C2 South City Business Centre, Tallaght, Dublin 24.
Phone: (353) 01 4031200
Fax: (353) 01 4137777
|
|
| SystemLex |
 |
|
About SystemLex
|
|
|
SystemLex is a wiring centre which greatly simplifies the attachment of both time and temperature controls to a zoned heating system. SystemLex is pre-configured to automatically fire the boiler(s) only when one or more time/temperature controls call for heat, eliminating the need for a separate boiler clock.
The 'SystemLex Centre' is a pre-configured control Printed Circuit Board, for multi-zone heating systems (up to four heating zones with two boilers as required). It incorporates clearly identified terminals for simple on site connection to all standard ancillary equipment (Valves, Pumps, Boilers, etc.).
The boiler(s) is called into action by the use of a simple patented electronic procedure that serves to concentrate multiple mains command inputs to a single mains command (i.e. Boiler control relay), while isolating each command input from the other and from the output.
|
|
To get further advice about
this topic or talk to an expert please click here
|
The SystemLex has clearly identified wiring terminals for Mains Supply, Clock Connections, Thermostat Links, Pump and Boiler connections and an Auxiliary logic switching facility. It has 46 block connections for easy attachment to heating devices.
The wiring centre has the facility to supply external time control via clocks/stats to four optional zone outputs (e.g. Living area heating, Bedroom area, etc.).
It also encompasses four corresponding mains outputs to drive zone isolation devices (pumps) each with separate terminal indication. (L, N, E.).
In addition, there are two sets of boiler supplies including Permanent Live, Neutral, Earth terminations plus independent boiler voltage free contacts to provide boiler switch live or external controls link opportunity.
Auxiliary logic switching facility
This set of connections may be used if an auxiliary function is to be performed, such as 'Hot Water Priority' or where an additional boiler, pump or valve is required.
There are two sets of 'voltage free' terminals situated at the right hand side of the wiring termination block. They are normally in open circuit position, but if a live source is presented to any of the four auxiliary connexion points, then the 'voltage free' connections make circuit.
They exist to cater for the unexpected control dilemmas that regularly occur during heating installation, and will serve to provide a versatile solution to many otherwise exasperating problems.
|
To get further advice about
this topic or talk to an expert please click here
|
|
Benefits of SystemLex
|
• Simpler system wiring
• Substantial labour and material savings
• Suitable for gas, geothermal, oil and solid-fuel installations
• Works with all forms of heating control, including clocks, stats and programmers
• Simplifies wiring of multiple heat sources
• Simplifies wiring of multiple heating zones
• Extremely safe design
• Pre-fused power supply with independently fused zone provision
• Clearly identified terminals for clock and thermostat connections
• Built-in lights to indicate correct operational status and assist system fault-finding
• Fully complies with the building regulations |
|
|
To get further advice about
this topic or talk to an expert please click here
|
|
| Documents available for download |
Systemlex Datasheet
SystemLex Brochure
|
|
|
)
