Bailey Approach, Owner'S Manual

Page: 55 / 110

!
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.
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.
!
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, which is not covered under warranty.
Read the product label or contact the product
manufacturer for details.
i
Alde recommends the Truma
AquaStar steriliser products.
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.
i
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.
i
Alde recommends fitting the 3102-002
high temperature TMV.
!
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, which is not covered under warranty.
Draining Freshwater
1. Switch off the water pump.
2. Open all water taps, showers, etc.
3. Open the safety/drain valve by lifting the
yellow tab (Fig.1 [M]): see page 62, or by
turning the blue knob (Fig 1.[K]) 90°.
4. The system will drain directly below the
vehicle through the clear plastic hose on the
safety/drain valve. Check that all water has
emptied out (7–10 litres). Leave the valve in
52
FITTED EQUIPMENT- The Alde Heating System