Wolf R1 Installation And Operating Instructions Manual page 9

Control unit / Function / Operation
DHW temperature selection (rotary selector)
When boilers are combined with a DHW cylinder, setting 1-9
corresponds to a cylinder temperature of 15-60 °C. The adjustment
made at the DHW temperature selector is ineffective when the
system is used in conjunction with a digital room temperature
controller or a weather-compensated controller. The temperature
will then be selected at the controller (accessory).
Heating water temperature selection (rotary selector)
The setting range 2 - 8 corresponds to a heating water temperature
of 38 to 75 °C (factory setting).
The adjustment at the heating water temperature controller is
ineffective when the system is used in conjunction with a digital
room temperature controller or a weather-compensated controller
(exception: emissions test mode).
The heating water temperature is calculated from the controller
setting.
Winter mode (position 2 to 8)
In winter mode, the boiler heats to the temperature selected at
the heating water temperature controller. According to the pump
operating mode, the circulation pump operates constantly (factory
setting) or only in parallel with the burner activation / run-on
period.
Summer mode
The winter mode is disabled and summer mode is enabled by rotating
the heating water temperature selector into position . Summer
mode (heating OFF) means only DHW heating. Frost protection
for the heating system and pump anti-seizing protection, however,
remain enabled.
Emissions test mode
The emissions test mode is enabled by rotating the heating water
temperature selector to . Any previous burner cycle block will
be cancelled. The signal ring flashes yellow. The heating system
will not operate in weather-compensated mode, when the emission
test has been enabled. Instead it operates at maximum output and
tries to hold a mean constant boiler water temperature of 60 °C.
Only the burner will operate, i.e. the pump is OFF, if the boiler
water temperature is lower than 60 °C. The boiler circuit pump
will be started when the boiler water temperature exceeds 60 °C.
The DHW cylinder primary pump only runs until the set DHW
temperature has been reached. The burner is switched OFF when
the max. boiler water temperature has been reached, if the heating
energy supplied cannot be transferred.
The emissions test mode terminates either after 15 minutes or
automatically, if the maximum flow temperature has been exceeded.
For a repeat activation, turn the heating water temperature selector
first anti-clockwise and then back into position .
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