Initial Start-up and Service
20
Steps
(continued)
18. Clean combustion chamber/heat exchanger surface
S
ervice
1.
Remove front enclosure panel (if still
installed) as per the instructions on
page 9 in this manual, and reinstall
panel upon completion of service
work.
2.
Remove burner assembly as per
instructions on page 18.
3.
If necessary, clean the combustion
chamber and heat exchanger
surface
A
with a brush and/or rinse
with water.
Use solvent-free cleaning agents to
remove residues:
H
Remove deposits of combustion
by-products with alkaline agents
containing tenside.
H
Remove coatings and (yellowish
brown) surface discoloration with
phosphoric acid-based “Antox 75 E
Plus”, or citric acid-based
CitriSurf
t
3050 by Stellar
Solutions Inc.
H
Rinse thoroughly with water.
4.
Mount burner and tighten diagonally
to a torque of 70.8 lb.in / 8 Nm (four
flange locknuts).
5.
Install burner assembly..
Please note:
Be careful not to scratch parts which
are in contact with flue gas. Use
plastic brushes, not wire brushes!
Follow Material Safety Data Sheet
(MSDS) of the cleaning agent
manufacturer.
The cleaning agents must not contain
hydrocarbon-based solvents or
potassium.
6.
Fasten threaded connection for the
gas connection hose with a new
gasket or O-ring.
7.
Connect electrical cables to
corresponding parts.
Perform leak test.
5
4
4
3
2
0
7
v
1
.5
Fig. 12
Cleaning the combustion
chamber and heat exchanger
A
Follow cleaning agent manufacturer’s
safety instructions and wear
appropriate protective equipment.
WARNING
IMPORTANT
