Dimplex RXPWIF Installation Instructions

Installation and Operating Instructions
Universal Pilot Wire Interface Unit Model No: RXPWIF
THESE INSTRUCTIONS SHOULD BE READ AND RETAINED FOR FUTURE USE
General Safety Advice
When using electrical appliances, basic precautions should always be followed to reduce the risk of fi re, electrical shock, and injury to persons, including the following:
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 unit

DO NOT install the unit in the immediate vicinity of a swimming pool.

DO NOT use outdoors.

NOTE that due care and consideration must be taken when using appliances in series with a thermal control, a program controller, a timer or any other device that switches on the heat automatically, since a fi re risk exists when the appliance is accidentally covered or displaced.
86767 Issue 6
General Principle
The RXPWIF unit is designed to allow any electrical product (electrical load of 3kW or less) to be controlled on a time/zone basis by a Dimplex pilot wire programmer (for example models RX010006 / RXPW4).
The unit converts a standard pilot wire controller output signal into a switched On/Off output via a 16A rated relay.
This will give the capability to control products without built in pilot wire compatibility (e.g. towel rails, water tank immersion heater, etc.) on a timed basis in conjunction with the rest of the centrally controlled heating system.
The unit will fi t into a standard UK single gang metal back box at least 46mm deep.
Contents
1
3
2
Wiring Accessories (not supplied)
The pilot wire interface unit is designed to be housed in a standard single gang (UK wiring accessory) fl ush mounted back box at least 46mm deep. See opposite a typical example from the MK range.
1. Fixing Kit
2. Pilot Wire Interface Unit
3. Fascia Plate (with cable bracket attached).
Product Ref: 877 ZIC 1 gang 46mm deep (FLUSH)
Dimensions: 1 gang: 75 x 75mm
Fixing Centres: 1 gang: 60.3mm
Knockouts: 877: 1 x 25mm & 9 x 20mm
BS.4662: 1970
Wiring Schematic
L N E
Use 3 core fl ex (multistrand) cable (max.wire size 2.5mm²)
Pilot Wire Inter­face RXPWIF
Appliance
Switched Fused
Spur
Pilot Wire
Technical Specifi cation
Power Supply - 230V AC, ±10%, 50HzFunctioning Temperature : -25°C - 70°CStorage Temperature : 5°C - 50°CConsumption - 0.3VAMax. wire size 2.5mm²Min. wire size 0.2mm²Max. switching load : 3kW
Operating Modes
Controller (RXPW4) Mode Appliance Function (when linked via RXPWIF)
Comfort (ON) On (Operates an appliance thermostat if
Background (Setback) OFF
OFF OFF
Frost Protection OFF
applicable)
Pilot Wire Connection
Dimplex Wall Mounted Programmers use a pilot wire to carry a signal from the programmer to a compatible appliance or pilot wire interface unit.
4 zone wall mounted pilot wire controller ­RXPW4
Installation and Electrical Connection
WARNING - THIS PRODUCT MUST BE
INSTALLED BY A COMPETENT PERSON OR
ELECTRICIAN. ENSURE THAT THE MAINS
AND PILOT WIRE SUPPLIES TO THE UNIT
ARE ISOLATED PRIOR TO INSTALLATION.
The product is designed to be installed in a standard UK single gang recessed wiring accessory back box - 46mm deep.
The interface unit should be wired as per the diagram above. A SUITABLE MEANS OF ISOLATION FOR BOTH THE APPLIANCE AND THE PILOT WIRE MUST BE PROVIDED IN ACCORDANCE WITH THE CURRENT I.E.E. WIRING REGULATIONS. The unit can be installed to accommodate mains cable runs to the back box from either above or below (see below). The orientation of the back box must be such that the earthing terminal is always towards the end that the mains cable enters. This is required to allow easy fi tment of the pilot wire interface unit.
The appliance cable can either exit from the front via a knockout (to be created by the installer) in the fascia plate or from the rear of the back box.
The mains cable between the Pilot Wire Interface Unit and the switched fused spur should be sheathed fl exible cable (Max. cable size 2.5mm²).
IMPORTANT - Care should be taken with the installation of the pilot wire(s) as when switching to background (set back) they become energised at 240V although only at a current of less than 100mA. 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 appliance. (See wiring shematic above).
Where pilot wires are installed separately from the appliance fi nal sub-circuit they should be protected, double insulated and carry their own integral earth continuity conductor.The earth conductor should be connected to the Pilot Wire Interface at either ‘E’ ports on the green connector block (see photo 3).
Mains Cable run (in wall) from below.
Mains Cable run (in wall) from above.
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