Honeywell ST9120C Manual
Honeywell ST9120C instructions
Honeywell ST9120C Installation Manual
Contents
CONTROL OF YOUR SYSTEM
General Description of Controls in Your System ………………………………………..4
The way to use a Timer ………………………………………………………………………….4
Your Cylinder Thermostat ………………………………………………………………………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 ST9120CChoosing 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 ST9120CChanging from AM/PM Time Display to the 24 Hour Clock……………………….15
Changing the Installer Parameters ………………………………………………………..15
BOILER SERVICE REMINDERCountdown to Service / When Service is Due …………………………………………18 Shut-down ………………………………………………………………………………………….19
OPERATING YOUR CS92A HOT WATER THERMOSTATBasic Operation ………………………………………………………………………………….19
Battery Replacement …………………………………………………………………………..19
Error Indications …………………………………………………………………………………20
FAQ AND TROUBLESHOOTINGFrequently Asked Questions ………………………………………………………………..21
Troubleshooting Guide ………………………………………………………………………..23
CONFIGURATION & SERVICE DATA (to be completed by Installer) ……………..26
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