Dimplex RXMBS4 User Manual
Installation and Operating Instructions
4 Zone Wall Mounted MBS Controller
Model No. RXMBS4
Dimensions (mm)
Height Width Depth
120 85 31
THESE INSTRUCTIONS SHOULD BE READ AND RETAINED FOR FUTURE USE
November 2005 _ Issue 1
IMPORTANT SAFETY ADVICE
WARNING—This product must be installed
by a competent person or electrician in
conjunction with the current IEE Wiring
Regulations and relevant Building
Regulations
• DO NOT cover or obstruct the air inlet
or air outlet vents
• DO NOT recess the unit in to a wall,
as this will cause overheating and
potentially be a fire risk
• DO NOT install the unit in the
immediate vicinity of a bathroom or
swimming pool
General Principle
The RXMBS4 controller is compatible with Dimplex DuoHeat, EPX, EVS,
RPXN, Calidou and Apollo heaters.
The RXMBS4 controller is designed to allow control of Dimplex heaters from a
single point. Mains Borne Signalling uses standard live, neutral and earth
wiring to carry a signal to each heater. Each heater requires a receiver cassette
(Part no. RX9913 or part no. RX03002 for DuoHeat radiators) to receive the
signal from the RXMBS4 controller and change the heater mode. (e.g. comfort,
background or on, off)
(See Fig.1 below)
Technical Specification
Installation in an environment with normal pollution levels
• Power supply—230V~AC, +/- 10%, 50Hz
• Signal frequency—132,5 KHz FSK Modulation
• Functioning temperature—0 to +40ºC
• Storage temperature— -10ºC to 70ºC
• Digital display
• Clock back up in case of power failure—4 hours (approx.) Capacitor
• Consumption—4VA
• Class—II
• Protection—IP30
= 240V domestic supply circuit
Fig.1
Installation and Electrical Connection
WARNING—This product must be installed by a competent person or electrician in
The RXMBS4 must be wall mounted as follows:
• Remove single screw from underneath unit Fig.2 (1)
• Separate base and install the base with the appropriate screws and fixings for the wall type (not supplied) Fig.2 (2)
• Connect the two supply wires to the corresponding Neutral and Live terminals in the base Fig.3
• Position the unit on the base, first hooking the two recesses in the inside top over the hooks on the base then gently swing the unit
down so that the pins engage in the connector Fig.2 (3)
• Finally, secure with single fixing screw underneath Fig.2 (1)
Controls
Fig.2
Fig.4
Fig.3
1 - Time (24hr)
2 - Day of the week
3 - Current mode: *
on or off
comfort or background
comfort or frost protection
4 - Mode display for each zone
5 - Modification / override buttons
6 - Validation button
7 - Timed absence mode (e.g.holidays)
8 - Selector switch index mark
9 - Mode selector switch (see Fig.6 and Table 2 below)
Table 1
Symbol Function
*Dependant on configuration (see ‘Configuration Heating Requirements’)
AUTO Auto mode (heating runs to the preset program for each zone)
Continuous comfort (all zones)
Fig.5
PROG Set the daily programs
Table 2
Continuous set back (all zones)
Continuous frost protection (all zones)
Set the time
Off (no heat output)
Configures communication and heater modes
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