Trane A4HP4 Installation And Operation Manual
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Trane A4HP4 Installation And Operation Manual

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ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT - This Document is customer property and is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the
purchaser's purposes, the matter should be referred to your installing dealer or local distributor.
Note: The manufacturer recommends installing only approved matched indoor and outdoor systems. All of the manufacture's split
systems are A.H.R.I. rated only with TXV/EEV indoor systems. Some of the benefits of installing approved matched indoor and
outdoor split systems are maximum efficiency, optimum performance and the best overall system reliability.

Table of Contents

Section 1. Safety ..................................................................................... 2
Section 2. Unit Location Considerations.............................................. 4
Section 3. Unit Preparation .................................................................... 5
Section 4. Setting the Unit ..................................................................... 5
Section 5. Refrigerant Line Considerations ......................................... 6
Section 6. Refrigerant Line Routing ..................................................... 7
Section 7. Refrigerant Line Brazing ...................................................... 8
Section 8. Refrigerant Line Leak Check ............................................... 9
Section 9. Evacuation ............................................................................. 9
Section 10. Service Valves ..................................................................... 9
Section 11. Electrical - Low Voltage ................................................... 10
Section 12. Electrical - High Voltage .................................................. 11
Section 13. Start Up .............................................................................. 12
Section 14. System Charge Adjustment ............................................. 12
Section 15. Checkout Procedures ....................................................... 16
Section 16. Defrost Control ................................................................. 17
Section 17. Troubleshooting ................................................................ 20
Section 18. Wiring Diagrams ............................................................... 22
Section 19. Pressure Curves ............................................................... 27
Installation and Operation Manual
Heat Pumps
A4HP4
88-A4HP4001-1G-EN

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  • Page 1: Table Of Contents

    88-A4HP4001-1G-EN Installation and Operation Manual Heat Pumps A4HP4 ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES IMPORTANT – This Document is customer property and is to remain with this unit. Please return to service informa- tion pack upon completion of work.

  • Page 2: Section 1. Safety

    Section 1. Safety WARNING WARNING LIVE ELECTRICAL COMPONENTS! This information is intended for use by individuals During installation, testing, servicing, and trouble- possessing adequate backgrounds of electrical and shooting of this product, it may be necessary to work mechanical experience. Any attempt to repair a central with live electrical components.
  • Page 3 CAUTION WARNING HOT SURFACE! Warning! May cause minor to severe burning. Failure to follow This product can expose you to chemicals including this Caution could result in property damage or per- lead which are known to the State of California to sonal injury.

  • Page 4: Section 2. Unit Location Considerations

    Section 2. Unit Location Considerations 2.1 Unit Dimensions and Weight Table 2.1 Unit Dimensions and Weight Models H x D x W (in) Weight* (lb) A4HP4017D 28.6 X 25.6 X 25.6 A4HP4018D 32.6 X 29.8 X 29.8 A4HP4024D 32.6 X 29.8 X 29.8 A4HP4030D 28.6 X 29.8 X 29.8 A4HP4036D...

  • Page 5: Section 3. Unit Preparation

    2.4 Suggested Locations for Best Reliability Ensure the top discharge area is unrestricted for at least five (5) feet above the unit. Avoid Install Near Bedrooms Three (3) feet clearance must be provided in front of the control box (access panels) and any other side requiring service.

  • Page 6: Section 5. Refrigerant Line Considerations

    Section 5. Refrigerant Line Considerations 5.1 Refrigerant Line and Service Valve Connection Sizes Table 5.1 Line Sizes Service Valve Connection Sizes Vapor Liquid Vapor Line Liquid Line Model Line Line Connection Connection A4HP4017D A4HP4018D A4HP4024D A4HP4030D A4HP4036D A4HP4042D A4HP4048D A4HP4060D 5.2 Factory Charge The outdoor condensing units are factory charged with the system charge required for the outdoor condensing unit, ten (10) feet of tested connecting line, and the smallest rated indoor evaporative coil match.

