12.
Installation checks
WARNING
WARNING
VARNING
VARNING
WARNING
Fire/explosion risk
Never use a naked flame for leak detection.
LPG system
Always check the LPG gas system for leaks according to the relevant regulations after installation
or service.
• If a leak is suspected, locate it using leak detector spray or soapy water.
• Check that the reduction valve is set to the right pressure (30 mbar).
The heating system
• Check that all hose clamps are correctly fitted and located.
• Check the system for leaks when the entire system is visible, i.e. before furnishings are fitted.
Checks can be performed in two ways. Either by leak detection at 0.75-1.0 bar over 15 min.,
pressure loss of max. 0.05 bar, or by filling the system with fluid and performing a visual inspection.
No leakage of fluid is acceptable.
• Check the glycol mix in the expansion tank. The level must be approx. 1 cm above the MIN. line
(Fig. 23) when the system is cold. Make sure the system is properly vented before running it.
• Check that the circulation pump rpm are correctly set; see section 7. Installing pumps. If the fluid
in the expansion tank sloshes around and it sounds as if pump rpm are set too high, reduce circula-
tion pump rpm.
• Check that the boiler can be started on gas and electricity.
• Ensure full heat comfort and circulation in the system.
The water system
• Check the fresh water system and the boiler for leaks. Carefully check that all connections between
the boiler and water system are properly sealed.
Other
Check that:
• The vent and drain hoses on the expansion tank are not clogged.
• Draining from the fresh water system works (see section 5.11 Connection to fresh water system).
• Flue and hoses are fitted correctly, and that hose clamps are fitted and tightened.
• Serial number and installation date are shown in the boiler service record.
• Year of manufacture is pre-checked on the boiler type plate (when installed after the first start-up).
• All accessories for the system work, and are correctly set under System Configuration on the Alde
Control Panel. For example: booster or underfloor heating.
• If Truma AC is fitted and connected to Alde, make sure it can be started from the Alde Control Panel.
If an outdoor sensor is fitted, the outdoor temperature must exceed 10 °C in order for AC to begin
cooling, or exceed 4 °C to begin heating.
• Check air circulation. Make sure nothing prevents convection. To make the most efficient use of wa-
terborne heating, air must be able to pass freely through air gaps under the bed boxes, behind the
backrests/cushions and wall cabinets. If the vehicle has fitted carpets, check that they do not prevent
air supply to the convectors. It is also important that curtains, cushions and blankets do not prevent
air circulation behind seatback cushions.
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