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508296-G01 / 31-5000753

Issue 2231

General

This NS23AMA outdoor air conditioner with all-aluminum 

coil is designed for use with HFC-410A refrigerant only. 

This unit must be installed with an approved indoor air 

handler or coil. The NS23AMA variable capacity unit may 

be installed with an A3 communicating thermostat or a 

standard 24VAC thermostat. See field wiring diagrams for 

wiring details. These instructions are intended as a general 

guide and do not supersede local codes in any way. Consult 

authorities having jurisdiction before installation.

NOTE: 

Special procedures are required for cleaning 

the all-aluminum coil in this unit. See Page 22 in this 

instruction for information. 

Inspection of Shipment

Upon receipt of equipment, carefully inspect it for possible 

shipping damage. If damage is found, it should be noted 

on the carrier’s freight bill. Take special care to examine 

the unit inside the carton if the carton is damaged. Any 

concealed damage discovered should be reported to the 

last carrier immediately, preferably in writing, and should 

include a request for inspection by the carrier’s agent.

If any damages are discovered and reported to the carrier 

DO NOT INSTALL THE UNIT

, as claim may be denied.

Check the unit rating plate to confirm specifications are as 

ordered.

Safety Precautions

Follow all safety codes. Wear safety glasses and work 

gloves. Use quenching cloth for brazing operations. 

Have fire extinguisher available. Read these instructions 

thoroughly and follow all warning or cautions attached to 

the unit.
1.  Always wear proper personal protection equipment.
2.  Always disconnect electrical power before removing 

panel or servicing equipment.

3.  Keep hands and clothing away from moving parts.
4.  Handle refrigerant with caution; refer to proper MSDS 

from refrigerant supplier.

5.  Use care when lifting, avoid contact with sharp edges.

Installation

NOTE: 

In some cases, noise in the living area has been 

traced to gas pulsations from improper installation of 

equipment.

•  Locate unit away from windows, patios, decks, etc. 

where unit operation sounds may disturb customer.

•  Leave some slack between structure and unit to 

absorb vibration.

•  Place a sound-absorbing material, such as Isomode, 

under the unit if it will be installed in a location or 

position that will transmit sound or vibration to the 

living area or adjacent buildings.

•  Install the unit high enough above the ground or roof to 

allow adequate drainage of defrost water and prevent 

ice buildup.

•  In heavy snow areas, do not locate the unit where 

drifting snow will occur. The unit base should be 

elevated above the depth of average snows.

NOTE: 

Elevation of the unit may be accomplished 

by constructing a frame using suitable materials. If a 

support frame is constructed, it must not block drain 

holes in unit base.

•  When installed in areas where low ambient 

temperatures exist, locate unit so winter prevailing 

winds do not blow directly into outdoor coil.

•  Locate unit away from overhanging roof lines which 

would allow water or ice to drop on, or in front of, coil 

or into unit.

To prevent personal injury, as well as damage to panels, 

unit or structure, observe the following: 
While installing or servicing this unit, carefully stow all 

removed panels so that the panels will not cause injury 

to personnel, objects or nearby structures. Also, take 

care to store panels where they will not be subject to 

damage (e.g., being bent or scratched).
While handling or stowing the panels, consider any 

weather conditions (especially wind) that may cause 

panels to be blown around and damaged.

 WARNING

Exhaust vents from dryers, water heaters and furnaces 

should be directed away from the outdoor unit. 

Prolonged exposure to exhaust gases and the chemicals 

contained within them may cause condensation to form 

on the steel cabinet and other metal components of the 

outdoor unit. This will diminish unit performance and 

longevity.

 IMPORTANT

When outdoor unit is connected to factory-approved indoor 

unit, outdoor unit contains system refrigerant charge for 

operation with matching indoor unit when connected by 15 

ft. of field-supplied tubing. For proper unit operation, check 

refrigerant charge using charging information located on 

control box cover.

Summary of Contents for GE NS23AMA

Page 1: ...ry When installing the unit use care to avoid sharp edges WARNING The Clean Air Act of 1990 bans the intentional venting of refrigerant CFCs HCFCs and HFCs as of July 1 1992 Approved methods of recove...

Page 2: ...te unit away from windows patios decks etc where unit operation sounds may disturb customer Leave some slack between structure and unit to absorb vibration Place a sound absorbing material such as Iso...

Page 3: ...CAUTION Elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage of unit Use snow stand in areas where prolonged freezing t...

Page 4: ...Piping Guidelines DO NOT LOCATE THE UNIT On brick concrete blocks or unstable surfaces Near clothes dryer exhaust vents Near sleeping area or near windows Under eaves where water snow or ice can fall...

