2. GENERAL
Fully automatic NG-LE gas-fired warm air heater
for stable heating - equipped with infrared flame
monitoring,
electrical
blower,
and
open
combustion
operation without an flue gas system.
3. SAFETY FEATURES
The unit is equipped with a safety temperature
controller (STC) as a safety feature to prevent
overheating.
The STC shuts down the unit upon exceeding the
definitively set temperature.
The integrated restart lock prevents restarting the
unit.
After cooling the unit, the cause must be eliminated
and the STC must be manually released. The reset
button is located on the switching unit under the
black screw cap.
Then press the reset button of the control unit on
the front of the switching unit.
The unit is equipped with infrared flame monitoring.
This unit automatically monitors ignition, gas
supply and combustion of the gas. This is done
over the entire period during which the warm air
heater is switched on. If there is a malfunction (the
red warning light goes on), the warm air heater is
switched off via the burner control unit and the gas
supply is interrupted immediately.
4. ASSEMBLY
Before setting up it must be ensured that the
local supply conditions (gas type, pressure)
and the current setting of the WAH correspond.
The unit should be operated only in well-ventilated
spaces and must not be used in residential or
similar premises.
To comply with the MAC limit values at the set-up
location, for each KW of device output a fresh air
exchange rate of at least 25 m
The warm
air
heater
suspended in the room using suitable chains
connected to the three lugs provided for this
purpose.
Attachment of pipes, hoses or the like as well as
changes to the cross-section is prohibited on the
inlet and outlet side.
It must be absolutely assured that there is
adequate distance from inflammable objects and
structural parts, especially on the exhaust side and
All manuals and user guides at all-guides.com
ignition,
supporting
air
chamber
for
3
/h must be ensured.
is
freely horizontally
this must be verified at the time of initial operation
and further start-ups of the equipment. The top,
bottom, side and rear safety margins must not be
less than 1.5 m. On the exhaust side, it must not
be less than 10.0 m.
5. INSTALLATION / INITIAL
AND FURTHER START-UPS
Caution:
Electrical and gas hook-ups must be done only
by a specialist and in accordance with local
standards. TRGI and TRF in Germany.
Since there may be regional differences in gas
composition, proper igniting must be checked on
site at the time of initial operation and further start-
ups. In the event of imperfect ignition, the position
of the ignition electrode must be adjusted.
These inspections should be repeated at regular
intervals
Electrical Hook-up:
Using
a
three-wire
equipment-side supply.
Triggering:
The room thermostat cable is connected directly to
the terminal strip in the switching unit. It is also
possible to use the floating heater contact of the
ventilation control system or of the controlled
environment computer.
Instead of the triggering options described above,
the socket provided for the concerned unit can also
be switched.
Gas Hook-up:
Connection pressure: 20.0 mbar
Nozzle pressure:
Nozzle:
- 11 -
OPERATION
grounded
plug
on
the
G 1/2 " internal thread
8.0 mbar
3.25 mm