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The temperature of the water can be monitored by pressing enter twice after 

turning the unit on. 

To control whether the heater is on or off while pumping, press and 

hold down and enter to go into the set up menu. Press enter until heater 

message is displayed. 

Press up or down to change between on or off. Off will prevent the heater

 

from heating the water whilst the controller is on. Press enter again to 

turn frost 

protection on and off, using the up or down buttons. 

Press enter again to set the temperature at which the frost protection 

turns on. Adjust value with up and down, e.g. to set heater to come on at 2

 

degrees centigrade set controller to 2. Note: if you set Ftp too high your 

heater may turn on when you do not need it. ie when there is no danger of 

the water freezing. 

Press enter again to adjust the speed of the pump recirculation when frost 

protection is working. Set pump flow rate using up and down. Note: for 

Webasto heaters, set flow to 10. Other heaters may require a higher flow. Set flow 

to the minimum possible. Faster flow will discharge your battery more quickly.

 

Once you have reached the last configuration press enter to set. 

Operation 

V11 Hot Water

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