Condensate Drain; Earth Loop Water Piping - Econar GeoSource Vara GV Series Installation And Operating Instructions Manual

IIL
CONDENSATE
DRAIN
Condensate
traps
are
built into every GeoSource
Vara
vertical unit,
so an
external trap should not
be
installed.
Vertical units must be level
to
insure
proper
condensate
drainage. Horizontal
units require
an
external condensate
trap
in
order to drain water
from the heat
pump.
Horizontal units must
also be
mounted level
in
order
for
the condensate
to drain.
On
horizontal
units, the condensate
line
as
it
leaves the
U
bend
of
the condensate
trap must be at least
3"
below the
base
of
the heat
pump.
This requires the
U bend to
be
6"
below
the
unit to give
the
upward
portion of
the U bend
a
3"
lift.
The condensate trap should be
vented after
the
U
bend. The condensate
line
should be
pitched
away
from
the
unit
a
minimum of
1/8" per
foot.
If
the
unit produces
an
odor
in
the
cooling mode,
the condensate
ffap or
line
may be
plugged, or
ttre
unit may
not be
pitched correctly.
Bleach may
be
poured down
the condensate
drain
in
the
heat
pump to
kill
any
bacterial
growth in
the condensate
line.
Vented
condensate
traps
aro
necessary to break the
negative
pressure in the air chamber
and
allow the
condensate to
flow.
Construct
condensate traps
to
the
following
diagram.
Air
vo
3/4"Minim
diMcta
Hat pmp bse
6"
Drop To druifl
wi*r
1/8"
prfoot
-i.i-,-
pitr,h
@
3" Rise
Figure
1
-
Condensate
Drain - Horizontal Units Only
TO/IROM
CLOSED
LOOP
IV.
EARTH LOOP WATER
PIPING
Since
water is the
source
of
energy
in
the
wintertime
and
the
energy siak
in
the
summertime, good water supply is
possibly
the
most important requirement of
a
geothermal
heat
pump
sy3tem
installation.
There
are
two
common
types
of water supplies, closed loop
systems and
open
loop
systems.
A.
Closed
Loop Applications
A
closed
loop
system
recirculates
the same
water/antifreeze solution through
a
closed system
of
underground high-density polyethylene
pipe.
As the
solution
passes
through the
pipe, it
collects heat
(in
the
heating mode) that
is
being transferred
from
the
relatively
warm srrrounding soil through
the
pipe
and
into
the
relatively cold solution. The solution is circulated to
the
heat
pump,
which pulls
heat
out of the solution,
and
then
back through the ground to extract more
heat
from
the
earth.
The GeoSource
Vara is
designed
to operate
on either
vertical or horizontal
closed
loop applications. Vertical
loops
are
typically installed
with
a
well
drilling rig
up
to
200 feet
deep
or
more. Horizontal
systems are
typically
installed
with excavating or trenching equipment
approximately six to eight feet
deep,
depending on
geographic location
and
length
ofpipe
used. Earth loops
must be sized
properly for
each
particular geographic
area,
soil type,
and
individual capacity requirements.
\
f
- -ll
___J
Figure
2
-
Closed
Loop
Water Plumbing
4
PmpPAK
ll
il
il
Preroey'
Tqrahre
en)Pdk
IN
OUT
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