Rotex GCU compact, Инструкция по установке и обслуживанию

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ROTEX GCU compact -
9 x Service and maintenance
Ɣ Check the overflow hose connection and drain section for
leakage, unobstructed flow and gradient.
9.2.3 Checking and cleaning the burner
As a rule, the burner does not wear. If contaminations or unsatis-
factory combustion values are detected, the burner must be re-
moved (see chapter 7.4 "Dismantling the burner"), cleaned and,
if necessary, re-adjusted (see chapter 7.3 "Burner setting").
Cleaning the combustion chamber
Ɣ
Remove the burner (see chapter 7.4 "Dismantling the
burner")
Ɣ
Rinsing the flue gas path with clean water (hose in the open
combustion chamber).
Checking the burner
Checking the burner includes visually inspecting the burner's
condition as well as making flue gas measurements.
The scope of inspection includes:
Ɣ
Clean the surface of the burner (blow off with compressed air
or vacuum).
Ɣ
Conduct a visual inspection of the ignition and ionisation
electrodes for damages and correct electrode gap (see
chapter 7.3.5 "Setting ignition and Ionisation electrodes").
Ɣ
If necessary, replace faulty parts.
Ɣ Mount burner in combustion chamber.
Ɣ
Check the gas line for leakage.
Ɣ Check combustion values:
–
Flue gas temperature at measuring sockets of the flue gas
pipe. (Target value < 80°C),
– O
2
- or CO
2
-content (see chapter 7.3.1 "Setting values"),
– CO content (target value < 50 ppm).
Î
If the combustion values lie not within the target range, the
burner must be adjusted according to chapter 7.3 "Burner
setting".
Fig. 9-2 Check condensation water drain
The condensate is a weak acid. It is added to the de-
pressurised zone of the hot water storage. Under
normal plant operation, this ensures that the storage
tank is always filled up to the overflow edge. A long-
term neutralisation filling in the container ensures that
the fluid leaving the container has neutral pH. Any dep-
ositions remain in the pressureless area of the con-
tainer.
DANGER OF EXPLOSION!
Escaping gas is a direct threat to human health and
safety. Even a few sparks can cause major explo-
sions.
Ɣ Only heating specialists authorised and trained by
the gas or power supply company should be
allowed to work on gas-conducting parts.
WARNING!
Danger of burning - hot surfaces.
Ɣ Let the burner cool down for a reasonably long
time before maintenance and service work.
Ɣ Wear protective gloves.
For exact information regarding the checking and set-
ting of the burner, see chapter 7.3 "Burner setting".
For exact information regarding the assembly and dis-
assembly of the burner, see chapter 7.4 "Dismantling
the burner".
In the course of maintenance work, the safety relevant
components must be additionally inspected for the
expiration of their nominal service life:
–
Automatic firing unit: 10 years or 250,000 burner
starts,
– Safety gas control block 10 years or 250,000 burner
starts,
– Overpressure safety valve: 10 years.
We recommend, to enter all measured values and the
conducted work with the date and signature into the
enclosed operating handbook.