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Installation and Setup
20
homexpert
tm
by Honeywell THR872CUK Wireless Programmable Thermostat
21
System installation
Heating/cooling systems
Relay box
Wireless
thermostat
Installation procedure
1 Install relay box
2 Connect system wiring
3 Activate batteries and install
wireless thermostat
4 Setup and test system operation
System
wiring
Install relay box
The relay box is wired directly to your heating
or cooling equipment. The thermostat
communicates with the relay box using a
wireless RF signal to control the system. Do not
install near metal objects or electronic devices
(TV, sound system, PC, etc.).
1 Make sure electrical power is off.
2 Use a screwdriver to release latch and
remove relay box cover.
3 Mount wall bracket as shown at left. Install
at least 30 cm from any metal objects such
as metal wall boxes and metal equipment
enclosures.
4 Connect system wiring as shown on pages
22-23, then replace relay box cover.
NOTE: If you are not experienced in equipment installation, we recommend that these
procedures be done by a professional installer.
DISCONNECT ELECTRIC POWER BEFORE INSTALLATION: Can cause electrical shock or
equipment damage.
30 metres max. distance