Enertech XT Series Installation & Operation Manual

Water-to-air multi-positional heat pumps
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Installation & Operations Manual
XT MODELS PACKAGED WATER-TO-AIR MULTI-POSITIONAL HEAT PUMPS
20D218-03NN
20D218-03NN

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Summary of Contents for Enertech XT Series

  • Page 1 Installation & Operations Manual XT MODELS PACKAGED WATER-TO-AIR MULTI-POSITIONAL HEAT PUMPS 20D218-03NN 20D218-03NN...
  • Page 2: Table Of Contents

    Table of Contents Section 1: Model Nomenclature Model Nomenclature Decoder ............................4 Section 2: Installation Introduction Introduction ..................................5 Pre-Installation Steps ................................. 6 Section 3: Installation Considerations Unit Placement ................................. 7 Section 4: Unit Installation Pre-Installation Checklist ..............................8 Dimensional Data ................................9 ECM Fan Performance - Two-Stage Compressor Units ........................
  • Page 3 Section 8: Electrical Connections High Voltage Single Phase Control Box Connections ......................33 High Voltage Three Phase Control Box Connections ......................33 Auxiliary Heater High Voltage Wiring Entry Locations ........................33 Section 9: Controls Microprocessor Features and Operation ........................... 34 Lockout Board LED Identification ............................
  • Page 4: Section 1: Model Nomenclature

    Section 1: Model Nomenclature Model Nomenclature Decoder XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 5: Section 2: Installation Introduction Introduction

    Un-packaging servicing and filter replacement. Enertech units are mounted to wooden pallets for easy handling during shipment and installation. Units are protected during shipment with durable cardboard corner posts, top and air coil panels.
  • Page 6: Pre-Installation Steps

    Logic Board: Logic Board operates the compressor and Enertech Global has set forth this policy to ensure installations protects unit by locking out when safety switches are engaged. of Enertech Global geothermal systems are done safely and It also provides fault indicator(s).
  • Page 7: Section 3: Installation Considerations

    This helps eliminate vibration noise that could be transmitted through the floor. 3. The installer has verified that all applicable wiring, ductwork, piping, and accessories are correct and on the job site. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 8: Section 4: Unit Installation

    Note: These geothermal unit comes with an ECM Motor. For maximum performance, the blower speed should be set to maintain between 350 and 450 CFM/ton. Use DIP switch for ECM motor adjustments. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 9: Dimensional Data

    All measurements are in inches. * For the source water loop, GeoComfort residential models use 1” double o-ring fittings. GeoComfort commercial models, Hydron Module & TETCO models use 1” FPT fittings. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 10: Ecm Fan Performance - Two-Stage Compressor Units

    1. To enter dehumidification mode, ODD input should be 0 VAC; for normal cooling CFM, ODD input should be 24VAC. 2. Heating CFM is not affected by dehumidification mode. When in dehumidification mode, cooling CFM is 85% of normal cooling CFM. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 11: Unit Physical Data

    35.9 x 24.7 x 1.26 Number Of Rows N/A - Micro-Channel Coil Filter 1” Thick 28 x 30 x 1 28 x 34 x 1 Unit Weight (nominal) - lbs XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 12: Unit Return Air Conversion

    Slight pressure on the rounded portion of the “belly band” will release the catch. (GeoComfort & Hydron Module units only) XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 13: Section 5: Unit Piping Installation Water Quality

    Distilled water and zeolite softened water Enertech recommends a double flush filtering method during are also acceptable. Softened water, although free of hardness purging. When purging, use a 100 micron bag filter until air ions, may actually have increased concentrations of corrosive bubbles are removed.
  • Page 14: Interior Piping

    Hose P/T Ports Source Water Out Source Water In Equipment Pad 2” Polyethylene Foam Note: P/T ports should be angled away from the unit for ease of gauge reading. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 15: Typical Non-Pressurized Flow Center Installation

    Figure 7: Typical Single Unit Piping Connection (Non-Pressurized Flow Center) To/From Loop Field Air Coil Flush Valve Flow Center P/T Ports Hose Source Water Out Source Water In Equipment Pad 2” Polyethylene Foam XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 16: Pressurized Flow Center And Pump Mounting

    XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 17: Condensation Drain Connection

    Figure 9a: Condensation Drain Connection Figure 9d: Right Overflow Sensor Connection Figure 9b: Condensation Drain Drop Part Number Description: ACDT1A EZ-Trap ¾” Kit ACDT2A EZ-Trap 1” Kit XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 18: Flushing & Charging A Pressurized Flow Center

    Flush Cart Design Once piping is completed between the unit, flow center, and The Enertech Manufacturing flush cart has been designed to the earth loop, final purging and charging of the system is effectively and efficiently flush the earth loop and to facilitate needed.
  • Page 19 4. This should only take 5 to 10 minutes to purge the unit. 5. Once this is done, the entire system is now full of water, and the flush cart pump may be turned off. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 20: Typical Non-Pressurized Flow Center Installation

