Immersion heater connection for XHW
Docking
29
FIGHTER 1140
Option 3 - FIGHTER 1140 docked to an oil-fired boiler
(floating condensing)
Connection of shunt valve*
-X6:20 closes the shunt valve.
-X6:21 opens the shunt valve.
-X6:22 zero conductor.
* Accessories. The figures show how the connection
should appear when completed. For full information
about the connections see respective “Installation
instructions”
X4
-X6
Boiler sensor (PG)