9 | Maintenance
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2112899A OI Ti22 ProX
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Add a sufficient amount of glycol to get a water/glycol mix
ratio of 25 % to 40 % glycol.
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Check the sea water and chilled water circuit for leaks in
the entire system and from the sea-cock to the sea water
outlet.
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Check the condensate outflow from the condensed-water
tray and the condensed-water drain line for free passage
and leaks.
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Check the functioning of the system. Run the Ti22 ProX in
cooling and heating mode for at least 10 minutes. Let the
compressor start 3 to 4 times in each mode.
Check yearly:
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Check the entire sea water circuit, including the condenser.
The time interval may need to be increased, depending on
the degree of biological fouling (by shellfish etc.). Soiling of
the sea water circuit reduces the sea water flow rate, which
decreases the heat dissipation and may result in high-pres-
sure switch-offs. If the condenser is soiled, the cooling or
heating capacity of the system decreases. An expert must
clean the sea water circuit (such as the installer or your
Webasto Service Centre).
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Check the electrical connections for corrosion of the con-
tacts and for firm seating.
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Check the heater exhaust system for corrosion and leaks, if
a fuel operated heater is installed.
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Check the fuel line for leaks. Clean or replace the fuel filter,
if a fuel operated heater is installed.
Winter storage:
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Make sure the cooling water circuit contains at least 25 %
to 40 % glycol to prevent accidental freezing of the system
during winter. For sufficient protection, let the glycol per-
centage depend on the local temperature.
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Empty the entire sea water circuit and close the sea water
valve.
General Recommendation:
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When leaving the boat unattended for a longer period
close all sea-water valves.
