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Installation Instructions
The
CET
B-RF
is
a
battery
powered
cylinder
thermostat
which
measures
cylinder
temperature
using
a
strap-on
temperaturn
sensor
fitted
to
the
cylinder
wall
and
wired
to
the
thermostat
which
is
normany
located
adjacent
to
the
cylinder.
To
avoid
the
need
for
wiring,
communication
between
the
thermostat
and
the
boiler
or
zone
valve
is
achieved
using
secure
RF
wireless
communication.
A
receiver unit,
type
RX-1
is
mounted
adjacent
to
the
boiler
or
the
control
valve
and
responds
to
commands
issued
by
the
wireless
thermostat.
Thermostat
1.
The
produd
should
installed
by
a
competent
person.
lnstallation
must
be
in
accordance
with
the
current
edition
of
the
IEEE
wiring
regulations.
2.
The clamp
on
sensor
should
be
mounted
onto
the
cylinder
wal
at
a
height
equivalent
to
%
the
height
of
the
cylinder.
Care
should
be
taken
to
remove
any
insulation
material
from
the
cylinder
and
to
ensure
that
the
copper
surface
of
the
cylinder
is
clean.
See
diagram
opposite
for
details.
3.
Before
attaching
the
sensor
to
the
cylinder
using
the
strap
provided.
a
2-core
cable
should
be
connected
lo
the
sensor
to
allow
mtercon-
nection
to
the
thermostat
setting
unit.
4.
Apply
the
contact
paste
provided
to
the
part
of
the
sensor
in
contact
with
the
cylinder
and
clamp
the
sensor
to the
cylinder
wall.
A
spacer
piece
is
provided
for
use
with
cylinders
having
thick
insulation.
5.
Mount
the
wallplate
of
the
thermostat
selting
unit
on
lo
a
wall
adjitcen(
to
the
cylinder
and
connect
the
cable
from
the
sensor
to
terminals
2
&
3
of
the wallplate.
A
wiring
diagram
is
shown
below.
6. The
thermostat
setting
unit
can
now
be
mounted onto
the
wallplate
and
secured
using
the
lwo
screws
on
the
bottom
of
the
wallplate.
RX1
Receivar
unit
1.
The
product
should
installed
by
a
competent
person.
lnstallation
must
be
in
accordance
with
the
current
edition
of
the
IEEE
wiring
regulalions.
2.
Mount
the
RX-1
wallplate
onto
the
wan,
cable
access
must
be
from
behind
or
below
the
wallplate.
A
typical
wiring
diagram
showing
the
inlerconnections
between
time
controls
and
zone
valve
is
shown
opposite.
3.
The
RX-1
may
now
be
mounted
onto
the
wanplate
and
secured
using
the
lwo
screws
on
the
bottom
of
the
wallplate.
2
x
AA/LR6/MN1500
alkaline
baneries
30
metres
line
of
sight
mperature
range:
(W.H,
D)
85
x
86
x
42
-zsmd-&*zp
, .
.".Mu*".-
! * ? . - . -
-
. .
.,
-
. - .
,
I
Palrina
Thermostat
to Receiver
1.
Ensure that the power to the R X l is turned on and that the time
controls are calling.
2. Turn the thermostat setting knob to setting 5.
3. Remove the knob from the thermostat a d press and hold for 3
seconds the 'Learn" button which can be found beneath the
setting knob. This forces the thermostat to transmit its unique
identity for up to five minutes. Do not at this stage replace the
setling knob.
4.
Move to the RX receiver and press and hold CH1 and PROG
button until green LED flashes.
5. The thermostat selting dial may now be replaced and the controls
tested in the normal way to ensure lhat boiler, pump and
associated control valve@) operate in the correct sequence.
6. Having tested fhe conbds, the thermostat should be set to the
required temperature, this can be read directly from the LCD
display as
the
selting knob is moved.
B,
1
PROG
CHI
sensor
0
I
Cable Specification
:
minimum cross section 0.5mm2
Important note: Please ensure that when posltmnlng the thermostat settlng unlt that
there are no large metal obstruct~ons, 8 e cyltnder or bo~ler case, s~lttng In between the
thermostat and the RX reccver unit as these will block rad~o comrnunlcatton and
prevent the lherrnostat from operat~ng correclly
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