User manual | Amana AVXC20 air conditioning Installation & service reference

CONDENSING UNIT

AVXC20 AIR CONDITIONING

INSTALLATION & SERVICE REFERENCE

Index

I

MPORTANT

S

AFETY

I

NSTRUCTIONS

............................................................. 1

S

HIPPING

I

NSPECTION

........................................................................... 2

C

ODES

& R

EGULATIONS

......................................................................... 2

F

EATURES

.......................................................................................... 2

I

NSTALLATION

C

LEARANCES

...................................................................... 2

R

OOFTOP

I

NSTALLATIONS

........................................................................ 3

S

AFE

R

EFRIGERANT

H

ANDLING

................................................................. 3

R

EFRIGERANT

L

INES

.............................................................................. 3

R

EFRIGERANT

L

INE

C

ONNECTIONS

.............................................................. 5

L

EAK

T

ESTING

(N

ITROGEN OR

N

ITROGEN

-T

RACED

) ......................................... 5

S

YSTEM

S

TART

-

UP

P

ROCEDURE

................................................................. 6

E

LECTRICAL

C

ONNECTIONS

...................................................................... 6

A

IR

C

ONDITIONER

A

DVANCED

F

EATURE

M

ENU

........................................... 22

W

IRING

D

IAGRAM

............................................................................. 24

C

APACITOR

...................................................................................... 27

T

ROUBLESHOOTING

............................................................................ 31

S

ETTING

T

HE

M

ODE

D

ISPLAY

................................................................. 36

7-S

EGMENT

D

ISPLAY

.......................................................................... 42

S

TART

-U

P

C

HECKLIST

.......................................................................... 46

I

MPORTANT

S

AFETY

I

NSTRUCTIONS

The following symbols and labels are used throughout this manual to indicate immediate or potential safety hazards. It is the owner’s and installer’s responsibility to read and comply with all safety information and instructions accompanying these symbols. Failure to heed safety information increases the risk of personal injury, property damage, and/or product damage.

WARNING

HIGH VOLTAGE !

D

ISCONNECT

ALL

POWER BEFORE SERVICING

.

M

ULTIPLE POWER SOURCES MAY BE PRESENT

. F

AILURE

TO DO SO MAY CAUSE PROPERTY DAMAGE

,

PERSONAL

INJURY OR DEATH

.

O

NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL

,

ADJUST

,

SERVICE OR

REPAIR

(

HEREINAFTER

, “

SERVICE

”)

THE EQUIPMENT SPECIFIED IN THIS

MANUAL SHOULD SERVICE THE EQUIPMENT

. T

HE MANUFACTURER WILL NOT

BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM

IMPROPER SERVICE OR SERVICE PROCEDURES

. I

F YOU SERVICE THIS UNIT

,

YOU

ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY

RESULT

. I

N ADDITION

,

IN JURISDICTIONS THAT REQUIRE ONE OR MORE

LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL

,

ONLY

LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT

. I

MPROPER

INSTALLATION

,

ADJUSTMENT

,

SERVICING OR REPAIR OF THE EQUIPMENT

SPECIFIED IN THIS MANUAL

,

OR ATTEMPTING TO INSTALL

,

ADJUST

,

SERVICE OR

REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER

TRAINING MAY RESULT IN PRODUCT DAMAGE

,

PROPERTY DAMAGE

,

PERSONAL

INJURY OR DEATH

.

Agency.

® and the mark are registered trademarks owned by the U.S. Environmental Protection products are third-party certified by an EPA-recognized Certification Body. Products that earn the prevent greenhouse gas emissions by meeting strict energy efficiency guidelines set by the U.S.

Environmental Protection Agency.

IOA-4011C

5/2016

Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps must be matched with appropriate coil components to meet details or visit www.energystar.gov.

criteria. Ask your contractor for

“IMPORTANT – This product has been designed and manufactured to meet ENERGY STAR criteria for energy efficiency when matched with appropriate coil components. However, proper refrigerant charge and proper air flow are critical to achieve rated capacity and efficiency. Installation of this product should follow the manufacturer’s refrigerant charging and air flow instructions. Failure to confirm proper charge and airflow may

reduce energy efficiency and shorten equipment life.”

All informaton contained herein is subject to change without notice.

© 2015-2016 Goodman Manufacturing Company, L.P.

5151 San Felipe St., Suite 500, Houston, TX 77056

www.amana-hac.com

i s a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.

