N
COM
NC
NO
N
L
L
Fig. 7
Receiver Wiring Diagram
This unit is double insulated, and hence does
not need connection to the earth. If earth
continuity is required, please use the earth
terminal on the wall plate, (see Fig. 4).
To reinstall the unit on the wall plate first ensure
the wall plate retaining screws are loosened
enough to clear the TRT037 receiver body then
engage the top of the TRT037 receiver onto the
wall plate retaining tabs (see Fig. 4), and push
firmly downwards and then inwards. There will
be some resistance from the terminals. Once in
place, secure with the retaining screws.
Finally check that the system wiring is complete
and correct.
4. Operation
Initially it is important to get the two parts
(transmitter and receiver) talking to each other.
This is best carried out by two people, one at each
of the separate locations.
Press reset on the transmitter and at the receiver
connect the mains supply to the unit. Both indicator
lights (learn/manual and output on the receiver) will
come on for around 3 seconds and then go out. Press
and hold the learn button on the receiver for around
10 seconds until the blue learn/manual light starts
flashing.
At the transmitter press and hold the select and
buttons until the flashing blue learn/manual light on
the receiver goes out. The transmitter and receiver
are now communicating. This can be confirmed by
carrying out the following:- at the transmitter press
the + button until the set temperature (identified by
momentarily pressing the + or - button) is higher
than the room temperature (normally displayed).
After a short delay the output on light on the
receiver comes on.
Now press the - button at the transmitter until the
set temperature is lower than the room temperature
and after a short delay the output light will turn off.
This proves the communication is fully functional.
There is a manual facility available at the receiver.
If the auto/manual (A/M) button is pressed the blue
learn/manual light will come on indicating the receiv-
er is in manual mode. The receiver output can now
be turned on and off using the learn button.
Programming
Decide whether weekday/weekend (5-2) or individual
(7) day programming is required and move the
appropriate jumper on the rear of the TRT037
transmitter.
The temperature span (difference between on and
off temperatures) can be adjusted between 1ºC and
0.5ºC using a jumper found on the rear of the unit.
Optimum start (switching on earlier on colder
mornings) can also be turned on or off using a
jumper on the rear of the unit.
It is important to make these decisions first,
as after any change of jumper position, reset needs
to be pressed, which will return the unit to default
time and programme.
Pressing any button illuminates the screen
automatically.
During time/date and programme setting if a button
is not pressed within 15 seconds the display will
revert to the start of the sequence.
Setting date and time of day
Open programme access flap and press reset, using a
pen or similar object. All of the screen segments will
show briefly, and then the current room temperature
will be displayed.
To programme the date and time of day, open
programme access flap, and simultaneously press
and hold both the select and set buttons for 3
seconds. The year will flash.
Use the + and - button to set the correct year.
Press select to move on to programming the month
(shown to the left), and then again to programme
the day. Press select again to
programme the hours (am/pm), and again to
programme the minutes (each time using the
+/- button to make the change). Press set to return
to operating mode.
If at any time a button is not pressed for 15
seconds, the unit will return to operating mode.
Programming temperature periods for
7 days option
Notes
1) There are no off periods with this controller.
The programming sequence is:-
Start time, temperature, second start time,
second temperature and so on. Setting
temperature to 10ºC is as close to off as can be
achieved (and for most situations will be off
unless the weather is very cold).
2) If you do not want a higher temperature period
in the middle of the day adjust the temperature
for this period downward to match those of the
proceeding and subsequent period temperatures.
