York LX Series Installation Manual
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York LX Series Installation Manual

Geothermal heat pumps dual capacity
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Heating and Air Conditioning
INSTALLATION MANUAL
LX SERIES
GEOTHERMAL HEAT PUMPS
DUAL CAPACITY
MODELS:
YLF024 - 072
(2 THRU 6 NOMINAL TONS)
(2 THRU 6 NOMINAL TONS)
Due to continuous product improvement, specifications are
subject to change without notice.
Visit us on the web at www.york-geothermal.com
Additional rating information can found at
www.ahridirectory.org
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

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  • Page 1 (2 THRU 6 NOMINAL TONS) Due to continuous product improvement, specifications are subject to change without notice. Visit us on the web at www.york-geothermal.com Additional rating information can found at www.ahridirectory.org FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE...

  • Page 3: Table Of Contents

    LX SERIES INSTALLATION MANUAL Table of Contents Model Nomenclature ............. . . 4 General Installation Information .

  • Page 4: Model Nomenclature

    LX SERIES INSTALLATION MANUAL Model Nomenclature Vintage Model Type * - Factory Use Only YLF – LX Series Water-to-Air Control Option Compressor Type A – Aurora Base Controls T – Dual-Capacity Air Coil Option Unit Capacity (MBTUH) 0 – Uncoated Coil 024, 036, 048, 060, 072 1 –...

  • Page 5: General Installation Information

    LX SERIES INSTALLATION MANUAL General Installation Information Safety Considerations Installing Vertical Units Prior to setting the unit in place, remove and discard the WARNING: Before performing service or compressor hold down shipping bolt located at the front of the maintenance operations on a system, turn off main compressor mounting bracket.
  • Page 6 LX SERIES INSTALLATION MANUAL General Installation Information cont. Installing Horizontal Units Figure 2: Horizontal Unit Mounting Remove and discard the compressor hold down shipping bolt located at the front of the compressor mounting bracket prior to setting the unit in place. Horizontal units are available with side or...
  • Page 7 LX SERIES INSTALLATION MANUAL General Installation Information cont. Figure 3: Hanger Location and Assembly Weight Distribution Hanger Bracket Locations (See Figure 3) Horizontal Weight Distribution Hanger Kit Unit Hanger Dimensions Vertical Horizontal Model Model Front Back Part Number Weight Weight 53.7...
  • Page 8 LX SERIES INSTALLATION MANUAL General Installation Information cont. Duct System When connecting to an open loop (ground water) system, thread any 1-inch MPT fitting (SCH80 PVC or copper) into the swivel An air outlet collar is provided on vertical top air discharge units connector and tighten in the same manner as noted above.
  • Page 9 LX SERIES INSTALLATION MANUAL General Installation Information cont. Water Quality Contaminated Water It is the responsibility of the system designer and installing In applications where the water quality cannot be held to contractor to ensure that acceptable water quality is present and prescribed limits, the use of a secondary or intermediate heat that all applicable codes have been met in these installations.
  • Page 10 LX SERIES INSTALLATION MANUAL General Installation Information cont. Water Quality Guidelines Material Copper 90/10 Cupro-Nickel 316 Stainless Steel Acidity/Alkalinity 7- 9 7 - 9 7 - 9 Calcium and Magnesium (Total Hardness) (Total Hardness) (Total Hardness) Scaling Carbonate less than 350 ppm...

  • Page 11: Closed Loop Ground Source Systems

    LX SERIES INSTALLATION MANUAL Closed Loop Ground Source Systems Multiple Units on One Flow Center Once piping is completed between the unit, pumps and the ground loop, final purging and charging of the loop When two heat pumps are connected to one loop pumping system, is required.

  • Page 12: Open Loop Ground Water Systems

    LX SERIES INSTALLATION MANUAL Open Loop Ground Water Systems Typical open loop piping is shown below. Always maintain Discharge water from the unit is not contaminated in any manner water pressure in the heat exchanger by placing water control and can be disposed of in various ways, depending on local codes, valves at the outlet of the unit to prevent mineral precipitation.

  • Page 13: Hot Water Generator Connections

    LX SERIES INSTALLATION MANUAL Hot Water Generator Connections To maximize the benefits of the hot water generator a minimum Figure 11: Typical Hot Water Generator Installation 50-gallon water heater is recommended For higher demand Cold 3/4” x 3/4” x 1/2” tee...
  • Page 14 LX SERIES INSTALLATION MANUAL Hot Water Generator Connections cont. Plumbing Installation Hot Water Generator Startup 1. Inspect the dip tube in the water heater cold inlet for a check 1. Turn the hot water generator switch to the “ON” position. The valve.

