Enertech VS Series Installation & Operation Manual

Enertech VS Series Installation & Operation Manual

Packaged water-to-air heat pumps
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Installation & Operations Manual
VS/VT MODELS PACKAGED WATER-TO-AIR HEAT PUMPS
20D218-02NN
20D218-02NN
REVISION: A

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Summary of Contents for Enertech VS Series

  • Page 1 Installation & Operations Manual VS/VT MODELS PACKAGED WATER-TO-AIR HEAT PUMPS 20D218-02NN 20D218-02NN REVISION: A...
  • Page 2: Table Of Contents

    Desuperheater Installation with Preheat Tank ......................35 Section 7: Auxiliary Heater Auxiliary Heater Nomenclature Decoder and Overview ..................36 Section 8: Electrical Connections Single Phase Connections, Typical Thermostat Connections and Three Phase Connections ......37 Enertech Global IOM, VS/VT Models, Rev A...
  • Page 3 Section 11: Equipment Start-Up Procedures Equipment Start-Up Process ............................62 Equipment Start-Up Form ............................63 VS Series, Heat of Extraction/Heat of Rejection Tables ................... 64 HE/HR Table, Standard PSC Blower ........................... 64 HE/HR Table, Optional ECM Blower .......................... 64 VT Series, Heat of Extraction/Heat of Rejection Tables .................... 65 HE/HR Table, Standard ECM Blower ..........................
  • Page 4: Section 1: Model Nomenclature And Ahri Data

    (018 - 072, 208/230V Units Only) 5 = Desuperheater w/o Factory Installed Pump (265V, 460V, 575V Units Only) VT Model Nomenclature    ENERTECH GLOBAL, LLC 2506 S. ELM STREET  GREENVILLE, IL 62246 (618) 664-9010   ...
  • Page 5: Ahri Performance Data, Vs, W/Psc Blower

    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: 68°F heating / 86°F cooling IOM, VS/VT Models, Rev A Enertech Global...
  • Page 6: Ahri Performance Data, Vt, W/Ecm Blower

    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: 68°F heating / 86°F cooling 26.5 for 265-VOLT Unit Enertech Global IOM, VS/VT Models, Rev A...
  • Page 7: Section 2: Installation Introduction

    Un-packaging removed for servicing. Enertech units are mounted to wooden pallets for Pre-Installation Steps easy handling during shipment and installation. Compare the electrical data on the unit Units are protected during shipment with durable nameplate with packing slip and ordering cardboard corner posts, top and air coil panels.
  • Page 8: Section 2: Installation Introduction

    Blower Motor (PSC) PSC blower motor. during building construction phase. Blower Motor (ECM) ECM, Constant CFM blower motor. Compressor (Copeland Scroll) Pumps refrigerant through the heat exchangers and pressurizes the refrigerant, which increases the temperature of the refrigerant. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 9: Section 3: Installation Considerations Consumer Instructions

    Enertech Global has set forth this policy to ensure Service Access and Installation Space. Is there installations of Enertech Global geothermal systems enough space for service access? A general are done safely and properly.
  • Page 10: Duct Work And Typical Supply And Return Ductwork Connections

    NOTE: Maintain duct size of supply flange for at least 12” before transitioning to size of supply plenum HOT WATER IN designed for duct system. HOT WATER OUT SOURCE WATER OUT CONDENSATE DRAIN SOURCE WATER IN Equipment Pad 2” Polyethylene Foam Enertech Global IOM, VS/VT Models, Rev A...
  • Page 11: Section 4: Unit Data Information

    HOT WATER IN HOT WATER OUT SOURCE WATER OUT CONDENSATE DRAIN EXTERNAL ELECTRIC HEAT HIGH VOLTAGE Enertech Recommends A Minimum of 2 T-STAT to 2 1/2 Feet of Service Area Clearance CONNECTION For Installation And Maintenance. EXTERNAL PUMP SUPPLY ...
  • Page 12 1" - 2" DELUXE RACK 25.00 20.00 1.83 1.30 3.00 RETURN DUCT FLANGES 29.00 23.00 1.83 3.25 1.00 042-072 1" COMMERCIAL RACK 29.00 23.00 1.83 3.25 1.75 1" - 2" DELUXE RACK 29.00 23.00 1.83 3.25 3.00 Enertech Global IOM, VS/VT Models, Rev A...
  • Page 13: Unit Physical Data

