Alde Compact 3020 HE Instructions d'utilisation et d'installation - Page 7
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FITTING THE AIR INTAKE/
FLUE EXHAUST HOSE
Hose length with roof " ue: min. 2.0 and
max. 3.5 m.
Hose length with wall " ue: min. 0.5 and
max. 2.0 m.
Measure up and cut the required length of
air intake hose (Ø 75 mm). The " ue exhaust
hose (Ø 50 mm) should be cut so that it is
approximately 50 mm longer than the air
intake hose.
Applies to hose lengths over 1 metre in
length. Note that around 20 mm of the hose
length must cover the pipe stub in each
case.
Insert the " ue exhaust hose into the air
intake hose. First ! t the " ue exhaust hose
(B,C 12) to the " ue and secure in place with
a hose clip (B,C 13).
Then slide the air intake hose on top (B,C
14) and secure in place with the other hose
clip (B,C 15). After that, ! t the hoses to the
boiler in the same way. Secure the hose
with pipe clamps (B 16) at centre-to-centre
intervals of 600 mm, or equivalent.
NOTE" Check the routing of the air intake/
" ue exhaust hose to ensure water cannot
collect in it.
FITTING THE EXPANSION
TANK
Fit the expansion tank at least 200 mm
higher than the highest point of the heating
system or boiler. If the expansion tank is
! tted in a wardrobe for example, Alde's pro-
tective housing should be ! tted around the
tank to prevent any accidental splashing of
the " uid coming into contact with clothes.
Leave a space of at least 220 mm above
the expansion tank for ! lling and servicing
purposes.
Fit the expansion tank using the screws and
grommets (D 16) supplied.
Where a circulation pump is ! tted in the
expansion tank, it will be of suction pump
type. Incoming hoses must therefore always
be connected to the pipe underneath the
pump and outgoing hoses to the pipe along-
side it (see Fig. D).
The air vent hose (D 17) should be ! tted in
a fully vertical position and secured in place
with pipe clamps to prevent creasing of the
hose.
The drain hose (D 18) should be ! tted so
that it follows the shortest route from the
expansion tank out through the " oor of the
vehicle. Cut the hose obliquely under the
vehicle at a 30° angle away from the direc-
tion of travel.
Once the heating system has been ! lled,
the circulation pump should be ! tted (D 19)
in the tank, and secured in place with the
nut (D 20).
CONNECTION TO THE HEA-
TING SYSTEM
The LPG boiler's connection pipe to the
heating system (Ø 22 mm) is located on
the side of the boiler. The red marking is
for the outgoing feed pipe (F 21) and the
blue for the incoming return pipe (F 22).
Use the assembly set with automatic
bleeder and automatic circulation stop for
! tting to the boiler. Connect the outgoing
pipe with the rubber T-connector (F 23).
The drain hose from the bleeder (F 24)
must be routed through the " oor of the
vehicle. Cut the hose obliquely at a 30°
angle away from the direction of travel.
NB" If a circulation pump (F 25) is ! tted it
must be connected to the return pipe.
The rubber connections must be secured
with band clips. A thin layer of Permatex
Form-a-Gasket no. 3 should be applied
to the joints of the rubber connections to
seal them.
NB" The heating system reaches a high
temperature when running. The heating
pipes should be insulated or enclosed
to prevent any risk of the driver or pas-
sengers coming into contact with them
during the journey.
NB" Copper piping must not be used in
the system. It is best to use aluminium
pipes only.
Do not mix different metals, as this can
lead to serious corrosion damage.
CONNECTION TO THE
FRESHWATER SYSTEM
For the hot water heater to function, it
must be connected to the vehicle's fres-
hwater system.
The freshwater connections are located
on the side of the boiler. The blue marking
is for incoming cold freshwater and the
red for outgoing hot water.
A safety valve must always be connected
to the hot water heater. The safety valves
are available in two different models (see
the section on the domestic hot water
heater). If incoming pressure to the hot
water heater exceeds 0.3 MPa (3 bar), a
pressure reducing valve must be instal-
led. The pressure reducing valve must be
set to a maximum of 0.3 MPa (3 bar) and
have a minimum capacity of 5 dm3/min.
External safety valve with built-in
drain
The safety/drain valve (Alde part no. 3000
473) must be ! tted to the cold water hose
entering the heater.
Drill a Ø 16 mm hole in the " oor for the
drain hose, and then screw the safety/
drain valve securely into the " oor.
Fit the hose connection (F 26) on the
incoming nipple.
Connect the safety/drain valve to the hose
connection. NB" The mounting position of
the safety/drain valve must not be higher
than the hose connection.
Then ! t the elbow connection with built-in
bleed valve on the outgoing connection
(F 27).
This should be ! tted in the same way as
the hose connection. Fit the bleed hose
(G 28) to the valve's hose stub, and then
pull the hose out through the " oor. Cut the
hose obliquely under the vehicle at a 30°
angle away from the direction of travel.
The hose must not be blocked.
Only use an original Alde valve.
LPG CONNECTION
Remove the protective cap from the gas
pipe on the boiler (F 29).
The LPG installation for the boiler should
be executed using 8 mm pipe connected
to the boiler's gas pipe with a compres-
sion coupling.
When routing the pipe, bear in mind the
need to remove the boiler for servicing
purposes.
The boiler should be connected to an LPG
cylinder with a type-approved reducing
regulator and a pressure of 30 mbar.
NB" Always comply with national regu-
lations for the LPG installation.
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