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Installation and Setup
22
homexpert
tm
by Honeywell THR872CUK Wireless Programmable Thermostat
23
Connect system wiring
Connect wiring from your heating or cooling
equipment to the relay box as shown at left. See
wiring diagrams on page 23 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 Replace relay box cover, then restore
electrical power.
1.5 - 2.5 mm
2
6 mm 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.
Wiring diagrams
Burner (direct control) Combi boiler
Zone valve Cooling device
N L L
Wiring terminals
A B C
Terminal screws