Immergas EOLO Star Export Manual page 18

Technical documentation
Programmer clock switch
(OP)
(optional)
Room thermostat (TA)
(external optional)
Modulation coil
(MOD)
STES ed 07/01
Operates on adjustment board, enabling operation of the boiler during
heating at selected times.
If this is mounted singly, connection is made on terminals 6 and 9 of
connector M3 after removing pre-existing jumper P1.
When fitted together with an ambient thermostat (TA) it must be
connected to terminals 6 and 7 of connector M3 after removing the pre-
existing jumper P1.
By means of the adjustment board, this enables operation of the boiler
during heating when room temperature is below that required.
If fitted singly, connection is made to terminals 6 and 9 of connector M3
after removing the pre-existing jumper P1.
If fitted together with clock (OP) it must be connected to terminals 8 and
9 of connector M3 after removing jumper P1.
LOADS
This is powered by the modulation board with variable continuous current.
Permits changing gas pressure to burner.
16
Technical documentation
Double-contact
switch
Double contact
switch
EOLO STAR