Wolf CGB-75 Installation And Operating Instructions Manual page 11

Setting
Anti-seizing pump protection
Note:
3062555_201804
4. Control / Function / Operation
Winter mode (positions 2 to 8)
In winter mode, the boiler heats to the temperature selected at the heating water temper-
ature 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
Winter mode is disabled by rotating the heating water temperature selector into posi-
tion . In other words, the boiler will then operate in summer mode. 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 activated by rotating the heating water temperature selector
into position . The illuminated signal ring flashes yellow. After the emissions test mode
has been activated, the boiler will heat with the selected maximum heating output. Any
previous cycle block will be cancelled. The emissions test mode terminates after 15
minutes or when the maximum flow temperature has been exceeded. To reactivate, turn
the heating water temperature selector anti-clockwise and then back into position
In summer mode, the circulation pump operates for approx. 30 seconds after a maxi-
mum idle period of 24 hours.
The number of times the condensing boiler can be started in heating mode is limited
electronically. This limit can be bypassed by pressing the reset button. Then, the boiler
starts immediately, as soon as there is a heating demand.
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