Alde 3020 HE Compact - Page 14

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12
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, water in the water heater may be hot.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Never actuate the drain valve lever as long as the heat-
ing system is under water pressure and/or is still warm.
Closed
M
Open
M
K
28
2421
20
22
23
25 27
26
Figure 5. Alde Compact 3020 HE boiler
Figure 6. Combined safety/drain valve Figure 7. Frost Control
1. Switch off the freshwater pump.
2. Open all water taps.
3. Then, open the safety/drain valve by moving the yellow lever to the vertical position (M) (Figure 6), or, alternatively,
turn the knob (K) 90° (Figure 7). The hot water heater will now drain straight out under the vehicle through the
safety/drain valve hose.
4. Check that all the water empties out (approx. 7-10 litres). Leave the valve in the open position until the next time
the heater is used.
• For emptying specially-adapted heating systems, as well as any other water systems in the vehicle, please refer to
the manufacturer’s instructions.
NOTICE
Ensure that the automatic check valve
(see Figure 5.21) is open and is allowing air to enter the
boiler when it is being drained and that the hose is not
blocked.
• Draining the hot water tank in the heating system using the combined safety/drain valve:
13
GB
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
The heating system and its plumbing components should always be drained of fresh water when there is a risk of
freezing and when the vehicle is not in use.
The warranty does not cover frost damage.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Only specially hoses rated for use with LPG should
be installed with this system. The use of other types
of hose may result in hose failure and leakage. Hoses
must be changed by a trained professional.
NOTICE
The LPG system must be checked regularly (preferably
once a year) by a professional to help ensure that there
are no leaks from connections or hoses.
1:8 STORAGE AND WINTERIZATION
For this reason it is advisable to follow the recommendation(s) below if the heating system is to be stored in a freezing
environment or for long periods of time. At the start of the winter season or before traveling to a location where freez-
ing conditions are likely, the heating must be winterized.
Winterize as follows:
• Drain the hot water tank and its plumbing components in the heating system, refer to section 1:7 “Draining the hot
water tank in the heating system using the combined safety/drain valve”.
Also:
• Turn off the main power supply (12V) to the heating system. The main power supply should always be switched off
when the vehicle is not being used.
• Turn off the LPG supply tank.
• When washing the vehicle, take care not to get water in the ue.
1:9 MAINTAINING THE HEATING SYSTEM
Repairs must be performed by a qualied service technician. Verify proper operation after servicing.
1:10 LPG CONNECTIONS AND HOSES
Rubber hoses have a propensity to dry out and crack and therefore LPG hoses must be changed according to national
regulations, at least once every 5 years. Check the date stamp on the hose.