5.5 Time/Date and Summer/Winter Time
Setting the time and date:
hour, minute, year, month, day.
Description see page 18.
Start of
summer time:
Month
Weekend
within
month
Weekend
within
month
Hour for
changeover:
e.g. from 2 a.m.
to 3 a. m.
Start of
winter time:
Month
Note: Time for changeover to winter time is taken
from summer time, e.g. back from 3 a.m. to 2 a.m.
back to
6 Maintenance and Repair
With the exception of a regular replacement of the batteries for the
Kristall
®
top the room thermostats are maintenance-free.
Only clean the device with a dry or slightly damp, soft and lint-free
cloth. The interior of the device must remain free from water.
Replace the two batteries at regular intervals every 1 years. Only
use new 1.5 V batteries of the type AAA, Alkaline. Never mix old and
new batteries, as old batteries can leak.
7 Disposal
7.1 Disposal of Batteries
Used batteries must be disposed of according to the national regu-
lations with regard to the environment (e.g. at special battery collec-
tion outlets). Never throw used batteries out with your usual rubbish.
7.2 Disposal of the Device
At the end of its life, the room thermostat must be dismounted pro-
fessionally and disposed of according to the national regulations
with regard to the environment.
In case of doubts, please contact the manufacturer’s representative
in your country. Contact details can be found at the back of this
manual.
8 Technical Data
Control type: RS type 1B acc. to EN 60730-1: 2001
Contact: Change-over contact, potential-free,
protective low voltage.
Max. 6A / 250 V~, min. 1 mA / 5V
Accuracy: ± 1 sec. per day at 20°C
Control accuracy: ± 0.2 K
Temperature meas. range: O°C to 50°C, resolution 0.1°C
Temperature setting range: 6°C to 30°C in increments of 0.2°C
Control period: 5 to 30 min. (PD control)
Control lock-in range: ± 0.2 K to ± 5 K (PD control)
Switching hysteresis: ± 0.2 K to ± 1 0 K (hysteresis control)
Memory spaces: 22 temperature changes, programmable
for Mo-Fr, Sa-Su, each day or for individ-
ual days.
Winter/Summer function: by means of switch
(RAMSES 820 - 09/2005) W= Winter /Heating
S = Summer/ Cooling
Class of protection: II according to EN 60730-1
Type of enclosure: IP 20 according to EN 60529-1
Only RAMSES 820 Kristall
®
top
Batteries: 2 x Alkaline batteries 1.5 V, type AAA
Power reserve during
battery replacement: 10 minutes
Only RAMSES 822 Kristall
®
top
Operating voltage: 230V~±10%; 240V~ +6%,-14%•50/60 Hz
Power reserve: 5 hours
