Haier GE NS16AS User manual

31-5000749 Rev. 0 11-22 GEA
READ CAREFULLY.
KEEP THESE INSTRUCTIONS.
NS16AS
SINGLE STAGE SPLIT
SYSTEM AIR CONDITIONER UP
TO 16 SEER
Service
Manual

Page 2 31-5000749 Rev. 0
SERVICE MANUAL
NS16AS
Table of Contents
Technical Specications .............................................3
Installation ...................................................................7
Refrigeration Piping...................................................11
Electrical Wiring.........................................................18
Sequence of Operation..............................................21
Start-Up .....................................................................21
Maintenance..............................................................22
Wiring Diagram..........................................................24
Servicing Units Void of Charge..................................25
System Refrigerant....................................................25
Charge Labels ...........................................................28
Start-Up and Performance Checklist.........................31
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.
Electric shock hazard.
Can cause injury or death. Before attempting
to perform any service or maintenance, turn
the electrical power to unit OFF at disconnect
switch(es). Unit may have multiple power
supplies.
WARNING
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
CAUTION
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal injury
or loss of life. Installation and service must be performed
by a licensed professional HVAC installer (or equivalent),
service agency or the gas supplier.
WARNING

Page 3
31-5000749 Rev. 0
Technical Specications
MODEL NUMBER GUIDE
PHYSICAL AND ELECTRICAL DATA
UNIT DIMENSIONS (IN.)
Model Voltage/Hz/Phase Voltage
Range
Min.
Circuit
Amp.
Max. Over
Current
Device
(amps)
Compressor Outdoor Fan Motor
Rated
Load
(amps)
Locked
Rotor
(amps)
Full Load
(amps)
Rated
HP
Nom.
RPM
NS16A18SA4 208-230/60/1 197-253 11.9 20 9 48 0.7 1/10 1075
NS16A24SA4 208-230/60/1 197-253 16.1 25 10.9 59 1 1/6 825
NS16A30SA4 208-230/60/1 197-253 17 25 12.8 68 1 1/6 825
NS16A36SA4 208-230/60/1 197-253 18 30 13.6 79 1 1/6 825
NS16A42SA4 208-230/60/1 197-253 23.4 40 17.9 112 11/6 825
NS16A48SA4 208-230/60/1 197-253 24.2 40 18 117 1.7 1/4 825
NS16A60SA4 208-230/60/1 197-253 29.6 50 22.2 128 1.8 1/3 825
Model Dimensions (inch) Shipping Weight
(Lbs.)
A - Width B - Depth C - Height
NS16A18SA4 24.25 24.25 29 134
NS16A24SA4 28.25 28.25 29 154
NS16A30SA4 28.25 28.25 37 169
NS16A36SA4 28.25 28.25 29 181
NS16A42SA4 28.25 28.25 37 211
NS16A48SA4 28.25 28.25 37 218
NS16A60SA4 32.25 32.25 43 226
Note:
Weights listed are unit weights with packaging
Dimensions listed are unit sizes w/o packaging NOTE: Appearances may vary.
MAJOR / MINOR
REVISION
REFRIGERANT
4-R410A
VOLTAGE
A-208/230 1PH 60HZ
DESIGN VARIANT
S-1 STAGE
BRAND
N-GE
PRODUCT
S-SPLIT
SEER
APPLICATION
A-AIR CONDITIONER
H-HEAT PUMP
COOLING CAPACITY
(1000BTU/HR)
18, 24, 30, 36, 42, 48, 60
NNSSAA––XXXX1616 AA3636 SS44

