18
50022737-005 A
CONFIGURATION & SERVICE DATA
Configurable 
Features
Options Installer Configured 
(tick appropriate box)
24hr or am/pm clock 
display
am/pm display
24hr display
Display backlight 
operation
Off
On if button pressed
On continuously
Automatic time 
change
Enabled
Disabled
1-day or 5/2-day or 
7-day operation
1-day operation
5/2-day operation
7-day operation
Number of ON/OFFs 
per day
2 on/offs per day
3 on/offs per day
Default programme A = standard
b = at home
C = economy
Set as 
Mini-Programmer *
No
Yes
Configuration Data (to be completed by Installer)
The table below is for the Installer to complete to indicate how your ST9400C has 
been configured.
* 
Note:  It  is  recommended  that  gravity  circulation  hot  water  systems 
are  fitted  with  a  suitable  hot  water  control  valve  as  shown  in  the 
Honeywell  Sundial  C  Plan  system  (see  ST9400A/ST9400C  Installation 
Instruction  sheet).  If  so,  then  there  is  no  need  to  set  the  ST9400C  as  a 
Mini-Programmer.