Goodman GSX Series User Manual

SPLIT SYSTEM OUTDOOR UNIT
50HZ R410A GSX, GSZ SERIES
Installation & Operation Instructions
© 2012 Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
www.goodmanmfg.com -or- www.amana-hac.com
P/N: IO-436A Date: November 2012
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.
Prior to installation, thoroughly familiarize yourself with this
installation manual. Observe all safety warnings. During in-
stallation or repair, caution is to be observed. It is the re-
sponsibility of the installing personnel to install the product
safely and to educate the customer on its safe use.
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.
Installation and repair of this unit should be performed
by individuals meeting the requirements of an
“entry level technician” as specified by National Codes.
Attempting to install or repair this unit without such
background may result in product damage, personal
injury or death.
ONLY
Do not connect to or use any device that is not design-
certified by Goodman for use with this unit. Serious
property damage, personal injury, reduced unit
performance and/or hazardous conditions may result
from the use of such non-approved devices.
Shipping Inspection
Always keep the unit upright; laying the unit on its side or top
may cause equipment damage. Shipping damage, and sub-
sequent investigation is the responsibility of the carrier. Verify
the model number, specifications, electrical characteristics,
and accessories are correct prior to installation. The distribu-
tor 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 regula-
tions. Rated performance is achieved after 72 hours of op-
eration. Rated performance is delivered at the specified air-
flow. 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 ei-
ther website, please select the residential or commercial prod-
ucts menu and then select the submenu for the type of prod-
uct 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.
Electrical disconnection must be incorporated in the fixed wir-
ing in accordance with the wiring rules if equipment is not
fitted with a supply cord, a plug or with other means for dis-
connection from the supply mains having a contact separa-
tion in all poles that provide full disconnection under over
voltage category III conditions. (IEC 60336-1, 2010-5.)
Handling of refrigerant may be governed by various regu-
lations regarding the introduction and disposal of refrig-
erants. Failure to follow these regulations may harm the
environment and can lead to the imposition of substan-
tial fines. Should you have any questions please contact the
local office of the regulatory agency in your countries.
Replacement Parts
When reporting shortages or damages, or ordering repair
parts, give the complete product model and serial numbers
as stamped on the product. Replacement parts for this prod-
uct are available through your contractor or local distributor.

Goodman GSX Series Specifications

General

Refrigerant	R-410A
Stages	Single
SEER Rating	13-16
Cooling Capacity (BTU/h)	18, 000 - 60, 000 BTU/h
Compressor Type	Single-Stage
Sound Level (dB)	72-74
Warranty	10-year limited parts warranty

Summary

Important Safety Instructions

Critical Safety Warnings

Covers high voltage, qualified installers, child supervision, and use of certified devices.

Installation & Operation Guidelines

Shipping Inspection & Codes

Includes verifying contents and adhering to installation codes and regulations.

Replacement Parts

Details on ordering replacement parts.

Pre-Installation Instructions

Installation Preparation

Read instructions, gather tools, and ensure all supplies are ready before installation.

Scroll Compressor Unit Operation & Maintenance

Operating Procedures

Covers compressor handling, pump down, time delay, and safe unbrazing.

Maintenance Guidance

Outdoor unit inspection, cleaning, and air filter servicing are recommended.

Installation Location and Electrical Setup

Outdoor Unit Placement

Ensure unrestricted airflow, service access, and consider noise impact on occupied spaces.

Foundation and Drainage

Install on a solid, level foundation with good drainage, considering elevation for winter conditions.

Electrical Wiring and Insulation

Match power supply, follow codes, ensure grounding, and insulate suction lines.

Refrigerant Line Handling and Connections

Brazing and Preparation

Includes precautions for brazing, line preparation, and nitrogen sweeping.

Leak Testing

Pressure test the system using nitrogen and soapy water to detect leaks.

System Evacuation

Evacuate the system to 250 microns or less and hold vacuum to check for leaks.

System Start Up Procedures

Valve Operation and Charging

Open valves correctly, purge lines, and weigh in the calculated refrigerant charge.

Cooling Mode Setup

Set thermostat for cooling, check fan operation, and allow system stabilization.

Heating Capacity Determination

Determine indoor airflow and heating capacity using temperature rise or airflow instruments.

Heating Capacity Calculation and Data

Temperature Rise Measurement

Measure return and supply air temperatures accurately to determine temperature rise.

Heating Capacity Table

Use Table I to determine system power output based on airflow and temperature rise.

Refrigerant Charge Determination

Cooling Cycle Charging

Charge system by weight, adjusting for line size and length as per tables.

Superheat Method

Connect gauges, measure suction line temperature, and determine superheat.

System Superheat and Heat Pump Cycles

System Superheat Table

Use Table IV to check system superheat against ambient and return air temperatures.

Heat Pump Heating Cycle Startup

Follow startup checklist for heating mode, including thermostat settings and fan operation.

Heat Pump Operation and Components

Heating Cycle Operation Checks

Check supplementary heat, defrost cycle, air distribution, and vibrations.

Key Components Overview

Brief descriptions of Contactor, Crankcase Heater, Condenser Motor, Compressor, and Defrost Control.

Heat Pump Operation Explanation

Cooling vs. Heating Cycle

Explains how heat pump functions in cooling and heating modes, including refrigerant flow.

Defrost Cycle

Describes how defrost accumulation is managed by reversing the refrigerant flow.

Heat Pump Heating Cycle Issues

Common Unsatisfactory Operation Causes

Addresses dirty filters, outside air intrusion, undercharge, defrost thermostat, and reversing valve faults.

Economical Operation for Homeowners

Tips for efficient heat pump use, thermostat settings, and uniform room temperature.

Long Line Applications and Sizing

Refrigerant Line Length Charts

Provides tables for selecting correct refrigerant line diameters based on length and tonnage.

Suction Line Sizing Multipliers

Offers capacity multipliers for different suction line sizes and tubing lengths.