Page 4 31-5000749 Rev. 0
ACCESSORIES
Model Sound Power1
Estimated Sound Pressure (dBA)2
Approximate Distance3
3.3 Feet
(1 Meter)
6.6 Feet
(2 Meters)
9.8 Feet
(3 Meters)
NS16A18SA4 73 65 59 55
NS16A24SA4 76 68 62 58
NS16A30SA4 76 68 62 58
NS16A36SA4 76 68 62 58
NS16A42SA4 76 68 62 58
NS16A48SA4 78 70 64 60
NS16A60SA4 80 72 66 62
1 Rated in accordance with AHRI standard 270 (2015). AHRI Standard 270 establishes a method of rating outdoor unitary equipment in terms of Sound Power.
2 Rated in accordance with AHRI standard 275 (2010). AHRI Standard 275 provides the calculations for estimating the A-Weighted Sound Pressure at a given distance from the equipment. That is a
more useful number because that is what humans will hear.
3 Based only on distance factor; other factors may change this value such as:
- Unit location (reective surfaces adjacent to the unit)
- Barrier shielding sources
- Sound path/elevation
- Outside noise sources
SOUND RATINGS
System Accessory Where Used Kit Number Purpose
Liquid Line solenoid All models 60M52 Prevents liquid migration to the compressor especially for high liquid riser
applications
Low ambient (cooling operation) All models 34M72 Enables cooling demand down to 30 °F. Will require freeze stat, CC heater
and TXV
Compressor Short Cycle protector All models 47J27 Delays compressor start 5-7 minutes to prevent short cycling
Hard Start 18 10J42 Scroll compressors usually do not require hard start; maybe needed for utility
brown-out or low voltage areas
Hard Start 24 thru 60 88M91
Crankcase Heater 18, 24, 30, 36 93M04
Prevents liquid migration to compressor in cold weatherCrankcase Heater 42 93M05
Crankcase Heater 48, 60 Factory Installed
Sound Cover 18, 24, 30, 36 14W00
Lowers compressor sound level
Sound Cover 42, 48, 60 14W01
Loss of Charge Kit All models 84M23 Protects the compressor if refrigerant charge is too low
Additional System Accessories (indoor section)
TXV Kit
18, 24, 30 H4TXV01
TXVs provide superior refrigerant ow control, comfort and e󰀩ciency
compared to pistons
36, 42, 48 H4TXV02
60 H4TXV03
Freeze stat All models 93G35 Protects the compressor at low suction pressure conditions

Page 5
31-5000749 Rev. 0
COOLING PERFORMANCE WITH DTC1
REFRIGERATION DATA
*Factory charged for 15 feet of line set
** Field supplied adapter required
Model Refrig. Charge
(oz.) * TXV
Refrigerant Line Size Outdoor Unit Connection Indoor Unit Connection
Suction Liquid Suction Liquid Suction Liquid
NS16A18SA4 73 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
NS16A24SA4 73 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
NS16A30SA4 88 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
NS16A36SA4 113 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
NS16A42SA4 140 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
NS16A48SA4 156 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
NS16A60SA4 192 H4TXV03 1 1/8 3/8 1-1/8 3/8 7/8** 3/8
Outdoor Model Indoor Model Capacity
(BTUH) EER SEER
NS16A18SA4 NCUC24B 18,000 12.20 14.00
NS16A24SA4 NCUC24B 24,000 12.20 14.25
NS16A30SA4 NCUC30B 28,400 12.20 14.00
NS16A36SA4 NCUC36B 34,000 12.20 14.25
NS16A42SA4 NCUC49C 40,000 12.20 14.00
NS16A48SA4 NCUC60C 46,000 12.20 14.00
NS16A60SA4 NCUC60C 58,000 11.70 14.00
1 DTC = Designated Tested Combination

Page 6 31-5000749 Rev. 0
COMPRESSOR
HARNESS
CONNECTION
LIQUID LINE SERVICE VALVESUCTION LINE SERVICE VALVE
OUTDOOR COIL
DISCHARGE LINE
HIGH PRESSURE SWITCH
COMPRESSOR
GROUND LUG
CONTACTOR
CONTROL DUAL RUN
CAPACITOR
CONTROL WIRE
LOOP
CUTOUT FOR HIGH
VOLTAGE CONDUIT
NOTE — Plumbing layout and compressor type may vary between model sizes.
CRANKCASE HEATER
THERMOSTAT
CRANKCASE HEATER
THERMAL SWITCH
Figure 1. Typical Parts Arranegment

