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INSTALLATION INSTRUCTIONS
NS18HH
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to
the potential for personal injury or death.
WARNING
Installation and servicing of air conditioning equipment
can be hazardous due to internal refrigerant pressure
and live electrical components. Only trained and qualified
service personnel should install or service this equipment.
Installation and service performed by unqualified persons
can result in property damage, personal injury, or death.
WARNING
ELECTRICAL SHOCK HAZARD!
Risk of electrical shock. Disconnect all
remote power supplies before installing or
servicing any portion of the system. Failure
to disconnect power supplies can result in
property damage, personal injury, or death.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
Contact GE Appliances at:
Homeowner: GEAppliances.com
HVAC Pro: GEAppliancesairandwater.com
or 866.814.3633
Split System USAC and USHP matches:
AHRIDirectory.org
31-5001053 Rev. 0
This manual must be left with the homeowner for future reference.
Variable Capacity Heat Pump
Table of Contents
Before You Begin .........................................................2
General ........................................................................4
General (cont)..............................................................4
Application ...................................................................8
General ........................................................................9
Installation .................................................................10
Operating Range .......................................................10
Refrigerant Piping ......................................................15
Electrical - Circuit Sizing and Wire Routing ...............29
..............................................................32
Shipping and Packing List .........................................32
Outdoor Unitary Control.............................................35
Unit Operation ...........................................................40
Start-Up .....................................................................40
Maintenance ..............................................................42
Homeowner Information ............................................43
Start-Up and Performance Checklist .........................45
WARNING
Sharp metal edges can cause injury. When installing the
unit, use care to avoid sharp edges.
GE Appliances
Appliance Park
Louisville, KY 40225
1
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Summary of Contents for GE NS18HH
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Page 1: Table Of Contents
Fines and/or incarceration may be unit, use care to avoid sharp edges. levied for noncompliance. GE Appliances Appliance Park Contact GE Appliances at: Louisville, KY 40225 Homeowner: GEAppliances.com HVAC Pro: GEAppliancesairandwater.com or 866.814.3633 Split System USAC and USHP matches: AHRIDirectory.org... -
Page 2: Before You Begin
READ AND SAVE THESE INSTRUCTIONS For more help, GEAppliances.com or GEAppliancesairandwater.com Before You Begin WARNING Read these instructions carefully and completely. For your safety, the information in this manual must • IMPORTANT – Save these instructions for local be followed to minimize the risk of fire, electric shock, inspector’s use. - Page 3 READ AND SAVE THESE INSTRUCTIONS WARNING WARNING • This appliance is not intended for use by RISK OF FIRE. Could cause injury or death. persons (including children) with reduced • Do not store or use combustible materials, gasoline physical, sensory or mental capabilities, or or other flammable vapors or liquids in the vicinity of lack of experience and knowledge, unless they this or any other appliance.
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Page 4: General
Requirements for Operation, Service and Installation of Appliances Using Flammable Refrigerants • Do not use means to accelerate the defrosting process General (cont) or to clean, other than those recommended by the manufacturer. • that precautions shall be taken to avoid excessive •... - Page 5 Requirements for Operation, Service and Installation of Appliances Using Flammable Refrigerants Qualification of Workers Information on Servicing (cont) Every working procedure that affects safety shall only be • Ensure that the area is in the open or that it is adequately carried out by competent persons.
- Page 6 Requirements for Operation, Service and Installation of Appliances Using Flammable Refrigerants Cabling Removal and Evacuation • Check that cabling will not be subject to wear, corrosion, • When breaking into the refrigerant circuit to make repairs excessive pressure, vibration, sharp edges or any –...
- Page 7 Requirements for Operation, Service and Installation of Appliances Using Flammable Refrigerants Decommissioning Recovery • Before carrying out this procedure, it is essential that • When removing refrigerant from a system, either for the technician is completely familiar with the equipment servicing or decommissioning, it is recommended good and all its detail.
