Nashone MTS400 Multifuncion Thermostat and Timer

This controller is maddening.

However it has a high level of funcionality for the price, and when understood, it IS straightforward to program. However, in many instances the manufacturer’s instructionas are not just confusing, but wrong. The most likely use for this controller is to thermostatically control a heater (or cooler) to a schedule, so these instructions are given first.

Basic Controls

Firstly, setting this up is not a 2 minute job, the internal battery is a great feature, so work on this with the unit unplugged sat on the sofa!

• The ON/OFF button only works when no program is active, and switches the output on or off.
• Also the ON/OFF button swtches the unit off completely if you long press (hold down for 3 seconds).
• The SET/MODE button switches between modes, the clock mode and the program mode. It does not matter which is displayed, but the clock mode (weirdly) is required to begin some of the setups described later.
• To access the day/ time settings long press the SET/MODE button.
• To access the program settings press the SET/MODE and RND/+ buttons together.

Setting date and time (and temperature unit)

1. Press SET/MODE to access clock mode.
2. Long press SET/MODE, the day indicator will flash and the SET indicator will apeear.
3. Set the day using the RND/+ or CD/-.
4. Press SET/MODE to save, and the 12Hr/ 24Hr indicator will flash.
5. Set the 12Hr/ 24Hr mode using the RND/+ or CD/-.
6. Press SET/MODE to save, and the hours indicator will flash.
7. Set the hours using the RND/+ or CD/-.
8. Press SET/MODE to save, and the minutes indicator will flash.
9. Set the minutes using the RND/+ or CD/-.
10. Press SET/MODE to save, and the seconds indicator will become zero. Then the temperature units option appears.
11. Set unit using the RND/+ or CD/-.
12. Press SET/MODE to return, the SET indicator will disappear.

Accessing the programs

The programs are as follows:

• Programs 01-20 are basic on/off timers.
• Program 21 is a random on/off timer.
• Program CD is the countdown function.
• Program H1 is the basic heater controller (thermostat).
• Programs H2-H4 are add-on heater timer/ thermostatic controls.
• Program C1 is the basic cooler controller (thermostat).
• Programs C2-C4 are add-on cooler timer/ thermostatic controls.

1. Press any button to wake up, then SET/MODE and RND/+ together; the settings for the first program (01 on) will appear.
2. Press and hold SET/MODE and press RND/+ or CD/- to scoll between the programs.
3. Press SET/MODE to return.

To Setup Thermostatic Heater Control

This is done using modes H1-H4.

Note: it is essential to use H1, this becomes the base temperature. Not using this mode and acivating H2, H3 or H4 will cause the timer to be unresponsive and the unit to target the temperature in the other programs at all times. Once H1 is set, it s possible to add up to 3 different day/ time/ temperature programs.

1. Press SET/MODE to access clock mode.
2. Press SET/MODE and RND/+ together, program 01 on will appear.
3. Press and hold SET/MODE and press RND/+ or CD/- to scoll to H1, it is much quicker to use CD/-. Note the display indicates on & off – as this program has no timer.
4. Long press SET/MODE, the temperature indicator will flash and the SET indicator will appear.
5. Set the temperature using RND/+ or CD/-. To prevent this mode activating the heater, set a very low temperature.
6. Press SET/MODE to save, the SET indicator will disappear.
7. If you just want a thermostat (e.g. for a greenhouse) then this is the only program needed, press SET/MODE again to return.
8. Otherwise, press and hold SET/MODE and press RND/+, program H2 on will appear.
9. Long press SET/MODE, the temperature indicator will flash.
10. Set the temperature using RND/+ or CD/-.
11. Press SET/MODE to save, and the days indicator will flash.
12. Set the day(s) using the RND/+ or CD/-, the options are Mon-Sun seperately, Mon-Fri, Mon-Sat, Sat-Sun or Mon-Sun (every day).
13. Press SET/MODE to save, and the hours indicator will flash.
14. Set the hours using RND/+ or CD/-.
15. Press SET/MODE to save, and the minutes indicator will flash.
16. Set the minutes using RND/+ or CD/-.
17. Press SET/MODE to save, and the seconds indicator will flash.
18. Press SET/MODE to zero the seconds indicator.
19. The H2 off settings will now appear, first and confusingly, the days indicator will flash – this is pointless, as it is tied to H2 on.
20. Press SET/MODE to save, and the hours indicator will flash.
21. Set the hours using RND/+ or CD/-.
22. Press SET/MODE to save, and the minutes indicator will flash.
23. Set the minutes using RND/+ or CD/-.
24. Press SET/MODE to save, and the seconds indicator will flash.
25. Press SET/MODE to zero the seconds indicator, the SET indicator will disappear.
26. If you do not require H3 or H4, press SET/MODE again to return.
27. Otherwise, press and hold SET/MODE and press RND/+, program H3 on will appear.
28. Repeat steps 10-26 for programs H3 and H4 as required.