    28.9 x 23.7 x 1.26 25.4 x 19.8 x 1 28.9 x 23.7 x 1.26 Number of Rows N/A Micro-Channel Coil Shipped Unit Weight (Nominal) lbs. *Always check the unit data plate for charge volume IOM, VS/VT Models, Rev A Enertech Global...
  • Page 14: Vs - Ecm Electrical Data - 015-042

    4. Min/Max Voltage: 208/230/60 = 187-252, 460/60 = 432-504, 575/60 = 540-630, 265/60 = 249-291 5. See Wiring Diagrams for proper 460V and 575V 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 015-036. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 15: Vs - Ecm Electrical Data - 048-072

    4. Min/Max Voltage: 208/230/60 = 187-252, 460/60 = 432-504, 575/60 = 540-630, 265/60 = 249-291 5. See Wiring Diagrams for proper 460V and 575V 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 015-036. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 16: Vs - Psc Electrical Data - 006-030

    4. Min/Max Voltage: 208/230/60 = 187-252, 460/60 = 432-504, 575/60 = 540-630, 265/60 = 249-291 5. See Wiring Diagrams for proper 460V and 575V 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 006-036. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 17: Vs - Psc Electrical Data - 036-072

    4. Min/Max Voltage: 208/230/60 = 187-252, 460/60 = 432-504, 575/60 = 540-630, 265/60 = 249-291 5. See Wiring Diagrams for proper 460V and 575V 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 006-036. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 18: Vt - Ecm Electrical Data - 024-072

    4. Min/Max Voltage: 208/230/60 = 187-252, 460/60 = 432-504, 575/60 = 540-630, 265/60 = 249-291 5. See Wiring Diagrams for proper 460V and 575V 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. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 19: Psc Fan Performance, Single Stage Compressor Units

    2000 1350 1650 1990 1500 1700 1430 1750 1200 1475 1770 Notes: 1. Program B (Bold Type) is factory settings and rated CFM.  CFM is controlled within 5% up to the Max ESP. 2. Max ESP includes allowance for wet coil and NO FILTER 3. Power must be off to the unit for at least 3 seconds before the ECM motor will recognize a program change. 4. Max ESP for VS015 and VS018 models with external electric heat is 0.9 in. w.c.; for VS/VT024 through VS/VT036 models it is 0.6 in. w.c.; and for VS042 through VS/VT072 it is 0.9 in.  w.c. Exceeding the Max ESP may result in nuisance trips of the electric heat. Thermal limits are rated at 100,000 cycles. *VS/*VT Series Dehumidification Mode Options DIP Switch Mode Operation Normal Dehumidification mode disabled (Normal Htg/Clg CFM)‐‐ Factory setting. On Demand Dehumidification mode (humidistat input at terminal ODD)‐‐ Humidistat  required. Constant Dehumidification mode (always uses dehum CFM for cooling and normal CFM for  Constant Dehum heating)‐‐No humidistat required.  Not Used Not an applicable selection. Notes: 1. To enter dehumidification mode, ODD input should be 0 VAC; for normal cooling CFM, ODD input should be 24 VAC. 2. Heating CFM is not affected by dehumidification mode.  When in dehumidification mode, cooling CFM is 85% of normal CFM. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 20: Water Flow Calculations And Selection

    2. Desuperheater capacity is based upon 0.2 GPM Flow per nominal ton at 70°F entering hot water temperature. 3. Interpolation between above categories is permissible; extrapolation is not. 4. See Flow Rate Selection above for proper application. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 21: Section 5: Unit Piping Installation Water Quality

    4. Saltwater applications (approx. 25,000 ppm) require secondary heat exchangers due to copper piping between the heat exchanger. 5. Filter for maximum of 600 micron size. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 22: Interior Piping

    Cleaning Holes (Capped) properly supported. Vent Unit Condensate Drain Outlet 1.0” 1/4" per foot Front of Unit Enertech Global IOM, VS/VT Models, Rev A...
  • Page 23: Pressurized Flow Center And Pump Mounting

