Velleman TT2000 Bedienungsanleitung Seite 15

THERMOSTAT WITH REMOTE CONTROL VIA THE
TELEPHONE
The thermostat is used as any other one, but with the added facility of
chosing the day or night temperature setting by means of a telephone.
The remote control facility is operated via the telephone keypad, thus a
DTMF type phone is required.
From audio signals sent down the line, the user receives a report back
on how the thermostat is set. Switching is protected by a security code,
set by the user, which is keyed into the telephone in a simple manner. If
a DTMF phone is not available, then the separately supplied acoustic
DTMF generator (our type PD-888) can be used. This unit is simply held
against the telephone mouthpiece and the appropriate codes are then
made.
SPECIFICATIONS
- Separate settings for day and night temperature with LED indication.
- Relay output with LED indication: 5A/240VAC (1200W)
- Telephone pick-up after ±8 rings
- Automatic status report:
Double tone if day temperature is chosen.
Single tone if night temperature is chosen.
Double or single tone is given 5 times if the temperature has fallen
below 3°C (breakdown report of the heating system)
- Automatic hang-up if no code is received within 40 seconds.
- Number of possible security codes: from 000 to 999
- Day temperature setting: from 14°C to 26°C
- Night temperature setting: from 6°C to 18°C
- Hysteresis (allowed temperature swing): 0.1°C
- Local manual control
- Code system: DTMF
- Supply voltage: Mains
The right to make changes is reserved
TT2000
15