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Worcester-Bosch Greenstar Comfort II RF - 2014-2022 Manual

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Comfort II RF
Comfort II– 6720810965 (2014/07)
2Comfort II RF
The Comfort II RF comprises a wall mounted twin channel RF programmable room thermostat and a boiler or wall mounted RF
receiver.
2.1 Programmable room thermostat
The wall mounted unit is a twin channel RF Programmable room thermostat. The Programmable room thermostat is for central
heating and hot water control with modulating/enhanced load compensating boiler regulation. Up to six time and temperature
periods can be set to control central heating as well as up to three ON and Off times to control hot water.
This enhance load compensating function enables an intelligent conversation with the boiler to achieve the desired room
temperature in the most efficient way possible. To help save the customer money by burning less fuel, and to minimise room
temperature “overshoot” the boilers burner may stop firing just prior to the desired room temperature being reached. This
behaviour including reduced radiator temperature is perfectly normal. The customer should simply set a temperature on the
thermostat that they are comfortable with and allow the room thermostat and boiler to do their work.
All programming and adjustment is conveniently done from the Programmable room thermostat making the Comfort II RF an
excellent solution if your boiler is not easily accessible.
The unit has user and installer menus to allow the setting of the temperatures, time programs, monitoring of system information,
setting current time/date, daylight savings, maintenance schedules, and pairing the device with the Receiver.
Fig. 1 Programmable room thermostat
1Display Temperature, time, date, CH and HW program selection, fault codes, menu
symbols and operational symbols
2 Hot water program selection ON, OFF, AUTO, ONCE
3 Hot water (HW) program advance button /
user menu selection button
Only functional in AUTO mode. Pressed once, advances the timer to the next
programmed ON or OFF time, pressed again, returns to the current program.
Hold the button down for more than 3 seconds to enter the user menu program
4 Rotary push button knob Turn or press to select or confirm settings
5 Central heating program advance button /
Back button
Only functional in AUTO mode. Pressed once, advances the timer to the next
programmed ON or OFF time, pressed again, returns to the current program.
When in the menu functions this button return to next higher level
6 Cental heating program selection ON, OFF, AUTO
select
advance
select
advance
menu
Comfort II RF
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