Drayton Digistat RF3 User Instructions

Digistat RF3 ‘Wireless System’

User instructions

SCR RECEIVER

INITIAL START UP

IMPORTANT: ENSURE THAT THE COMMISSIONING PROCEDURE HAS
BEEN CARRIED OUT IN ACCORDANCE WITH THE ENCLOSED
INSTRUCTIONS.

SCR (RECEIVER) NORMAL OPERATING MODE

Once the ‘Wireless System’ has been commissioned, there should be little need
for any user interface with the SCR.

During normal operation the red and green LEDs will occasionally be on,

these signify the following:

Green LED

The green LED will be on when there is a demand for heating, and off when
there is no demand.

Red LED

The red LED will flash for 7 seconds, approximately every 5 minutes. This
denotes that a radio signal is being received from the Digistat RF unit.

SITUATIONS REQUIRING ATTENTION

Red LED continually flashing

This denotes that the batteries in the Digistat RF unit are approaching the end of
their life (see ‘battery replacement’).

Red LED continually on

This denotes that the SCR has been unable to receive a radio signal from the
Digistat RF unit. This may be caused by the batteries being dead (see ‘battery
replacement’) or some temporary interference with the radio signal.

To re-send and test the signal, go to the Digistat RF unit. If the flame symbol is
visible on the display, press the ‘–’ button until it disappears. If the flame symbol
is not visible, press the ‘+’ button until it appears. If the radio signal has been
successfully transmitted and received, the red LED will flash for 7 seconds then
go off. If the red LED is still on, ‘learn mode’ may have been selected by accident
(SCR buttons 1 and 2 pressed simultaneously). To correct, open both RF battery
drawers and wait for the display to fade, close the right hand drawer followed by
the left and reprogramme RF with your desired time and temperature settings.

If the red LED is still on, there may be some other fault that will require the
attention of a heating engineer/electrician.

MANUAL OVERRIDE

The heating can be manually switched on and off by using the ‘OVERRIDE’
button on the SCR in a fault situation, even though the red LED will stay on until
a satisfactory signal is reinstated.

Once the SCR receives a satisfactory signal again, it will automatically reset
itself for normal operation.

Drayton

DIGISTAT RF3

Once the ‘wireless system’ has been commissioned, the unit will
display the actual room temperature and the time at somewhere
after 12.00 midnight (Diagram A).

Note: If this unit has replaced a standard room thermo-stat

and/or a programmer is incorporated in the control system, it is
suggested that the central heating (CH) channel is switched to
On/Cont/24hrs. Operation of the heating times and tempera­tures will be controlled by this unit.

Diagram A Diagram B

Digistat RF3 has an indicator to show when the heating system is ON or OFF, e.g. if the SET
temperature is 20°C and the actual room temperature is below 20°C a flame symbol will appear on
the display (Diagram B). This indicates a demand for heat (system will switch ON).

During normal operation, the Digistat RF3 will display actual room temperature continuously.

SETTING THE TIME OF DAY (steps 1-5)

The diagram next to each step description shows resulting display.

1. Press “SET?” button

2. Press “Yes” (–) button.The hours will flash

as Fig. 2. Use the + and – buttons to set
correct hour.

3. Press “SET?” button again and the minutes will flash, use + and –
buttons to set correct minute time.

4. Press “SET?” button, day of the week will flash, 1 = Monday,
7 = Sunday, use + and – buttons to set correct day.

5. Press “SET?” button twice to return to normal operating mode.

PRE-PROGRAMMED TIMES AND TEMPERATURES

The Digistat RF3 comes with the following preset programme.

Symbol Mon-Fri Sat-Sun Temperature

Time Time

6.30 am 7.00 am 20°C

8.30 am 9.00 am 16°C

4.30 pm 4.00 pm 21°C

10.30 pm 11.00 pm 7°C*

* 16°C if selector pin removed, see installation instructions.

+

+

+

+

SYSTEM OFF SYSTEM ON