SECURE 425 Coronet Electro Mechanical Timeswitch Instruction Manual
- June 6, 2024
- SECURE
Table of Contents
425 Coronet Electro-mechanical Timeswitch
User Operating Instructions
The 425 Coronet time switch is a single circuit central heating time switchable to switch ON and OFF twice every 24 hours. An advance switch is provided to make temporary overrides to the ON or OFF periods and a selector switch gives a further choice of programmes.
The 425 Coronet Timeswitch
The simple instructions contained in this user guide are designed to help with the programming and operation of this unit.
Setting The Time Of Day
The dial rotates clockwise and makes one complete revolution every 24 hours.
To set the correct time turn the dial clockwise by hand (using the levers on the clock face) until the correct time of day is against the line marked TIME. (See diagram opposite).
Setting The On/Off Times
The four setting tappets, colored red and blue, are moved around the circumference of the dial to set your required ON and OFF times.
These tappets work in pairs to switch the system ON and OFF.
- No 1 (red) 1st ON and No 2 (blue) 1st OFF
- No 3 (red) 2nd ON and No 4 (blue) 2nd OFF
The tappets may be moved in either direction. (See diagram)
Please ensure that you press and hold down any tappet that is to be moved,
release the tappet only once the correct time position has been reached.
Tappets cannot be moved across the Time line. The position of the dial may
have to be altered to set the initial ON/OFF time.
Please ensure the clock is set to the correct current time after altering the
ON/OFF settings.
Lightly Press Down On No 1 Tappet.
Move Tappet Until Reaching The Desired On Time| Lightly Press Down On No 2
Tappet.
Move Tappet Until Reaching The Desired Off Time| Repeat Previous Instructions
For 2nd n/Off Settings.
Using Tappets 3 And 4| Move The Program Selection Switch To The Required
Position
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Manual Overrides
Advance Control
The advance control allows you to start an ON or OFF period early without
altering the tappet, time, or program selection settings.
Moving the advance control to the extreme right brings forward the operation
of the next tappet. The switch state indicator then changes to the appropriate
number. When the next tappet passes the timeline, normal operation returns.
When the program selector is in the All Day position, tappets 2 and 3 do not
operate. If you require switching the system OFF for the day, after the
morning switch ON, you will need to step forward with the advance switch until
the number 4 is shown in the switch state indicator.
If you wish to switch ON and OFF by hand or vice versa, before the next
automatic switching operation, the advance control must be operated until the
switch state indicator is returned to the correct automatic sequence.
EXAMPLE: If you turn the system ON again after the preset night shut downtime when you turn it OFF before retiring make sure to operate the advance switch again until the number 4 is displayed in the switch state indicator so that the red tappet number 1 will switch the system ON in the morning.
DO NOT OPERATE THE ADVANCE SWITCH WHEN A TAPPET IS AGAINST THE TIMELINE.
Switch State Indicator
Located above the ADVANCE switch, the switch state indicator shows you the
number of the tappet which operated last.
Eg. If the system was switched ON by tappet 1 at 7:00 am and it is now 9:00
am, providing that no further tappets operations have past, a number 1 should
show in the aperture.
If the switch state indicator does not agree with the program set on the dial,
rotate the dial one whole turn and reset to the correct time of day. This will
ensure that the switch state corresponds to the last tappet operation.
Program Override Facilities
The following programme options are available:
24 Hrs – The system will be permanently ON
All Day – The system will switch ON from tappet 1 (red) and OFF at tappet
4 (blue) Tappets 2 and 3 are ignored
Twice – The system switches ON at tappet 1 (red), OFF at tappet 2 (blue),
ON at tappet 3 (red), and OFF at tappet 4 (blue)
Off – The timer continues to operate but the system will be permanently
OFF
What is a programmer?
… an explanation for householders.
Programmers allow you to set ‘On’ and ‘Off’ time periods. Some models switch
the central heating and domestic hot water on and off at the same time; while
others allow the domestic hot water and heating to come on and go off at
different times.
Set the ‘On’ and ‘Off’ time periods to suit your own lifestyle. On some
programmers you must also set whether you want the heating and hot water to
run continuously, run under the chosen ‘On’ and ‘Off’ heating periods, or be
permanently off.
The time on the programmer must be correct. Some types have to be adjusted in
Spring and Autumn at the changes between Greenwich Mean Time and British
Summer Time. You may be able to temporarily adjust the heating program, for
example, ‘Override’, ‘Advance’ or ‘Boost’. These are explained in the
manufacturer’s instructions.
The heating will not work if the room thermostat has switched the heating off. And, if you have a hot-water cylinder, the water heating will not work if the cylinder thermostat detects that the hot water has reached the correct temperature.
The above explanation also applies to your time switch, which operates as a single circuit programmer.
Service and Repair
This programmer is NOT user-serviceable. Please do not dismantle the unit. In the event of a fault developing, please contact a local heating engineer or a qualified electrician
Secure Meters (UK) Limited
South Bristol Business Park,
Roman Farm Road, Bristol BS4 1UP, UK
t: +44 117 978 8700 f: +44 117 978 8701
e: [email protected]
www.Securemeters.com Part Number P83664 Issue
6
Documents / Resources
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SECURE 425 Coronet Electro Mechanical
Timeswitch
[pdf] Instruction Manual
425, Coronet Electro Mechanical Timeswitch, 425 Coronet Electro Mechanical
Timeswitch, Mechanical Timeswitch, Timeswitch
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