Table of Contents
Model Nomenclature 3
Storage 4
Pre-Installation 4
Horizontal Installation 5
Field Conversion of Air Discharge 7
Duct System Installation 8
Condensate Piping Installation 8
Vertical Installation 9
Water Connections 11
Ground Loop Applications 11-12
Open Loop - Ground Water Systems 13
Water Quality Standards 15
Hot Water Generator 16-18
Electrical - Line Voltage 19
Electrical - Power Wiring 20
Electrical - Low Voltage Wiring 21
Low Water Temperature Cutout Selection 21
Water Valve Wiring 22
Thermostat Wiring 23
ECM Blower Control 24-25
Blower Data 26-28
CXM Controls 29
CXM Control Features 30-32
Unit Commissioning
and Operating Conditions 33
Unit and System Checkout 34
Unit Start-Up Procedure 35
Unit Operating Conditions 36-41
Preventive Maintenance 42
Troubleshooting 43-44
Functional Troubleshooting 45-46
Troubleshooting Form 47
Warranty 48
Revision History 52
GT-PX Series (50YDV, 50YDH, 50YDD Models) GT-PG Series
(50YEV, 50 YEH, 50YED Models)
Installation, Operation and Maintenance Instructions
Residential Horizontal & Vertical Packaged
Geothermal Heat Pumps
97B0046N03
Revised 4 Jan., 2012
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