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Page 8: Application
2) Warning: Assure that PARTIAL UNITS shall only Application be connected to an appliance suitable for the same refrigerant. These units are designed for use in residential and light 3) Assure the maximum operating pressure is considered commercial type buildings. Units should be installed with when connecting to any indoor units. -
Page 9: General
General Read this entire instruction manual, as well as the instructions supplied in separate equipment, before starting the installation. Observe and follow all warnings, cautions, instructional labels, and tags. Failure to comply with these instructions could result in an unsafe condition and/or premature component failure. -
Page 10: Installation
Installation Operating Range NOTE: In some cases, noise in the living area has been traced to gas pulsations from improper installation of • Cooling: 5°F - 125°F equipment. • Heating: -22°F – 75°F • Locate unit away from windows, patios, decks, etc. NOTES: where unit operation sounds may disturb customer. -
Page 11: Required Tools For Installation
Required Tools for Installation Included Accessories • 14/4 AWG stranded wire Outdoor Unit Included Accessories • 5/8”(16mm), 7/8”(22mm), 1”(25mm) or adjustable Name Appearance Quantity wrench • R-454B refrigerant* Rubber Damping • Adhesive tape • Conduit cable clamp ½”* Suction Extension •... -
Page 12: Elevate Unit
Outdoor Section Elevate Unit Zoning ordinances may govern the minimum distance the condensing unit can be installed from the property line. CAUTION Accumulation of water and ice in base pan may cause Building equipment damage. Structure Elevate unit per local climate and code requirements to Discharge Air provide clearance above estimated snowfall level and ensure adequate drainage of unit. -
Page 13: Unit Dimensions
Unit Dimensions Model 40-3/16 43-1/8 41-5/8 36-1/4 41-3/8 41-5/8 14-5/8 15-3/4 15-3/4 17-1/8 19-7/8 19-7/8 30-1/8 33-1/16 56-5/16 26-9/16 26-9/16 15-13/16 18-1/8 18-1/8 Weight (Ship) - lbs (kg) 176.4(80) 213.8(97) 306.4(139) Weight (Net) - lbs (kg) 134.5(61) 167.5(76) 257.9(117) 24K Units 36K Units 31-5001053 Rev. -
Page 14: Operating Ambient
Unit Dimensions (cont) 60K Units DO LOCATE THE UNIT: • With proper clearances on sides and top of unit • On a solid, level foundation or pad (unit must be level to within ± 1/4 in./ft. per compressor manufacturer • To minimize refrigerant line lengths DO NOT LOCATE THE UNIT: •... -
Page 15: Refrigerant Piping
Refrigerant Piping • Use only refrigerant grade copper tubes. • Table 2 shows the pipe installation restrictions for split systems • Ensure that vapor and liquid tube diameters are appropriate to capacity of unit. • Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends. - Page 16 Installation of Line Sets DO NOT fasten liquid or suction lines in direct contact with the floor or ceiling joist. Use an insulated or suspension type NOTE of hanger. Keep both lines separate, and always insulate the suction line. Liquid line runs (30 feet or more) in an attic will “Clean refrigerant”...
- Page 17 Table 2. Refrigerant Charge and Pipe Length Information Service Valve Connection Sizes Refrigerant Line Sizes Refrig. For Liquid System Model Charge Line Length System Max Pipe Vertical Suction Line Liquid Line Suction Line Liquid Line (oz)* (oz/ft) Charge (oz) Length (ft) Length (ft) Connection (in) Connection (in)
- Page 18 Conventional Line Set Installation: Pipe Bending 1. Use a tubing bender to change pipe direction. NOTE: Be extra careful not to damage, dent, or deform 2. If tubing is coiled, extend it by unwinding it from one end. the pipe while cutting. This will drastically reduce the 3.
- Page 19 Conventional Line Set Installation: Pipe Cutting / Pipe Flaring NOTE: Flaring step is only necessary if the piping extensions included with the heat pump cannot be used. Step 3: Flaring Step 3: Flaring (cont) Proper flaring is essential to achieve an airtight seal. 5.
- Page 20 Conventional Line Set Installation: Pipe Connection • Attach the flare nuts to the outdoor Service Valve, Torque the fittings according to the specifications shown in the torque chart below. NOTE: Forced fastening without careful centering may Service Valves damage the threads and cause a refrigerant leak. Corrugate Gas Pile Fastening torque Liquid Pipe...
- Page 21 Typical Existing Expansion Valve Removal Procedure Procedure STUB END TWO-PIECE PATCH PLATE LIQUID LINE DISTRIBUTOR TUBES (UNCASED COIL ONLY) ORIFICE EXPANSION HOUSING VALVE LIQUID LINE ORIFICE HOUSING DISTRIBUTOR TUBES ® TEFLON RING ® TEFLON RING FIXED ORIFICE ® TEFLON BRASS NUT SENSING RING LINE...
- Page 22 Connect Gauges and Equipment for Flushing Flushing Line Sets Procedure If the unit will be installed in an existing system that uses an indoor unit or line sets charged with R-22 refrigerant, CYLINDER CONTAINING installer must perform the following flushing procedure. GAUGE CLEAN R-454B TO BE MANIFOLD...
- Page 23 Refrigerant Piping - Install Indoor Expansion Valve This outdoor unit is designed for use in systems that include a heat pump expansion valve metering device at the indoor coil. See the Product Specifications for approved expansion valve kit match-ups and application information. The expansion valve unit can be installed internal or external to the indoor coil.
