Honeywell evohome Applications Manual page 13

Application description
This application shows when the HR80 integrated room sensor should be used or, alternatively, the DT92 remote sensor.
The precise room temperature measurement requires air flow through the HR80 room sensor which is not always possible,
particularly if the radiators are faced with e.g. wood, which causes an imprecise temperature measurement (see examples
in zone 1 and zone 2). Therefore, in zone 1 the internal sensor from the evotouch controller is used to measure the room
temperature. For zone 2 the DT92 room unit is used which also allows to change the room temperature setpoint remotely
(manual override).
The room temperature from zones 3 – 6 is measured directly by each HR80.
Up to 8 zones can be controlled individually with the radiator controller HR80 in combination with remote units DT92,
HCW82 or HCF82.
Options
• Heat demand
The evotouch controller calculates the heat demand and communicates it to the boiler relay BDR91 / HC60NG or
OPENTHERM-Bridge which control the boiler.
• Outdoor sensor
The HB85 outdoor sensor measures the outside temperature. It must be installed if data is required.
Steps to do
f Activate the internal room sensor of the
f Bind the evotouch controller to each HR80's integrated room sensor individually
for each zone 3 – 6.
evotouch controller to each HR80's actuator individually for each zone 1 – 6.
f Bind the
evotouch controller to the DT92 room unit for zone 2.
f Bind the
evotouch controller to the BDR91 relay module / OPENTHERM-Bridge
f Optional: Bind the
for boiler feedback.
f Optional: Bind the evotouch controller to the HB85 sensor for outdoor temperature.
f Check RF communication for each sensor and actuator individually.
Application Manual
evotouch controller for zone 1. See section 4.2
See section 4.3.1
See section 4.3.2
See section 4.8
See section 4.5
See section 4.10
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