Installation and Operating Instructions
4 Zone Wall Mounted Pilot Wire Controller
Model No. RXPW4
November 2005—Issue 1
Dimensions (mm)
Height Width Depth
120 |
85 |
31 |
THESE INSTRUCTIONS SHOULD BE READ AND RETAINED FOR FUTURE USE
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
Pilot Wire Connection
IMPORTANT
Do NOT connect the pilot wire to earth
Care should be taken with the installation of the pilot wire(s) as when switching to background (setback) they become energised at 240V although only at a current of 1mA.
In every case a suitable means of isolation must be provided for the pilot wire and marked to indicate that two sources of supply may be present at the heater.
Where pilot wires are installed separately from the heater final sub-circuit they should be protected, double insulated and carry their own integral earth continuity conductor.
Note: Pilot wire installations are appropriate for single phase connection only
General Principle
The RXPW4 controller is compatible with Dimplex DuoHeat, EPX, EVS, RPXN, Calidou and Apollo heaters.
The RXPW4 controller is designed to allow control of multiple Dimplex heaters from a single point.
Each heater contains a mains cable with a fourth black pilot wire which can be connected to heaters in a system in series.
The controller uses the pilot wire to conduct a 240V, low current signal to each heater to change the heater mode (e.g. comfort, background or on, off)
Only one programmer is required for up to 20 heaters on the same zone. (See Fig.1 below)
= 240V domestic supply circuit |
Fig.1 |
Technical Specification
Installation in an environment with normal pollution levels
•Power supply—230V~AC, +/- 10%, 50Hz
•Functioning temperature—0 to +40ºC
•Storage temperature— -10ºC to 70ºC
•Type of disconnection: micro-switching / 1.C type according to EN 60730-1
•Clock back up in case of power failure—4 hours (approx.) Capacitor
•Consumption—2VA
•Class—II
•Protection—IP30
Installation and Electrical Connection
WARNING—This product must be installed by a competent person or electrician in
The RXPW4 must be wall mounted as follows:
•Remove single screw from underneath unit Fig.2 (1)
•Separate base, remove bottom centre screw from base and remove cover to expose electrical connections Fig.3 (1) and Fig.4
•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 (6) and Live (8) terminals in the base and connect pilot wire(s) (1-4) Fig.4
•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).
Fig.2 |
Fig.3 |
Fig.4 |
Controls
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
Fig.5
AUTO
PROG
Fig.6
Table 2
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