  • Page 15: Electrical Connections

    LX SERIES INSTALLATION MANUAL Electrical Connections General Figure 13B: Line Voltage 208-230/60/1 control box Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable.

  • Page 16: Electronic Thermostat Installation

    LX SERIES INSTALLATION MANUAL Electronic Thermostat Installation Figure 15a: Thermostat Wiring (Y1 Style Signals) Position the thermostat subbase against the wall so that it is level and the thermostat wires protrude through the middle of the subbase. Mark the position of the subbase mounting holes and 24VAC (Hot) drill holes with a 3/16-inch bit.

  • Page 17: Auxiliary Heat Ratings

    LX SERIES INSTALLATION MANUAL Auxiliary Heat Ratings BTU/HR Model Stages Min CFM 208V 230V 208V 230V 048 - 072 EAM(H)5* ● ● 12,300 16,300 EAM(H)8* ● ● 19,400 25,900 EAM(H)10* ● 24,600 32,700 EAL(H)10* ● 24,600 32,700 1100 EAL(H)15* ●...

  • Page 18: Blower Performance Data

    LX SERIES INSTALLATION MANUAL Blower Performance Data 5-Speed ECM Constant Torque Motors As static pressure increases, airflow decreases resulting in less torque on the rotor. The motor responds only to changes in torque The 5-Speed ECM is a ‘Constant Torque’ ECM motor and delivers and adjusts its speed accordingly.

  • Page 19: Dimensional Data

    LX SERIES INSTALLATION MANUAL Vertical Dimensional Data 3 SERIES VERTICAL SUBMITTAL DATA 2 ft [61 cm] Primary Service Access 2 ft [61 cm] Alternate RIGHT RETURN Service Access. Right Return Opposite Side LEFT RETURN 1.90 4.8 1.90 4.8 FRONT Electrical...
  • Page 20 LX SERIES INSTALLATION MANUAL Horizontal Dimensional Data TOP VIEW 2.00 5.1 Mount (2) hanger brackets as shown to allow access to filter 2 ft [61 cm] 2 ft [61 cm] Primary Service Access Alternate Service Access Right return opposite side...

  • Page 21: Physical Data

    LX SERIES INSTALLATION MANUAL Physical Data Dual Capacity Model Compressor (1 each) Copeland Ultra Tech, Dual Capacity Scroll Factory Charge R410a, oz [kg] Vertical 39 [1.05] 52 [1.47] 68 [1.93] 76 [2.15] 88 [2.49] Factory Charge R410a, oz [kg] Horizontal 38 [1.08]...

  • Page 22: The Aurora™ Control System

    LX SERIES INSTALLATION MANUAL The Aurora™ Control System cont.. Aurora Control Features Description Aurora ‘Base’ Microprocessor control of compressor for timings with FP1, HP, LP, • Microprocessor Compressor Control Condensate, assignable Acc relay Compressor Contactor powers Hot Water Generator Pump with inline •...
  • Page 23 LX SERIES INSTALLATION MANUAL The Aurora Control System cont. Aurora ‘Base’ Control Reset Configuration Mode The control is placed in reset configuration mode by holding the push button switch SW1 for 50 to 60 seconds. This will reset all configuration settings and the EEPROM back to the factory default settings.
  • Page 24 LX SERIES INSTALLATION MANUAL The Aurora ‘Base’ Control System cont. Field Selectable Options via Software Loss of Charge – fault is recognized when the Normally Closed Low Pressure Switch, P4-7/8 is open prior to the compressor (Selectable via the Aurora AID Tool) starting.
  • Page 25 LX SERIES INSTALLATION MANUAL The Aurora ‘Base’ Control System cont. Emergency Heat (W) - The blower will be started on “W” speed, Aurora ‘Base’ Control LED Displays 10 seconds later the first stage of electric heat will be turned on.

  • Page 26: Reference Calculations

    LX SERIES INSTALLATION MANUAL The Aurora ‘Base’ Control System cont. Aurora Interface and Diagnostics (AID) Tool AURORA BASE CONTROL™ The Aurora Interface and Diagnostics (AID) Tool is a device that is a member of the Aurora network. The AID Tool is used to troubleshoot equipment which uses the Aurora control via Modbus RTU communication.

