Table Of Contents - Honeywell Y9120H Sundial RF2 Pack 1 User Manual

Contents
CONTROL OF YOUR SYSTEM
General Description of Controls in Your System ...............................................4
The way to use a Timer .....................................................................................4
The way to use a Room Thermostat .................................................................5
Optimisation ......................................................................................................5
GETTING STARTED WITH YOUR ST9120C
Step 1: Setting the Date & Time .......................................................................6
Step 2: Running a Built-in Programme .............................................................7
PROGRAMMING YOUR ST9120C
The Built-in Programmes / Your Personal Programme......................................8
Reviewing the Programme Times .....................................................................9
Modifying the Programme ................................................................................9
Disabling / Enabling Time Periods .................................................................11
OPERATING YOUR ST9120C
Choosing the Operating Mode .......................................................................12
Overriding the Operation Without Changing the Programmes.......................12
The Extra Hour Function .................................................................................13
The Holiday Function ......................................................................................13
Enquiry Mode .................................................................................................14
FINE TUNING YOUR ST9120C
Changing from AM/PM Time Display to the 24 Hour Clock............................15
Changing the Installer Parameters .................................................................15
Optimisation ....................................................................................................17
BOILER SERVICE REMINDER
Countdown to Service / When Service is Due ................................................18
Shut-down .......................................................................................................19
OPERATING YOUR DT92E
Inquiring about the Set Temperature / Adjusting the Set Temperature ...........19
Switching Off / Display Updates / Heating Indicator / Frost Protection ..........20
DT92E OPERATING INDICATORS
Low Battery Indicator / Battery Replacement .................................................21
RF Communications Indicator / Lockout ........................................................21
DT92E ENERGY SAVING ECO FEATURE
Entering ECO Mode and Setting the Energy Saving Time Period ..................22
What Happens in ECO Mode? .......................................................................22
How to Exit ECO Mode ...................................................................................23
FINE TUNING YOUR DT92E
Changing the DT92E Installer Parameters .....................................................23
FAQ AND TROUBLESHOOTING
Frequently Asked Questions ..........................................................................25
Troubleshooting Guide ...................................................................................27
CONFIGURATION & SERVICE DATA
Configuration Data (to be completed by Installer) .........................................30
Boiler & System Service Log ..........................................................................31
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