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1. General Information
• These instructions should be read carefully in full before installation, and retained for
further reference and maintenance.
• Wiring diagrams are supplied for the two most popular, S-plan and Y-plan.
• This guide assumes that the installer can identify the required leads from the boiler, pump
and other controls.
• This wiring centre is suitable for all types of heating systems.
2. Safety
• Before installation or maintenance, ensure the mains supply to the wiring centre box is
switched off and the circuit supply fuses are removed or the circuit breaker turned off.
• It is recommended that a qualified electrician is consulted or used for the installation
of this wiring centre box and installed in accordance with the current IEE wiring and
Building Regulations.
• Check that the total load on the circuit including when this wiring centre box is fitted
does not exceed the rating of the circuit cable, fuse or circuit breaker.
3. Technical Specifications
• 230V AC 50 Hz
• This unit is of class II construction
• Current Rating:
10(2)A
• Installation Type:
Surface mount with wall fixing kit supplied
• Operating Temperature:
0°C to 40°C
• Flame Retardant Rating:
V1
• CE Compliant
• Dimensions (H x W x D):
90 x 135mm x 30mm
Cover retaining screws
Flame retardant plastic cover and case
TRT049N Front View
