Heat Controller HSS, HTS SERIES SPLIT SYSTEM manual Split Products

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Split Products

HSS Series Split System,

11/2 to 5 Tons

HTS Series Split System,

Two Stage, 2-5 Tons

Outdoor Split

Geothermal Heat Pumps

Installation, Operation &

Maintenance Instructions

Revision: 23 June, 2008

Table of Contents

Model Nomenclature	3
Safety	4
Storage	5
Pre-Installation	5
Equipment Selection	6
Air Coil Match-ups	6-7
Air Handler Selection	8
Installation	9
Water Connections	10-11
Ground Loop Applications	11-13
Open Loop - Ground Water Systems	14-15
Water Quality Standards	16
Refrigeration Installation	17-22
Lineset Information	17
Internal Hot Water Generator	23-24
Hot Water Generator Module	25-26
Electrical - Line Voltage	27-28
Power Wiring	28
Electrical - Low Voltage Wiring	29-31
Low Water Temperature Cutout Selection	31
Water Valve Wiring	31
Thermostat Wiring	31
CXM Controls	32-34
CXM Safety Features	33
Unit Start-Up and Operating Conditions	36
Unit Start-Up
and System Checkout Procedure	37-38
Unit Operating Conditions	39-41
Preventive Maintenance	42
Troubleshooting	43-44
Functional & Performance Troubleshooting	45-46
Refrigerant Circuit Diagram	47
Revision Log	48

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Contents Split Products This page left intentionally blank Model Nomenclature for Indoor Split Series Safety SafetyGeneral Information General Equipment SelectionIndoor Coil Selection HTS GeoMax GeoMax 2 HTS Air Handler Matches for ARI RatingsIndoor Coil Selection For HSS R-22 Units CFMAir Handler Selection Example Removing Existing Condensing Unit Where Applicable InstallationAir Handler Installation Indoor Compressor Section LocationHTS/HSS Installation GROUND-LOOP Heat Pump Applications Piping InstallationGround-Loop Heat Pump Applications Low Water Temperature Cutout Setting CXM ControlFlushing the Earth Loop AntifreezeFluid Volume gal liters per 100’ 30 meters Pipe Approximate Fluid Volume U.S. gal. L per 100 of PipeAntifreeze Percentages by Volume Compressor section must be sealed to prevent entryExpansion Tank and Pump Water Quality StandardsWater Control Valve Flow RegulationWater Well Connections Water Coil Low Temperature Limit SettingErosion and Clogging Water Quality StandardsLine Set Installation Refrigeration InstallationLineset Diameters and Charge Information Evacuation and Charging the Unit Add-On Heat Pump ApplicationsRefrigeration Installation Charging The System Evacuation Of The Lineset And CoilExample R-22 refrigerant Checking Superheat and Subcooling Determining SuperheatDetermining Sub-Cooling Hot Water Generator Typical HWG Installation Indoor Compressor SectionHWG Water Piping Water Tank PreparationWater Tank Refill Initial Start-UpHot Water Generator Module Refrigeration Installation GeoMax 2 HTS Series Electrical Data Electrical Line VoltageHSS Series Electrical Data Electrical Power Wiring HWG Wiring Indoor Compressor Section Electrical HWG WiringLow Water Temperature Cutout Selection Thermostat ConnectionsAccessory Connections Electrical Low Voltage WiringTwo-stage HTS Units Taco ValveTwo-Stage HTS Piping Thermostat InstallationCXM Controls Water coil low temperature FP1 The FP1 thermistor Safety Features CXM ControlAir coil low temperature FP2 The FP2 thermistor temperature Diagnostic FeaturesPage Variable Speed PSC Air Handler CXM Control Start-up OperationY1, Y2, O Stage 2 cooling CXM Thermostat Details Nominal resistance at various temperaturesOperating Limits Unit Starting and Operating ConditionsStarting Conditions Unit OperationUnit Start-up Procedure Before Powering SYSTEM, please check the followingUnit and System Checkout Test Mode Pins Unit Start-Up ProcedureUnit Operating Conditions Water Temperature Change Through Heat ExchangerR-22 HSS Compressor Section Coax Water Pressure Drop GPM 22 HSS Typical Unit Operating Pressures and Temperatures Preventive Maintenance Troubleshooting CXM Process Flow Chart Functional Troubleshooting Functional Troubleshooting Performance Troubleshooting Troubleshooting Form S i d e n t i a l S p l i t 6 0 H z R 2 2 & R 4 1 0 a 08/08