Page 5: ...ssure in system is raised above 40 psig DO NOT REPLACE COMPRESSOR IMPORTANT The NS23AMA is a variable capacity cooling system utilizing variable speed compressor technology With the variable speed com...

Page 6: ...0 7 8 5 8 36 3 4 48 7 8 60 Table 4 Line Set Guidelines 51 to 150 Linear Feet in Length Tonnage Line SIze Total Linear Length ft 25 50 75 100 125 150 24 5 16 25 50 55 48 40 33 Max Elevation ft 3 8 25 5...

Page 7: ...NUT Figure 5 Remove Expansion Valve Uncased Coil Shown 1 On fully cased coils remove the coil access and plumbing panels 2 Remove any shipping clamps from the liquid line and distributor assembly 3 Di...

Page 8: ...ulator that can control the pressure down to 1 or 2 psig 6 9 to 13 8 kPa WARNING Refrigerant must be reclaimed in accordance with national and local codes WARNING 1 Set the recovery machine for liquid...

Page 9: ...ulb insulation is required if mounted external to the coil casing sensing bulb installation for bulb positioning STUB END TEFLON RING LIQUID LINE ASSEMBLY WITH BRASS NUT DISTRIBUTOR ASSEMBLY 3 Install...

Page 10: ...main round Do not crimp end of the line Remove service cap and core from both the vapor and liquid line service ports 1 2 LIQUID LINE SERVICE VALVE SERVICE PORT CORE SERVICE PORT CAP SERVICE PORT CORE...

Page 11: ...E VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WRAP SERVICE VALVES To help protect service valve seals during brazing wrap water saturated cloths around service valve bodies...

Page 12: ...side of the manifold gauge set in order to pressurize the line set and the indoor unit E After a few minutes open one of the service valve ports and verify that the refrigerant added to the system ea...

Page 13: ...r liquid refrigerant Open the manifold gauge valve 1 to 2 psig in order to release the vacuum in the line set and indoor unit G Perform the following Close manifold gauge valves Shut off HFC 410A cyli...

Page 14: ...oor unit Note that the published performance data is based upon the use of a two stage thermostat Refer to the NS23AMA field wiring diagram for a conventional 24VAC single stage thermostat NS23AMA Low...

Page 15: ...the floor It should not be installed on an outside wall or where it can be affected by sunlight or drafts THERMOSTAT 5 FEET 1 5M Figure 8 NOTE 24VAC Class II circuit connections are made in the contr...

Page 16: ...tion Type Less than 100 30m 18 Temperature Rating 35 C Minimum More than 100 30m 16 Table 7 Conventional 24VAC Thermostat Wiring Route High Voltage and Ground Wires Any excess high voltage field wirin...

Page 17: ...G DS W2 Y2 Y2 O D SENSOR OPTIONAL R2 FOR SINGLE STAGE OPERATION INSTALL A JUMPER BETWEEN Y1 TO Y2 ON THE OUTDOOR UNIT TERMINAL STRIP Figure 10 Conventional 24VAC Cooling Thermostat Wiring Single Stage...

Page 18: ...cooling blower demand must also be provided to initiate blower operation on the cooling speed on the indoor unit The compressor and outdoor fan motor will operate at 100 capacity To exit the charging...

Page 19: ...l will begin to ramp up the compressor capacity until maximum capacity is achieved The NS23AMA unit will cycle off once the thermostat demand is satisfied Start Up If unit is equipped with a crankcase...

Page 20: ...P ANGLE TYPE SERVICE VALVE FRONT SEATED CLOSED STEM CAP VALVE STEM SHOWN OPEN INSERT HEX WRENCH HERE ANGLE TYPE SERVICE VALVE BACK SEATED OPENED 1 Remove stem cap with an appropriately sized wrench 2...

Page 21: ...vel The system should be inspected and serviced before each cooling season by a licensed professional HVAC service technician or equivalent Homeowner Maintenance The following maintenance may be perfo...

Page 22: ...ill check the refrigerant charge per the charging sticker information on the outdoor unit 2 Verify that system total static pressure and airflow settings are within specific operating parameters 3 Ver...

Page 23: ...ENT PROTECTION SIZE REFER TO COMPRESSOR IN UNIT FOR ACTUAL TERMINAL ARRANGEMENT COMPRESSOR CONTACTOR RED L2 2 K1 1 RT13 WARNING ELECTRIC SHOCK HAZARD CAN CAUSE INJURY OR DEATH UNIT MUST BE GROUNDED IN...

Page 24: ..._____________ Actual Amps ______ Rated Volts _______ Actual Volts ________ Condenser Fan Full Load Amps _________ Actual Amps ______ Cooling Mode Suction Pressure ____________________ Liquid Pressure...

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