- Page 24 Refrigerant Piping - Brazing Procedures 1. CUT AND DEBUR 2. CAP AND CORE REMOVAL Cut ends of the refrigerant lines square (free from nicks Remove service cap and core from both the vapor and or dents) and debur the ends. The pipe must remain liquid line service ports.
- Page 25 Refrigerant Piping - Brazing Procedures (cont) 4. WRAP SERVICE VALVES To help protect service valve seals during brazing, wrap water-saturated cloths around service valve bodies and copper tube stubs. Use additional water-saturated cloths underneath the valve body to protect the base paint. 5.
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Page 26: Leak Test And Evacuation
Leak Test and Evacuation HIGH LEAK TEST MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN HFC - 454B 1. CONNECT GAUGE SET 2. TEST FOR LEAKS (cont) A - Connect the high pressure hose of an HFC-454B F - After leak testing, disconnect gauges from service manifold gauge set to the vapor valve service port. - Page 27 Leak Test and Evacuation (cont) EVACUATION HIGH WARNING Possible equipment damage. Avoid deep vacuum operation. Do not use compressors to evacuate a system. Extremely low vacuum can cause internal OUTDOOR MANIFOLD 1/4 SAE TEE WITH SWIVEL UNIT arcing and compressor failure. GAUGE SET COUPLER Damage...
- Page 28 Leak Test and Evacuation (cont) 4. EVACUATE THE SYSTEM A - Open both manifold valves and start the vacuum pump. B - Evacuate the line set and indoor unit until a slight vacuum is indicated on the micron gauge (approximately 23,000 microns or 29.01 inches of mercury).
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Page 29: Electrical - Circuit Sizing And Wire Routing
Electrical - Circuit Sizing and Wire Routing WARNING In the U.S.A., wiring must conform with current local codes Electrical Shock Hazard! and the current National Electric Code (NEC). In Canada, wiring must conform with current local codes and the current Can cause injury or death. - Page 30 Install Thermostat Size Circuit and Install Service Disconnect Switch Install room thermostat (ordered separately) on an inside Refer to the unit nameplate for minimum circuit ampacity, wall approximately in the center of the conditioned area and and maximum fuse or circuit breaker (HACR per NEC). 5 feet (1.5m) from the floor.
- Page 31 Route Control Wires Route High Voltage and Ground Wires Any excess high voltage field wiring should be trimmed Wire Run Length AWG# Insulation Type and secured away from any low voltage field wiring. To Less than 100’ (30m) Temperature Rating facilitate a conduit, a cutout is located on the bottom of 35°C Minimum More than 100’...
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Page 32: Shipping And Packing List
Certifications Shipping and Packing List • CSA C22.2 No. 60335-2-40:22; Fourth ed. Description Cat. No. • UL 60335-2-40; Fourth ed. OEM Low GWP Refrigerant 27A05 Detection System Mounting Hardware - #6-18 1” Phillips Drive pan head with dry wall anchor NOTE: Refer to the single and two stage RDS wiring diagrams for proper set up of the refrigerant detection system. - Page 33 Constant Torque/ RDS Sensor OPTIONAL Thermostat Variable Speed Air Handler N.C. CONDENSATE FLOAT SWITCH SENSOR #1 SENSOR #2 RDS Field Kit – 24 Volt Cat # (27A05) TSTAT INDOOR ZONING ALARM Defrost NO COM NC NO COM NC Tempering Thermostat / Outdoor Unit Terminal Block (BLACK) Indoor Unit Terminal Block (BLUE) O R C Y1 Y2 A Dual Fuel Thermostat is Required for Dual Fuel Applica on &...
- Page 34 RDS Wiring Diagrams for Two Stage Heat Pump with Two Stage Furnace/Air Handler Two Stage RDS Sensor OPTIONAL Thermostat Variable Speed Gas Furnace N.C. CONDENSATE FLOAT SWITCH SENSOR #1 SENSOR #2 RDS Field Kit – 24 Volt Cat # (27A05) TSTAT INDOOR ZONING...
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Page 35: Outdoor Unitary Control
Outdoor Unitary Control DIP and Terminals LP/HP: Low/High Pressure Switch Crankcase Tc: Condensing Temp.Sensor Base pan heater heater Ts: Condensing Suction Temp.Sensor Ta: Ambient Temp.Sensor Reactor CON1 Td: Compressor Discharge Temp.Sensor CON2 Te: Condensing Out Temp.Sensor PD: High Pressure Sensor 4WV: 4 Way Valve BW Y CN21... - Page 36 Display Board Charge Mode DIP Operation in the Heat Pump Heating Information labels concerning the outdoor control 2-segment Mode display and DIP operations are available on the unit control To test the supercooling degree in heating mode, an external panel cover. pressure gauge and thermometer need to be connected, and the pressure and measurement temperature are Alarms...
