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ST9420C Controls Layout
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2
3
DT92E Controls Layout
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5
6
7
8
1 ECO Mode Active
1
24
HOT WATER
EXTRA HOUR
OVERRIDE
22
NEXT
DAY
9
10
11
COPY
DAY
DAY/TIME
OK
20
3
4
HOT WATER
13
5
12
6
11
7
10
8
12
9
HEATING
HOLIDAY
4 Heating Demand Indicator
5 Setpoint Change Buttons
17
16
15
14
13
1 Hot Water ‘ON’ period indicator
13 Heating Operating Mode Indicator
2 Time Display
14 Heating Operating Mode Button
3 LoT™ Technology Display
15 OK/Next Button
4 Programme Time Markers
16 Clock – and + Buttons
5 Day of Week Indicator
17 Hot Water Operating Mode Button
6 RF Symbol
18 Hot Water Operating Mode Indicator
7 Heating ‘ON’ period indicator
19 Holiday Button
8 Heating Extra Hour Button
20 Copy Day Button
9 Heating Indicator Lamp
21 Next Day Button
10 Heating Override Button
22 Hot Water Override Button
11 Boiler Status Indicator
23 Hot Water Indicator Lamp
12 Slider
24 Hot Water Extra Hour Button
Keep this document in a Home Information Pack
DT92E Configuration
Measurement offset
Upper setpoint limit
Lower setpoint limit
Energy saving ECO setpoint
-3.0°C to 0 to 3.0°C
21 to 35°C
5 to 21°C
5 to 35°C
Factory Installer configured
setting (note value)
0
35°C
5°C
18°C
7 OFF/Standby Button
Boiler & System Service Log
9 RF Communications Indicator
The space below can be used to provide a record of boiler & system services and
the names and contact numbers of the Installer and Service Personnel.
10 Battery Low Indicator
13 Temperature Display
18
Options
8 OFF/Standby Indicator
12 Setpoint Indicator
ST9420C
Configurable Features
6 ECO Button
11 Fault Indicator
RUN
NEXT
19
2 Frost Protect Indicator
3 ECO Countdown Indicator
OVERRIDE
21
2
HEATING
EXTRA HOUR
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CONFIGURATION & SERVICE DATA
This information is important for a Home Information Pack.
Service/Installation
Date
Installation/Service
Engineer
Telephone Number /
Contact Details
CS92A Controls Layout
Sensor element
Transceiver
Green light
(under button)
Button
Red light
(under button)
This product and its associated documentation and packaging are protected by various intellectual
property rights belonging to Honeywell Inc. and its subsidiaries and existing under the laws of the UK
and other countries. These intellectual and property rights may include patent applications, registered
designs, unregistered designs, registered trade marks, unregistered trade marks and copyrights.
Honeywell reserves the right to modify this document, product and functionality without notice. This
document replaces any previously issued instructions and is only applicable to the product(s) described.
This product has been designed for applications as described within this document. For use outside of
the scope as described herein, refer to Honeywell for guidance. Honeywell cannot be held responsible
for misapplication of the product(s) described within this document.
Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell
Technologies Sàrl, ACS-ECC EMEA, Z.A. La Pièce 16, 1180 Rolle, Switzerland by its Authorised
Representative Honeywell Inc.
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