JG Speedfit 8 Zone Wiring Centre

All the wired controls on a JG underfloor heating system meet at the JG Speedfit 8 Zone Wiring Centre. It is a 230V unit with room for up to eight room thermostats and a hot water timer, and it brings them together with the pump, actuators and boiler switching.

What the JG Speedfit 8 zone wiring centre handles

On a multi-zone job, wiring each thermostat, actuator and the boiler separately gets messy fast. A wiring centre gives every zone its own set of terminals in one place, so the installation is neat and easy to fault find later. It covers underfloor heating, radiators and hot water control, which suits mixed systems where some rooms have radiators and others are on the floor.

• 230V wired wiring centre
• Up to 8 thermostats
• Connection for a hot water timer
• For underfloor heating, radiators and hot water

Mount it near the manifold, where actuator cables can reach without joins. Label each zone as you wire it, and keep a copy of the layout with the system paperwork. All mains wiring must be done by a competent person and to current wiring regulations. Isolate the supply before opening the cover. Thermostats and other parts are in our underfloor heating section.

Where to buy a wiring centre in Glasgow

The 8 zone wiring centre is sold at Plumb Parts, 555 South Street, Glasgow G14 0QX. Collection Mon-Fri 8am-5pm and Sat-Sun 8am-1pm. Website orders for it are taken too.

Specification

• Brand: JG Speedfit
• Range: JG Speedfit Underfloor Heating controls
• Maker code: JGWC
• Connection: 230V wired terminals
• Suitable for: Up to 8 thermostats plus a hot water timer, on underfloor heating, radiators and hot water
• Guarantee: 50 years with JG Speedfit barrier pipe

Common Questions

What is a wiring centre? It’s the control box that every room thermostat is wired back to. It then switches the zone actuators, the pump and the boiler so each zone heats when it should.

Do I need a wiring centre for underfloor heating? On a zoned wet underfloor system, a wiring centre is what links the room stats to the actuators, pump and boiler. This one takes up to eight room thermostats plus a hot water timer.

How do you wire underfloor heating controls? Each thermostat is cabled back to the wiring centre, which is fed from a fused spur and mounted near the manifold. Follow the JG wiring diagram for the boiler and pump, and have a competent person do the mains work.

Does the wiring centre need its own circuit? It should be fed from a fused spur. Because it’s 230V mains work, it should be wired in by someone competent in electrics.

Can it run radiators as well as underfloor heating? Yes, it’s designed to handle underfloor heating, radiators and hot water, so a home with underfloor downstairs and radiators upstairs can run from the one box.

Should I choose the wired or wireless version? Go for wired if you can get cable to each room before plastering, as on new builds and big renovations. If running cable isn’t practical, the wireless 8 zone version does the same job by radio.

Datasheets

• JG Speedfit Aura 230v 8 Zone Wiring Centre Wiring Diagram and Instructions (PDF)