- Page 37 Dehum. 1 Dehum. 2 Heating Defrost Cooling Heating Default Heating + Default Default Cooling Defrost Default Heating + Strong Default Cooling Defrost Comfort Heating or Full-Load Default Cooling Airflow Rate <300 Scfm/Ton + Default Defrost Comfort Heating or Full-Load Default Cooling Airflow Rate <300 Scfm/Ton + Strong Defrost Dehum.
- Page 38 Indoor Matchup Subcool Additional Indoor Matchup Subcool Additional Charge Charge Heat (±3ºF) Cool (±1ºF) lbs/oz Heat (±3ºF) Cool (±1ºF) lbs/oz 2 Ton HP 3 Ton HP (cont) NAM18P1TA5* 1 lb 2 oz NCHC36AT5* 0 lb 11 oz NAM18V1TA5* 1 lb 2 oz NCHC36BT5* 0 lb 0 oz NAM24P1TA5*...
- Page 39 ºF Psig ºF Psig ºF Psig ºF Psig ºF Psig ºF Psig ºF Psig ºF Psig Table 10. HFC-454B Temperature (°F) Pressure (Psig) Operating and Temperature Pressures (All Builds) Minor variations in these pressures may be expected due to differences in installations. Significant differences could mean that the system is not properly charged or that a problem exists with some component in the system.
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Page 40: Unit Operation
Unit Operation Start-Up NS18H Unit Operation with a Conventional 24VAC 2-Stage Thermostat CAUTION When the NS18H unit is installed with a conventional If unit is equipped with a crankcase heater, it should 24VAC 2-stage thermostat, a Y1 first stage heating or be energized 24 hours before unit start-up to prevent cooling demand will initiate heating or cooling operation compressor damage as a result of slugging. -
Page 41: High Pressure Switch
Liquid and Suction Line Service Valves The liquid line and suction line service valves (see Figure IMPORTANT 24) and service ports are used for leak testing, evacuation, charging, and checking charge. Mineral oils are not compatible with R-454B. If oil must be added, it must be a polyolester oil. -
Page 42: Maintenance
To Open Liquid or Suction Line Service Valve: Maintenance Remove stem cap with an adjustable wrench. Use service wrench with a hex-head extension to back Regular Maintenance Requirements the stem out counterclockwise as far as it will go. Use Your system should be regularly inspected by a qualified a 3/16”... -
Page 43: Homeowner Information
Painted Surfaces In case of extended power outage... For maximum protection of the unit’s finish, a good grade If the outdoor temperature is below 50°F and power to your of automobile wax should be applied every year. In outdoor unit has been interrupted for one hour or longer, geographical areas where water has a high concentration observe the following when restoring power to your heat of minerals (calcium, iron, sulfur, etc.), it is recommended... - Page 44 Important System Information • Your system should never be operated without a clean • Return air and supply air registers should be free from IF YOUR SYSTEM DOES NOT WORK, BEFORE REQUESTING A SERVICE CALL: Ensure thermostat is set below (cooling) or above (heating) room temperature and that the system lever is in the “COOL”, “HEAT”...
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Page 45: Start-Up And Performance Checklist
Start-Up and Performance Checklist Customer: _____________________________________ Address: _______________________________________ Indoor Unit Model: _______________________________ Serial: _________________________________________ Outdoor Unit Model: ______________________________ Serial: _________________________________________ Notes: __________________________________________________________________________________________ Start-Up Checks Refrigerant Type: _____________________ Rated Load Amps: ____________________ Actual Amps: ______ Rated Volts: _______ Actual Volts: ________ Condenser Fan Full Load Amps: _________ Actual Amps: ______ Cooling Mode Suction Pressure: ____________________ Liquid Pressure: _________... - Page 46 If any parts should prove to be defective due to improper workmanship and/or material for a Warranty period of five (5) years from the date of installation, GE Appliances will place any defective From the date of the parts without charge for the part. Parts used for replacement may be new or refurbished parts, original purchase determined at Haier’s sole discretion, and provided to your licensed HVAC technician installer.
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Page 47: Legal Rights
• Indoor and outdoor ductless units are covered only when they are branded GE Appliances and are purchased and installed as a system along with a qualifying unit. (Third party coils are not covered). - Page 48 Louisville, KY 40225 ATTACHMENT 1 The “Product” is defined as GE brand Ducted Unitary Units. The “Product” contains 2 sub-categories of goods: “Indoor and Outdoor Products” and “Selected Installation Products,” which are further defined below: “Indoor and Outdoor Products” can further be identified by the following model number descriptions: NS*, NAM*, NC*, NF* & NP* For US Customers: This limited warranty is extended to the original purchaser for products purchased for home use within the USA.
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