    “weep holes” designed to drain any condensation that may have formed. “Weep holes” are located on three sides of the pump. Figure 3: Acceptable terminal box locations for UPS26-99, UP26-99, and UP26-116 pumps. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 24: Typical Unit Piping Connections

    Notes: P/T ports should be angled away from the unit for ease of gauge reading. Flow Drawings represent typical installation. The Center manufactures installation guides should be used Equipment Pad 2” Polyethylene Foam for final installation Enertech Global IOM, VS/VT Models, Rev A...
  • Page 25: Open Loop Piping And Connections

    Strainer Ball Valve Drains (optional) (2 required) (2 required) Equipment Pad 2” Polyethylene Foam *Hose kit is used for piping isolation, and includes ttings for P/T ports. **See product specifications for flow rates. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 26: Flushing & Charging A Pressurized Flow Center

    Flush Cart Design • Turn both 3-way valves on flow center to flush The Enertech Manufacturing flush cart has been ports and loop position. designed to effectively and efficiently flush the • Turn on water supply (make sure water is of earth loop and to facilitate injecting and mixing of proper quality).
  • Page 27 The fluid will not mix inside the loop. • Check the antifreeze level every so often to insure that the proper amount was added to the system (see antifreeze charging section). IOM, VS/VT Models, Rev A Enertech Global...
  • Page 28 (pressure is also applied to the hose kit the pipe. This fluctuation is normal and needs to in this arrangement). be considered when charging and pressuring the Enertech Manufacturing Flush Cart system initially. Typical operating pressures of an earth loop are 15 to 50 psi. •...
  • Page 29: Antifreeze Overview

    Corrosiveness: The brine must be compatible with the system materials. Stability: Will the brine require periodic change out or maintenance? IOM, VS/VT Models, Rev A Enertech Global...
  • Page 30: Antifreeze Specific Gravity

    Use only in a well ventilated area. Do not smoke when handling flammable solutions. Failure to observe safety precautions may result in fire, injury, or death. Never work with 100% alcohol solutions. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 31: Antifreeze Charging

    Mix according to manufacturer’s directions on container label Antifreeze solutions are shown in pure form - not premixed HTF is a premixed Methanol solution *Concentrations below 25-30% (consult manufacturer) typically require additional inhibitors. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 32: Apsma Pump Sharing Module

    P/T Ports Source In Source In Source In Equipment Pad Equipment Pad 2” Polyethylene Foam 2” Polyethylene Foam Drawings represent typical unit installation, connection location, type and appearance may differ per other models Enertech Global IOM, VS/VT Models, Rev A...
  • Page 33: Section 6: Desuperheater Installation

    12. Run interconnecting ½” copper pipe from the HOT WATER OUT on the heat pump, to the Note: ALL Enertech Global products meet the copper adaptor located on the tee at the requirements of NSF-372 (Lead Free).
  • Page 34 Note: Drawing shown vertically for detail. Fitting installs horizontally into hot water tank. Connection to Hot Water Tank Copper Tee For Domestic Cold Water In Line Drain Brass Tee Adapter to Unit Water Line Enertech Global IOM, VS/VT Models, Rev A...
  • Page 35: Desuperheater Installation With Single Water Heater

    Shutoff Drain Drain Valves Valve Equipment Pad Equipment Pad Valve 2” Polyethylene Foam SOURCE WATER OUT 2” Polyethylene Foam Water Heater No. 2 Water Heater No. 1 (or Storage Tank) (or Storage Tank) IOM, VS/VT Models, Rev A Enertech Global...
  • Page 36: Section 7: Auxiliary Heater

    'AUX HEAT CONTROL WIRING' Overview THE AXCH electric heater kits are designed and Components approved for use with specific sizes of Enertech’s Each AXCH electric heat kit should contain the VS/VT unit models. Table 1 lists all of the possible following items: combinations.
  • Page 37: Section 8: Electrical Connections

    National and local electrical codes must be followed during PROPRIE T ARY AND CONFIDE NT installation of this unit. THE INFORMATION CONTAINED I PROPERTY OF ENERTECH. ANY RE • Use caution to avoid damaging the wiring and components A WHOLE, WITHOUT WRITTEN CO during installation.
  • Page 38: Section 9: Controls