    It also floods the pump shaft, and keeps the pump(s) cool. Failure to do this could result in premature pump failure. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 21: Antifreeze Characteristics

    A 25% brine solution is a minimum required by glycol OBSERVE SAFETY PRECAUTIONS MAY RESULT IN FIRE, manufacturers, so that bacteria does not start to form. INJURY, OR DEATH. NEVER WORK WITH 100% ALCOHOL SOLUTIONS. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 22 Some antifreeze suppliers and manufacturers recommend the use of either de-ionized or distilled water with their products. Some brands are designed to work with tap water. Consult the antifreeze manufacturer’s technical data. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 23: Apsma Pump Sharing Module

    P/T Ports Source Out Source Out Source Out P/T Ports P/T Ports P/T Ports Source In Source In Source In Equipment Pad Equipment Pad 2” Polyethylene Foam 2” Polyethylene Foam XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 24: Open Loop Piping And Connections

    Use single solenoid and 2” Polyethylene Foam flow regulator. *Hose kit is used for piping isolation, and includes ttings for P/T ports. **See product specifications for flow rates. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 25: Open Loop Single Stage Solenoid Connections

    Section 5: Unit Piping Installation Open Loop Single Stage Solenoid Connections Open Loop Two-Stage Solenoid Connections XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 26: Section 6: Desuperheater Installation

    1. Disconnect electricity to water heater. 2. Turn off water supply to water heater. 3. Drain water heater. Open pressure relief valve. 4. Remove drain valve and fitting from water heater. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 27 Section 6: Desuperheater Installation Figure 10: Water Heater Connection Kit Assembly for Bottom of Water Heater NOTE: Desuperheater circuits are NOT to be connected to gas water heaters! XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 28: Typical Desuperheater Installation With Single Water Heater

    (or Storage Tank) (or Storage Tank) 3/4” Copper Adapter Fitting Shutoff Drain HWG Out Drain Valves Valve Valve HWG In Desuperheater circuits are NOT to be connected to gas water heaters! XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 29: Section 7: Auxiliary Heater Installation

    Introduction hazard-related. The AHTR electric heater is designed specifically for the Enertech XT/CT and YT Series Geothermal Heat Pump Unit. “CAUTION” Indicates a potentially hazardous situation or an Engineering and quality control is built into every electric unsafe practice which, if not avoided, COULD result in minor or heater assembly.
  • Page 30: Heater Compatibility

    - THERE MAY BE MORE THAN ONE DISCONNECT SWITCH. LOCK OUT AND TAG SWITCH WITH Note: Notify Enertech Manufacturing, LLC shipping department SUITABLE WARNING LABEL. of all damages within 15 days. It is the responsibility of the purchaser to file all necessary claims with the freight company.
  • Page 31: Heater Installation

    NOTE: Supply voltage, amperage, fuse and disconnect switch sizes MUST conform with all technical specifications in this manual and on the unit rating plate. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 32: Heater Electrical Data

    Size (AWG) NEC 240.4(B) Wires 3.75 AHTR151CC* Single 11.25 62.5 54.1 78.1 67.6 7.50 7.50 AHTR201CC* Single 83.3 72.1 104.2 90.1 7.50 *Single   P oint   C onnec.on XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 33: Section 8: Electrical Connections

    ECM LOW VOLTAGE WIRING HARNESS, CONTROL BOX, XT & CT BEFORE OTHER ELECTR SERIES (NOT ILLUSTRATED) XT Rev. D Models 41P011−01NN WIRING HARNESS−ELECTRIC HEAT, XT & CT SERIES (NOT Enertech Global, LLC ILLUSTRATED) Installation and Operations Manual 04T006 TIE, WHITE 6 IN (NOT ILLUSTRATED) 06W002 WASHER, #8 EXT.
  • Page 34: Section 9: Controls

    Section 9: Controls Microprocessor Features and Operation Humidifier/Dehumidification Connections Enertech Global geothermal heat pump controls provide Connections for a humidistat are provided, which automatically a unique modular approach for controlling heat pump engages the fan when the humidistat contact closes. In operation.
  • Page 35: Lockout Board Led Identification

    For example, if a high pressure lockout has occurred, the top green light will be on. The orange, red, and yellow lights will be off. 4. Status lights will be off when in test mode. 5. Flashes alternately with the fault LED. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 36: Sequence Of Operation

    YT and YU(remove the jumper wire). The fan is started immediately at 2nd stage CFM level (based Refer to wiring diagram. Enertech recommends the use of a on DIP switch settings), and the electric backup heat is slow acting valve to reduce the chance of water hammer.
  • Page 37 When the ECM control module receives a “G” call without a call for heating or cooling, the fan operates at a lower CFM level (based on DIP switch settings). XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 38: Section 10: Wiring Diagrams

