Bosch Worcester 240 Combi OF Installation And Servicing Instructions page 12

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Fig. 1 0. Room thermostat
connections.
Remove link .
1 2 3 4 5
Terminal X4 on
main driver board.
Honeywell room thermostat
T60608 (or similar.)
Fig. 11 . Frost thermostat
connections. Terminal X4 on
main driver board.
Honeywell frost thermostat
T 41 60A (or similar.)