©
EUROHEAT
DISTRIBUTORS (H.B.S) LTD. June 2009
E & OE Instructions Part Number IN1113 Ed. E
26
If fitted, remove the two TTB leads from the interrupter block. Then unscrew the interrupter block from the
gas valve.
Note:
The interrupter block, if fitted, will not be needed as the replacement thermocouple fits directly into the
back of the gas valve. Once removed the TTB interrupter, if fitted, should also be discarded as the new
thermocouple incorporates its own TTB interrupter.
Interrupter block and TTB with its leads
will need to be removed and discarded.
Using a 10mm spanner loosen the thermocouple retaining nut
underneath the pilot assembly and withdraw the thermocouple
sensor. Remove and retain the securing nut from the thermocouple
as this will be required to fit the new thermocouple.
TTB interrupter