    Microprocessor Features and Operation An accessory relay terminal, “A”, can be used for solenoid valves without an end switch. This Enertech Global geothermal heat pump controls terminal is energized 10 seconds before the provide a unique modular approach for controlling compressor contactor.
  • Page 39: Loop Pump Circuit Breakers And Safety Controls

    There is no delay of switch monitoring at startup. Hot Gas Line Temperature limit (T2>220°F): When T2>220°F for 30 continuous seconds, the compressor operation will be interrupted. The control will go into fault retry mode. UART 1 2 3 4 STATUS IOM, VS/VT Models, Rev A Enertech Global...
  • Page 40: Temperature Sensor Operating Range

    If power is interrupted to the board, the fault memory will be cleared. Diagnostics The lockout board includes five LEDs (Green-HP, Orange-LP, Red-FS, Yellow-CO, Green-Status) for fast and simple control board diagnosis. Below is a table showing LED function. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 41: Led Identification

    6. Check for T1 & T4 being swapped (only shown in TEST mode). 7. Hot Gas Line temperature is too high (>220F). 8. Units without HWG do not use sensors T2 and T3. The control will disable faults 15 and 16. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 42: Hot Water Generator (Hwg) Pump Control

    Sequence of Operation Anti-Freeze (A-FRZ): When the jumper is installed, the VS Series has a One-Stage compressor with PSC fan board operates in open loop mode. The setpoint motor or optional ECM fan motor.
  • Page 43 (CFM) in all heating stages, but all cooling operation will be 85% of the current stage airflow (CFM) level (based on DIP switch settings). The dehumidification mode lowers the airflow (CFM) through the evaporator coil, to improve latent (dehumidification) capacity. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 44: Section 10: Wiring Diagrams

    Section 10: Wiring Diagrams Single Stage, PSC Fan, Single Phase, 208/230V, 60HZ, DSH, Residential/Commercial Enertech Global IOM, VS/VT Models, Rev A...
  • Page 45: Two Stage Or Single Stage, Ecm Fan, Single Phase, 208/230V, 60Hz, Dsh

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, single Phase, 208/230V, 60Hz, DSH IOM, VS/VT Models, Rev A Enertech Global...
  • Page 46: Single Stage, Psc Fan, Single Phase, 208/230V, 60Hz, Residential/Commercial

    Section 10: Wiring Diagrams Single Stage, PSC Fan, Single Phase, 208/230V, 60Hz, Residential/Commercial Enertech Global IOM, VS/VT Models, Rev A...
  • Page 47: Single Stage, Psc Fan, Single Phase, 208/230V Or 115V, 60Hz, Commercial

    Section 10: Wiring Diagrams Single Stage, PSC Fan, Single Phase, 208/230V or 115V, 60Hz, Commercial IOM, VS/VT Models, Rev A Enertech Global...
  • Page 48: Two Stage Or Single Stage, Ecm Fan, Single Phase, 208/230V, 60Hz

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Single Phase, 208/230V, 60Hz Enertech Global IOM, VS/VT Models, Rev A...
  • Page 49: Two Stage Or Single Stage, Ecm Fan, Single Phase, 208/230V, 60Hz, Commercial

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Single Phase, 208/230V, 60Hz, Commercial IOM, VS/VT Models, Rev A Enertech Global...
  • Page 50: Single Stage, Psc Fan, Three Phase, 208/230V, 60Hz, Commercial

    KURT M. MOD. PER ECN 17-317-N01 Section 10: Wiring Diagrams WATER-TO-AIR UNIT, SINGLE STAGE, PSC FAN, THREE PHASE, 208/230V, Single Stage, PSC Fan, Three Phase, 208/230V, 60Hz, Commercial 60Hz, COMMERCIAL VS SERIES THERMOSTAT 2 HEAT/1 COOL THERMOSTAT CONNECTIONS WHITE YELLOW...
  • Page 51: Single Stage, Psc Fan, Three Phase, 208/230V, 60Hz, Dsh, Commercial

    KURT M. MOD. PER ECN 17-317-N01 Section 10: Wiring Diagrams WATER-TO-AIR UNIT, SINGLE STAGE, PSC FAN, THREE PHASE, 208/230V, 60Hz, DSH, COMMERCIAL VS SERIES Single Stage, PSC Fan, Three Phase, 208/230V, 60Hz, DSH, Commercial THERMOSTAT 2 HEAT/1 COOL THERMOSTAT CONNECTIONS...
  • Page 52: Single Stage, Psc Fan, Three Phase, 460V, 60Hz, Commercial

