TETCO ION Series Compact Horizontal Packaged unit image 5 year warranty

ION Series Compact Horizontal Packaged

Meet the next generation horizontal geothermal system. The ION Series Compact Horizontal has an all new design that takes advantage of the best technologies. Its small cabinet is the most striking feature. ZS/ZT models are perfectly sized for tight spaces or suspending above a ceiling.

Internally, state-of-the-art components work together to reduce noise and vibration, resulting in ultra-quiet operation, while achieving high efficiencies. Ease of installation and service are features of every TETCO model, and the ZS/ZT horizontal is no exception. Its lightweight cabinet, removable panels, and hinged control box make this unit an HVAC technician's best friend.


  • Copeland 2-stage scroll compressor
  • All-aluminum microchannel air coil
  • Foam enclosed braze plate heat exchanger
  • Sound and vibration absorbing compressor isolation pads
  • Field convertible for side or end discharge with left or right return
  • Digital controls with enhanced unit protection
  • UL GREENGUARD Gold certified foam cabinet insulation
  • Hinged control box for easy internal service
  • Airtight blower section
  • ECM blower motor standard (2-stage)
  • Optional desuperheater (hot water generator)
  • Meets ENERGY STAR requirements
  • TETCO Residential Warranty coverage


Model Capacity Cooling Heating
Btu/hr EER Btu/hr COP
TZS006 208/230V Full Load 6,900 17.1 5,200 3.5
Part Load - - - -
TZS006 265/115V Full Load 6,500 16.2 5,000 3.3
Part Load - - - -
TZS009 208/230V Full Load 9,600 16.7 7,500 3.5
Part Load - - - -
TZS009 265/115V Full Load 9,200 15.9 7,100 3.3
Part Load - - - -
TZS012 Full Load 11,100 14.1 9,100 3.2
Part Load - - - -
TZS015 Full Load 15,300 19.2 11,100 3.8
Part Load - - - -
TZS017 Full Load 18,300 18.6 13,400 3.7
Part Load - - - -
TZS018 Full Load 22,100 25.0 18,400 4.3
Part Load - - - -
TZS024 Full Load 26,900 24.8 24,000 4.4
Part Load - - - -
TZS030 Full Load 32,500 25.5 27,100 4.5
Part Load - - - -
TZS036 Full Load 40,200 23.9 35,500 4.4
Part Load - - - -
TZS042 Full Load 46,100 26.5 40,600 4.7
Part Load - - - -
TZS048 Full Load 52,300 22.9 48,900 4.2
Part Load - - - -
TZS060 Full Load 63,200 22.4 61,700 4.4
Part Load - - - -
TZS072 Full Load 73,300 21.5 71,500 4.2
Part Load - - - -
TZT024 Full Load 26,800 19.8 18,100 4.0
Part Load 20,700 28.8 14,900 4.3
TZT036 Full Load 38,200 19.9 27,600 4.1
Part Load 28,900 29.8 21,200 4.4
TZT048 Full Load 49,800 18.3 37,900 3.9
Part Load 39,700 26.6 29,600 4.3
TZT060 Full Load 61,200 18.7 48,100 3.9
Part Load 47,300 26.9 34,200 4.1
TZT072 Full Load 70,400 18.0 57,900 3.8
Part Load 57,100 25.2 47,600 4.2
Unit Notes
  • ZS data shown with PSC motor. ZT data show with ECM motor.
  • Rated in accordance with ISO Standard 13256-1, which includes pump penalties.
  • Heating capacities based on 68.0°F DB, 59.0°F WB entering air temperature.
  • Cooling capacities based on 80.6°F DB, 66.2°F WB entering air temperature.
  • Entering water temperatures Full Load: 32°F heating / 77°F cooling.
  • Entering water temperatures Part Load: 41°F heating / 68°F cooling.


Unit air pad (plastic or foam)

The unit air pad creates a buffer between the unit and the home. This buffer prevents any vibration from the unit to be transmitted into the home which improves the already quiet operation of the unit.

Auxiliary internal electric heater

Adds that little bit of extra heat on those few coldest days. Also helps to balance the system size by balancing out those few extreme days. With a standard stab-in design, you don't have to drop the blower to install.

Auxiliary external electric heater

Adds that little bit of extra heat on those few coldest days. Also helps to balance the system size by balancing out those few extreme days. These heaters are installed in the supply air duct outside of the unit. Mostly used on horizontal style equipment.

Flow centers - pressurized

Circulates the fluid through the unit and the geothermal loop field. These types form a completely closed system.

Flow center - non-pressurized

Circulates the fluid through the unit and the geothermal loop field. This type of system uses an expansion tank that can be topped off should the loop require it due to thermal expansion.

EWC zone control

These highly sophisticated controls work with dampers in the ductwork to create multiple zones throughout the house. You can utilize one unit, but have different temperatures in each zone. The control panel controls both the unit, and the zone dampers.

Programmable thermostat

Keeps the home more comfortable by operating the unit on a set schedule and temperature range. This also saves on energy costs by setting the unit back while the home is unoccupied.

Non-programmable thermostat

Designed to take maximum advantage of the multi-stage functionality of the unit. This allows the unit to achieve maximum savings by only operating at the right range to match the current weather.

Electrostatic filter (washable)

This type of filter is a permanent media filter that can be washed from time to time as needed. This eliminates the need to buy new filters.

Electronic 24 volt air cleaner

This type of filter uses an electrically charged media to increase filtration performance. This improves indoor air quality by removing more particles from the airstream. This filter requires the occasional media replacement.

Disposable pleated filter

This type of filter uses a pleated media to remove dust and other particles from the air stream. It is important to check these filters regularly and replace them as needed.