Specifications

I. INTRODUCTION TO ECONAR
HEAT PUMPS
Enertech Global, LLC, is home to ECONAR geothermal heat
pumps, a brand that has been in Minnesota for more than
twenty years. The cold winter climate has driven the design of
ECONAR heating and cooling equipment to what is known as
a "ColdClimate" geothermal heat pump. This cold climate
technology focuses on maximizing the energy savings
available in heating dominated regions without sacrificing
comfort. Extremely efficient heating, cooling,
dehumidification and optional domestic hot water heating are
provided in one neatly packaged system.
Enertech produces three types of ECONAR heat pumps:
hydronic, which transfers energy from water to water; forced
air, which transfers energy from water to air; and
combination, which incorporates the hydronic heating unit
into a forced air unit. Geothermal heat pumps get their name
from the transfer of energy to and from the ground. The
ground-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 ground's energy supplied by
the sun and uses it to heat your home. Since the process only
moves energy, and does not create it, the efficiencies are three
to four times higher than most efficient fossil fuel systems.
Safety and comfort are designed into every ECONAR
geothermal heat pump. Since the system runs completely on
electrical energy, the entire home can have the safety of being
gas-free. The best engineering and quality control is in every
heat pump. Proper application and correct installation will
ensure excellent performance and customer satisfaction. The
Enertech commitment to quality is written on the side of every
ECONAR heat pump built. Throughout the manufacturing
process, the technicians who assemble 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 ensure system
quality.
This guide discusses the ECONAR Two Stage Air Handler
Unit for use with a Two Stage Compressor Unit on Two
Stage Split System geothermal heat pump applications. The
pre-charged system uses R-410A, an environmentally friendly
refrigerant; and has factory-installed internal Thermostatic
Expansion Valves.
WARNING – Service of refrigerant-based equipment can
be hazardous due to elevated system pressures and hazardous
voltages. Only trained and qualified personnel should install,
repair or service. The installer is responsible to ensure that all
local electrical, plumbing, heating and air conditioning codes
are followed.
WARNING – INJURY OR DEATH CAN RESULT
FROM EXPLOSION WHEN OXYGEN IS USED TO
PURGE A REFRIGERANT SYSTEM. Never use air or
oxygen to purge or pressure test the refrigerant system.
Oxygen reacts violently with oil, and mixtures of air and
R410A may be combustible at pressures above 1 atmosphere.
WARNING – ELECTRICAL SHOCK CAN CAUSE
PERSONAL INJURY OR DEATH. Disconnect all power
supplies before installing or servicing electrical devices. Only
trained and qualified personnel should install, repair or service
this equipment.
CAUTION –Verify refrigerant type before servicing. The
nameplate on the heat pump identifies the type and the amount
of refrigerant. All refrigerant removed from these units must
be reclaimed by following accepted industry and agency
procedures.
CAUTION – R410A refrigerant requires extra precaution
when service work is being performed. Invasion into the
refrigerant system must be a last resort. Ensure all other
diagnosis and methods have been used before attaching
refrigerant instruments and before opening the refrigerant
system. Synthetic oil (POE) is extremely hydroscopic,
meaning it has a strong chemical attraction to moisture. Brief
exposure to ambient air could cause POE to absorb enough
moisture that a typical vacuum may not remove.
Note – Performance values are +/-10% and are subject to
change without notice.
COMMON ACRONYMS
ACU Air Coil Unit
AHU Air Handler Unit
CFM Cubic Feet per Minute
CU Compressor Unit
ECM Electronically Commutated Motor
FPT Female Pipe Thread
MPT Male Pipe Thread
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