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Horstmann C-Stat 11-B Installation Instructions Manual page 7

Battery powered programmable room thermostat

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All wiring diagrams are schematic and should be used for guidance only.
INSTALLATION AND CONNECTION OF THE C-STAT MUST BE CARRIED OUT BY A
SUITABLY QUALIFIED PERSON.
WARNING: ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION
TPI Temperature control software
Thermostats using TPI (Time Proportional Integral) control
algorithms will reduce the temperature swing that normally
occurs when using traditional bellows or thermally operated
thermostats. As a consequence, a TPI regulating thermostat will
maintain the comfort level far more efficiently than any
traditional thermostat.
When used with a condensing boiler, the TPI thermostat will help
to save energy as the control algorithm allows the boiler to
operate in condensing mode more consistently compared to
older types of thermostat.
For Gas boilers set the TPI setting to 6 cycles per hour (default
Ÿ
setting)
For Oil boilers set the TPI setting to 3 cycles per hour
Ÿ
For Electric heating set the TPI setting to 12 cycles per hour
Ÿ
To adjust this setting go to the SET UP MENU and select TPI
CYCLES
7

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This manual is also suitable for:

C-stat 17-b