CAUTION

T

HE UNIT HAS ITS OWN

P

UMP

-

DOWN MODE

. U

SE THE

P

UMP

-

DOWN

MODE WHILE VACUUMING THE UNIT

. V

ACUUMING TOO LOW CAN

CAUSE INTERNAL ELECTRICAL ARCING

,

RESULTING IN A DAMAGED OR

FAILED COMPRESSOR

.

S

HIPPING

I

NSPECTION

Always keep the unit upright; laying the unit on its side or top may cause equipment damage. Shipping damage, and subsequent investigation is the responsibility of the carrier. Verify the model number, specifications, electrical characteristics, and accessories are correct prior to installation. The distributor or manufacturer will not accept claims from dealers for transportation damage or installation of incorrectly shipped units.

C

ODES

& R

EGULATIONS

This product is designed and manufactured to comply with national codes. Installation in accordance with such codes and/or prevailing local codes/regulations is the responsibility of the installer. The manufacturer assumes no responsibility for equipment installed in violation of any codes or regulations. Rated performance is achieved after 72 hours of operation. Rated performance is delivered at the specified airflow. See outdoor unit specification sheet for split system models or product specification sheet for packaged and light commercial models. Specification sheets can be found at www.amana-hac.com for Amana ® brand products. Within the website, please select the residential or commercial products menu and then select the submenu for the type of product to be installed, such as air conditioners or heat pumps, to access a list of product pages that each contain links to that model’s specification sheet.

The United States Environmental Protection Agency (EPA) has issued various regulations regarding the introduction and disposal of refrigerants. Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines.

Should you have any questions please contact the local office of the EPA.

If replacing a condensing unit or air handler, the system must be manufacturer approved and Air Conditioning, Heating and Refrigeration Institute (AHRI) matched.

NOTE: The installation of an inverter condensing unit with unmatched system units will not allow for proper operation.

NOTICE

I

NVERTER

A/C

MODELS CAN ONLY BE MATCHED WITH AN

AV**PVC

AIR HANDLER

, TXV-V**

EXPANSION VALVE

KIT. D

AMAGE RESULTING

FROM OPERATION WITH ANY OTHER COMBINATION IS NOT COVERED BY

OUR WARRANTIES

.

Damage resulting from operation of the unit in a structure that is not complete (either as part of new construction or renovation) is not covered by our warranties.

F

EATURES

This air conditioner is part of a system that uses inverter technology to more efficiently remove heat and achieve the target cooling setting. System may ONLY be installed using a ComfortNet™ thermostat with model number CTK04 as part of the digital communicating system. The ComfortNet system reduces the number of required thermostat wires, provides automatic airflow configuration, additional setup features and enhanced active diagnostics. Due to components using inverter technology, the air conditioner will not function properly if used with a CTK03, 02 or 01

ComfortNet thermostat.

NOTICE

N

OT APPROVED FOR USE WITH A

CTK01, CTK02

OR

CTK03.

I

NSTALLATION

C

LEARANCES

Special consideration must be given to location of the condensing unit(s) in regard to structures, obstructions, other units, and any/ all other factors that may interfere with air circulation. Where possible, the top of the unit should be completely unobstructed; however, if vertical conditions require placement beneath an obstruction there should be a minimum of 60 inches between the

top of the unit and the obstruction(s). The specified dimensions meet requirements for air circulation only. Consult all appropriate regulatory codes prior to determining final clearances.

Another important consideration in selecting a location for the unit(s) is the angle to obstructions. Either side adjacent the valves can be placed toward the structure provided the side away from the structure maintains minimum service clearance. Corner installations are strongly discouraged.

A

A

NOT

RECOMMENDED

B

AA

C

AA

AA

B

AA

C

AA

AA

B

B

AA

OK!

OK!

OK!

OK !

C C

Outdoor inverter units are approved for operation above 0°F in cooling mode with no additional kit necessary.

Minimum Airflow Clearance

Model Type

Residential

Light Commercial

A

10"

12"

B

10"

12"

C

18"

18"

AA

20"

24"

2

This unit can be located at ground floor level or on flat roofs. At ground floor level, the unit must be on a solid, level foundation that will not shift or settle. To reduce the possibility of sound transmission, the foundation slab should not be in contact with or be an integral part of the building foundation. Care should be taken to ensure the unit is installed away from noise sensitive locations such as bedrooms, windows and outdoor living areas.

Ensure the foundation is sufficient to support the unit. A concrete slab raised above ground level provides a suitable base.

