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
heating
and cooling
equipment to
what
is known as a
"Cold
Climate"
geothermal
heat
pump.
This
cold
climate
technology
focuses on maximizing
the onergy savings available
in
heating dominated regions without
sacrificing comfort.
Extremely efficient
coolilg, dehumidification and
optional domestic hot water heating are also
provided
in
one
neatly
packaged
system.
Geothermal heat
pumps get
their name from the transfer
of heat 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 create it, the efficiencies are
three to four times higher than the most efhcient fossil
fuel systems.
ECONAR
produces
three types of
GeoSource
2000 heat
pumps:
forced
air
heat
pumps,
which transfer
heat from
water to air; hydronic heat
pumps,
which transfer heat
from water to water;
and combination
heat
pumps,
which
incorporate
the
hydronic
heating of a
water
to
water
unit
into aforced air unit. This
guide
discusses the forced air
unit.
Safety and comfort are both inherent to, and designed
into
ECONAR Energy
System's
geothermal
heat
pumps.
Since the system runs completely on electrical energy,
your
entire home
can
have
the safety of being
gas
free.
The best engineering and
quality
confrol is built into
every ECONAR heat
pump
built.
Proper
application aad
correct installation will
assure excellent
performaace
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
fulI run
test where the
per{ormance
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 of refrigerant
based equipment
can be
hazardous
due to system
pressure
nd 230 volt
electrical energy.
Only trained
or
qualified
service
personnel
can
install,
repair
or service refrigerant equipment.
I
Warning
-
Tum offthe
main
switches before
performing service or maintenance to this unit.
Electrical
shock can cause
personal
injury. The installer is
responsible
to see
that
al1
local
electrical,
plumbing,
heating
and air conditioning codes are followed.
II.
UNIT
LOCATION/
MOUNTING
Locate
the unit
in
an
indoor
area
where
the arnbient
temperature
will remain
above
451F.
Servicing of the
heat
pump
is done
primarily
from the front. Rear access
is desirable and should be
provided
when
possible.
A
field installed drain
pan
is required under
the entire unit
where accidental water
discharge could damage
surrounding
floors, walls or
ceilings.
VCAUTION
-Do
not tip units on their side during
transportation
or installation, or
severe
internal damage
may
occur.
Units must be
mounted
on a
vibration-absorbiag
pad
slightly
larger than
the base to
provide
isolation
between
the unit and the floor. Water supply
pumps
should not be
hard
plumbed
directly to the unit with copper
pipe;
this
could transfer vibration from the water
pump
to the
refrigeration circuit, causing a resonating sound. Hard
plumbing
could
also transfer vibration noise from the unit
through the
piping
to the
living
space.
eNote:
Keep alI doors and screws
installed
on unit
while moving unit and
installing
ductwork. This
will help
ensure that the unit stays square, allowing for easier
removal of doors after the ductwork
is
attached.
VCAUTION
-
Before driving screws into the cabinet,
check on the
inside
of the unit to be sure the screw
will
not hit electrical or refrigeration lines.
III. DUCT
SYSTEM/BLOWER
For the
duct system,
metal
ductwork should be used.
Flexible connectors are required for discharge and return
air duct
connections
on a
metal
duct system. For
acceptable duct sizes, see Table 1.
Ifthe duct system
is installed
in an uninsulated space, the
metal ductwork should be insulated on the outside to
prevent heat loss
and
to absorb noise.
If the
unit
is
connected to existing ductworh
this
ductwork must have the
capacity to handle the air volume
required
by the
heat
pump.
Undersized duct work will
cause noisy
operation and
poor
operating
efficiencies due
to lack of affiow.
The GeoSource 2000 forced air heat
pumps
use a 230
Volt
three speed blower. For maximum
airflow, the
2
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