  • Page 27: Legend

    LX SERIES INSTALLATION MANUAL Legend Abbreviations and Definitions = airflow, cubic feet/minute COP = Coefficient of Performance EWT = entering water temperature, Fahrenheit = Btu output/Btu input = water flow in gallons/minute = leaving water temperature, °F WPD = water pressure drop, psi and feet of water = leaving air temperature, °F...

  • Page 28: Wiring Schematics

    LX SERIES INSTALLATION MANUAL Wiring Schematics Aurora BASE with 5-Speed ECM Ext Pump 1/2 hp Total Green/Yellow Notes 208-230/60/1 1 - Switch blue a nd red wires for 208V operation. Compr essor Violet(7) 2 - The blk/wh and gray/wh wi re s are removed when Aux He at is installed...
  • Page 29 LX SERIES INSTALLATION MANUAL Wiring Schematics cont. Aurora BASE with 5-Speed ECM cont. Aurora LED Flash Codes Slow Flash 1 second on and 1 second off With optional EA Series 10kW Auxiliary Electric Heat Shown Fast Flash 100 milliseconds on and 100 milliseconds off...
  • Page 30 LX SERIES INSTALLATION MANUAL Wiring Schematics cont. Aurora BASE with 5 Speed ECM and IntelliStart Ext Pump Blue 1/2 hp Total Green/Yellow 208-230/60/1 Compr essor Violet(7) Pump Pump Run Winding IntelliStart Blue Violet(8) Black Pink Active Start Black Circuit Breaker...
  • Page 31 LX SERIES INSTALLATION MANUAL Wiring Schematics cont. Aurora BASE with 5 Speed ECM and IntelliStart Aurora LED Flash Codes With optional EA Series 20kW Auxiliary Electric Heat Shown Slow Flash 1 second on and 1 second off Fast Flash 100 milliseconds on and 100 milliseconds off...

  • Page 32: Unit Startup

    LX SERIES INSTALLATION MANUAL Unit Startup Startup Steps Before Powering Unit, Check the Following: NOTE: Complete the Equipment Start-Up/Commissioning Check NOTE: Remove and discard the compressor hold down shipping Sheet during this procedure. Refer to thermostat operating bolt located at the front of the compressor mounting bracket.
  • Page 33 LX SERIES INSTALLATION MANUAL 024 Operating Parameters Dual Capacity Models First Stage Operation Cooling -- No Hot Water Generation Entering Water Flow Water Temp Suction Discharge Water Temp Rise Air Temp Drop gpm/ton Superheat Subcooling °F Pressure psig Pressure psig °F...

  • Page 34: 036 Operating Parameters

    LX SERIES INSTALLATION MANUAL 036 Operating Parameters Dual Capacity Models First Stage Operation Cooling -- No Hot Water Generation Entering Water Flow Water Temp Suction Pressure Discharge Pressure Water Temp Air Temp Drop gpm/ton Superheat Subcooling °F psig psig Rise °F °F DB...
  • Page 35 LX SERIES INSTALLATION MANUAL 048 Operating Parameters Dual Capacity Models First Stage Operation Cooling -- No Hot Water Generation Entering Water Flow Water Temp Suction Pressure Discharge Water Temp Air Temp Drop gpm/ton Superheat Subcooling °F psig Pressure psig Rise °F °F DB...
  • Page 36 LX SERIES INSTALLATION MANUAL 060 Unit Operating Parameters Dual Capacity Models First Stage Operation Cooling -- No Hot Water Generation Entering Water Water Flow Suction Pressure Discharge Pressure Water Temp Rise Air Temp Drop Temp °F gpm/ton Superheat Subcooling psig psig °F...
  • Page 37 LX SERIES INSTALLATION MANUAL 072 Unit Operating Parameters Dual Capacity Models First Stage Operation Cooling -- No Hot Water Generation Entering Water Water Flow Suction Pressure Discharge Water Temp Rise Air Temp Drop Temp °F gpm/ton Superheat Subcooling psig Pressure psig °F...

  • Page 38: Pressure Drop

    LX SERIES INSTALLATION MANUAL Pressure Drop Pressure Drop (psi) Model 30°F 50°F 70°F 90°F 110°F 024 Full Load 10.5 024 Part Load 036 Full Load 036 Part Load 048 Full Load 10.1 048 Part Load 060 Full Load 13.8 13.0 13.0...

