ADVANCED FEATURES
Adjusting the Setpoint using the On and Off buttons
The ‘Off’ button can also be used to adjust the temperature setting
to a setback level and the ‘On’ button can also be used to adjust the
temperature to a comfort level.
The setback feature is designed for those interested in saving energy
and have a varied lifestyle. It means that when leaving the house for
a shopping trip or a night out, the user can adjust the temperature
to a lower level by pressing the ‘Off’ button, with the comfort level
restored on their return by pushing the ‘On ‘button.
NB. This feature can be used to quickly adjust the temperature
setpoint to a setback temperature for economy operation if for
example, ‘Off’ Temperature = 15ºC and the On temperature can
be used to quickly adjust the temperature setpoint to a comfort
temperature if for example ‘On’ Temperature = 22ºC.
To change the user adjustable settings
A range of user settings can be adjusted,
1. Maximum Temperature
2. Minimum Temperature
3. Off Temperature
4. On Temperature
• To enter the ‘User’ menu, press and hold the ‘On & Off’ button
for more than 5 seconds – the display will show ‘Hi’ and the
maximum setpoint.
•
If the ‘On’ button is pressed the display will show ‘Lo’ and the
minimum setpoint.
•
If the ‘On’ button is pressed again the display will show ‘OFF’ and the
OFF setpoint.
•
If the ‘On’ button is pressed again the display will show On’ and the
On setpoint.
Changing the Maximum Temperature Setting
• To adjust the maximum temperature enter the user menu as
described previously, then press the ‘On’ button until ‘Hi’ is shown.
• Press the ‘+’ button to increase the maximum temperature
setting (max. 30
o
C) and the ‘-’ button to reduce the maximum
temperature setting (min. 5
o
C or min temp setting).
Changing the Minimum Temperature Setting
• To adjust the minimum temperature enter the user menu as
described previously, then press the ‘On’ button until ‘Lo’ is shown.
• Press the ‘+’ button to increase the minimum temperature setting
(max. 30
o
C or max. temp. setting) and the ‘-’ button to reduce the
minimum temperature setting (min. 5
o
C).
Location
Room Thermostat
1.5m
Care should be taken to mount the thermostat in a position which is not
subject to direct sunlight or draughts. Preferably it should be mounted
on an inside wall about 1.5m (5ft) above the floor in a position where it
can respond to room temperature but away from the direct influence of
radiators or other appliances giving off heat.
Signal Strength (RF Models)
Before fixing the
DRF
to the wall it is recommended to first check
the signal strength from that location.
To do this, remove the batteries, press and hold the ‘+’ button whilst
refitting the batteries, the display will show ‘rF’ which indicates that the
DRF
is continuously sending an OFF signal to the SCR (receiver).
Leave the
DRF
in position and return to view the SCR. If the red
LED is continuously flashing, this indicates a good signal. If the red LED is
not flashing, this indicates a poor signal and you need to reposition the
DRF
until the red LED is flashing.
When the signal strength has been confirmed remove the batteries to
cancel the test and follow the installation instructions.
Before Installation
If you do not have the knowledge to install the thermostat safely then
you must arrange for a competent electrician to install it for you. Wiring
must conform to the current IEE regulations.
Prior to commencing the installation you must ensure the mains supply is
switched off.
1. Remove the front cover using a flat screwdriver and separate from
back plate (Fig 1).
2. Fix the back plate directly onto the wall using suitable wall plugs and
screws or mount over existing wall box (Fig 2).
(Fig 1)
(Fig 2)
(Fig 3)
FAULT DIAGNOSIS (All Models)
If the display shows E1, the following faults could have occurred
1. Internal temperature sensor has failed.
2. Ambient temperature is outside product operating temperature range.
INSTALLER OPTIONS
The following installer options can be adjusted,
1. Application Type
2. System Capability
• To enter the ‘Installer’ menu, press and hold the ‘Off & +’ buttons for more
than 5 seconds – the display will show ‘Inst’ (Installer menu) as shown,
Application Type
• Press the ‘On’ button until ‘Ap:ty’ (Application Type) is shown, with the current
setting.
• Press the + or – buttons to select between,
9
= Gas Boiler
0
= Oil Boiler
E
= Electric Heat (Relay model only)
Once a value has been changed, pressing ‘On’ before exiting the menu
will save the new setting.
System Capability
Adjust this setting to suit the heating system capability.
• Press the ‘On’ button until ‘Syst’ (System Capability) is shown, with the
current setting.
• Press the + or – buttons to select between,
F
= Fast – the house usually reaches setpoint in < 1 hour
S
= Slow – the house usually reaches setpoint in > 1 hour
Once a value has been changed, pressing ‘On’ before exiting the menu
will save the new setting.
To return to normal operation, either press and and hold the ‘Off & +’
buttons for more than 5 seconds or wait for 1 minute and it will return
automatically.
3. Replace the front cover by locating in position and pushing fully onto
the back cover (Fig 3).
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4. Remove the battery cover using a coin (Fig 4).