    Section 10: Wiring Diagrams Two Stage, ECM, Single Phase, 208/230V, 60HZ XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 39: Two Stage, Ecm, Three Phase, 208/230V, 60Hz

    Section 10: Wiring Diagrams Two Stage, ECM, Three Phase, 208/230V, 60HZ XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 40: Two Stage, Ecm, Single Phase, 460V, 60Hz

    Section 10: Wiring Diagrams Two Stage, ECM, Single Phase, 460V, 60HZ XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 41: Section 11: Equipment Start-Up Procedures

    Section 11: Equipment Start-Up Procedures Equipment Start-Up Process Form Equipment Start-Up Process Check the following before power is applied to the equipment Caution: Do not start-up the unit until the new structure is ready to be occupied Electrical: Plumbing: Geothermal unit high voltage Pipe and pump sizes are correct wiring is installed correctly Air is purged from all lines...
  • Page 42: Equipment Start-Up Form

    Section 11: Equipment Start-Up Procedures Equipment Start-Up Form EQUIPMENT START-UP FORM Customer Name:_________________________________________________________________ Customer Address:_____________________________________________________________________________________ Model #:__________________________________________ Serial #:____________________________________________ Dealer Name:__________________________________________________________________________________________ Distributor Name:_____________________________________________ Start-up Date:____________________________ Loop Type: Open Closed (Circle One) Flow Rate Cooling Heating Unit Electrical Data Cooling Heating Source Water Pressure In Line Voltage Source Water Pressure Out...
  • Page 43: Section 12: Troubleshooting

    68.9 83.2 92.3 90.5 87.3 83.2 2100 CFM 13.5 41.3 55.4 71.8 86.7 92.1 90.1 86.7 82.2 Htg / 2150 18.0 42.2 56.6 73.4 88.5 92.3 90.1 86.6 82.0 XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 44: Performance Check

    A 10% variance from Spec Manual is allowed. Always use the same pressure gauge & temperature measuring device. Water flow must be in range of Specification Manual. If system has too much water flow, performance problems should be expected. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 45: Qr Codes For Installation Or Troubleshooting Tip Videos

    Repairing a Microchannel Air Coil Variable Speed Flow Centers Testing a Coaxial Heat Exchanger Return Conversion for and XT or CT Heat Of Extraction and Rejection Troubleshooting a TXV XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 46: Compressor Troubleshooting Tips

    If the compressor fails to start a�er Recheck Resistance 3 a�empts, replace the compressor. Single Phase 208-230 Replace Compressor C = Line Winding R = Run Winding S = Start Winding XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 47: Troubleshooting Tips

    Thermostat is getting a draft of cold or warm air. Make sure that the wall or hole used to Thermostat run thermostat wire from the ceiling or basement is sealed, so no draft can come to the thermostat. Faulty Thermostat (Replace). XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 48 CFM. Water sucking out of the Install an EZ-Trap or P-Trap on the drain outlet so blower cannot suck air back through the drain pan drain outlet. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 49: Refrigeration Troubleshooting Form

    Optional desuperheater Supply Air Return Air installed in discharge line Source (loop) IN (always disconnect during troubleshooting) Heating Cooling Mode Mode Source Coax Discharge Discharge °F Source (loop) OUT XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 50: Unit Electrical Data Table

    4. See Wiring Diagrams for proper 460V power. *The external loop pump FLA is based on a maximum of three UP26-116F-230V pumps (1/2hp) for 048-072 and two pumps for 024-036. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 51: Proper Power Supply Evaluation

    ONE HOT LEG OF THE CIRCUIT. SOURCE WIRING MUST BE WYE (STAR) CONFIGURATION. 3-PHASE DELTA CONNECTIONS WILL NOT PROVIDE THE CORRECT WIRING AND WILL CAUSE THE UNIT NOT TO OPERATE. XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 52 This Page Intentionally Left Blank XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 53: Section 13: Warranty Forms And Revision Table

    How would you rate your overall satisfaction with your installing geothermal contractor? 1 (Very Dissatisfied) 10 (Very Satisfied) MAIL THIS FORM TO: EMAIL THIS FORM TO: FAX THIS FORM TO: ENERTECH GLOBAL LLC WARRANTY@ENERTECHGEO.COM ENERTECH GLOBAL LLC 2506 SOUTH ELM STREET 618.664.4597 GREENVILLE, IL 62246 REGISTER ONLINE AT: warranty-registration.enertechgeo.com...
  • Page 54 This Page Intentionally Left Blank XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 55: Revision Table

    Layout changes made Various 18OCT2019 Electrical Data Table updated 13NOV2017 Updated Electrical Data Table 09SEP2015 Added Removal and disposal paragraph 29May2014 Updated DGT from 200F to 220F 31Mar2014 Document Created XT Rev. D Models Enertech Global, LLC Installation and Operations Manual...
  • Page 56 Customer Service department at info@enertechgeo.com. Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties, but are merely Enertech Global’s opinion or commendation of its products.

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