Worcester DT20 - User Instructions: Operating Controls; Central Heating Control; Hot Water Control; User Instructions: Setting Programs

ACCESSORY
NFORMATION
3
TECHNICAL DATA
FITTING & OPERATING INSTRUCTIONS FOR WORCESTER BOSCH
TWIN CHANNEL DT20 PROGRAMMER
8-716-106-647 issue b (11.04) UK
USER
INSTRUCTIONS
10
SETTING PROGRAMS
FITTING & OPERATING INSTRUCTIONS FOR WORCESTER BOSCH
TWIN CHANNEL DT20 PROGRAMMER
8-716-106-647 issue b (11.04) UK
DESCRIPTION UNITS DT20
TECHNICAL DATA
Dimensions mm -
Electrical supply - 24v DC <65mA
Ambient operating temperature
C 0 to +50
Humidity operating range % non-condensing up to 45° 30 - 95
Class of protection - II
Degree of protection IP 20
Accuracy @ 25°C sec/day <±1
Battery life years 10
Battery backup time & date years min. 10
Shortest switching period minutes 1
DHW & CH On/Off periods number 3
DHW & CH Programs days 7
Related Standards:
BS EN60730-1:2001
BS EN60730-2-7:1992
Electro Magnetic Compatibility and Radio Spectrum Matters (ERM); Short Range Devices (SRD) ETSI
EN 300 220-1
EC Directives:
European Union Law Directive 2000/84/EC
Low Voltage Directive (73/23/EEC)
Electro Magnetic Compatibility Directive (89/336/EEC)
CE Marking Directive (93/68/EEC)
SETTING PROGRAMS
Setting individual weekend days:
Note: if you do not require individual
weekend times, then press set? until
normal display is shown.
If you do not wish to change the
settings for 'SAT', then press 'set?'
to move to 'SUN'
Setting CH individual weekend
days:
1 Press 'OK' to select day displayed
2 Press 'OK' to select CH
Note: speed up the display by holding
down the + or - buttons.
3 Press + or - to change the ON
time
4 Press set? to set the ON time and
select the OFF time
5 Press + or - to change the OFF
time
6 Press set? to set the OFF time and
select the next ON time
Repeat operations 3 to 6 to set the
2nd and 3rd CH ON/OFF times.
Note: after pressing set? for the 3rd
CH OFF time the display shows SET
HW for that day
Setting HW individual weekend
days:
7 Press OK to select the first ON time
Repeat operations 3 to 6 to set the
1st, 2nd and 3rd HW ON/OFF times.
Press 'set?' until the display returns
to normal mode.
3rd CH OFF
1
2
6
55
33
4
7