GE Appliances NS16A*5 Single Stage Split System Air Conditioner

Product Overview

The GE Appliances NS16A*5 is a single-stage split system air conditioner designed for efficient cooling. It utilizes R454B refrigerant.

Key Features:

• Single-stage operation
• Split system design
• R454B refrigerant
• ENERGY STAR Certified
• AHRI Certified
• ETL Certified

Visual Description of Unit: A visual representation of the outdoor unit, a square cabinet with a fan grille on the top and louvred panels on all four sides. The GE Appliances logo is prominently displayed on the front of the unit.

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Model Number Guide

The model number NS16A*5 follows a specific structure to denote its features:

Approvals and Applications

Approvals

• AHRI Standard 210-240-2023 certified
• AHRI Certified system match-ups and expanded ratings (visit AHRIDirectory.org)
• ENERGY STAR® Certified
• Sound rated to AHRI Standard 270-2008 test conditions
• Region-specific models meet U.S. DOE Federal Regional Standards
• ETL certified (U.S. and Canada)
• ISO 9001 Registered Manufacturing Quality System

Applications

• Available in 1.5 to 5 ton capacities
• Sound levels as low as 73 dBA
• Requires single-phase power supply
• Features vertical air discharge
• Applicable to indoor air handlers or gas furnaces with indoor add-on coils
• Units are factory test operated

Refrigerant System and Components

Refrigerant System

• R-454B Refrigerant: Features Low GWP (Global Warming Potential) and Zero ODP (Ozone Depletion Potential). The unit is factory pre-charged.

Outdoor Coil Fan

• Direct drive fan
• Vertical air discharge
• Totally enclosed fan motor with ball bearings
• Inherently protected motor
• Motor rain shield

Corrosion Resistant Coil

• Constructed with enhanced aluminum alloy tube and enhanced fin coil for superior corrosion resistance.
• Features ripple-edged aluminum fins and aluminum tube construction.
• Lanced fins maximize fin surface exposure.
• Factory tested under high pressure.
• The entire coil is accessible for cleaning.

High Capacity Liquid Line Drier

• Furnished with the unit for field installation.
• Traps moisture or dirt that could contaminate the refrigerant system.
• Utilizes a 100% molecular-sieve, bead-type drier.

High Pressure Switch

• Protects the system from high pressure conditions that can result from fan failure or a blocked/dirty coil.
• Features a manual reset.

Low Pressure Switch

• Shuts off the unit if suction pressure falls below a set point.
• Provides protection against loss of charge and freeze-up.
• Features an automatic reset.

Optional Accessories and Compressor Details

Optional Accessories

• Expansion Valve Kits: Factory installed with R-454B on all indoor units. Available with Chatleff style fitting.
• Freezestat: Senses suction line temperature and cycles the compressor off when it falls below a set point. Opens at 29°F and closes at 58°F. Installs on or near the evaporator discharge line or on the suction line.
• Loss of Charge Switch Kit: Protects the compressor from damage due to low refrigerant charge conditions. It is a SPST, normally-closed switch with automatic reset.
• Indoor Refrigerant Detection System (RDS): Complies with UL 60335-2-40. Required for all systems using R-454B. Factory or field installed, it includes a sensor and control. If refrigerant is detected, it prevents compressor and heating operation until the refrigerant is no longer detected. It also energizes the blower to dissipate refrigerant concentrations. Refer to indoor unit Product Specifications for details.

Compressor

• Single Stage Scroll Compressor: Offers high volumetric efficiency, uniform suction flow, constant discharge flow, high efficiency, and quiet operation. Low gas pulses reduce operational sound. The compressor motor is internally protected from excessive current and temperature. A muffler in the discharge line further reduces operating sound. It is installed on resilient rubber mounts for vibration-free operation.
• Compressor Crankcase Heater: Prevents migration of liquid refrigerant into the compressor and ensures proper compressor lubrication.
• Compressor Sound Cover: Features a polymer outer shell with 1-1/2 inch thick fiberglass insulation, with edges sealed by hook and loop fastening tape.
• Compressor Hard Start Kit: For single-phase PSC compressor motors, this kit may be required for low voltage conditions to increase compressor starting torque.
• Compressor Low Ambient Cut-Off: A non-adjustable switch that prevents compressor operation in cooling mode when the outdoor temperature is below 35°F.
• Compressor Time-Off Control: Prevents compressor short-cycling by allowing time for suction and discharge pressure to equalize, permitting compressor start-up in an unloaded condition. Features a 5-minute automatic reset delay.
• Indoor Blower Off Delay Relay Kit: Delays the indoor blower-off time during the cooling cycle.
• Low Ambient Kit: Allows the unit to operate properly down to 30°F in cooling mode. The heat pump can operate in cooling mode down to 45°F outdoor air temperature without additional controls.