  • Page 39: Compressor And Thermistor Resistance

    LX SERIES INSTALLATION MANUAL Compressor Resistance Thermistor Resistance Thermistor Microprocessor 208-230/60/1 Model Compressor Model No. Resistance (Ohms) Temperature (°F) Start 75757-70117 ZPS20K5E-PFV 1.21 - 1.39 1.52 - 1.75 57392-53234 ZPS30K5E-PFV 0.81 - 0.94 1.41 - 1.63 43865-40771 ZPS40K5E-PFV 0.48 - 0.55 1.72 - 1.99...

  • Page 40: Refrigerant Circuit Guideline

    LX SERIES INSTALLATION MANUAL Refrigerant Circuit Guideline Head Suction Compressor Air Temp. Water Temp. Symptom Superheat Subcooling Pressure Pressure Amp Draw Differential Differential Under Charged System High (Possible Leak) Over Charged System High High High Normal High Normal/Low Normal Low Air Flow Heating...

  • Page 41: Heat Of Extraction/Rejection

    LX SERIES INSTALLATION MANUAL Heat of Extraction/Rejection Heat of Extraction (kBtuh) Heat of Rejection (kBtuh) Model 30°F 50°F 70°F 90°F 30°F 50°F 70°F 90°F 110°F 12.6 16.1 20.1 21.1 20.8 20.1 Part Load 13.2 17.4 21.4 20.3 21.2 20.9 20.1 19.4...

  • Page 42: Correction Factor Tables

    LX SERIES INSTALLATION MANUAL Correction Factor Tables Air Flow Corrections (Dual Capacity Part Load) Airflow Cooling Heating cfm Per Ton % of Nominal Total Cap Sens Cap Power Heat of Rej Htg Cap Power Heat of Ext of Clg 0.922 0.778...

  • Page 43: Antifreeze Corrections

    LX SERIES INSTALLATION MANUAL Antifreeze Corrections Catalog performance can be corrected for antifreeze use. Please use the following table and note the example given. Antifreeze Type Antifreeze % by wt Heating Cooling Pressure Drop EWT - °F [°C] 30 [-1.1] 90 [32.2]...
  • Page 44 LX SERIES INSTALLATION MANUAL Troubleshooting cont. Startup/ roubleshooting Form Controls Info: Dealer: ABC Version: Phone #: Date: IZ2 24V Version: Problem: Model #: T-Stat Version: Installed Sensors: Serial #: COOLING CYCLE ANALYSIS SAT °F °F Unit Amp Draw: Loop: Open...
  • Page 45 LX SERIES INSTALLATION MANUAL Troubleshooting cont. Single Speed/Dual Capacity Startup/Troubleshooting Form 1. Job Information Model # Job Name: Loop: Open / Closed Serial # Install Date: Hot Water Generator: Y / N 2. Flow Rate in gpm SOURCE COAX LOAD COAX (Water-to-Water)

  • Page 46: Preventive Maintenance

    LX SERIES INSTALLATION MANUAL Preventive Maintenance Proper maintenance is very important to obtain optimum Condensate Drain performance and longevity for the heat pump system. It is best to In areas where airborne bacteria produce a slime in the drain pan, establish a periodic maintenance schedule with the installer so the it may be necessary to treat chemically to minimize the problem.

  • Page 47: Service Parts List

    LX SERIES INSTALLATION MANUAL Service Parts List Dual Capacity Units Parts List Compressor 208-230/60/1 34P640-01 34P641-01 34P642-01 34P643-01 34P644-01 Run Capacitor 208-230/60/1 16P002D19 16P002D20 16P002D18 16P002D31 16P002D31 Compressor Power Harness 11P781-01 11P781-01 11P781-01 11P781-01 11P781-01 Solenoid Harness 11P782-02 11P782-02 11P782-02...
  • Page 48 LX SERIES INSTALLATION MANUAL Notes...

  • Page 49: Revision Guide

    LX SERIES INSTALLATION MANUAL Revision Guide Pages: Description: Date: Misc. Updated AHRI Data, Misc. Updates 01 Feb 2018 Misc. Updated Physical Data, Wiring Schematics, Controls Information 14 Dec 2016 Document Creation 17 Sept 2014...
  • Page 50 ©2018 The manufacturer has a policy of continual product research and development and reserves the right to change design and specifi cations without notice. IM2300AK6 03/18 York and Affi nity are registered trademarks of Johnson Controls, Inc., and are used with permission.

This manual is also suitable for:

Ylf024Ylf036Ylf048Ylf060Ylf072

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