Instruction Manual

RMT-PILL

250W Trailing Edge Wireless Dimmer

2025

Version 2.0.2

Contents

1.0 What is the RMT-PILL? 2

2.0 Loadings 3

3.0 Installation of the RMT-PILL 3

4.0 Auxiliary Input 4

5.0 Initial Checks 4

6.0 Programming the RMT-PILL 4

7.0 Appendix 1: LED Diagnostics 6

1.0 What is the RMT-PILL?

The RMT-PILL trailing edge dimmer is suitable for mains dimmable LED or halogens. It is intended to be installed in a backbox as a retrofit solution. 

Depending on the fittings used in conjunction with the RMT-PILL, it can be used with or without a neutral connection. 

RMT-PILL modules can be controlled by any Rako device that transmits wireless messages.

NB

The RMT-PILL dimmer module is not suitable for inductive loads such as wire-wound transformers or electric motors. Connecting these loads will cause damage to the unit.

2.0 Loadings

3.0 Installation of the RMT-PILL

Installation should only be carried out by a competent electrician.

• The module should be mounted in areas that are adequately ventilated, dry, and outside of any enclosed metal casings that may interfere with the wireless signal.

• While the modules are designed to be maintenance-free, they should be mounted in an accessible location should investigation or re-addressing of the units be necessary.

• Allow for additional space inside the backbox for cables and the unit. 

• A neutral should be used whenever possible to optimise dimming performance.

• The RMT-PILL is designed to be mounted in an earthed electrical back box or conduit box. If a metal back box is used, then the aerial should be mounted outside of the back box into the wall.

• Without a neutral, the RMT-PILL can only be used with mains voltage tungsten halogen and not mains voltage LEDs. It is not suitable for low-voltage or any other transformer-fed lighting types.

• Only use the dimmer with either both neutrals connected or neither. Wiring a single neutral risks damaging the dimmer.

4.0 Auxiliary Input

The auxiliary input can be used in conjunction with a third-party switch to control the load without the use of a Rako wireless command. The required 2.54 pitch header connector is not included.  

NB

Rasoft Pro and a suitable Communication Device (RAMPI/HUB) are required to enable the auxiliary input.

5.0 Initial Checks

• When power is initially connected to the module, the load should power up to full brightness. 

• The internal LED behind the vent should flicker when the module receives any Rako wireless message.

• Should the module not respond to any of the above, then further investigation must be made before proceeding further.

6.0 Programming the RMT-PILL

Once the RMT-PILL has powered up and has been tested working with the setup button, the device is ready to be programmed. 

Programming using a RAMPI or HUB using Rasoft Pro

Wireless System Setup Guide

Programming using an RCM Keypad

Programming With An RCM Guide.  

For further general information relating to the RMT-PILL, see the Wireless Module Application Sheet.

7.0 Appendix 1: LED Diagnostics

Should the module not respond to any of the above, check the supply voltage.

For additional diagnostic information, see the Wireless Device LED Diagnostics.