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www.ephcontrols.com
22˚C
21˚C
20˚C
19˚C
18˚C
17˚C
Temp
Time Minutes
Heating On
Heating Off
Setpoint Temperature
Proportional Bandwidth
20
0
40
60
80
100
TPI Control
Example: Program 1 on the thermostat is 21°C for 06:30am and the room
temperature is 18°C. The thermostat will start the heating at 06:30am and
the room temperature will start to increase then but will switch itself off
before it reaches temperature and allow the room temperature to increase
naturally – this cycle may begin again if the thermostat isn’t reaching
temperature.