  • Page 7: Section 6. Refrigerant Line Routing

    5.5 Reuse Existing Refrigerant Lines CAUTION If using existing refrigerant lines make certain that all joints are brazed, not soldered. For retrofit applications, where the existing indoor evaporator coil and/or refrigerant lines will be used, the following precautions should be taken: •...

  • Page 8: Section 7. Refrigerant Line Brazing

    Wall Sealant Insulation Ductwork Vapor Line Isolator Line Set DO NOT hang line sets from ductwork Isolation Through Wall Section 7. Refrigerant Line Brazing 7.1 Braze The Refrigerant Lines STEP 1 - Remove caps or plugs. Use a deburing tool to debur the pipe ends. Clean both internal and external surfaces of the tubing using an emery cloth.

  • Page 9: Section 8. Refrigerant Line Leak Check

    Section 8. Refrigerant Line Leak Check 8.1 Check For Leaks STEP 1 - Pressurize the refrigerant lines and evaporator coil to 150 PSIG using dry nitrogen. STEP 2 - Check for leaks by using a soapy solution or bubbles at each brazed location. Remove nitrogren pressure and repair any leaks before continuing.

  • Page 10: Section 11. Electrical - Low Voltage

    Section 11. Electrical - Low Voltage 11.1 Low Voltage Maximum Wire Length Table 11.1 Table 11.1 defines the maximum total length of low voltage wiring from the outdoor unit, to the 24 VOLTS indoor unit, and to the thermostat. WIRE SIZE MAX.

  • Page 11: Section 12. Electrical - High Voltage

    11.3 Defrost Control Defrost controls have a selectable termination tem- perature. As shipped, defrost will terminate at 47°F. Defrost Board Detail For a higher termination temperature, cut Jumper J2 to achieve 70°F. Refer to the Defrost Control section in this document for more information. Pin Identification on J5 (See Illustration) 1.

  • Page 12: Section 13. Start Up

    12.3 High Voltage Ground Ground the outdoor unit per national, state, and local code requirements. Section 13. Start Up 13.1 System Start Up STEP 1 - Ensure Sections 7 through 12 have been completed. STEP 2 - Set System Thermostat to OFF. STEP 3 - Turn on disconnect(s) to apply power to the indoor and outdoor units.
  • Page 13 2 1/2 Ton Heat Pump 3 Ton Heat Pump SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 1° 4° Add 2° Add 1° Add 1° Add 2° Add 1° Add 1°...
  • Page 14 Table 14.2 R-410A REFRIGERANT CHARGING CHART FINAL SUBCOOLING ( ° LIQUID TEMP ° LIQUID GAGE PRESSURE (PSI) 107 °F From Dwg. D154557P01 Rev. 3 STEP 6 - Adjust refrigerant level to attain proper gage pressure. Add refrigerant if the Liquid Gage Pressure is lower than the chart value. 1.
  • Page 15 Fixed Orifice Superheat Charging Table Indoor Wet Bulb Temp (F) Outdoor Bulb Temp. Using a digital psychrometer, measure the return air wet-bulb temperature at the unit just before the coil. Also measure the outdoor dry-bulb tem- perature. Use these temperatures to locate the target superheat on the charging table. Do not attempt to charge the system if these conditions fall outside of this charging table.

  • Page 16: Section 15. Checkout Procedures

    Calculating Charge Using the Weigh-In Method STEP 1 - Measure in feet the distance between the 1. Total Line length (ft) – 10 ft ______________ outdoor unit and the indoor unit. (Include the entire 2. Charge multiplier x ___0.6 oz _____ length of the line from the service valve to the IDU.) Subtract 10 ft from this entire length and record on 3.

