38153

Drayton Erie Digistat RF2 Manual

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IMPORTANT
To avoid the possibility of having to reprogramme the
switching times and temperatures, it is advisable to wait
until the display with a flashing battery symbol changes to a
continuous battery only display (after 30 days – Diagram D).
In this condition the unit will remain OFF but your
programmed settings will be held in the memory for a number of weeks. The
two battery compartments can now be left open, to replace the batteries, for
a
pproximately one hour. If the compartments are left open for longer, the unit
will revert to the factory preset times and temperatures. It may be necessary to
reset the correct time of day after changing the batteries.
The battery compartments are situated at the bottom of the unit (press to
unlatch and slide down). Ensure new batteries are installed correctly. Close the
right hand compartment first followed by the left.
HELPFUL HINTS
1. First/last set times The Day 1 setting cannot be programmed before
12.00. The night setting can be programmed at whatever time you require,
even after 12.00 midnight so long as it is not programmed more than 23 hours
50 minutes after the Day 1 setting.
2. Part or full day omission If during programming the Digistat, one of the
symbols on the left hand side of the screen starts to flash, this indicates that two
or more of the switching times have been set to the same time. This facility
enables you to omit one or more of the switched periods. When one or more
switching times are programmed together the later setting takes precedent. For
example, if all four switching times were set together the Digistat would control
continuously at the fourth (night) temperature setting .
3. Programme sequence The Digistat will not allow you to program the
switched periods out of sequence but will hold the times together as stated above.
4. Reset If at any time during the programming you get confused and would
like to start the procedure from the beginning press the SELECT and – buttons
at the same time and hold for two seconds. This resets the Digistat to the
factory preset times and temperatures shown in the table (overleaf).
5. Self revert If during programming no button is pressed for between one and
two minutes the Digistat will revert automatically to its normal operating mode.
IMPORTANT
This product operates on a new frequency of 433 MHz and is not inter-
changeable with previous 418 MHz units which can be easily identified:
433 MHz =
Drayton brand
418 MHz = brand
CONFORMS TO THE ESSENTIAL REQUIREMENTS
OF THE FOLLOWING DIRECTIVES:
89/336/EEC Electromagnetic compatibility
Digistat RF 2 ‘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 resend 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.
Diagram D
+
Drayton
Invensys Controls Europe
Technical Helpline: +44 (0)845 1307722
Customer Services: +44 (0)845 1305522
An Invensys Product 090 795
Invensys Climate Controls reserve the right to make changes without notice and cannot accept liability for errors. IssB
090-795 Digistat RF2 Inst IssB 12/5/06 16:13 Page 1
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