SATRONIC - Control boxes for oil burners

certified Qualitysystem
ISO 9001 / EN 29001
Reg. Nr. 10529 A Honeywell Company TTO 872 / 876
Oil burner safety control
For burners on hot-air heaters, as well as
burners above 30 kg/h in intermittent
operation, 1- or 2-stage.
Flame detectors:
- Photoresistor MZ 770 S
- Flicker detector IRD 911 / 1010
INTRDUCTION
The oil burner automatic safety control TTO 872, resp.,
TTO 876 controls and monitors burners on hot air heaters,
as well as burners with an oil consumption of over 30 kg/h
(approved and certifcated acc. to DIN 4787).
If the infrared flicker detector IRD 911 or 1010 is utilized as
flame monitor, even red hot combustion chamber walls
cannot affect the safe operation, since this sensor exclusively
responds to the flame.
The oil burner automatic safety control TTO 876 is fully
interchangeable with the type TTO 836. The automatic
control TTO 872 is – with the exception of the flame detector
– compatible with type TTO 810. When replacing type
TTO 810, the photo-cell FZ 711 has also got to be replaced
by an MZ 770 S.
The different heights are compensated for by mounting the
pushbutton extension (art. No. 70601).
Instead of the pushbutton extension, it is also possible to
mount the remote reset device FR 870 (art. No. 70700, refer
to the documentation "Remote Reset device FR 870").
The oil burner control boxes TTO 872.2 / 876.2 are
equipped with a low-voltage protection according to
DIN-EN 230.
TYPES AVAILABLE
TTO 872.2 without connecting terminal for oil pre-heater
TTO 876.2 with bridging contact and connection for oil
pre-heater.
CONSTRUCTIONAL FEATURES
The automatic control is housed in a non-inflammable,
transparent, plug-in type plastic case and contains the
thermo-mechanical and electronic combined time element,
the flame monitor part and the reset device.
On the top of the unit there are the illuminated pushbutton
for indication of malfunctions and reset, as well as the screw
for central mounting.
The base can be equipped with additional loop terminals
and - together with the various possibilities for cable entry
- enables a universal wiring.
1
TECHNICAL DATA
400e/05/94
Operating voltage 220 / 240 V (-15... +10%)
50 Hz (40 - 60 Hz)
Rating fuse max. 10 A rapid, 6 A slow
Power consumption approx. 5 VA
Max. load per output 4 A ohmic (resistive)
valve outputs 2 A ohmic (resistive)
total 6 A ohmic (resistive)
Pre-purge time 20 sec
Pre-ignition time 20 sec
Post-ignition time 2 - 4 sec
Delay time valve 2 approx. 40 sec
Ignition safety time
Waiting period after shut-
5 sec max.
down due to malfunction
Flame detector
approx. 60 sec
MZ 770 S for side-on and end-on viewing
IRD 911 / 1010 for side-on and end-on viewing
Light sensitivity MZ 770 S
Detector current during
better than 8 Lux
operation
Connection to
flame detector
min. 48 μA
MZ 770 S 2 m cable length maximum
IRD 911 / 1010 up to 100 m cable length
Weight, incl. base 0.25 kg
Mounting position Any
Insulation Standard IP 44
Recommended ambient
operating temperatur for
control and flame detector -20° C... +60° C