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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 installing this unit. Multiple power
sources may be present. Failure to do
so may cause property damage, personal
injury or death.
Only personnel that have been trained to install,
adjust, service or repair(hereinafter, "service")
the equipment specified in this manual should
service the equipment. The manufacturer will
not be responsible for any injury or property
damage arising from improper 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 installation, adjustment, servicing or
repair of the equipment specified in this manual,
or attempting to install, adjust, service or
repair the equipment specified in this manual
without proper training may result in product
damage, property damage, personal injury or
death.
CAUTION
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.
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
WARNING
WARNING
Goodman Manufacturing Company, L.P.
19001 Kermier Rd. Waller, Tx 77484
www.goodmanmfg.com -or- www.amana-hac.com
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
72 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.
Should you have any questions please contact the local
office of the EPA.
If replacing a condensing unit or air handler, the system
must be manufacturer approved and Air Conditioning,
Heating and Refrigeration Institute (AHRI) matched.
NOTE: Installation of unmatched systems is not allowed.
Outdoor units are approved for operation above 55°F in
cooling mode. Operation below 55°F in cooling mode
requires the use of an approved low ambient kit.
Operating the unit in a structure that is not complete (either
as part of new construction or renovation) will void the
warranty.
© 2005-2021
P/N: IO-259U
Date: May 2021
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Table of Contents
Related Manuals for Goodman IO-259U
Summary of Contents for Goodman IO-259U
- Page 1 Only personnel that have been trained to install, adjust, service or repair(hereinafter, “service”) Goodman® brand products or www.amana-hac.com for the equipment specified in this manual should Amana® brand products. Within either website, please service the equipment.
-
Page 2: Installation Clearances
INSTALLATION CLEARANCES ROOFTOP INSTALLATIONS Special consideration must be given to location of the If it is necessary to install this unit on a roof structure, condensing unit(s) in regard to structures, obstructions, ensure the roof structure can support the weight and that other units, and any/all other factors that may interfere with proper consideration is given to the weather-tight integrity air circulation. -
Page 3: Refrigerant Lines
These sizes are recommended for line lengths of 79 feet or less to obtain optimum performance. For alternate line WARNING sizing options or runs of more than 79 feet, refer to TP-107 R-410A Long Line Set Application Guidelines or contact To avoid possible explosion: your distributor for assistance. - Page 4 Where possible, drain as much residual compressor oil NOTE: Be careful not to kink or dent refrigerant from existing systems, lines, and traps; pay close attention lines. Kinked or dented lines will cause poor to low areas where oil may collect. NOTE: If changing performance or compressor damage.
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Page 5: Electrical Connections
refrigerant. Using dry nitrogen finish charging the system 2: If the same result is achieved check for leaks and to 450 PSIG. Apply the leak detector to all suspect areas. repair. Repeat the evacuation procedure. When leaks are discovered, repair the leaks, and repeat 5. -
Page 6: Overcurrent Protection
Local codes often require a disconnect switch located near SYSTEM COMPOSITE DIAGRAM the unit; do not install the switch on the unit. Refer to the HEAT PUMPS 10 KW & BELOW installation instructions supplied with the indoor furnace/ TYPICAL H/P HEAT PUMP air handler for specific wiring connections and indoor unit #18 GA. -
Page 7: Charge Verification
Adequate refrigerant charge for the matching HSVTC evaporator coil and 15 feet of lineset is supplied with CAUTION the condensing unit. If using evaporator coils other than HSVTC coil, it may be necessary to add or remove Use refrigerant certified to AHRI standards. Used refrigerant may cause compressor damage. - Page 8 Fixed Orifice CAUTION To prevent personal injury, carefully connect and disconnect manifold gauge hoses. Escaping liquid refrigerant can cause burns. Do not vent refrigerant into the atmosphere. Recover all refrigerant during system repair and before final unit disposal. 1. Purge gauge lines. Connect service gauge manifold to base-valve service ports.
- Page 9 SATURATED SUCTION PRESSURE SATURATED LIQUID PRESSURE TEMPERATURE CHART TEMPERATURE CHART SATURATED SUCTION SATURATED LIQUID SUCTION PRESSURE LIQUID PRESSURE TEMPERATURE ºF TEMPERATURE ºF PSIG R-22 R-410A PSIG R-22 R-410A NOTE: Specifications And Performance Data Listed Herein Are Subject To Change Without Notice.
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Page 10: Expansion Valve System
EXPANSION VALVE SYSTEM HEAT PUMP - HEATING CYCLE The proper method of charging a heat pump in the heat NOTE: Units matched with indoor coils equipped mode is by weight with the additional charge adjustments with non-adjustable TXV should be charged by for line size, line length, and other system components. -
Page 11: Troubleshooting Information
TROUBLESHOOTING INFORMATION System Unsatisfactory Complaint No Cooling Operating Cooling Pressures POSSIBLE CAUSE Test Method DOTS IN ANALYSIS Remedy GUIDE INDICATE "POSSIBLE CAUSE" Power Failure • Test Voltage Blown Fuse • • • Impact Fuse Size & Type Loose Connection • •... -
Page 12: Split Systems
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 installed as dust and lint will build up on WARNING... - Page 13 THIS PAGE IS INTENTIONALLY LEFT BLANK...
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- Page 16 • Warranties • Parts • Financing Options 19001 Kermier Rd. Waller, Tx 77484 www.goodmanmfg.com -or- www.amana-hac.com © 2005-2021 Goodman Manufacturing Company, L.P. is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.