Econar GeoSurce Vara 2 Plus GV Series Lnstallation And Operating Lnstructions page 4

I.
INTRODUCTION TO
ECONAR HEAT
PUMPS
ECONAR
Energy
Systems, Corp.
has
been
producing
geothermal
heat pumps in
Minnesota
for
over
fifteen
years.
The cold winter
climate
has
driven
the design
of
ECONAR
Energy System's heatirg
and
cooling
equipment to what is known
as a
"Cold Climate"
geothermal
heat
pump. This
cold climate technology
focuses on
maximizing
the
energy savings available in
heating dominated regions
without sacrificing
comfort.
Extremely efficient cooling, dehumidification
and
optional
domestic hot water heating
are also
provided in
one neatly packaged system.
Geothermal
heat
pumps get
their name
from
the
transfer
ofheat to
and
from
the
earth.
The earth-coupled
heat
exchanger (geothermal loop)
supplies
the source
energy
for heating
and absorbs the discharged energy
from
cooling.
The
system
uses
a
compression cycle; much like
your refrigerator,
to collect
the
earth's energy supplied by
the sun and
uses
it
to
heat
your home.
Since the process
only moves
heat and does
not createit,
the
efficiencies
are
three to
four
times higher
than the most
efficient fossil
fuel
systems.
This guide
discusses the GeoSource
Vara
2
Plr"t*
series heat
pumps that
are equipped with
a
two-step
Scroll
compressor,
a
variable
speed
ECM blower
motor, and
electric
resistance elements
to provide varying
capacities
of heating
and
cooling within
the same
unit.
The unit
also
uses
R-410a,
an
HFC refrigerant that
does not harm
the
earth's
ozone.
Safefy and
comfort
are
both inherent to,
aod designed into
ECONAR Energy System's geothermal
heat pumps.
Since the system runs completely
on electricat
energy,
your entire home
can have
the
safety
ofbeing
gas
free.
The
best engineering
and
quality control
is
built into
every
ECONAR
heat
pump
built.
Proper application
and
correct installation
will
assure excellent performance
and
customer satisfaction.
ECONAR's
commitment to
quality
is
written
on the side
of
every
heat
pump
we
build.
Throughout
the
building
process the technicians that
build
each
unit
sign
their
names to
the
quality
assurance label after completing
their
inspections.
As
a
final quality
test,
every unit
goes
through
a
full
run test where the
performance and
operation
is
verified
in both
the
heating
and cooling
modes. No
other manufacturer goes
as
far
as
to run
a
full
performance check to
assure system
quality.
** IMPORTANT**
Service
ofrefrigerant-based
equipment
can be hazardous
due
to
system pressure and 230 volt
electrical
energy.
Only
trained
or qualified
service
personnel
can
install,
repair or
service
refrigerant equipment.
&
Warning:
Tum
offthe
main switches before
performing
service or maintenance to this
unit.
Electrical
shock can cause
personal injury
or
death.
The installer is
responsible to
see
that alI
local
electrical,
plumbing,
heating
and air
conditioning
codes are
followed.
II.
GeoSource
Vara 2 plus'"
FEATURES
The GeoSource
Yara
2
Plus"
is one
of ECONAR's
most
advanced
geothermal
heat
pumps.
The
design
of
this system took into
account issues such
as
environmental impact, power supply
efficiency, cold
climate home construction,
and
global
energy trends.
This unit
offers unique
and
ianovative
features to
optimize
the
efficiency, comfort
and
reliability
of
a
home
space
conditioning
system.
The GeoSource
Vara
2 Plr"'"
is
a
3-Heat/ 2-Cool unit,
which utilizes
a
two-step modulating compressor to
provide forced air heating
and
cooling of
the
living
space.
It
is available with or without
a
factory-installed
desuperheater,
which provides supplemental domestic hot
water
heating. This
option can
typically
supply up to
65Vo
of
a
home's hot water
needs throughout the year.
A.
Two-Step Compressor Operation
The GeoSource
Vara
2
Plr"t"
heat
pump
uses a
Copeland ScrollrM two-step compressor.
This
compressor
has the
ability
to
be
run
at
full-load
operation, which
provides
l00%o capacity,
or
it
can be run
at
part-load
operation, which provides approximately
7
5Vo
of
full-load
capacity. This technology provides
these very
important
operating
features:
1)
The ability
to be
run
at
part-load capacity,
which
will
handle
the majority of
a
home's heating
and
cooling
needs,
while providing
much more
energy-effi cient operation.
2)
Extended runtimes without intemrptions
to
maintain
the
highest comfort
possible.
3)
High
heating output
and moderate cooling
output
with
staged
capacity
ro
precisely fit
the heating
and
cooling
loads
of
homes in
cold climates.
B.
Variable
Speed
ECM Blower
A
variable
speed
blower
motor is
used on the GeoSource
Yara
2
Plus"
series heat
pump to
keep the three-stage
operation of
the
system operating comfortably
and
efficiently.
The Electronically
Commutated Motor
(ECM)
converts 230 Volt
AC power to DC power
internally.
The DC power
can then be modulated to
turn
the
motor
at
a
variety of
speeds.
The
blower's
speed is
modulated
based on
what
the
thermostat is calling
for. If
the thermostat is calling for
2
f