REMKO DZH 20-2 - Manual (Page 5)

5
Mounting Regulations
CAUTION
Avoid underpressure or over-
pressure in mounting rooms
since these states always lead
to combustion-technical
problems.
Sequence of functions
After the unit has been switched on
or in case heating is reqired (auto-
matic function with room thermos-
tat), the supply air fan also switched
on.
After the preliminary ventilation of
the burner, the solenoid valve opens
the fuel supply for the oil nozzle.
The fuel, sprayed under high pres-
sure, is enriched with an amount of
oxygen that has been adapted to the
heating capacity and ignited using
an electrical, high-voltage ignition
spark.
As soon as a flame is burning wit-
hout a problem, the automatic bur-
ner relay assume the optical flame
monitoring function.
After a short period of time, hot air
is blown out.
The automatic burner relay perform
all device functions fully automati-
cally and monitor them securely.
In case of any irregularities or an
instable or extinguished flame, the
unit is deactivated by the automatic
burner relay.
The pilot lamp on the automatic
burner relay lights red.
A restart of the unit is only possible
after a manual reset of the auto-
matic burner relay.
After the unit has been shut down
using the operating switch or by
the room thermostat, the supply air
fan continues to run for a certain
period of time to cool the combus-
tion chamber and then shuts down
independently.
Concerning to each room tempe-
rature the thermostat operation
repeats the descripted operation
automatically.
When the unit is in use, the safety
guidelines of the employers‘ liability
insurance associations, the respective
country construction ordinances, and
the burning appliance regulations
basically apply.
For example for Germany:
– Feuerungsanlagenverordnung
(FeuVo) (Furnace Installation Ordi-
nances) of the individual states
– Unfallverhütungsvorschrift (UVV)
(Accident Prevention Regulation)
„Heiz-, Flämm- und Schmelzge-
räte für Bau- und Montagear-
beiten“ (Heating, Burning, and
Melting Equipment for Construc-
tion and Mounting Work) (VBG
43)
– Unfallverhütungsvorschrift (UVV)
„Verwendung von Flüssiggas“
(Use of Liquefied Gas) (VBG 21)
– Arbeitsstättenrichtlinien ASR 5
(Workstation Guidelines)
– Arbeitsstättenverordnung (Work-
station Ordinance) §§ 5 and 14
Outdoor mounting
■ Due to the operation of the unit,
no dangers or unreasonable
nuisances may arise
■ The unit operator must guaran-
tee that unauthorised persons
cannot manipulate the unit or the
energy supply
■ To avoid damage due to incle-
ment weather, the unit must be
mounted in a protected manner
Mounting in closed,
well-ventilated rooms
■ According to the type, the unit
is designed without an exhaust
connection and may be used in
closed rooms only under certain
circumstances
■ To exclude an impermissible pol-
lution of the room air, a reliable
exhaust of the combustion gases
must always be guaranteed
■ The supply of the fresh air
required for proper combustion
must be guaranteed. The fresh
air supply should come through
windows and doors or through
sufficiently sized openings in the
outer wall
■ The unit may be used for room
heating only with a room ther-
mostat (accessory)
The unit may be operated indoors
only if:
- A sufficient air volume for combu-
stion is supplied to the device.
- The unit is well aerated and venti-
lated
- The amount of pollutants in the
breathing air that is hazardous to
health may not reach an unreaso-
nable concentration