ClimateMaster Geothermal Heat Pump Systems
THW
3
Residential Products Technical Guide
Tranquility Water-To-Water (THW) Design Features
The THW Series is unlike any other water-to-water heat pump on
the market today. The large operating map of the scroll compressor
allows high temperature operation, up to 145°F [63°C] leaving
load water temperature even at 32°F [0°C] entering source water
temperature. The combination of a coaxial (tube-in-tube) heat
exchanger for the source (ground loop) side and a brazed plate
heat exchanger for the load (heating/hot water) side provides very
high effi ciencies. Integral controls for hydronic heating and domestic
water heating avoid the need for external microprocessor-based
controls for outdoor temperature reset, warm weather shutdown,
staging and other controls.
The THW has an extended range refrigeration circuit, capable of
ground loop (geothermal) applications as well as open loop (well
water) applications. Standard features and factory-installed options
are many. Unique application-specifi c controls make the THW
series ideal for hydronic heating and domestic hot water generation.
The heating-only refrigeration circuit is optimized for high water
temperatures, heating effi ciencies, and capacities.
ClimateMaster’s dual level compressor isolation mounting system,
insulated compressor enclosure, and compressor discharge muffl er
make the THW series one of the quietest water-to-water heat
pumps available. The attractive “Euro-style” cabinet allows the unit to
fi t into any decor.
Application Flexibility
• Capacities 10kW [32,600 Btuh].
• High temperature scroll compressor, up to 145°F [63°C] leaving
water temperature.
• Ultra high effi ciencies (4.2 COP at ground loop conditions; up to
5.2 COP at ground water conditions).
• Built-in programmable controller with Outdoor Temperature Reset
and Warm Weather Shutdown.
• Large, back-lit digital user interface.
• Rugged coaxial (tube-in-tube) “Source” heat exchanger (copper or
cupro-nickel).
• Close approach temperature brazed plate stainless steel “Load”
heat exchanger.
• Dual level compressor isolation and discharge muffl er for ultra
quiet operation.
• Insulated cabinet with foil backed insulation for ease of cleaning.
• Flush-mount FPT fi ttings, secured to the cabinet (no backup
wrench required).
• TXV metering device.
• 12-point low voltage terminal strip for ease of installation.
• ETL safety listing.
• Wide variety of options including internally factory installed
Domestic Hot Water Mode, Load and Source side pumps with
expansion tanks, VSFP (variable speed fl oor pump connection)
controls and cupro-nickel Source Heat Exchanger.
Service & Installation Advantages
• Hinged front access door and 3 removable panels for ease of
installation and service.
• Galvanized steel construction with protective powder coat paint
and stainless steel, hinged front access door.
• EarthPure
®
HFC-410A zero ozone depletion refrigerant.
• Circuit breaker protected 75VA control transformer.
• High and low pressure service ports on refrigerant circuit.
• Accurate refrigerant sensing low temperature protection.
Factory Quality & Certifi cations
• All units are built on our Integrated Process Control Assembly
System (IPCS). The IPCS is a unique state-of-the-art manufacturing
system that is designed to assure quality of the highest standards of
any manufacturer in the water-source industry. Our IPCS system:
- Verifi es that the correct components are being assembled.
- Automatically performs special leak tests on all joints.
- Conducts pressure tests.
- Performs highly detailed run test unparalleled in the
HVAC industry.
- Automatically disables packaging for a “failed” unit.
- Creates computer database for future service analysis and
diagnostics from run test results.
• All units are water run-tested in all modes to insure effi ciency
and reliability.
• Heavy gauge galvanized steel cabinets are epoxy powder coated
for durable and long-lasting fi nish.
• All refrigerant brazing is done in a nitrogen atmosphere.
• All units are deep evacuated to less than 100 microns prior to
refrigerant charging.
• All joints are both helium and halogen leak tested to insure annual
leak rate of less than 1/4 ounce.
• Coaxial heat exchanger, refrigerant suction lines and all water
lines are fully insulated to eliminate condensation problems in low
temperature applications.
• Noise Reduction features include: dual level compressor isolation
and interior foil-faced cabinet insulation.
• Safety features include: high pressure and loss of charge to protect
the compressor, and low temperature protection sensors to
safeguard the heat exchangers. Fault lockout enables emergency
heat and prevents compressor operation until thermostat or circuit
breaker has been reset.
• Standard 10-year limited warranty on all parts with 5-year labor
allowance; Optional additional extended 5-year limited labor
allowance available.
• AHRI/ASHRAE/ANSI/ISO 13256-2 certifi ed.
• ETL listed.
• US EPA “Energy Star” compliant.
• ISO 9001:2000 Certifi ed.
Options & Accessories
• Full Condensing Hot Water Generation With Internal Secondary
Heat Exchanger and Potable Water Circulating Pump.
• Factory Installed “Load” and “Source” Pumps.
• Factory Installed Expansion Tanks.
• Cupro-Nickel Source Water Coil.
• Additional Extended 5-year limited labor allowance.
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