The Salus TC100 is a 16-terminal wiring centre that gives heating installers one tidy place to connect the boiler, pump, motorised valves, room thermostat, cylinder thermostat and programmer. It suits S Plan (two 2-port motorised valves) and Y Plan (one 3-port motorised valve) central heating and hot water systems, with large terminals, cable access points and cable clamps that make the wiring easy to follow, check and fault-find.
The unit is moulded in flame-retardant plastic, measures 230 × 127 × 42 mm and runs from a 230 V AC supply protected by a 5 A fuse. It comes with installation and wiring instructions that cover popular central heating and hot water layouts.
S & Y Plan
System layouts
5 A
Supply fuse protection
Electrical safety and installation
Isolate the mains supply before working on the TC100. All wiring must be carried out by a competent, qualified installer in line with the current edition of BS 7671. The mains supply to the wiring centre must be protected by a 5 A fuse. Salus accepts no responsibility for faults that result from incorrect wiring.
Make the link connections shown for your system
The wiring diagrams for S Plan and Y Plan show dotted-line link connections that the installer makes between terminals. Follow the diagram for the system you are wiring, as the links differ between S Plan and Y Plan.
Check terminals on boilers, pumps and other makes of control
The Salus wiring guide assumes the installer can identify the power and switching terminals on the boiler, pump and controls from their own documentation. The diagrams show Salus controls, so confirm terminal functions before connecting any other make.
Controls shown in the Salus wiring diagrams
RT200, RT300 and RT500 room thermostats, the CT100 cylinder thermostat, the EP200 programmer and an optional frost thermostat appear in the S Plan and Y Plan layouts.
Key Features
16 Large Terminals
Generous, clearly arranged screw terminals give plenty of space for boiler, pump, valve and thermostat cables and simplify wiring.
S Plan and Y Plan Layouts
Supports S Plan systems with two 2-port motorised valves and Y Plan systems with one 3-port valve, with a wiring diagram for each in the instructions.
Cable Access and Clamps
Dedicated cable access points and cable clamps keep the installation tidy and secure.
Flame-Retardant Plastic
The enclosure is manufactured in flame-retardant plastic for safe, long-term use inside the heating control area.
Simpler Testing and Fault-Finding
Wiring centres are designed to simplify wiring and circuit checking, so each circuit is easy to trace when commissioning or servicing.
Compact Footprint
Only 42 mm deep and 230 × 127 mm across, with adequate internal wiring space for a neat finish.
Technical Specifications
General
Product type
Heating wiring centre
Supply protection
5 A fuse
Material
Flame-retardant plastic
Dimensions (W × H × D)
230 × 127 × 42 mm
Systems and Documentation
System layouts
S Plan (2 × 2-port motorised valves) and Y Plan (1 × 3-port motorised valve)
Applications
Central heating and hot water systems
Documentation
Installation and wiring instructions with S Plan and Y Plan wiring diagrams
Manufacturer
Salus Controls
Frequently Asked Questions
Which heating systems is the TC100 designed for?
It is designed for S Plan systems with two 2-port motorised valves and Y Plan systems with one 3-port motorised valve, controlling central heating and hot water. The instructions include a wiring diagram for each layout.
Is the wiring centre pre-wired?
No. It is a terminal wiring centre that the installer connects to the boiler, pump, valves and controls. The installer also makes the link connections shown as dotted lines in the diagram for the chosen system.
What power supply and fuse does it need?
A 230 V AC mains supply protected by a 5 A fuse, connected to the N, L and SL supply terminals as shown in the wiring diagram.
Can I use controls from other manufacturers?
The diagrams show Salus controls, and the guide expects the installer to identify the power and switching terminals of the boiler, pump and controls from their own documentation. Check each device's terminal functions before connecting it to the TC100.
How big is the TC100?
It measures 230 mm wide, 127 mm high and 42 mm deep, so it fits in most controls cupboards and beside boilers where space is limited.