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Since there may be regional differences in gas
composition, proper igniting must be checked on
site at the time of initial operation.
In the event of imperfect ignition, the position of
the ignition electrode must be adapted.
These inspections should be repeated at regular
intervals.
The performance of the pressure regulator to be
used must
unconditionally
correspond to the
WAH data (connection pressure and connection
load).
Control :
Control can be achieved using a room thermostat
that is connected to the respective thermostat
jack (Item 20) on the front panel of the switch
box.
5. INITIAL OPERATION AND
FURTHER START-UPS
5.1 Initial operation and further start-ups of
Device Type : NG-15
After opening the gas valve and setting the
desired heat output on the switching box of the
WAH, set the operating switch to
I.
The fan will
start.
Press the
Start Gas
thermoelectric ignition
security (Item 5) button. At the same time
depress the button Gas High Voltage Ignition
(piezo-igniter, Item 13) on the front panel of the
switch box several times, until the burner cuts in.
After ignition, press the
Start Gas
button for 10
seconds. If after releasing the button, the burners
go out, wait one minute and then repeat the
ignition procedure.
5.2 Initial operation and further start-ups of
Device Type : NG-35-100
After opening the gas valve and setting the
desired heat output on the switching box of the
WAH, set the operating switch to
I
(Item 2)
.
The
fan will start.
In the case of operation using a room thermostat,
the thermostat must be set using room
temperature.
With fan, ignition is automatically turned on and
after a short pre-purge time, the solenoid (Item 9)
is opened.
After establishing the flame, ignition is
automatically shut off. The device has reached its
operating setting.
If the flame has not yet formed after lapse of the
ignition time, the aforesaid ignition procedure is
repeated up to four times. If the flame has still not
formed, the solenoid (Item 9) automatically closes
the gas supply.
Likewise, if the flame goes out during operation,
the solenoid will immediately close the gas supply.
The automatic gas-firing unit has executed a fault
shut-down and executed an interlock. The read
fault light on the switching box lights up.
Once any fault has been eliminated, after
approximately 60 sec the device can be restarted
by pressing the reset button (Item 24).
6. PLACING OUT OF SERVICE
Place the selection switch in the
0
position
and close the gas infeed.
The WAH must be completely cooled prior to
transport.
7. MAINTENANCE
For assuring operational reliability and to achieve
optimal efficiency, the WAH must be serviced and
cleaned at appropriate intervals.
To do this the following must be unconditionally
observed :
•
When carrying out maintenance, disconnect
the mains plug and close the gas line.
•
The WAH, especially the fan must be checked
at regular intervals for dirt and, if necessary,
cleaned.
•
Do not
use water for cleaning!
•
Use only the original equipment
manufacturer's replacement parts.
•
Repairs to electrical and gas conducting
components must be done only by specialist
personnel!
•
On completion of service work, initial start-up
together with function check must be re-done.
Содержание NG-100
Страница 8: ...7 NG 15 35 50...
Страница 9: ...8 NG 75 100...
Страница 10: ...9 11 ELEKTRISCHER SCHALTPLAN Ger tetyp NG 15...
Страница 11: ...10 11 ELEKTRISCHER SCHALTPLAN Ger tetyp NG 35 50...
Страница 12: ...11 11 ELEKTRISCHER SCHALTPLAN Ger tetyp NG 75 100...
Страница 19: ...18 NG 15 35 50...
Страница 20: ...19 NG 75 100...
Страница 21: ...20 11 ELECTRICAL CIRCUIT DIAGRAM Device Type NG 15...
Страница 22: ...21 11 ELECTRICAL CIRCUIT DIAGRAM Device Type NG 35 50...
Страница 23: ...22 11 ELECTRICAL CIRCUIT DIAGRAM Device Type NG 75 100...
Страница 30: ...29 NG 15 35 50...
Страница 31: ...30 NG 75 100...
Страница 32: ...31 11 SCHEMA DES CONNEXIONS ELECTRIQUES Type d appareil NG 15...
Страница 33: ...32 11 SCHEMA DES CONNEXIONS ELECTRIQUES Type d appareil NG 35 50...
Страница 34: ...33 11 SCHEMA DES CONNEXIONS ELECTRIQUES Type d appareil NG 75 100...