Horstmann CentaurPlus ZW Installation Instructions Manual page 8

Instructions for pairing the HRT4-ZW room thermostat
with the CentaurPlus ZW
These devices use the latest Z-Wave wireless communication technology to give a
reliable wireless link that should not suffer from interference from other nearby devices.
The device comprises a thermostat (the HRT4-ZW) and its receiver (the CentaurPlus
C17-ZW). Pairing the devices on site ensures reliable communication.
Follow these steps to ensure that the HRT4-ZW thermostat will communicate
satisfactorily with its receiver. This is best carried out with the HRT4-ZW thermostat
held nearby the (powered) CentaurPlus C17-ZW.
Stage 1
1) Set the number 1 DIL switch on the back of the HRT4-ZW
thermostat to the On (Up) position and the display will
change to show the letter 'I'. If the letter 'L' appears, carry out
stage 1A opposite.
2) Power up the CentaurPlus ZW timeswitch.
3) Press the dial on the front of the HRT4-ZW thermostat
once so that the 'I' in the display flashes.
4) Press and hold the 'Boost' and 'Enter' buttons on
the front of the CentaurPlus ZW until an indicator
appears in its display against the radio aerial
symbol.
5) After a few seconds the radio mast symbol
will appear in the display along with the letters IP.
6) Reset the number 1 DIL switch on the back of
the HRT4-ZW to the Off position and the
temperature will appear in the display.
7) Now check the CentaurPlus ZW time control is receiving signals from the thermostat
by turning the time switch to an 'On' setting with the red indicator light lit and turning the
thermostat up and down to make the boiler switch on and off.
N.B. There is a half second delay in switching On and Off on receipt of the
commands. There is no 'click' from the thermostat which is silent in operation but
there will be an audible 'click' from the CentaurPlus ZW when it is 'On' and the
thermostat switches On and Off.
8) When the thermostat is calling for heat a flame symbol will appear in its display.
9) Z Wave communication is now successfully established.
8
Press and hold 'BOOST' and 'ENTER' buttons to
'SIGN ON' or 'PAIR' the HRT4 ZW thermostat