  • Page 17: Section 16. Defrost Control

    Section 16. Defrost Control Defrost Control The demand defrost control measures heat pump out- door ambient temperature with a sensor located outside the outdoor coil. A second sensor located on the outdoor coil is used to measure the coil temperature. The dif- ference between the ambient and the colder coil tem- perature is the difference or delta-T measurement.
  • Page 18 Table 1. Defrost Control Thermistor Table Table 2. DEMAND DEFROST QUICK SPECS THERMISTOR DEFROST ENABLED: TEMP °F TEMP °C RESISTANCE Volts DC 52 °F 52 °F Y = ON COIL TEM- (OHMS) PERATURE -15.00 -26.11 135976 2.50 DEFROST PERMIT: Y 32 °F 32 °F = ON COIL TEMPERA-...
  • Page 19 c. Ambient sensor failure will initiate an Adaptive DEFROST Timed Limp Mode. This will be accompanied FAULT FAULT CONTROL DESCRIPTION by a 1 flash. The DFC will initiate defrost after CODES BEHAVIOR 60 minutes of accumulated heating runtime and force a defrost, which will terminate on Hard Lock Out (can coil temp.

  • Page 20: Section 17. Troubleshooting

    Section 17. Troubleshooting Compressor fails to start Contactor check Is contactor engergized? Go To: Compressor won’t run (contacts closed) Wait 3 minutes and check contactor Check for 24 volts AC coil again across contactor coil Is voltage If applicable, is TDR present at input voltage Replace contactor...
  • Page 21 Compressor won’t run Contactor is closed Check for high voltage to contactor Check for open IOL Is high voltage present (Internal Overload) at T1 and T2 ? Check resistance of C to S and C to R Does the Check power resistance check Allow compressor supply from...

  • Page 22: Section 18. Wiring Diagrams

    Section 18. Wiring Diagrams 88-A4HP4001-1G-EN...
  • Page 23 88-A4HP4001-1G-EN...
  • Page 24 88-A4HP4001-1G-EN...
  • Page 25 88-A4HP4001-1G-EN...
  • Page 26 Section 19. Pressure Curves COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2);...

  • Page 27: Section 19. Pressure Curves

    PRESSURE CURVES FOR A4HP4018D1 TAM9A0B30V31 TAM9A0B30V31 Cooling @ 900 SCFM Heating @ 850 SCFM INDOOR ENTERING INDOOR ENTERING WET BULB CURVES DRY BULB CURVES TOP TO BOTTOM TOP TO BOTTOM 80, 70, 71, 67, 63 AND 59 DEG F. AND 60 DEG F. OUTDOOR TEMPERATURE (Degree F) INDOOR ENTERING INDOOR ENTERING...
  • Page 28 PRESSURE CURVES FOR A4HP4030D1 TAM9A0B30V31DAB B TAM9A0B30V31DAB B Cooling @ 850 SCFM Heating @ 850 SCFM INDOOR ENTERING INDOOR ENTERING WET BULB CURVES DRY BULB CURVES TOP TO BOTTOM TOP TO BOTTOM 80, 70, 71, 67, 63 AND 59 DEG F. AND 60 DEG F.
  • Page 29 PRESSURE CURVES FOR A4HP4042A1 TEM4A0C42S41 TEM4A0C42S41 Cooling @ 1300 SCFM Heating @ 1300 SCFM INDOOR ENTERING INDOOR ENTERING WET BULB CURVES DRY BULB CURVES TOP TO BOTTOM TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. 80, 70, AND 60 DEG F. OUTDOOR TEMPERATURE (Degree F) INDOOR ENTERING INDOOR ENTERING...
  • Page 30 PRESSURE CURVES FOR A4HP4060A1 TEM4A0C60S51+TDR TEM4A0C60S51+TDR Cooling @ 1600 SCFM Heating @ 1550 SCFM INDOOR ENTERING INDOOR ENTERING WET BULB CURVES DRY BULB CURVES TOP TO BOTTOM TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. 80, 70, AND 60 DEG F. OUTDOOR TEMPERATURE (Degree F) INDOOR ENTERING INDOOR ENTERING...

  • Page 31: Section 20. Refrigerant Circuit (Only For Reference)

    Section 20. Refrigerant Circuit (only for reference) Heating Refrigeration Cycle Cooling Refrigeration Cycle Printed from D158861 88-A4HP4001-1G-EN...
  • Page 32 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org.

This manual is also suitable for:

A4hp4017dA4hp4018dA4hp4024dA4hp4030dA4hp4036dA4hp4042d ... Show all

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