7 Day Digital
Time Switch
Model: NTM02
7 Day Digital
Timer Module
Installation & Operating Instructions
NTM02 – 7 Day Digital
Timer Module
Power LED Output LED
Advance
button
1
Programme
button
Reset
button
1. General:
This time switch is a compact and easy to use
digital 7 day timer module. It can control outputs
of up to 16A which makes it suitable for domestic
immersion heaters.
The NTM02 also has volt free contacts,
making it suitable for a wider range of
switching applications.
Programming can be 7 day, 5 + 2, or 24 hour.
Illuminated
screen
Boost
button
Time
button
2. Features:
4 ON/OFF switching programmes, which
can be made to operate over all 7 days
(24 hour operation), 5 weekdays 2 weekend days,
or any individual day (7 day operation).
Advance feature advances to next
programmed operation.
Boost feature provides 1 or 2 hour boost.
Battery back up retains programmes and
clock times during loss of mains.
Option of automatic summer time update (ASCO).
Shortest switching time of 1 minute.
Programme review.
3. Installation:
We recommend that this unit be fitted by a
qualified electrician. Install in accordance
2
to wiring and current building regulations.
Please read the instructions carefully. If in
any doubt contact the Timeguard Helpline.
Important: Switch off mains electricity
before commencing work.
Connect the installation wiring to the terminals,
according to the legend on the back case, or as
stated below.
L Live supply.
N Neutral supply.
1 COM
➝
➝ ➝
2 Normally open.
3 Normally closed.
Note: this device needs to be left to charge for
a minimum of 15 minutes once powered up,
before it will operate.
4. Battery:
The time switch has a factory fitted rechargeable
battery to give clock operation and programme
memory back up during loss of mains supply.
Before programming for the first time, connect the
unit to the mains for at least 15 minutes prior to
pressing the Rst button and programming the unit.
If the display is not visible or very faint, charge for
4 hours prior to pressing Rst and programming.
5. Reset:
The time switch must be reset before programming for
the first time, or after subsequent discharge for more
than 5 days, and following a 4 hour period of charging.
Press Rst using a pointed object, eg: a pencil.
3
The display will show all the segments,
and then clear to show:
Use the Adv/Ovr button to change
between on and off for the automatic
summer time adjustment and
proceed to section 6.
Loading...