19
hanger rods
c
opp
er
p
i
p
es
saddle
b
ar
hanger rods
(
threaded
)
nuts
ceiling
em
bedde
d into
ceiling
w
ith
w
all
p
lugs
SADDLE SUPPORT
Figure 5.09: Pipe support using saddle
co
pp
er
p
i
p
es
b
rac
k
et
w
all
Figure 5.09: Pipe support using angle bracket
ANGLE BRACKET
6.9: Horizontal Runs
It
is only necessary to insulate the cold suction
pipe.
Do not insulate the hot liquid
pipe.
If
the
expan-
siondevice is located in the outdoor unit, the liquid pipe must also be insulated.
However,
for heat
pump
units, it is
important
for
both
pipes
to
be
insulated. This is
because
of the
coldambient
temperatures
when
the unit is running in heat mode. The insulation
will
prevent
heat loss
to the ambient along the hot pipe line.
Insulation
can
be
done easily
by
inserting the
copper
pipes
into elastomeric insulation
pipes.
Example
s
are
and Superlon
.
Use the correct insulation sizes to the corresponding
copper pipe size. Do
not use a larger insulation as this
will
create an air
space
which
will
then create condensation
(sweating)
.
Cut
sections of the insulation must
be
glued or
taped
together over the
pipes,
e.g. at
bends
and joints.
Recommended insulation
: k-value of 0.034 – 0.037 W/m.K
Minimum insulation thickness: ½” (12.7 mm)
Do not insert
two
copper
pipe
s into a single large
pipe
insulation.
Such
practice
will
cause the system
to lose
performance
due to heat gain or heat loss
because
the
pipe
surfaces are not in good contact
with
the insulation.
Cross
heat transfer
between
a cold and hot
pipe
can occur due to the close
proximity
of the two pipes. Potential sweating proble
m
s may also occur due to the created air space within.
Normally,
refrigerant
pipes
are run
above
the ceiling
space.
In
order to do such
horizontal
runs, it is necessary
to have
supports
at certain intervals so that the
pipes
do not sag.
Supports
in the form of saddles or angle
brackets may be used. Multiple pipes can share the same support.
6.8: Pipe Insulation
Piping Installation
The
following
section
will
provide
some guidelines for refrigerant
copper
pipe
installation,
especiall
y in
relation to long
piping
jobs.
Since
the
copper
pipe
is a
material, care must
be
taken
to ensure
proper installation.
Summary of Contents for SON Series
Page 1: ...Installation Operationand Service Manual _SONSeries ...
Page 2: ...02 ...
Page 4: ...1 0 SAFETY INSTRUCTIONS 1 1 WARNINGS 04 ...
Page 9: ...09 4 0 ELECTRICAL PHYSICAL DATA _SON ROTARY ...
Page 10: ...10 6 PHYSICAL AND ELECTRICAL DATA 4 1 TECHNICAL SPECIFICATION _SIN _SON ROTARY UNITS ...
Page 13: ...13 5 0 UNIT DIMENSION _SON SCROLL UNITS ...
Page 16: ...16 6 5 Things you may do ...
Page 17: ...17 ...
Page 26: ...26 7 4 Liquid Line 7 5 Minimize Bends ...
Page 28: ...28 9 0 REFRIGERANT CHARGE 0 4 0 6 0 3 9 1 Charging by Weight 9 2 Contamination ...
Page 29: ...29 ...
Page 30: ...30 10 2 Grounding 10 3 Control Wiring 10 01 Power Wiring 10 0 ELECTRICAL WIRING ...
Page 32: ...32 12 0 ELECTRICAL WIRING DIAGRAM Rotary RSON Rotary ...
Page 33: ...33 12 2 ELECTRICAL WIRING DIAGRAM Scroll RSON Scroll Single Phase ...
Page 34: ...34 12 1 ELECTRICAL WIRING DIAGRAM Scroll RSON Scroll Three Phase ...
Page 35: ...35 13 0 TROUBLE SHOOTING 13 1 Flow Chart ...
Page 36: ...36 14 0 OPERATION 18 45o C 20 a b a b c ...
Page 37: ...37 ...
Page 38: ...38 ...
Page 39: ...39 20 ...
Page 40: ...40 ...
Page 41: ...41 14 1 Error Code ...
Page 42: ...Notes ...
Page 43: ...Notes ...