Page 7
31-5000749 Rev. 0
Discharge Air
Mounting Slab
Ground Level
Building
Structure
Mounting slab must slope slightly away from
building, not to exceed 1/4” per foot.
Figure 2. Slab Mounting
Elevate Unit
Accumulation of water and ice in base pan may cause
equipment damage.
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 temperatures are encountered.
If conditions or local codes require the unit be attached to
pad or mounting frame, tie down bolts should be used and
fastened through knockouts provided in unit base pan.
Installation
These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities who
have jurisdiction before 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.
• 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.
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 eld-supplied tubing. For proper unit operation, check
refrigerant charge using charging information located on
control box cover.
Outdoor Section
Zoning ordinances may govern the minimum distance the
condensing unit can be installed from the property line.
Install on a Solid, Level Mounting Pad
The outdoor section is to be installed on a solid foundation.
This foundation should extend a minimum of 2” (inches)
beyond the sides of the outdoor section. To reduce the
possibility of noise transmission, the foundation slab
should NOT be in contact with or be an integral part of the
building foundation. See Figure 2.
If conditions or local codes require the unit be attached to
pad or mounting frame, tie down bolts should be used and
secured to unit base pan.

Page 8 31-5000749 Rev. 0
Clearance Requirements
When installing, allow su󰀩cient space for airow clearance,
wiring, refrigerant piping, and service. For proper airow,
quiet operation and maximum e󰀩ciency. Position so water,
snow, or ice from roof or eaves cannot fall directly on unit.
Refer to Table 1 for installation clearances.
Location Minimum Clearance
Service box 30”
Top of unit* 48”
Between units 24”
Against wall 6”
* Maximum so󰀩t overhang is 36”.
NOTE: At least one side should be unobstructed by a wall or
other barrier.
Table 1. Clearances
30” around
Control
Box
24”
6”*
Figure 3.
NOTE: See Table 1 for specic minimum clearance guidelines.
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
specications)
• To minimize refrigerant line lengths
DO NOT LOCATE THE UNIT:
• On brick, concrete blocks or unstable surfaces
• Near clothes dryer exhaust vents where debris
accumulates
• Near sleeping area or near windows
• Under eaves where water, snow or ice can fall directly
on the unit
• With clearance less than 2 ft. from a second unit
• With clearance less than 4 ft. on top of unit
Rooftop Installations
Install unit at a minimum of 6” above surface of the roof
to avoid ice buildup around the unit. Locate the unit
above a load bearing wall or area of the roof that can
adequately support the unit. Consult local codes for rooftop
applications.
If unit cannot be mounted away from prevailing winds, a
wind barrier should be constructed. Due to variation in
installation applications, size and locate barrier according
to the best judgment of the installer.
Torque Requirements
When servicing or repairing heating, ventilating, and
air conditioning components, ensure the fasteners are
appropriately tightened. Table 2 lists torque values for
fasteners.
To prevent stripping of the various caps used, the
appropriately sized wrench should be used and tted
snugly over the cap before tightening.
IMPORTANT
When servicing or repairing HVAC components, ensure
the fasteners are appropriately tightened. Table 2 provides
torque values for fasteners.
Only use Allen wrenches of su󰀩cient hardness (50Rc
- Rockwell Harness Scale minimum). Fully insert the
wrench into the valve stem recess.
Service valve stems are factory-torqued (from 9 ft-lbs
for small valves, to 25 ft-lbs for large valves) to prevent
refrigerant loss during shipping and handling. Using an
Allen wrench rated at less than 50Rc risks rounding
or breaking o󰀨 the wrench, or stripping the valve stem
recess.
IMPORTANT
Parts Recommended Torque
Service valve cap 8 ft.-lb. 11 NM
Sheet metal screws 16 in.-lb. 2 NM
Machine screws #10 28 in.-lb. 3 NM
Compressor bolts 90 in.-lb. 10 NM
Gauge port seal cap 8 ft.-lb. 11 NM
Table 2. Torque Requirements
Using Manifold Gauge Set
When checking the system charge, only use a manifold
gauge set that features low loss anti-blow back ttings.
Manifold gauge set used with HFC-410A refrigerant
systems must be capable of handling the higher system
operating pressures.

