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Installation Guide
2) Installing the CM900 Wireless System
Please follow the illustrations and information below in sequence to install the receiver box and room
thermostat correctly. For applications other than gas boilers, enabling special features and to see what
other system options are available refer to section 4) Installer Mode.
2.1 Installing the Receiver Box
1
The receiver box is a RF device. For
the best performance install in an
open space. Leave at least 30cm
distance from any metal objects
including wall boxes and boiler
housing.
Do not mount on metal wall
boxes.
NOTE: The receiver box contains no user serviceable parts. It should be
opened and installed by qualified installer only.
WARNING: Electrostatic sensitive device! Do not touch the circuit board.
NOTE: All wiring must be in accordance with IEE
regulations
CAUTION:
Observe ambient temperature and current
limits (see the receiver box wiring label)
1.5-2.5mm²
a. Burner (direct control) b. Combi boiler
c. Zone valve d. Cooling device
2 3
7
4
> 7mm Ø
< 7mm Ø
5
a. b.
6
6mm max.