Goodman IO-402K Installation & Service Reference
Goodman IO-402K Installation & Service Reference

Goodman IO-402K Installation & Service Reference

Condensing ac unit single / three phase air conditioners

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CONDENSING AC UNIT
SINGLE / THREE PHASE AIR CONDITIONERS
INSTALLATION & SERVICE REFERENCE
NOTICE
THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM
HOLDING CHARGE ONLY. UNIT MUST BE EVACUATED
AND CHARGED PER INSTALLATION INSTRUCTIONS
WITH REFRIGERANT LISTED ON SERIAL RATING PLATE.
NOTICE
UNITS SHIPPED WITH A HOLDING CHARGE ARE
INTENDED FOR COMPONENT REPLACEMENT ONLY ON
EXISTING SYSTEMS, AND NOT INTENDED FOR USE IN
NEW SYSTEMS OR NEWLY CONSTRUCTED HOMES.
EPA REGULATIONS PROHIBIT THE SALE OR
DISTRIBUTION OF APPLIANCES PRE-CHARGED WITH
THE REFRIGERANT R-22 IF THOSE APPLIANCES ARE
MANUFACTURED AFTER JANUARY 1, 2010.
COMPONENTS OF EXISTING R-22 SYSTEMS MAY BE
REPAIRED AND/OR REPLACED.
NOTICE
UNITS MUST ONLY BE USED AS REPLACEMENT
COMPONENTS FOR PRE-2010 INSTALLED SYSTEMS.
See unit rating plate for initial charge.
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 com-
ply 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.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
ONLY individuals meeting (at a minimum) the
requirements of an "Entry Level Technician" as
specified by the
Air-Conditioning, Heating and
Refrigeration Institute (AHRI)
information. Attempting to install or repair this unit
without such background may result in product
damage, personal injury, or death.
may use this
© 2010-2012, 2014-2015
Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
www.goodmanmfg.com
P/N: IO-402K
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.
Important Note to the Owner Regarding
Product Warranty
Your warranty certificate is supplied as a separate document
with the unit installed by your contractor. Read the limited war-
ranty certificate carefully to determine what is and is not cov-
ered and keep the warranty certificate in a safe place. If you are
unable to locate the warranty certificate please contact your
installing contractor or contact customer service (877-254-4729)
to obtain a copy.
Shipping Inspection
Always keep the unit upright; laying the unit on its side or top
may cause equipment damage. Shipping damage, and subse-
quent 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 transpor-
tation damage or installation of incorrectly shipped units.
Codes & Regulations
This product is designed and manufactured to comply with na-
tional 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 equip-
ment 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 speci-
fication sheet for packaged and light commercial models. Speci-
fication sheets can be found at www.goodmanmfg.com. To
access the specification sheets, 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 con-
tain links to that model's specification sheet.
Date: May 2015

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Summary of Contents for Goodman IO-402K

  • Page 1 © 2010-2012, 2014-2015 CONDENSING AC UNIT Goodman Manufacturing Company, L.P. 5151 San Felipe, Suite 500, Houston, TX 77056 SINGLE / THREE PHASE AIR CONDITIONERS www.goodmanmfg.com INSTALLATION & SERVICE REFERENCE P/N: IO-402K Date: May 2015 NOTICE CAUTION THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM Scroll equipped units should never be used to evacuate HOLDING CHARGE ONLY.
  • Page 2: Installation Clearances

    The United States Environmental Protection Agency (EPA) This unit can be located at ground floor level or on flat roofs. At has issued various regulations regarding the introduc- ground floor level, the unit must be on a solid, level foundation tion and disposal of refrigerants.
  • Page 3: Refrigerant Lines

    To avoid possible explosion, use only returnable (not disposable) service cylinders when removing refrig- erant from a system. • Ensure the cylinder is free of damage which could lead to a leak or explosion. • Ensure the hydrostatic test date does not exceed 5 years.
  • Page 4 ensure lines are adequately protected and sealed. side the refrigerant lines. This may cause a blockage or failure of the metering device. Refrigerant Line Connections 3. After brazing, quench the joints with water or a wet cloth to prevent overheating of the service valve. NOTICE 4.
  • Page 5: High Voltage

    or pump down a heat pump or air conditioning system. 5000 NOTICE 4500 THIS UNIT IS SHIPPED WITH A NITROGEN/HELIUM 4000 HOLDING CHARGE ONLY. UNIT MUST BE EVACUATED LEAK(S) 3500 PRESENT AND CHARGED PER INSTALLATION INSTRUCTIONS 3000 WITH REFRIGERANT LISTED ON SERIAL RATING PLATE. 2500 2000 NOTICE...
  • Page 6 Local codes often require a disconnect switch located near the System Start Up unit; do not install the switch on the unit. Refer to the installa- tion instructions supplied with the indoor furnace/air handler for CAUTION specific wiring connections and indoor unit configuration. Like- POSSIBLE REFRIGERANT LEAK wise, consult the instructions packaged with the thermostat To avoid a possible refrigerant leak, open the service...
  • Page 7 Charge Verification CAUTION Operating the compressor with the suction valve closed WARNING may cause serious compressor damage. REFRIGERANT UNDER PRESSURE! • Do not overcharge system with refrigerant. Final Charge Adjustment • Do not operate unit in a vacuum or at negative pres- sure.
  • Page 8 SATURATED SUC TION PRESSURE SATURATED LIQUID PRESSURE TEMPERATURE CH ART TEMPERATURE CHART SATURATED SUCTION SATURATED LIQUID SUCTION PRESSUR E LIQUID PRESSURE TEMPERATURE ºF TEMPERATURE ºF PSIG R-22 PSIG R-22...
  • Page 9: Expansion Valve System

    3. Check subcooling and superheat. Systems with TXV ap- Fixed Orifice plication should have a subcooling of 7 to 9 ºF and super- CAUTION heat of 7 to 9 ºF. If subcooling and superheat are low, adjust TXV to To prevent personal injury, carefully connect and disconnect 7 to 9 ºF superheat, then check subcooling.
  • Page 10: Troubleshooting Information

    Troubleshooting Information System Unsatisfactory No Cooling Operating Complaint Cooling Pressures POSSIBLE CAUSE Test Method DOTS IN ANALYSIS Remedy GUIDE INDICATE "POSSIBLE CAUSE" • Power Failure Test Voltage • • • Blown Fuse Impact Fuse Size & Type • • • •...
  • Page 11 THIS PAGE INTENTIONALLY LEFT BLANK...
  • 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. EPLACE OR LEAN ILTER LEAN UTSIDE UALIFIED ERVICER IMPORTANT NOTE: Never operate unit without a filter installed as dust and lint will build up on internal parts resulting in loss of efficiency, equipment damage and possible fire.

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