TP9000  
36
Option 12 - Optimum start control pre-heat setting 
(Option 11 set to 1)
Press + until Option 12 is displayed, use Λ and V 
to select required setting (only active if Option 11 
is set to 1).
The optimum start control must be adjusted to match the building 
energy characteristics. Use the Λ and V keys to selected the required 
pre-heat period. The table below suggests typical settings.
If the building fails to reach temperature on time, increase the setting 
by 15 minute steps each day until the correct setting is found.
If the building reaches temperature ahead of time, decrease the 
setting by 15 minute steps each day until the correct setting is found.
0:15
15 mins, warm air systems, well insulated building.
0:30
30 mins, warm air systems, well insulated building.
0:45
45 mins, warm air system poorly insulated building.
1:00
60 mins, radiator system, light weight well insulated building. 
(Factory setting)
1:15
75 mins, radiator system, light weight medium insulation.
1:30
90 mins, radiator system, medium weight poorly insulation.
1:45
105 mins, radiator system, heavy weight building, well insulated.
2:00
120 mins, radiator system, heavy weight building, poorly insulated.
Option 13 - Optimum start control/Delayed start event setting
(Option 11 set to 1 or 2)
The Optimum start or delayed start control can 
be applied to event 1 only or to each event of the 
day which requires a higher temperature than the 
previous event. Press + until Option 13 is displayed, 
use Λ and V to select required setting (only active if 
Option 11 is set to 1 or 2).
Setting 0 Applies only to fi rst event of day. (Factory setting)
Setting 1 Applies to each event of the day that requires a higher 
temperature compared to previous event.