Towel Warmers
Installation Guide for Terma Alex 760x500mm SX Heated Towel Rail
Comprehensive installation guide for the Terma Alex 760x500mm SX heated towel rail. This manual covers the parts list, step-by-step mounting instructions, valve connection, and maintenance tips.
Table of contents
Important Information Before Installation
Please read the entire instruction manual before beginning the installation. Ensure that all parts listed in the fixing kit are present. Note that valves are not provided with this product; you must have standard 1/2" radiator valves ready before starting. This radiator is designed specifically for closed heating systems.
For all installation and warranty enquiries, please contact Crimson Bear Customer Support at 01535 636256.
Fixing Kit Content
Before starting, verify you have the following components:
- Rawl plugs (1)
- Wall fixing screws and washers (2)
- Mounting bracket-1 (3)
- Bracket connecting screws (4)
- Bracket to collector fixing screws (5)
- Mounting bracket-2 (6)
- Air vent
- Allen key
Installation Steps
- Preparation: Check for hidden wires or pipes in the wall before drilling. Ensure the radiator is fitted at least 100 mm from the floor to maximize heat efficiency.
- Marking: Note the distances between bracket centers and mark the position of the brackets on the wall.
- Drilling: Drill holes to approximately 80 mm depth using a 10 mm drill bit.
- Mounting Brackets: Insert rawl plugs (1). Use the connecting screw with a washer (2) to attach mounting bracket-1 (3) to the wall.
- Radiator Preparation: Attach mounting bracket-2 (6) to the radiator using the bracket-to-collector fixing screw (5).
- Final Assembly: Guide all mounting brackets-2 (6) into the mounting brackets-1 (3) already on the wall and fix them securely using the connecting screws (4).
- Connection: Connect the water flow using appropriate 1/2" BSP valves, following the valve manufacturer's guidelines.
- Finishing: Fill the radiator and purge any trapped air via the bleed valve located at the top of the radiator.
Maintenance and Safety
To keep your radiator in good condition, wipe it down using a clean, damp cloth. Never use scourers or abrasives, as these can damage the finish. The supplied plugs are intended for hard masonry walls only; ensure you use the correct plug type for your specific wall construction.
Practical help
Common problems
Radiator is not heating up
Ensure the radiator has been filled correctly and all trapped air has been purged using the bleed valve at the top of the unit.
Mounting brackets feel loose
Ensure the rawl plugs are suitable for your wall type (supplied plugs are for hard masonry only) and that the connecting screws (4) are fully tightened.
Before use
- Verify all parts from the fixing kit are present.
- Purchase standard 1/2" BSP radiator valves (not included).
- Check wall for hidden wires or pipes before drilling.
- Ensure the wall type is compatible with the supplied rawl plugs.
- Plan for a minimum 100 mm clearance from the floor.
Specs in practice
- 10 mm drill bit
- Required size for drilling holes to accommodate the supplied rawl plugs.
Images and diagrams
- Page 1 provides a technical drawing of the radiator dimensions and a visual list of the fixing kit components.
- Page 2 illustrates the 9-step installation process, showing the drilling, bracket mounting, and final assembly sequence.
Model compatibility
- Designed for closed heating systems only.
- Supplied wall plugs are for hard masonry walls only; use appropriate fixings for other wall types.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.