A.O. Smith Upsilon User Manual

Installation and Service Manual Upsilon-Series
26
The appliance produces a white wisp of condensation (pluming). This wisp of condensation
is harmless, but can be unattractive, particularly in the case of outlets in outside walls.
At this time there are 2 different ways of connecting the ue gas/air intake system,
parallel or concentric. See chapter 7.1 and 7.2 how to convert the boiler connection to
the desired option.
ø100mm
A
inm
UB70 Maximumstraightlength100 63
87° bend resistance length -1,8
45° bend resistance length -0,9
UB110 Maximumstraightlength100 35
87° bend resistance length -1,8
45° bend resistance length -0,9
UB140 Maximumstraightlength100 12
87° bend resistance length -1,8
45° bend resistance length -0,9
ø100/150mm
B
inm
UB70 Maximumstraightlength100/150 25
87° bend resistance length -2,6
45° bend resistance length -1,1
UB110 Maximumstraightlength100/150 15
87° bend resistance length -2,6
45° bend resistance length -1,1
UB140 Maximumstraightlength100/150 8
87° bend resistance length -2,6
45° bend resistance length -1,1
Parallelfluesystem
Concentricfluesystem
Maximum ue length for individual ue gas outlet table 7.4.b
100/150 = 350mm
Dismantlement and shorten pipes gure 7.4.b
Example:
An UB 70 with a
concentric ue gas system
ø100/150mm has according
to the table a maximum ue
straight length of 25m In the
system that is going to be put
in there are 2 x 45° bends, so
the maximum ue gas length
is
25 – ( 2 x -1.1 ) = 22.8
meters.
Cutting the concentric pipe goes as follows:
- Take out the inner tube by turning it until it releases from its security position;
- Cut just as much from the air intake part as from the ue gas part;
- Take off the burrs from the cutting edge to prevent cutting the seals;
- Click the pipes back together again.
Use special grease to simplify the tting
When mounting the ue gas system, pay attention to the ow direction. An arrow on the
product points this out. It is not permitted to mount a system upside down and will lead
to complaints.
Refer to table 7.4.b for maximum applicable pipe length.

A.O. Smith Upsilon Specifications

General

Brand	A.O. Smith
Model	Upsilon
Category	Boiler
Language	English