Chapter 5: Technology
5.1 Gas burner
34
Construction
36
Resetting the burner
36
Burner output
36
Gas:air mixture control
36
Checking the burner adjustment
36
Adjusting the burner and
matching the burner to the gas type
38
Gas type conversion
40
Limiting the max. burner output
40
Selecting the min. burner output
40
Adjusting the ignition and
ionisation electrodes
41
5.2 DHW cylinder
41
Optimum water hygiene
42
Corrosion resistant and low
on maintenance
42
Low susceptibility to scaling
42
Economical to operate
42
Stratification inside the cylinder
42
5.3 Hydraulic system connection
43
Chapter 6: Inspection and maintenance
6.1 Inspection and maintenance work
49
6.2 Temporary shutdown
51
Draining the system
51
Draining the cylinder
51
Chapter 7: Troubleshooting
Troubleshooting
52
Chapter 8: Specification
Specification GSU/GCU
56
Maintenance log
63
Chapter 9: For the flue gas
inspector
Flue sizing details
64
Safety
The ROTEX GasSolarUnit
(GSU)/ GasCompactUnit (GCU)
is designed exclusively for
heating hot water heating systems.
Carry out all installation, inspection,
maintenance and repair work in line with
these instructions. Strictly observe all
safety requirements and regulations, to
which these instructions refer. Non-
observation or incorrect operation can
result in dangerous situations with risks to
health, individuals, equipment and the
building.
Before any work on the heating system,
switch OFF the mains electrical isolator
and protect against unauthorised
reconnection.
Any work on the heating system must only
be carried out by authorised and
appropriately trained personnel (heating
contractor). Observe all applicable Health
& Safety and accident prevention
regulations.
The electrical installation must only be
carried out by an authorised electrician,
who must observe all local and national
regulations. In addition, observe the
requirements specified by the relevant
electricity supply company.
Maintain the minimum clearances
towards walls and other objects as
detailed in chapter 3.
When installing the ROTEX GasSolar-
Unit/GasCompactUnit ensure, that the
floor can bear a load of at least 1050 kg/m
2
and provides a sufficiently sizeable safety
margin. Check the correct installation of
the temperature sensor and the pressure
gauge prior to commissioning.
The GasSolarUnit/GasCompactUnit must
only be operated with fitted thermal
insulation and/or silencer hood (risk of
burning).
Before connecting the equipment to the
power supply, compare the rated voltage
stated on the type plate (230 V, 50 Hz) with
the supply voltage. Install this heating
system in accordance with the safety
requirements in EN 12828 as an open or
sealed system.
All safety valves must be compliant with
DIN EN ISO 4126-1 and must be
type-tested. The blow-off line must
correspond to the highest rated output of
the ROTEX GasSolarUnit/GasCompactUnit.
In sealed systems, use only safety valves
marked with an “H” in the type-test
symbol. Install them in the safety flow.
For filling and commissioning the heating
system, observe VDI 2035 [or local
regulations].
The ROTEX GasSolarUnit/GasCompactUnit
has been tested and certified in accor-
dance with DIN EN 483, DIN EN 677 and
DIN EN 625.
The GasSolarUnit/GasCompactUnit is
categorised as NOx class 5. It performs
substantially better than the minimum
efficiency for condensing boilers specified
by EN 677. It meets the requirements of
the 1st BImSchV and those of the “Blue
Angel” RAL-UZ 61 [Germany].
For connection to the sanitary system
observe the regulations in DIN EN 806 and
DIN 1988 [or local regulations]. The
connecting pressure should not exceed
6 bar and must, under no circumstances,
be higher than 10 bar. When installing gas
fired heating systems, observe TRGI G 600,
TRF or the respectively applicable national
regulations, as well as the requirements of
the gas supply company.
The gas supply pressure should be
between 5 and 55 mbar.
Compare the gas details specified on the
equipment label with the supply details
specified by your gas supply company.
[ 3 ]
C h a p t e r 1 : S a f e t y
i n s t r u c t i o n s a n d w a r r a n t y
s t a t e m e n t
Summary of Contents for GasCompactUnit Series
Page 17: ... 17 Fig 3 4 3 Flue gas system sets ...
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