OPERATING
YOUR
PROGRAMMER
For
normal operation
the
TIME
SET
selector
must be in the
AUTO
position.
Red indicator lamps show when
the
Heating
or Hot Water
is
switched
ON.
The two lower selectors are used to control
your Heating and Hot Water
as
follows:
HEATING
SELECTOR
OFF
The heating will remain
OFF
perma-
nently.
CONT
The healing will remain
ON
perma-
nently.
TWICE
The
heating will be swilched
ON
and
OFF
automatically at
the
programme
times.
ONCE
The heating will be switched
ON
automatically after the first pro-
gramme
ON
time and
OFF
at
the
last
OFF
lime. The first
OFF
and second
ON
times will be ignored.
HOT
WATER
SELECTOR
The
HOT
WATER
selector operates
in
the
same manner
as
described above for the
Heating.
DISPOSAL CAUTION
CHANGE
The
two
CHANGE
buttons switch the output
ON
or
OFF
(without altering the programme}
when the
TIME
SET selector is in
the
AUTO
position and the
HEATING
and/or
HOT
WATER
selectors are set to
ONCE
or
TWICE.
When
the
indicator lamp
is
ON,
pressing the
CHANGE
button switches the output
OFF
until the next programme
ON
time.
When
the indicator lamp is
OFF,
pressing the
CHANGE
bullon switches the output
ON
until
the
next programme
OFF
time.
POWER
FAILURE
This unit has a built-in battery
to
ensure
correct operation after a mains power cut.
No
action should be necessary following a
power cut of up lo 7 days. Longer power cuts
may
require you to reprogramme the
unit
This
product
contains
a
lithium
rechargeable
bal!ery.
Please
observe
the
following
safely
precautions
on
disposal:
•
Do
not
dispose ol
in
lire or
water.
•
Do
not
attempt
to
replace
the
battery.
•
Oo·not
tamper
with
the
battery.
Honeywell Control Systems Limited
Arlington Business Park
Bracknell
Berkshire
RG121EB
Tel:
01344 656000
Honeywell
Hel11i11g
Yrm
Ctmtrol
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· Honeywell
ST699
Programmer
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4200B495·001 R4
INTRODUCTION
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AM
c,-=,
,_,
The
ST699
electronic programmer
is
used
to
control the
ON/OFF
timing or your heating
and hot water system.
The
system may also
incorporate a room temperature thermostat
and a hot water cylinder thermostat to switch
the
heating appliance
ON
and
OFF
to
main-
tain
the
correct temperatures.
ST699
INCORPORATES
THE
FOLLOWING
FEATURES:
• 24-hour programme
• Independent Healing and Hot Water
control
• Choice ot two
ON/OFF
programme times
per
day
(TWICE)
or one programme time
per day
(ONCE)
• Built-in programme
• Temporary
ON/OFF
override
(CHANGE)
• Continuous
ON
or
OFF
control
(CONT.
or
OFF)
•
RESET
button
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