Goodman Mfg CONDENSING AC UNIT SINGLE / THREE PHASE AIR CONDITIONERS, IO-402G Suct Liq

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WARNING

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.

Ensure the pressure rating meets or exceeds 400 lbs.

When in doubt, do not use cylinder.

Refrigerant Lines

NOTE: For improved refrigerant management, equip the evaporator coil with a field-supplied thermal expansion valve (TXV) and the liquid line with a field-supplied liquid line solenoid. Ensure the solenoid is installed as close as possible to the evaporator coil to prevent refrigeration migration in the compressor “OFF” cycle.

Use only refrigerant grade (dehydrated and sealed) copper tub- ing to connect the condensing unit with the indoor evaporator. After cutting the tubing, install plugs to keep refrigerant tubing clean and dry prior to and during installation. Tubing should always be cut square keeping ends round and free from burrs. Clean the tubing to prevent contamination.

Do NOT let refrigerant lines come in direct contact with plumb- ing, ductwork, floor joists, wall studs, floors, and walls. When running refrigerant lines through a foundation or wall, openings should allow for sound and vibration absorbing material to be placed or installed between tubing and foundation. Any gap between foundation or wall and refrigerant lines should be filled with a pliable silicon-based caulk, RTV or a vibration damping material. Avoid suspending refrigerant tubing from joists and studs with rigid wire or straps that would come in contact with the tubing. Use an insulated or suspension type hanger. Keep both lines separate and always insulate the suction line.

Cond Unit

REFRIGERANT LINE LENGTH (ft)

0-24

25-49*

50-74**

(Tons)

 

Line

Diameter (In.

OD)

 

 

Suct

Liq

Suct

Liq

Suct

Liq

7 1/2

1 1/8

5/8

1 3/8

5/8

1 3/8

5/8

10

1 3/8

5/8

1 5/8

5/8

1 5/8

5/8

*Full rating line size

**Lines greater than 74 feet in length or vertical elevation changes more than 50 feet refer to the Remote Cooling

Service Manual or contact your distributor for assistance.

Insulation is necessary to prevent condensation from forming and dropping from the suction line. Armflex (or satisfactory equivalent) with 3/8” min. wall thickness is recommended. In severe conditions (hot, high humidity areas) 1/2” insulation may be required. Insulation must be installed in a manner which protects tubing from damage and contamination.

Where possible, drain as much residual compressor oil from existing systems, lines, and traps; pay close attention to low areas where oil may collect. NOTE: If changing refrigerant types, ensure the indoor coil and metering device is compat- ible with the type of refrigerant being used; otherwise, the in- door coil must be replaced. To facilitate oil return to the com- pressor, a horizontal suction line should be pitched (1/2” per 10’ toward the condensing unit.

Filter Drier and Sight Glass

A liquid line filter drier is factory installed. Field-install the sup- plied sight glass/moisture indicator on the liquid line as close as practical to the service valve.

Burying Refrigerant Lines

If burying refrigerant lines can not be avoided, use the following checklist.

1.Insulate liquid and suction lines separately.

2.Enclose all underground portions of the refrigerant lines in waterproof material (conduit or pipe) sealing the ends where tubing enters/exits the enclosure.

3.If the lines must pass under or through a concrete slab, ensure lines are adequately protected and sealed.

3

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Contents Codes & Regulations Important Safety InstructionsImportant Note to the Owner Regarding Product Warranty Shipping InspectionRefrigerant Lines Installation ClearancesRooftop Installations Safe Refrigerant HandlingBurying Refrigerant Lines Leak Testing Nitrogen or Nitrogen-Traced Refrigerant Line ConnectionsSystem Evacuation No Leaks Electrical ConnectionsLow Voltage Connections Three Phase Compressor RotationOvercurrent Protection High Voltage ConnectionsCharge Verification Final Charge AdjustmentSaturated Suction Pressure Temperature Chart Expansion Valve System Fixed OrificeCooling Troubleshooting InformationThis page Intentionally Left Blank Split Systems Or death Condensing AC UnitRigging Suct Liq Cond Unit Refrigerant Line Length ft 25-49 50-74 TonsRefrigerant Line Connections Minimum Circuit Ampacity MCA 208/230V 197 253 460V 414 506Single State LOW Voltage HOOK-UP Ft-lbs TroubleshootingWiring Diagram Troubleshooting Analysis Table

CONDENSING AC UNIT SINGLE / THREE PHASE AIR CONDITIONERS, IO-402G specifications

Goodman Manufacturing's IO-402G is a prominent model in the realm of condensing air conditioning units, designed to serve both residential and commercial applications effectively. This unit stands out due to its robust construction and impressive energy efficiency, making it a reliable choice for air conditioning needs.

One of the main features of the IO-402G is its versatile power options, available in both single and three-phase configurations. This adaptability allows it to meet various electrical requirements, ensuring compatibility with different installation environments. The unit's design incorporates a high-efficiency scroll compressor, which not only optimizes cooling performance but also enhances durability while significantly reducing operational noise.

The IO-402G is equipped with advanced refrigerant management technology, utilizing R-410A refrigerant, which is environmentally friendly and delivers superior cooling efficiency compared to older refrigerants. This feature reflects Goodman’s commitment to sustainability while also aligning with regulatory changes in refrigerant usage. The unit’s efficiency is further complemented by a high SEER (Seasonal Energy Efficiency Ratio) rating, positioning it among the more energy-efficient systems available in the market today.

In terms of construction, the IO-402G boasts a durable cabinet designed to withstand various weather conditions, featuring a powder-coated finish that resists corrosion and fading. The unit also includes sound-dampening technology to minimize operational noise, ensuring that it operates quietly even in residential settings.

Additionally, the IO-402G provides easy access for service and maintenance, thanks to a user-friendly design that simplifies troubleshooting and repairs. The system is also compatible with a range of Goodman’s thermostats and controls, which can enhance user experience through smart technology and programmable settings.

Furthermore, Goodman’s commitment to quality is reflected in the warranty coverage available with the IO-402G, typically offering a generous limited warranty on parts, underscoring the manufacturer’s confidence in the unit’s longevity and performance.

Overall, the Goodman IO-402G condensing AC unit is an excellent choice for those seeking a reliable, efficient, and durable air conditioning solution for both residential and commercial applications. Its innovative design and thoughtful features make it a standout model in Goodman’s lineup, ensuring comfort and satisfaction for users all year round.