Drayton Digistat 1 Instructions d'installation et d'utilisation - Page 2
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Digistat
1
Digital room thermostat
Installation and operating instructions
GENERAL DESCRIPTION
Digistat 1 is a highly accurate electronic room thermostat designed for use in
normal operating environments. When installed on new or existing central
heating systems it provides the benefits of greater comfort and economy.The
result of our continuous development programme, Digistat 1 combines ease
of use with proven reliability.
ELECTRICAL CONNECTIONS
If the Digistat is to be used as a direct replacement for an existing room
thermostat refer to the table below which shows the wiring conversion
necessary for correct operation.
Make/model
Common Demand Satisfied Neutral
Drayton Digistat 1*
1
3
Drayton RTS 1&2
L
3
TS142
1
2
TA350
1
3
Drayton RT/RTE
1
2
Honeywell 6060/6160
1
3
Satchwell TLX 2259
3
1
* Digistat is battery operated and double insulated therefore neutral and earth
connections are not required. Unused existing cables should be safely isolated.
SPECIFICATION
Temperature range :
5°C to 30°C, set in 1ºC steps
16°C to 30°C (selectable)
Power supply :
Two type AA1.5v alkaline cells – supplied
(typical battery life two years)
Switch rating :
2 (1) A 230V 50 HZ
Switch type:
S.P.D.T. relay (volt free)
Temperature sensor :
Electronic
Mounting :
Suitable for surface or conduit box mounting
Wiring :
Designed for fixed wiring only, to comply with
current IEE regulations
Isolate mains supply before fitting Digistat or removing an existing
A switch having contact separation of at least 3mm in all poles must
be incorporated in the fixed wiring as a means of providing full
REPLACING EXISTING ROOM THERMOSTAT
Before any existing room thermostat is removed, note the position and colour
of wires already connected. Follow the instructions below for 'new installations'
referring to the conversion chart overleaf if the function of each wire is not
known.
If the previous room thermostat used a neutral and/or earth supply,
these should not be connected to the Digistat and should be
Earth
2
Not required
NEW INSTALLATION
–
N
–
Location
Care should be taken to mount the Digistat in a position which is not subject
–
4
E
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
2
–
5
room temperature but away from the direct influence of radiators or other
3
4
–
appliances giving off heat. Minimum wall plate clearances are shown.
Installation
4
2
–
If you do not have the knowledge to install the Digistat safely arrange for a
competent electrician to do the job for you. Wiring should conform to the
–
4
E
current IEE regulations.
Fixing
1. Loosen the securing screw, remove the wall-plate and, if surface wiring is to
be used, snap out the cable entry panel on the bottom edge of the
Digistat using a pair of pliers.
2. Fix the wall-plate, terminals at the top, either direct onto a flat wall using
wall plugs and No 6 x 1" woodscrews or on a flush mounting single
conduit box using M 3.5 x 14 screws.
3. Complete the wiring to the wall-plate in accordance with the diagram
below.
4. Note: the Digistat comes preset with a temperature range of 5ºC to 30ºC.
If you wish to select the optional range of 16ºC to 30ºC, remove the
selector pin at the rear of the unit before fitting.
5. Plug the Digistat onto the wall-plate and tighten the securing screw.
6. Before switching on the mains ENSURE THE CIRCUIT FUSE IS 3A.
WA R N I N G
room thermostat.
disconnection of the mains supply.
I M P O R TA N T
safely isolated.
Wiring (schematic)
Wall plate clearances
See 'IMPORTANT' note in
box opposite
Maintenance
No regular maintenance is required
for this product.
INITIAL START UP
Open the battery compartment
situated at the bottom left hand
corner (press to unlatch and slide
down). Remove the insulator strip
from between the batteries and
their contacts and close the
compartment.
The unit will now display the actual
room temperature.
The SET temperature comes preset
at 20°C, if the actual room
temperature is below 20°C, a 'flame'
symbol will appear at the left hand
side of the display, this indicates a
demand for heat (system will switch
on).
System OFF
System ON
During normal operation, the Digistat 1 will display actual room
temperature continuously.