Page 9
31-5000749 Rev. 0
The gauges should be rated for use with pressures of 0 -
800 psig on the high side and a low side of 30” vacuum to
250 psig with dampened speed to 500 psi. Gauge hoses
must be rated for use at up to 800 psig of pressure with a
4000 psig burst rating.
Operating Service Valves
The liquid and vapor line service valves are used for
removing refrigerant, ushing, leak testing, evacuating,
checking charge and charging. Each valve is equipped
with a service port which has a factory-installed valve stem.
Liquid and Suction Line Service Valves
The liquid line and suction line service valves (see Figure
4) and service ports are used for leak testing, evacuation,
charging, and checking charge.
Each valve is equipped with a service port which has a
factory-installed Schrader valve. A service port cap protects
the Schrader valve from contamination and serves as the
primary leak seal.
To Access the Schrader Port:
1. Remove the service port cap with an adjustable
wrench.
2. Connect gauge to the service port.
3. When testing is completed, replace service port cap.
Tighten nger tight, then an additional 1/6 turn.
To Open Liquid or Suction Line Service Valve:
1. Remove stem cap with an adjustable wrench.
2. Use service wrench with a hex-head extension to back
the stem out counterclockwise as far as it will go. Use a
3/16” hex head extension for liquid line service valves
and a 5/16” extension for suction line service valves.
3. Replace the stem cap. Tighten nger tight, then tighten
an additional 1/6 turn.
To Close Liquid or Suction Line Service Valve:
1. Remove the stem cap with an adjustable wrench.
2. Use a service wrench with a hex-head extension to
turn the stem clockwise to seat the valve. Tighten
rmly.
3. Replace the stem cap. Tighten nger tight, then tighten
an additional 1/6 turn.
Suction Line (Ball Type) Service Valve
Suction line (ball type) service valves function the same
way as the other valves; the di󰀨erence is in the construction
(see Figure 5).
The ball valve is equipped with a service port with a factory-
installed Schrader valve. A service port cap protects the
Schrader valve from contamination and serves as the
primary seal.
Figure 4.
Figure 5.

Page 10 31-5000749 Rev. 0
ANCHORED HEAVY NYLON
WIRE TIE OR AUTOMOTIVE
MUFFLER‐TYPE HANGER
STRAP LIQUID LINE TO
VAPOR LINE
WALL
STUD
LIQUID LINE
NON-CORROSIVE
METAL SLEEVE
VAPOR LINE - WRAPPED
IN ARMAFLEX
AUTOMOTIVE
MUFFLER‐TYPE HANGER
REFRIGERANT LINE SET — TRANSITION
FROM VERTICAL TO HORIZONTAL
Line Set Isolation — The following illustrations are
examples of proper refrigerant line set isolation:
STRAPPING
MATERIAL (AROUND
VAPOR LINE ONLY)
TAPE OR
WIRE TIE
WIRE TIE (AROUND
VAPOR LINE ONLY)
FLOOR JOIST OR
ROOF RAFTER
TAPE OR
WIRE TIE
To hang line set from joist or rafter, use either metal strapping material
or anchored heavy nylon wire ties.
8 FEET (2.43 METERS)
STRAP THE VAPOR LINE TO THE JOIST
OR RAFTER AT 8 FEET (2.43 METERS)
INTERVALS THEN STRAP THE LIQUID
LINE TO THE VAPOR LINE.
FLOOR JOIST OR
ROOF RAFTER
REFRIGERANT LINE SET — INSTALLING
HORIZONTAL RUNS
NOTE — Similar installation practices should be used if line set is
to be installed on exterior of outside wall.
PVC
PIPE
FIBERGLASS
INSULATION
CAULK
OUTSIDE
WALL
VAPOR LINE WRAPPED
WITH ARMAFLEX
LIQUID
LINE
OUTSIDE WALL LIQUID LINE
VAPOR LINE
WOOD BLOCK
BETWEEN STUDS
STRAP
WOOD BLOCK
STRAP
SLEEVE
WIRE TIE
WIRE TIE
WIRE TIE
INSIDE WALL
REFRIGERANT LINE SET — INSTALLING
VERTICAL RUNS (NEW CONSTRUCTION SHOWN)
INSTALLATION
LINE SET
NOTE — Insulate liquid line when it is routed through areas where the
surrounding ambient temperature could become higher than the
temperature of the liquid line or when pressure drop is equal to or greater
than 20 psig.
NON-CORROSIVE
METAL SLEEVE
IMPORTANT —Refrigerant lines must not contact structure.
NON-CORROSIVE
METAL SLEEVE
8 FEET (2.43 METERS)
IMPORTANT —Refrigerant lines must not contact wall