SUNRAY SRT8 User manual

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352 Morphett Road, Warradale
T08 8396 5617
E[email protected]
With SRT8 Touch Screen Thermostat/Timer Control
(VerticalMounted)
SunRay Radiant Heating
Operating Instructions
Use the SunRay SRT8 Thermostat/Timer control with:
In-Slab Electric O-Peak Storage Floor Heating
Use in MANUAL mode (no programming required)
In-Screed/Undertile On-Demand Floor Heating,
Hydronic Floor Heating, Radiant Ceiling Heating
Use in AUTO mode with pre-sets OR adjust days/
times (see programming explanations, p2) i.e. 24 hour
‘demand power’ heating systems
Turning your thermostat/heating system on/o
LCD Display
Step 1
You will either have a dedicated oor heating ‘sub-
board’ or the relevant switching accessories will be
located in your Main Switchboard. Ensure the oor
heating ‘Main Switch’ and relevant circuit breakers for
the heated areas are in the ‘on’ (up) position to enable
power to your heating system.
Step 2
In the standby position your thermostat will display
‘OFF’. To turn on the thermostat press the ‘power’
button. When heating is no longer required, press the
‘power’ button to turn o the thermostat. If you have
anelectric In-Slab (o-peak) system, instead of turning
the thermostat o you can simply turn o the oor
heating ‘Main Switch’ at your heating sub-board.
If your thermostat screen is blank (no display) during the
day, there is no power to your thermostat and generally
indicates you have an electric In-Slab ‘o-peak’ oor
heating system which operates during o-peak times
(11pm-7am), therefore the thermostat will only operate/
display during this period.
If you need to adjust temperatures outside o-peak times,
please contact your installer.
Setting the clock and day of the week
This thermostat is tted with a real time clock. It is
essential that the clock time and day are set accurately
ifyou are operating in auto mode (require programmed
events). To set, follow these steps:
1. Touch the time display and the time will start
ashing. Use the up and down arrows to set
thetime. Byholding the arrow down the time
willchangefaster.
2. Press the ‘Next’ button to move the Day setting and
use the up and down arrows to get the correct day.
3. Press ‘Done’ to store and exit.

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Setting the temperature / Temporary ‘auto’ override
Programming explanations
Setting the ‘auto’ program schedules
Auto/Manual mode
Press the ‘mode’ button to select Auto/Manual Mode.
Inmanual mode, the thermostat maintains a constant
set temperature manually set by the user. In auto mode,
the thermostat executes the programmed schedules –
see ‘Setting the auto program schedules’, p2.
Note: Electric In-Slab (o-peak) oor heating systems
should beoperated in Manual mode as the ‘o-peak’
meters turn the system on/o at the required times –
adjusting the temperature set point is all that is required
(see below).
To adjust the temperature set-point, simply touch the
temperature display and it will start to ash. Use the
up or down buttons to adjust. Press the ‘Done’ button
to accept and exit. In auto mode, the display will show
“Override” above the temperature display indicating a
temporary temperature adjustment – the thermostat
will maintain the new set temperature until the next
programmed event. To cancel the override setting,
press the ‘Run Schedule’ button.
To adjust/change the programmed temperature for
your daily auto program, see ‘setting the auto program
schedules’ below.
In auto mode, your heating system will work according to your program schedule set.
Note: Auto mode should not be used for In-Slab (o-peak) oorheating systems as your electricity meter will turn
yoursystem on and o at ‘o-peak’ times (see ‘Auto/Manual Mode’, p2).
1. Press and the day display will start ashing (if your thermostat is set to 5+2 day programmable mode,
theprogramming will skip to step 3.
2. Use to adjust the day of the week you want to start programming or the day you wish to edit an existing
program. If all 7 days of the week are to have the same program press (or press again tocancel).
3. Press . The LCD screen will display Program 1 and the time will be ashing.
4. Use and to adjust the time you wish the Program 1 event to commence for the selected day/days.
Each individual day of the week can be programmed
separately, or program 7 days of the week at once
(every day the same program using ‘All days’ option
in programming). You can also program weekdays (5
days) to one schedule and then weekends (2 days) to a
dierent schedule – for this set up, the Conguration
Menu (Menu 10) will need to be set to ‘5+2 day
programmable’ (see below ‘Conguration Menu’ table).
The program schedule consists of 4 programmable
periods per day:
Program 1: ‘Wake’/Comfort Temperature – Set the time
you would like the heating to start (generally allow 1-2
hours warm up time for oor heating systems) and the
comfort temperature required.
Program 2: ‘Leave’/Economy Temperature – Set the
time you leave home and the temperature you want to
maintain while you are away, e.g. at work (18°C).
Program 3: ‘Return’/Comfort Temperature – Set the
time you return home at the end of the day (an hour or
two before, depending on warm-up time and previous
economy temp set) and the temperature you want
during evening until bed.
Program 4: ‘Sleep’/Economy Temperature – Set the
time you go to bed and the temperature you want to
maintain overnight (e.g. 18°C).
Note: Setting the temperature on/lower than the usual
ambient temperature means your heating may not come
on at all/will cool down substantially and the response time
will need to be increased for the next ‘comfort’ program to
reach the required temperature.