    Section 10: Wiring Diagrams Single Stage, PSC Fan, Three Phase, 460V, 60Hz, Commercial Enertech Global IOM, VS/VT Models, Rev A...
  • Page 53: Single Stage, Three Phase , 460V Or 575V, 60Hz, Dsh, Commercial

    Section 10: Wiring Diagrams Single Stage, Three Phase , 460V or 575V, 60Hz, DSH, Commercial IOM, VS/VT Models, Rev A Enertech Global...
  • Page 54: Two Stage Or Single Stage, Ecm Fan, Three Phase, 208/230V, 60Hz, Commercial

    KURT M. MOD. PER ECN 17-317-N01 Two Stage or Single Stage, ECM Fan, Three Phase, 208/230V, 60Hz, Commercial WATER-TO-AIR UNIT, TWO STAGE OR SINGLE STAGE, ECM FAN, THREE PHASE, 208/230V, 60Hz, COMMERCIAL VT/VS SERIES THERMOSTAT 2 HEAT/1 COOL THERMOSTAT CONNECTIONS...
  • Page 55: Two Stage Or Single Stage, Ecm Fan, Three Phase, 208/230V, 60Hz, Dsh, Commercial

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Three Phase, 208/230V, 60Hz, DSH, Commercial WATER-TO-AIR UNIT, TWO STAGE OR SINGLE STAGE, ECM FAN, THREE PHASE, 208/230V, 60Hz, DSH, COMMERCIAL VT/VS SERIES THERMOSTAT 2 HEAT/1 COOL THERMOSTAT CONNECTIONS...
  • Page 56: Two Stage Or Single Stage, Ecm Fan, Three Phase, 460V, 60Hz, Commercial

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Three Phase, 460V, 60Hz, Commercial Enertech Global IOM, VS/VT Models, Rev A...
  • Page 57: Single Stage, Psc Fan, Single Phase, 265V, 60Hz, Commercial

    Section 10: Wiring Diagrams Single Stage, PSC Fan, Single Phase, 265V, 60Hz, Commercial IOM, VS/VT Models, Rev A Enertech Global...
  • Page 58: Single Stage, Psc Fan, Single Phase, 265V, 60Hz, Dsh, Commercial

    Section 10: Wiring Diagrams Single Stage, PSC Fan, Single Phase, 265V, 60Hz, DSH, Commercial Enertech Global IOM, VS/VT Models, Rev A...
  • Page 59: Two Stage Or Single Stage, Ecm Fan, Single Phase, 265V, 60Hz, Commercial

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Single Phase, 265V, 60Hz, Commercial IOM, VS/VT Models, Rev A Enertech Global...
  • Page 60: Two Stage Or Single Stage, Ecm Fan, Single Phase, 265V, 60Hz, Dsh, Commercial

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Single Phase, 265V, 60Hz, DSH, Commercial Enertech Global IOM, VS/VT Models, Rev A...
  • Page 61: Two Stage Or Single Stage, Ecm Fan, Three Phase, 460V, 60Hz, Dsh, Commercial

    Section 10: Wiring Diagrams Two Stage or Single Stage, ECM Fan, Three Phase, 460V, 60Hz, DSH, Commercial IOM, VS/VT Models, Rev A Enertech Global...
  • Page 62: Section 11: Equipment Start-Up Procedures

    9. Check auxiliary heat operation by adjusting the thermostat set point 5°F above the room temperature in “Heat” mode or set thermostat to “Emergency." Record voltage, amperage, and air temperature difference. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 63: Equipment Start-Up Form

    Line Voltage Total Amperage (Full kW - All Stages) Wire Size Breaker Size CFM = (Watts X 3.413) ÷ (Air Temp. Difference X 1.08) Watts = Volts X Auxiliary Heater Amps Installer/Technician:____________________________________________ Date:________________________ IOM, VS/VT Models, Rev A Enertech Global...
  • Page 64: Vs Series, Heat Of Extraction/Heat Of Rejection Tables

