Unical RTN 24, Installation, Use And Maintenance Manual

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Installation info
fig. 7
2.2.2 - POSITIONING THE BOILER
Every boiler is supplied with special “MOUN-
TING JIG” with which the pipes for connec-
tion to the system, D.H.W. and gas can be
positioned when the hydraulic system is being
laid out and before the boiler is installed.
This MOUNTING JIG, comprising a sheet of
strong paper which must be fixed to the wall
chosen for the installation of the boiler, gives
all the indications needed to make the holes
in the wall using two screws with expanding
dowels.
Use the lower part of the MOUNTING JIG to
mark the exact point of the connection of the
gas supply, cold water supply pipe, D.H.W.
outlet, C.H. flow and return.
When choosing the position of the boiler:
-
refer to the indications given in the section
“Flue gas evacuation system “.
- leave a clearance of 50 mm on each side
of the boiler to facilitate maintenance ope-
rations.
- check that the wall is suitable.
- avoid fixing the boiler to thin partitions.
- avoid installing the boiler above applian-
ces which might affect operation when in
use (cookers which produce greasy ste-
am, washing machines, etc.)
- avoid installing natural draught boilers in
corrosive or very dusty atmospheres such
as hairdressers’, laundrettes, etc. as the
life of the boiler components could be si-
gnificantly shortened.
L
M = C.H. system
flow
C = D.H.W.
outlet
G = Gas
F = Cold water
inlet
R = C.H. system
return
S = Safety valve
discharge
Ø L mm
= 3/4'' 144
= 1/2'' 144
= 3/4'' 153,5
= 1/2'' 144
= 3/4'' 144
= 195,5
For IVEN 04 TFS
Since the temperature of the wall
on which the boiler is installed
and the temperature on the sur-
face of the coaxial duct do not
IVEN 04 TN
Maintain distance of at least 200
mm on the sides with wall which
have inflammable materials.
CONNECTION POSITION SEEN FROM ABOVE
MOUNTING JIGS FOR BOILER CONNECTIONS
increase, in normal operating conditions, more
than 60 K, it is not necessary to keep a mini-
mum distance from inflammable walls.
For boilers with dual suction and exhaust ducts,
place insulating material between the wall and
the pipe in the case of inflammable walls and
wall crossings.
195.
5
15
3.
5
144
M C G F R
Filling of
C.H. system
Safety
valve discharge
85 85