5. Install the 2 AA batteries provided (Fig 5).
6. Replace battery cover (fig 6).
7. The Di1RF is now installed and will automatically start to control the
room temperature.
WIRING (Not RF Models)
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(Fig 4)
(Fig 6)
(Fig 5)
Changing the Off Temperature
• To adjust the ‘Off’ temperature enter the user menu as described
previously, then press the ‘On’ button until ‘Off’ is shown.
• Press the ‘+’ button to increase the Off temperature (max. 16
ºC or max.
temp. setting) and the ‘-’ button to reduce the Off temperature (min. 5ºC
or min. temp. setting).
Changing the On Temperature
• To adjust the ‘On’ temperature enter the user menu as described
previously, then press the ‘On’ button until ‘On’ is shown.
• Press the ‘+’ button to increase the On temperature (max. 30
ºC or max.
temp. setting) and the ‘-’ button to reduce the On temperature (min. 5ºC
or min. temp. setting).
While adjusting the settings within the menu, when you reach the maximum
or minimum possible setting the display will flash to indicate you cannot
adjust the product further, e.g. you cannot set the on higher than the
maximum temperature setting.
To return to normal operation, either press the ‘on & off’ buttons for more
than 5 seconds or wait for 1 minute and it will return automatically.
TAMPER PROOFING (All Models)
To tamper proof the product i.e. prevent unauthorised adjustment of the
product set the Min and Max temperatures to the same desired value.
FAULT DIAGNOSIS (All Models)
If the display shows E1, the following faults could have occurred
1. Internal temperature sensor has failed.
2. Ambient temperature is outside product operating temperature range.
BATTERY REPLACEMENT (All models)
How do I know when to change the batteries.
When the batteries start to run low a battery icon will flash in the display, to
indicate “low battery” during this time the Di1RF will function normally
(see fig 1).
Please replace batteries with 2 x 1.5V IEC LR6 (AA) Alkaline batteries.
When the battery icon alone is shown in the display, the batteries are completely
exhausted and the Di1RF will cease to function (see fig 2). Re-activate by
replacing the batteries.
How to replace the batteries see fig 3.
Remove the battery cover using a coin. Replace the spent batteries with 2 x
1.5V IEC LR6 (AA) Alkaline batteries ensuring correct orientation. Replace the
battery cover pressing fully home.
Technical Data
D, DRF
ROOM UNIT
Power Supply:
2 x AA Size, 1.5V alkaline batteries
Switch Type & Rating:
Relay version:
SPDT 16(2)A 230V a.c. Volt free
Min. recommended
current:
10mA@24V a.c. (inductive)
Radio frequency:
RF version:
433 MHz
Radio Signal Range:
30m typically. The range may be affected by
(RF Version)
the composition / density and number of
walls between the Digistat RF and SCR.
Temperature Range:
5 to 30ºC
Control Accuracy:
+ 0.5K @ 20ºC
Ambient Temperature:
Operating 0ºC to 40ºC /
Storage –20ºC to 55ºC
Mounting:
Suitable for surface or conduit box
mounting
Wiring:
Relay:
Designed for fixed wiring only, to comply
with current IEE wiring regulations (BS7671).
RF:
No wiring required
Ball Pressure Test:
75ºC
Pollution Degree:
2
DIGISTAT (SCR)
Power Supply:
230V a.c.
Switch Type & Rating:
SPDT (voltage free) 2(1)A 230V a.c. or
24V a.c./d.c.
Wiring:
Designed for fixed wiring only, to comply
with current IEE wiring regulations (BS7671).
Reception Frequency:
433 MHz
Relevant EC Directives:
2006/95/EC Low Voltage Directive
2004/108/EC Electromagnetic Compatibility
Directive
1999/5/EC R&TTE Directive
2006/66/EC Battery Directive
Applied Standards:
EN60730-1; EN60730-2-9
EN 300 220-2; EN 301 489-3
Electric Heat
Combi Boiler
Basic Boiler with Zone Valve
Basic Boiler
RF PRODUCT ONLY
SCR RECEIVER (RF Model only)
SCR (Receiver) Normal Operating Mode
• Once the ‘Wireless System’ has been commissioned, there should be
little need for any user interaction 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 DRF
unit.
Situations Requiring Attention
Red LED continually flashing
• This denotes that the batteries in the DRF 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 DRF 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 D1RF unit and remove
the batteries, after a few seconds (the display will go blank) refit
the batteries and then reset to your desired temperature. 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 stays on, there may be some other fault that will
require the attention of a heating engineer/electrician.
Manual Overide
• 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.
Proper Battery Recycling
Electronic devices and batteries, rechargeable or not, should not be
disposed of into ordinary household waste. Instead, they must be
recycled properly to protect the environment and cut down the waste
of precious resources. Your local waste management authority can supply
details concerning the proper disposal of batteries.
In compliance with the EU Directive 2006/66/EC, the button cell battery
located on the printed circuit board inside this product, can be removed
at the end of product life, by professional personnel only.
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(Fig 3)
(Fig 2)
(Fig 1)
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