To Setup Thermostatic Cooler Control

This is done exactly as with the heater functions, but use modes C1-C4.

Setting up timers (programs 1-20)

1. Press SET/MODE to access clock mode.
2. Press SET/MODE and RND/+ together, program 01 on will appear. To set a simple timer, use this program.
3. Long press SET/MODE, the day indicator will flash and the SET indicator will appear.
4. Set the day using RND/+ or CD/-.
5. Press SET/MODE to save, and the hours indicator will flash.
6. Set the hours using RND/+ or CD/-.
7. Press SET/MODE to save, and the minutes indicator will flash.
8. Set the minutes using RND/+ or CD/-.
9. Press SET/MODE to save, and the seconds indicator will flash.
10. Press SET/MODE to zero the seconds indicator, the SET indicator will disappear.
11. Long press SET/MODE, the 01 off settings will now appear, first again confusingly, the days indicator will flash – this is pointless, as it is tied to 01 on.
12. Repeat steps 4-10 to set 01 off.
13. If no further timers are required, press SET/MODE again to return.
14. Otherwise, press and hold SET/MODE and press RND/+, program 02 on will appear.
15. Repeat steps 4-12 to set program 02, repeat as required upto 20.
16. Press SET/MODE to return.

Using the random function

Note: the random function overrides other programmed functions. The random function can be used simply by pressing the RND/+ button IF program 21 is active.

Program 21 is set as described below.
1. Press SET/MODE to access clock mode.
2. Press SET/MODE and RND/+ together, program 01 on will appear.
3. Press and hold SET/MODE and press RND/+ or CD/- to scoll to 21, it is much quicker to use CD/-.
4. Long press SET/MODE, the day indicator will flash.
5. Set the day using RND/+ or CD/-.
6. Press SET/MODE to save, and the hours indicator will flash.
7. Set the hours using RND/+ or CD/-.
8. Press SET/MODE to save, and the minutes indicator will flash.
9. Set the minutes using RND/+ or CD/-.
10. Press SET/MODE to save, and the seconds indicator will flash.
11. Press SET/MODE to zero the seconds indicator, the 21 off settings will now appear, first again confusingly, the days indicator will flash – this is pointless, as it is tied to 21 on.
12. Repeat steps 5-11 to set 21 off.
13. Press SET/MODE again to return.
14. Press RND/+ once to activate short random mode (short intervals in an infinite loop).
15. OR press RND/+ a second time to access long random mode (long intervals in an infinite loop).
16. OR press RND/+ a third time to activate program 21.
17. To deactivate the random function press RND/+ again.

Using the countdown function

Note: the countdown will not function if random, heating or cooling timers are active. The countdown function can be used simply by pressing the CD/- button IF the CD program is active.

1. Press SET/MODE to access clock mode.
2. Press SET/MODE and RND/+ together, program 01 on will appear.
3. Press and hold SET/MODE and press RND/+ or CD/- to scoll to CD, it is much quicker to use CD/-.
4. Long press SET/MODE, the ON or OFF indicator will flash and the SET indicator will appear.
5. Select ON or OFF day using RND/+ or CD/-.
   ON switches on on activation, and off after the set time.
   OFF switches off on activation and on after the set time!!!
6. Press SET/MODE to save, and the hours indicator will flash.
7. Set the hours using RND/+ or CD/-.
8. Press SET/MODE to save, and the minutes indicator will flash.
9. Set the minutes using RND/+ or CD/-.
10. Press SET/MODE to save, and the seconds indicator will flash.
11. Press SET/MODE to zero the seconds indicator, the SET indicator will disappear.
12. Press SET/MODE again to return.
13. Press CD/- to activate countdown mode, press again to deactivate the countdown.

Enabling/ diabling programs

Any program can be deactivated by pressing SET/MODE and ON/OFF together in SET mode (described above). A cross appears on the right.