NOTE: Crankcase heater and freezestat should be installed on compressors equipped with a low ambient kit. A compressor lock-out thermostat should be added to terminate compressor operation below recommended operation conditions.

Cabinet and Connections

Cabinet

• Constructed from heavy gauge steel.
• Features louvered heavy gauge steel panels on all four sides.
• Has a pre-painted cabinet finish.
• Includes a conveniently located control box with factory-wired controls.
• A corner patch plate allows access to compressor components.
• Drainage holes are provided in the base section for moisture removal.

Refrigerant Line Connections, Electrical Inlets, Service Valves

• Features sweat connection vapor and liquid lines located on the corner of the unit cabinet.
• The suction valve can be fully shut off, while the liquid valve may be front-seated to manage refrigerant charge during servicing.
• Refrigerant line connections and field wiring inlets are located in one central area of the cabinet for easy access. Refer to dimension drawing for specifics.

Braze-Free/Press Fitting Flexibility

• Units can accommodate braze-free or press fittings for installation versatility.

Specifications

General Specifications

Outdoor Coil and Fan Specifications

Electrical Data

Optional Accessories - Order Separately

Notes:

• Extremes of operating range are plus 10% and minus 5% of line voltage.
• Refrigerant charge is sufficient for 15 ft. length of refrigerant lines. For longer line set requirements, see the Installation Instructions for information about line set length and additional refrigerant charge required.
• HACR type breaker or fuse.
• Refer to National or Canadian Electrical Code manual to determine wire, fuse, and disconnect size requirements.
• Crankcase Heater and Freezestat are recommended with Low Ambient Kit.

Dimensions

Unit Dimensions

Diagram Description: A top view of the unit shows air inlet and outlet ports, along with suction and liquid line connections. A top view of the base section illustrates the compressor placement and mounting points. The diagram also indicates optional unit stand-off kits and coil drain outlets.

Sound Data and Installation

Expanded Sound Data

The following table provides octave band sound power levels and estimated sound pressure levels at various distances.

Notes: Octave sound power data does not include tonal correction. Testing according to AHRI Standard 270-2008. Estimated sound pressure levels based on AHRI Standard 275-2010 for equipment on ground/roof/side of building with no adjacent reflective surface within 9.8 feet. Sound pressure levels may increase based on changes to assumptions. Refer to AHRI Standard 275 for other applications.

Field Wiring

Wiring connections are described as follows:

• A: Two Wire Power (not furnished). See Indoor Unit Electrical Data.
• B: Two Wire Power (not furnished). See Electrical Data.
• C: Four Wire Low Voltage (not furnished). 18 ga. minimum.
• D: Five Wire Low Voltage (not furnished). 18 ga. minimum.

All wiring must conform to NEC or CEC and local electrical codes.

Diagram Description: A block diagram illustrates the field wiring connections between the Air Conditioner, a Thermostat (required), and a Heating Unit or Air Handler Unit. Disconnect switches are shown on the power supply lines.

Installation Clearances

Required clearances for installation:

• Service Clearance: 30 in. (762 mm) on one side adjacent to the Control Box.
• One of the other three sides must have 36 in. (914 mm).
• One of the remaining sides may be 12 in. (305 mm).
• The remaining side may be 6 in. (152 mm).
• 48 in. (1219 mm) clearance required on top of the unit.
• 24 in. (610 mm) required between two units.

TXV Usage and AHRI Standard

TXV Usage and Substitution

All GE Appliances coils and air handlers are shipped with a factory-installed TXV. Substitution is generally not needed unless specified.

TXV Substitution - R-454B: This is a guide for replacing the factory-installed R-454B TXV if the indoor unit (coil/air handler) is larger or smaller than the outdoor unit.

TXV Ranges:

• 26Z70: 1.5 to 3 ton systems - Use on 3 ton (036) and lower systems.
• 26Z71: 3.5-4 ton systems - Use on 4 ton (048) and down to 3.5 ton (042) systems.
• 26Z72: 5 ton systems - Use on 5 ton (060) systems only.

AHRI Standard 210-240-2023

Cooling or heating capacities are net values, including the effects of blower motor heat, and do not include supplementary heat. Power input is the total power input to the compressor(s) and fan(s), plus any controls and other items required for normal operation. For units without an indoor blower, cooling capacity is reduced by 1250 Btu/h per 1,000 cfm, and heating capacity is increased by the same amount. Total power input for heating and cooling increases by 365 W per 1,000 cfm of indoor air circulated.

Notes and Disclaimer

Notes:

All specifications and illustrations subject to change without notice and without incurring obligations. Printed in the U.S.A.