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To lock the keypad, press and hold the top left corner of the display for 5 seconds, you will see a symbol.
Tounlock, repeat the steps above and the lock symbol will disappear.
The holiday function reduces the temperature in your room to the frost protection setpoint (5°C). The thermostat
will maintain this temperature for the duration of the holiday and will automatically return to program mode on
your return. Press and enter the duration of your holiday by pressing or , then press .
To cancel a holiday, reduce the holiday period to 00 days.
With the thermostat turned o, press and hold ‘OFF’ for 5 seconds until you see --:-- on LCD. If a reset is required
the Conguration Menu should be also adjusted to SunRay’s recommended settings for your application – please
consult for further advice.
Please contact SunRay Comfort:
352 Morphett Road, Warradale
T08 8396 5617
E[email protected]
5. Press and the temperature will start ashing.
7. Press and the LCD screen will show Program 2 with the time display ashing – Repeat steps 4,5,6 to set
the remaining programs/events, then press to store and exit.
Tip: During setting programs, press to clear a program entry and thermostat will maintain the temperature
setpoint of the last executed program until the beginning of the next program.
6. Use and to set the desired temperature to be maintained during Program 1.
Locking the keypad
Holiday function
Reset to factory setting
Repairs and maintenance

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Note: The below conguration MENU settings are the thermostat default settings – your installer may have changed one
or more of these settings to suit your specic heating installation (e.g. Menu 06-Maximum Floor temp should be limited
to27C for wooden oor areas).
To enter into the setting menu, please follow these steps:
1. Turn the thermostat o by pressing .
2. Press and you will then see Menu 01.
3. Use and to adjust the sensor selection which is Menu 01 (Air Sensing, Air and Floor, or Floor Only.
4. Press to move to the next Menu. One you have all the menu options set, proceed to the next step.
5. Press to accept and store.
Conguration menu (only to be adjusted by/in consultation with your heating installer)
352 Morphett Road, Warradale
T08 8396 5617
E[email protected]
Thermostat Setup Instructions
Menu # Feature Explanation Recommended setting
01 Mode/Sensor Selection This thermostat is a combination model which allows you to choose 3
dierent modes.
A mode = Air Sensing (built-in sensor)
AF mode = Air & Floor Sensing (oor probe must be installed)
F mode = Floor sensing (oor probe must be installed)
F
02 Switching Dierential The number of degrees dierence before switching. The default is 1°C
which means the thermostat will switch the heating on 0.5°C below the set
temperature and will turn it o 0.5°C above the set temperature. With a 2°C
dierential, the heating will switch on 1°C below the set temperature and
will switch o 1°C above the set temperature.
1°C
03 Air Temperature Calibration This is to recalibrate the air temperature if required. 0°C
04 Floor Temperature Calibration This is to recalibrate the oor temperature if required. 0°C
05 Temperature Readout
(AF mode only)
This gives you the option to show the Air Temperature, Floor Temperature
or to show both Air & Floor at intervals.
A = air temperature
F = oor temperature
A-F = shows both air and oor
in5 second intervals
06 Maximum Floor Temp
(AF mode only)
This is to protect the oor surface. 35°C
07 Temperature Format This allows the temperature to be set as °C or °F. °C
08 Clock Format You can select the clock to show either 12 or 24 hour time. 24-hour (default),
12- or 24-hour clock format
09 Frost Protection This is to avoid your room temperature going below 5°C. O
10 5+2 / 7 Day Mode This allows you to program either 5 days at once, then the 2 days of the
weekend separately, or the full 7 days at the same time or 7 days separately.
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Recommended conguration