User guide
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Room thermostats
http://products.ecc.emea.honeywell.com/europe
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Room thermostats
Digital non-programmable thermostat with large LCD display and simple user interface.
For general purpose control of boilers, zone valves, pumps, thermal actuators, electric heaters and fan-
coil units.
• self-learning TPI Fuzzy logic control
• adjustable proportional band
• adjustable on/off time
• frost protection
• setpoint limits
• fail-safe operation
• installer mode
Room thermostat and relay box, with 2-way RF-communication between these units. The thermostat
is non-programmable; it has a large LCD display and simple user interface.
For general purpose control of boilers, zone valves, pumps, thermal actuators, electric heaters and fan-
coil units.
• self-learning TPI Fuzzy logic control
• adjustable proportional band
• adjustable on/off time
• frost protection
• setpoint limits
• fail-safe operation
• installer mode
• transmission and signal strength features
Digital room thermostat, DT90
Approvals CE
Protection class IP30
Switch function/capacity SPDT 24..230 Vac, 8 A resistive, 3 A inductive; potential free
Power source battery powered, 2 x 1,5 V AA Alkaline cells
Battery life minimum 2 years
Terminal max. wire size 2,5 mm
2
Temp. setpoint range 5 ... 35
o
C
Control output signal on/off
Manual operation
functions
-off/standby, -setpoint, -ECO
Heat/Cool manual mode H/C
Product literature
language
multilanguage user guide included in package
Earthing double insulated
Housing (HxWxD) 92 mm; 90 mm; 27 mm
Model
Type
standard
DT90A1008
with ECO button for up to 24h energy-saving setback
DT90E1012
Wireless room thermostat, DT92
Approvals CE
Protection class IP30
Switch function/capacity relay box with SPDT-switch 24..230 Vac, 5 A resistive, 3 A
inductive; potential free
Power source • relay box: 230 V, 1 VA
• thermostat: battery powered, 2 x 1,5 V AA Alkaline cells
Battery life minimum 2 years
Terminal max. wire size 2,5 mm
2
Temp. setpoint range 5 ... 35
o
C
Control output signal on/off