    Section 11: Equipment Start-Up Procedures VS Series, Heat of Extraction/Heat of Rejection Tables HE/HR Table, Standard PSC Blower Heat of Extraction (MBtuh) Heat of Rejection (MBtuh) Model (Heating/Cooling) VS006 300/300 12.0 14.9 14.1 13.4 12.4 VS009 350/350 10.4 12.8 15.1 14.2...
  • Page 65: Vt Series, Heat Of Extraction/Heat Of Rejection Tables

    7. Interpolation of unit performance data is permissible; extrapolation is not. 8. Performance data is a result of lab testing and is not related to warranty. 9. Due to variations in installation, actual unit performance may vary from the tabulated data. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 66: Vs Series, Pressure Drop Tables

    Section 11: Equipment Start-Up Procedures VS Series, Pressure Drop Tables Source Brine Pressure Drop Model FT HD FT HD FT HD FT HD VS006 VS009 VS012 12.7 10.8 VS015 VS018 VS024 10.8 VS030 VS036 11.0 12.0 11.3 10.8 VS042 10.5 11.3...
  • Page 67: Vt Series, Pressure Drop Tables

    4. Interpolation of unit pressure drop data is permissible; extrapolation is not. 5. Pressure drop data is a result of lab testing and is not related to warranty. 6. Due to variations in installation, actual unit performance may vary from the tabulated data. IOM, VS/VT Models, Rev A Enertech Global...
  • Page 68: Section 12: Troubleshooting Performance Check

    Repairing a Microchannel Air Coil ECM Temporary Replacement Testing a Coaxial Heat Exchanger ECM Motor Troubleshooting Troubleshooting a TXV Troubleshooting a TXV Installing a YT Vertical Unit Enertech Global IOM, VS/VT Models, Rev A...
  • Page 69: Model Vs Operating Parameter Tables

    131-165 7-20 5-20 8-12 13-23 Heating data based on 70°F EAT. Cooling data based on 80/67°F EAT. CFM is 325-475 CFM/Ton for heating and cooling except for VS006 (260-340 CFM for 1/2 Ton). IOM, VS/VT Models, Rev A Enertech Global...
  • Page 70: Model Vt Operating Parameter Tables

    17-26 498-535 140-160 18-29 4-18 19-23 15-24 428-458 138-159 6-17 5-20 9-12 15-24 Heating data based on 70°F EAT. Cooling data based on 80/67°F EAT. CFM is 330-400 CFM/Ton for heating and cooling. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 71: Compressor Troubleshooting

    't p u m p o f th e re v e rs in g re p la c e c o m p re s s o r. v a lv e . IOM, VS/VT Models, Rev A Enertech Global...
  • Page 72: Refrigeration Troubleshooting

    Inadequate Compression Cool High High/Normal Low/Normal Superheat/Subcooling Conditions Superheat Subcooling Condition Normal Normal Normal operation Normal High Overcharged High Undercharged High High Restriction or TXV is stuck almost closed TXV is stuck open Enertech Global IOM, VS/VT Models, Rev A...
  • Page 73: Troubleshooting Worksheet

    (saturation) °F °F °F 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 IOM, VS/VT Models, Rev A Enertech Global...
  • Page 74: Troubleshooting Tips

    Thermostat is getting a draft of cold or warm air. Make sure that the wall or hole used to run thermostat Thermostat wire from the ceiling or basement is sealed, so no draft can come to the thermostat. Faulty Thermostat (Replace). Enertech Global IOM, VS/VT Models, Rev A...
  • Page 75 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 outlet. drain pan IOM, VS/VT Models, Rev A Enertech Global...
  • Page 76: Unit Electrical Data

    THE MOTORS ARE WIRED BETWEEN THE NEUTRAL AND 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. Enertech Global IOM, VS/VT Models, Rev A...
  • Page 77: Section 13: Warranty

    3) Outsourced warranty replacement parts will be reimbursed in the form of credit for the part only. Credit will be no more than the standard equivalent part cost through Enertech. 4) Factory pre-approval is required for anything outside the scope of this document.
  • Page 78: Warranty Registration Form

    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 79 This Page Intentionally Left Blank IOM, VS/VT Models, Rev A Enertech Global...
  • Page 80 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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