T Therm Geo TST-***, Installation & Operating Instructions Manual

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12/03/2012
GI301
Two-Stage Split Geothermal Heat Pump
Installation & Operating Instructions
Model: (TST-***)
Application
 Retrofit existing forced air installations
 Dual Heat – combine this geothermal unit and A-coil with standby
gas or oil furnace
 LMC (Load management control), LMC/INT ready
 Tested to UL Standards 1995
Information
The air coil furnished with this product has been tested and certified
with this unit. To maintain the specification performance and product
certification, the air coil shipped with this unit
must be
used.
This unit may not be tax credit eligible when a coil other than the
furnished coil is used.
For optimum performance an ECM blower is recommended. The CFM airflow required in the
specification table must be matched to the compressor stage by the installed furnace blower/air handler.
Since this product requires line sets and air coil installation, an experienced and licensed refrigeration
technician is required.
Domestic Water Heater, Desuperheater
Energy Star promotes the desuperheater and it is offered as an optional item for all TTHERM GEO™
heat pumps. Our exclusive GEO Logic™ control system optimizes the operation of a desuperheater,
operating the systems only when there is adequate energy available to provide heat to the domestic hot
water. However, to maximize the times the desuperheater aides in providing domestic hot water, a hot
water preheat tank is suggested, see Desuperheater section of this manual.
Note
– The GEO Logic control board has various required setup adjustments, see Field Setup section.
DO NOT DESTROY THIS MANUAL. PLEASE READ CAREFULLY AND KEEP IN A
SAFE PLACE FOR FUTURE REFERENCE BY A SERVICE TECHNICIAN.
Important information
Model Number:____________________________
Serial Number:_____________________________
Installing Contractor:________________________