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CONDENSING UNIT
HEAT PUMP
INSTALLATION & SERVICE REFERENCE
IMPORTANT SAFETY INSTRUCTIONS
The following symbols and labels are used throughout this
manual to indicate immediate or potential safety hazards.
It is the owner's and installer's responsibility to read
and comply with all safety information and instructions
accompanying these symbols. Failure to heed safety
information increases the risk of personal injury, property
damage, and/or product damage.
High Voltage!
Disconnect all power before servicing or install-
ing this unit. Multiple power sources may be pres-
ent. Failure to do so may cause property damage,
personal injury or death.
Only personnel that have been trained to install, adjust,
service, maintenance or repair (hereinafter, "service") the
equipment specified this manual should service the equip-
ment.
This equipment is not intended for use by persons (includ-
ing children) with reduced physical, sensory or mental ca-
pacities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use
of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not
play with the equipment.
The manufacturer will not be responsible for any injury
or property damage arising from improper supervision,
service or service procedures. If you service this unit, you
assume responsibility for any injury or property damage
which may result. In addition, in jurisdictions that require
one or more licenses to service the equipment specified in
this manual, only licensed personnel should service the
equipment. Improper supervision, installation, adjustment,
servicing, maintenance or repair of the equipment specified
in this manual, or attempting to install, adjust, service or
repair the equipment specified in this manual without prop-
er supervision or training may result in product damage,
property damage, personal injury or death.
Do not bypass safety devices.
WARNING
WARNING
WARNING
19001 Kermier Rd., Waller, TX 77484
www.goodmanmfg.com • www.amana-hac.com
© 2021-2023 Daikin Comfort Technologies Manufacturing, L.P.
is a registered trademark of Maytag Corporation or its related companies
and is used under license. All rights reserved.
© 2020-2023
Daikin Comfort Technologies Manufacturing, L.P.
19001 Kermier Rd., Waller, TX 77484
www.goodmanmfg.com -or- www.amana-hac.com
P/N: IOG-4009N
Scroll equipped units should never be used to evacuate
the air conditioning system. Vacuums this low can cause
internal electrical arcing resulting in a damaged or failed
compressor.
SHIPPING INSPECTION
Always keep the unit upright; laying the unit on its side
or top may cause equipment damage. Shipping damage,
and subsequent investigation is the responsibility of
the carrier. Verify the model number, specifications,
electrical characteristics, and accessories are correct
prior to installation. The distributor or manufacturer will not
accept claims from dealers for transportation damage or
installation of incorrectly shipped units.
CODES & REGULATIONS
This product is designed and manufactured to comply
with national codes. Installation in accordance with such
codes and/or prevailing local codes/regulations is the
responsibility of the installer. The manufacturer assumes
no responsibility for equipment installed in violation of any
codes or regulations. Rated performance is achieved after
20 hours of operation. Rated performance is delivered at
the specified airflow. See outdoor unit specification sheet
for split system models or product specification sheet for
packaged and light commercial models. Specification
sheets can be found at www.goodmanmfg.com for
Goodman® brand products or www.amana-hac.com for
Amana
brand products. Within either website, please
®
select the residential or commercial products menu and
then select the submenu for the type of product to be
installed, such as air conditioners or heat pumps, to access
a list of product pages that each contain links to that
model's specification sheet.
The United States Environmental Protection Agency
(EPA) has issued various regulations regarding the
introduction and disposal of refrigerants. Failure to
follow these regulations may harm the environment
and can lead to the imposition of substantial fines.
Date: March 2023
CAUTION

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Summary of Contents for Amana SZC 160241

  • Page 1 The manufacturer will not be responsible for any injury or property damage arising from improper supervision, Goodman® brand products or www.amana-hac.com for service or service procedures. If you service this unit, you Amana brand products.
  • Page 2: Installation Clearances

