User manual

Installation and Setup
22
homexpert
tm
by Honeywell THR870CUK Programmable Thermostat
23
Connect system wiring
Connect wiring from your heating or cooling
equipment to the thermostat as shown at left.
See wiring diagrams on pages 23-24 for details.
1 Make sure electrical power is off.
2 Strip insulation to expose about 6 mm of
bare wire.
3 Use a screwdriver to loosen terminal screw,
insert wire into slot, then tighten screw.
4 Attach cover, then restore electrical power.
Wiring diagrams
24-230V
50-60Hz
THR870C
24-230V
50-60Hz
THR870C
24-230V
50-60Hz
THR870C
24-230V
50-60Hz
THR870C
Combi Boiler Basic Boiler
Pump only Cooling system
1.0-2.5mm²
6mm max.
NOTE: All wiring must comply with IEE
regulations. Keep AC mains supply/load cables
separate from equipment wiring. Refer to boiler
manufacturer’s instructions for information
about wiring connections.