FITTED EQUIPMENT
117
! WARNING:
• The boiler must not be switched on if
there is no heat transfer fluid (HTF) in the
system.
• Always drain down the freshwater system
if there is risk of frost; in winter, for
example. You may continue to use the
boiler with no freshwater in the system, as
required; no damage can result
• Always replace the HTF in accordance
with the antifreeze product’s lifespan. . If in
any doubt, replace the HTF after 2 years.
• Only sterilise the freshwater system with a
product suitable for stainless steel.
• Do not place stowage in the boiler
compartment.
• Do not position awnings, tents or other
enclosures around the flue terminal.
• Do not obstruct the flue. Be careful not to
flood the flue when washing the vehicle.
• The gas heating must not be used when
refuelling the vehicle at the service station
or related facility.
Domestic Hot Water
Being a combi-type boiler, the Alde 3020
Compact HE has an integrated, stainless steel
hot water cylinder that holds approximately 8.4
litres of freshwater.
The boiler can produce around 12 litres of
40°C warm water per 30 mins (at a cold
water temperature of 10°C). If only the electric
heating is used, this capacity is slightly
reduced.
The hot water should not be used for drinking
or cooking.
Always flush out the hot water cylinder before
use, especially when it has stood empty for
some time.
Note: Any steriliser products should be
suitable for use with stainless steel.
Avoid steriliser products containing sodium
hyperchlorite, for example, as these will cause
severe corrosion damage to the hot water
cylinder. Read the product label or contact the
product manufacturer for details.
When the hot water cylinder is in continuous
use, it should be drained and refilled once a
month. This recreates the air cushion in the hot
water cylinder that absorbs pressure surges.
Note: If continuously using the hot water
cylinder in a hard water area, fit an inline
scale inhibitor to minimise the effects of
limescale
Target hot water temperature is greater
than 50°C in normal operation, to prevent
the growth of Legionella. Over 50°C , the
hot water will be heated to the maximum
achievable temperature at the time. This
allows the hot water to achieve disinfection
temperatures, and increases warm water
performance.
If scalding hot water temperatures are a
concern – such as with the young, elderly or
infirm – thermostatic mixing valves (TMVs)
can be fitted, and may be required by local
regulations.
! WARNING: Always drain down and
completely empty the hot water cylinder
when there is risk of frost, unless the vehicle
is explicitly stated to be self-winterising by
the vehicle manufacturer.
Failure to drain the hot water cylinder when
there is a risk of frost may result in frost
damage, and is not covered under warranty.
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