    NOTICE: This unit is equipped with a 24 VAC transformer that powers the heat pump control board. When installed as a communicating system, only 2 wires are needed between indoor and outdoor equipment. However, when installed as a non-communicating (legacy) system, the transformer wiring (low voltage and line voltage) must be disconnected.
  • Page 3: Refrigerant Lines

    REFRIGERANT LINES In more severe weather locations, it is recommended that the unit be elevated to allow unobstructed drainage and air flow. The elevation minimums at right are recommended: CAUTION Design Temperature Suggested Minimum Elevation The compressor POE oil for R-410A units is extremely sus - +15°...
  • Page 4: Burying Refrigerant Lines

    EXISTING LINE SETS heat trap compound. NOTE: Remove Schrader valves from service valves before brazing tubes to the valves. Use a brazing alloy of 2% minimum silver content. Do Where possible, drain as much residual compressor not use flux. oil from existing systems, lines, and traps; pay close attention to low areas where oil may collect.
  • Page 5: System Evacuation

    Using dry nitrogen, pressurize the system to 450 PSIG. 1. Connect the vacuum pump, micron gauge, and Allow the pressure to stabilize and hold for 15 minutes vacuum rated hoses to both service valves. (minimum). If the pressure does not drop below 450 PSIG Evacuation must use both service valves to eliminate the system is considered leak free.
  • Page 6: Overcurrent Protection

    condensing unit. Consult the NEC, CEC, and all local NOTE: For two-stage units, refer to the codes to determine the correct wire gauge and length. Installation Instructions supplied with the Local codes often require a disconnect switch located near variable speed indoor units for field wiring connections.
  • Page 7: Final Charge Adjustment

    NOTE: Charge should always be checked using superheat when using a piston and subcooling CAUTION when using TXV equipped indoor coil to verify proper charge. Use refrigerant certified to AHRI standards. Used refriger- ant may cause compressor damage, and is not covered under the warranty.
  • Page 8: Expansion Valve System

    2. Clamp a pipe clamp thermometer on the liquid line SATURATED SUCTION PRESSURE near the liquid line service valve and 4-6” from the TEMPERATURE CHART compressor on the suction line. SUCTION SATURATED SUCTION a. Ensure the thermometer makes adequate contact PRESSURE TEMPERATURE °F to obtain the best possible readings.
  • Page 9: Heat Pump - Heating Cycle

    HEAT PUMP - HEATING CYCLE 4. TXV-based systems should have a Subcooling value of 6°F +/- 1°F. The proper method of charging a heat pump in the heat 5. Add refrigerant to increase Subcooling and remove mode is by weight with the additional charge adjustments refrigerant to decrease Subcooling.
  • Page 10: Airflow Consideration

    In a traditional system, the thermostat sends commands For example, assume the system is a heat pump matched to the indoor and outdoor units via analog 24 VAC signals. with an air handler. With a call for low stage cooling, the It is a one-way communication path in that the indoor and heat pump will calculate the system’s low stage cooling outdoor units typically do not return information to the...
  • Page 11: Device Settings

    NOTE: It is highly recommended that the fault OUTDOOR INDOOR BOARD TERMINAL BOARD TERMINAL history be cleared after performing maintenance CONNECTIONS CONNECTIONS or servicing the heat pump. OUTDOOR TRANSFORMER Identification Model Number, Serial Number and Software Version are displayed within this menu. A model number check will help determine if the equipment shared data is correct for the unit.
  • Page 12 100% CFM • Profile D ramps up to 50% of the demand for 1/2 minute, then ramps to 82% of the full cooling demand airflow and operates there for approximately 7 1/2 minutes. The motor then steps up to the full demand airflow.
  • Page 13 TROUBLESHOOTING INFORMATION: CONDENSING UNIT System No Cooling Unsatisfactory Cooling/Heating Complaint Operating Pressures POSSIBLE CAUSE Test Method DOTS IN ANALYSIS Remedy GUIDE INDICATE "POSSIBLE CAUSE" • Power Failure Test Voltage • • • Blown Fuse Inspect Fuse Size & Type • •...
  • Page 14: System Troubleshooting

    TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES SYSTEM TROUBLESHOOTING UNITARY DIAGNOSTIC CODES Diagnostic/Status LED Symptoms of Abnormal Display Codes Corrective Notes & Fault Description Possible Causes Operation Actions Cautions Digit3 Digit2 Digit 1 • Integrated control module BLANK • Outdoor air temp •...
  • Page 15 TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES UNITARY DIAGNOSTIC CODES Diagnostic/Status Symptoms of LED Display Codes Fault Description Possible Causes Corrective Actions Notes & Cautions Abnormal Operation Digit3 Digit2 Digit 1 • Air conditioner/heat pump fails to BLANK • Data not yet on •...
  • Page 16 TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES UNITARY DIAGNOSTIC CODES Diagnostic/Status Symptoms of Abnormal LED Displav Codes Possible Notes & Fault Description Corrective Actions Operation Causes Cautions Digit 3 Digit 2 Digit 1 • Air conditioner/heat pump fails to BLANK • Configuration Mis- •...
  • Page 17 TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES UNITARY DIAGNOSTIC CODES Diagnostic/Status Fault LED Display Codes Possible Causes Corrective Actions Notes & Cautions Symptoms of Abnormal Operation Description Digit3 Digit2 Digit 1 • Compressor and outdoor fan are off. BLANK • Low Pressure Cut Out •...
  • Page 18 TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES UNITARY DIAGNOSTIC CODES Diagnostic/Status Symptoms LED Display Codes Possible Notes & Abnormal Operation Fault Description Corrective Actions Causes Cautions Digit3 Digit2 Digit 1 • Run time for last 4 cycles is less BLANK • Short Cycling •...
  • Page 19 TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES UNIT ARY DIAGNOST IC CODES Diagnostic/Status LED Display Codes Symptoms of Abnormal Notes & Fault Description Possible Causes Corrective Actions Operation Cautions Digit 3 Digit 2 Digit 1 • Air conditioner/heat pump BLANK • High Line Voltage • High line voltage •...
  • Page 20 TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES UNIT ARY DIAGNOST IC CODES Diagnostic/Status LED Display Codes Notes & Symptoms of Abnormal Fault Description Possible Causes Corrective Actions Cautions Operation Digit 3 Digit 2 Digit 1 • Air conditioner/heat pump BLANK • High Line Voltage • High line voltage •...
  • Page 21 SPLIT SYSTEMS AIR CONDITIONING AND HEAT PUMP HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS We strongly recommend a bi-annual maintenance checkup be performed before the heating and cooling seasons begin by a qualified servicer. Replace or Clean Filter Clean Outside Coil (Qualified Servicer Only) IMPORTANT NOTE: Never operate unit without a filter WARNING installed as dust and lint will build up on internal parts...
  • Page 22: Start-Up Checklist

    START-UP CHECKLIST Condenser / Heat Pump (including all Inverter) Model Number Serial Number ELECTRICAL (Outdoor Unit) Line Voltage (Measure L1 and L2 Voltage) L1 - L2 Secondary Voltage (Measure Transformer Output Voltage) NOT ALL MODELS R - C Compressor Amps Condenser Fan Amps TEMPERATURES (Indoor Unit) Return Air Temperature (Dry bulb / Wet bulb)
  • Page 23 THIS PAGE LEFT INTENTIONALLY BLANK...
  • Page 24: Customer Feedback

    Please fill out the feedback form on one of the following links: Goodman Brand Products: (http://www.goodmanmfg.com/about/contact-us). ® Amana Brand Products: (http://www.amana-hac.com/about-us/contact-us). ® You can also scan the QR code on the right for the product brand you purchased to be directed to the feedback page. GOODMAN BRAND ®...

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