suitable temperature range is from 13°C to
30°C. For temperatures less than 13°C, the use
of propane should be considered.”
For this reason, Alde recommends using
propane gas for all year round gas heating.
LPG cylinders contain both gas and liquid
forms. When the cylinder is lled, high pressure
transforms the gas into liquid. The liquid
reverts to gas when the valve on the cylinder
is opened.
LPG is a ammable gas. It can be a re and
explosion hazard if stored or used incorrectly.
Store cylinders vertically and securely, to
prevent them from toppling.
Do not mount your LPG cylinder horizontally
or use liquid phase gas cylinders. Liquid–gas
explosion may result. Read the product label
or contact product manufacturer for details.
LPG is heavier than air. Should a gas leak occur,
oor vents in a caravan or motorhome should
allow the gas to escape from the vehicle. For
this reason, always ensure oor vents are
unobstructed.
!
The boiler compartment contains the
gas connection, oor vents and the
ue hoses. Do not place stowage in the
boiler compartment.
In the event of a gas leak, or if you smell gas:
• Extinguish all naked ames.
• Open all doors and windows.
• Close all gas valves, including the valve on
the cylinder.
• Do not smoke.
• Do not operate any electrical appliances or
switches.
• Arrange for immediate inspection of the
gas system by a competent person in
accordance with current local regulations.
LPG from the cylinder is reduced in pressure by
a regulator, and is supplied to the boiler at low
pressure (30mbar). Never use an unregulated
high pressure supply.
Where oil and dirt in the gas supply are a
concern, gas lters should be tted to prevent
blockage of the boiler gas valve.
NB: Gas heating must not be used while
driving your vehicle unless a safety shut-off
device is tted to the gas system. Current local
regulations must be adhered to.
Flue
The burning of LPG produces CO² (carbon
dioxide), a non-toxic, asphyxiant gas.
Exhaust ue gas can cause possible burns and
poisoning. Avoid inhaling exhaust ue gas.
!
Do not position awnings, tents or
other enclosures around the ue
terminal.
Air supply is essential for clean
combustion. The air intake is located in
the ue terminal. For best performance,
the ue terminal should be well vented.
If leaving the gas heating unused for
a period, ensure the ue terminal
is covered to prevent pest animals
nesting in the ue.
!
Do not obstruct the ue. Be careful
not to ood the ue when washing the
vehicle.
!
The gas heating must not be used
when refuelling the vehicle at the
service station or related facility.
Maintenance
There is no manufacturer’s service requirement
for the Alde 3020 Compact HE boiler itself.
Current local regulations must be adhered
to. The installation of the boiler should be
inspected annually for gas safety.
LPG hoses should be regularly checked for
signs of damage and should be replaced, at
maximum, after 3 years of use.
Bleed air from the system when newly lled,
when the vehicle has been standing unused for
a period, and before departing on holiday.
The uid level in the expansion tank should
be about 1cm above the MIN mark when cool.
The heat transfer uid (HTF) should be topped
up if below this level, to prevent a break in
circulation. Only top up with compatible HTF.
NB: Never leave the system empty of HTF.
Always replace the HTF in accordance with the
antifreeze product’s lifespan. If in any doubt,
replace the HTF after 2 years.
Failure to maintain the condition of HTF may
result in frost and/or corrosion damage, and is
not covered under warranty.
When the hot water cylinder is in continuous
use, it should be drained and relled once a
month. This recreates the air cushion in the hot
water cylinder that absorbs pressure surges.
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