20
Classic
Edition
Important
Note:
Steamix
203
has
been
in
production
since
1990
and
there
are
three
production
editions.
The
"
Classic
"
edition
was
manufactured
from
1990
until
1999.
The
"
Millennium
"
edition
was
manufactured
from
1999
until
2003.
The
"
Infinity
"
edition
commenced
manufacturing
in
January
2004
and
is
the
current
production
model.
Please
review
the
Millennium/Infinity
Edition
(page
14)
or
Classic
Edition
(below)
to
identify
the
unit
you
own.
Classic
Identification
1. Locate
the
serial
number
on
the
valve.
Classic
valves
have
the
serial
number
located
on
the
bonnet
assembly
and
begin
with
the
letter
A.
The
serial
numbers
will
range
from
A1000
to
A9000
and
will
have
the
identifier
Rada
203
in
between
a
red
and
blue
arrow
directly
after
the
serial
number.
2. The
Classic
edition
has
the
number
8.065.38.1A
cast
in
raised
digits
on
the
underside
of
the
steam
inlet
(left).
3. The
Classic
edition
has
the
letters
TS
cast
in
raised
letters
on
the
underside
of
the
cold
water
inlet
(right).
Note:
To
ensure
proper
identification
accuracy,
please
confirm
at
least
two
of
the
three
valve
identifiers
before
ordering
spares.
The
Steamix
203
'
s
Classic
design
incorporated
simple
and
rugged
construction
so
that
with
minimal
routine
care
and
operation
within
the
specified
limits
it
should
operate
trouble
free
for
long
periods
of
time.
All
the
mixing
valve
parts
are
field
replaceable
using
standard
tools.
However,
some
internal
components
have
been
superceded
by
parts
kits
common
to
the
Millennium
valve.
Refer
to
substitution
detail
on
pages
21.
Periodic
Inspection
and
Servicing
1. The
following
should
be
performed
at
intervals
of
one
to
six
months
depending
on
usage
and
condition
of
water
(hard,
soft,
acidic
or
alkaline).
a. Evenly
tighten
the
two
gland
plate
set
screws
to
prevent
leakage
through
the
gland
seal.
b. Disassemble
the
mixing
valve
and
clean
internal
parts
with
a
good
quality
commercial
inhibited
de-scaler.
c. Inspect
all
valve
seats
for
wear,
seals
and
gaskets
for
nicks
or
tears
and
check
the
condition
of
the
diaphragm.
d. Lubricate
all
moving
parts
with
a
high
quality
silicone
based
lubricant
only.
Mixing
Valve
Disassembly
Tools
required,
all
available
from
Armstrong
Hot
Water
Group:
1. Socket
36mm
2. Allen
key
4mm
3. Allen
key
5mm
4. Allen
key
6mm
5. Open
end
wrench
24mm
6. Assorted
flat
head
screwdrivers
