Specifications

8.34
Change
ol
thermometer
Pull
the
temperature
sensor
(U3)
out
of
the
sensor
tube.
Press
the
2
tongues
into
the
thermometer
and
pull
it out
to
the
front side'
Reassemble
in
reverse
order.
t
)
b
8.35
Change
of
manometer
Disconnect
the
tubing
nut
(U1)
ot
the control
line and
remove
the
fixing
nut
(U2).
Reassemble
in
reverse
order.
8.36
Change
ol system
bYPass
Close
off
flow
and
return
service
cocks
and
^ drain
boiler
as
outlined
in
8.1.2'
t
Unscrew
the
2 union
nuts
(V)
and
remove
valve.
Unscrew
the
3 screws
holding
the
top
ol
the
valve.
Renew
diaphragm
or
spring
as
necessary.
Do
not
move
spring
adjusting
nut'
Reassemble
in
reverse
order,
using
new
wasners.
ffi\
v
A
w
S