Coachman Travelmaster 2022, Руководство пользователя

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4-17
C22M-1 EN
Descriptions
Page
Convector and hose connection with bleed nipple.
CONVECTOR SYSTEM
Convectors are mounted on the walls. Heat is transferred
to the air as it passes around the convector fins.
Between the convectors, the heating system’s fluid is led
via hoses and pipes. Some of these have bleed nipples.
Air in the heating system prevents the fluid from circula -
ting correctly. This user manual contains instructions for
bleeding the system.
Descriptions – Heating system
NB!
Never mix different types of glycol. This can
cause chemical reactions that damage the hea -
ting system.
HEATING SYSTEM FLUID
A mixture of water and glycol is used in the heating system
and the boiler.
Using the right type of glycol is important for protecting the
heating system from corrosion (and thus avoiding leaks in
the future).
The right mixture ratios are critical for protecting against
freezing at low temperatures.
Glycol goes off and must be changed to ensure its full
effect. Intervals for changing depend on the type of glycol
used. Certain types of glycol have to be changed every
two years. Long-life glycol provides full protection for up to
five years. Ensure that glycol changes are documented in
the service book.
Use only glycol that is recommended by Coachman.
Filling
Remove the cover plate in front of the expansion tank.
Fill the system so that, with a cold boiler, the level is just
above MIN.
Refit the cap and the cover plate.
Draining
Draining is by using a pair of pliers to remove the drain
plug (under the floor). Also remove the expansion tank’s
cap.
Recommended glycol products
Use (mono) ethylene glycol with a corrosion inhibitor.
This is tested as per the SAE J 1034 quality standard.
Long-life products have to satisfy the requirements of
G12++.
Examples of products satisfying the requirements:
Alde Premium G12++ Antifreeze (long-life, 5 years).
Regularly check the heating system to ensure
that there are no leaks at any of the joints in
the heating loop. If glycol has leaked out, rinse
carefully with water and then dry.
Drain plugs for draining the heating system.
Accessible under the motorhome (by the boiler and at the
heating system’s lowest point).