R

OOFTOP

I

NSTALLATIONS

If it is necessary to install this unit on a roof structure, ensure the roof structure can support the weight and that proper consideration is given to the weather-tight integrity of the roof. Since the unit can vibrate during operation, sound vibration transmission should be considered when installing the unit. Vibration absorbing pads or springs can be installed between the condensing unit legs or frame and the roof mounting assembly to reduce noise vibration.

E

LECTRICAL

N

OISE

The unit should be well grounded so that potential effects of electrical noise from the inverter to surrounding equipment can be minimized.

When selecting an installation location, keep sufficient distance from the air conditioner unit and wiring to radios, personal computers, stereos, etc., as shown in the following figure.

WARNING

T

O AVOID POSSIBLE EXPLOSION

,

USE ONLY RETURNABLE

(

NOT

DISPOSABLE

)

SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM

A SYSTEM

.

• E

NSURE THE CYLINDER IS FREE OF DAMAGE WHICH COULD LEAD TO A

LEAK OR EXPLOSION

.

• E

NSURE THE HYDROSTATIC TEST DATE DOES NOT EXCEED

5

YEARS

.

• E

NSURE THE PRESSURE RATING MEETS OR EXCEEDS

400

PSIG

.

W

HEN IN DOUBT

,

DO NOT USE CYLINDER

.

WARNING

R

EFRIGERANTS ARE HEAVIER THAN AIR

. T

HEY CAN

“

PUSH OUT

”

THE

OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPACE

. T

O AVOID

POSSIBLE DIFFICULTY IN BREATHING OR DEATH

:

• N

EVER PURGE REFRIGERANT INTO AN ENCLOSED ROOM OR SPACE

. B

Y

LAW

,

ALL REFRIGERANTS MUST BE RECLAIMED

.

• I

F AN INDOOR LEAK IS SUSPECTED

,

THOROUGHLY VENTILATE THE AREA

BEFORE BEGINNING WORK

.

• L

IQUID REFRIGERANT CAN BE VERY COLD

. T

O AVOID POSSIBLE FROST BITE

OR BLINDNESS

,

AVOID CONTACT AND WEAR GLOVES AND GOGGLES

. I

F

LIQUID REFRIGERANT DOES CONTACT YOUR SKIN OR EYES

,

SEEK MEDICAL

HELP IMMEDIATELY

.

• A

LWAYS FOLLOW

EPA

REGULATIONS

. N

EVER BURN REFRIGERANT

,

AS

P

OISONOUS GAS WILL BE PRODUCED

.

To Indoor Unit

Radio, TV

Circuit

Breaker

WARNING

T


:

•N

EVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLINDER

. I

F YOU

MUST HEAT A CYLINDER FOR FASTER CHARGING

,

PARTIALLY IMMERSE

IT IN WARM WATER

.

•N

EVER FILL A CYLINDER MORE THAN

80%

FULL OF LIQUID

REFRIGERANT

.

•N

EVER ADD ANYTHING OTHER THAN

R-410A

TO A RETURNABLE

R-410A

CYLINDER

. T

HE SERVICE EQUIPMENT USED MUST BE LISTED

OR CERTIFIED FOR THE TYPE OF REFRIGERANT USE

.

•S

TORE CYLINDERS IN A COOL

,

DRY PLACE

. N

EVER USE A CYLINDER

AS A PLATFORM OR A ROLLER

.

60” or m ore

(In.)

R

EFRIGERANT

L

INES

Placement to Minimize Electronic Noise

S

AFE

R

EFRIGERANT

H

ANDLING

While these items will not cover every conceivable situation, they should serve as a useful guide.

WARNING

T

O AVOID POSSIBLE INJURY

,

EXPLOSION OR DEATH

,

PRACTICE SAFE

HANDLING OF REFRIGERANTS

.

CAUTION

T

HE COMPRESSOR

PVE

OIL FOR

R-410A

UNITS IS EXTREMELY

SUSCEPTIBLE TO MOISTURE ABSORPTION AND COULD CAUSE

COMPRESSOR FAILURE

. D

O NOT LEAVE SYSTEM OPEN TO ATMOSPHERE

ANY LONGER THAN NECESSARY FOR INSTALLATION

.

3

Use only refrigerant grade (dehydrated and sealed) copper tubing 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. The liquid line must be insulated if more than 50 ft. of liquid line will pass through an area that may reach temperatures of 30°F or higher than outdoor ambient. Never attach a liquid line to any uninsulated potion of the suction line.

Do NOT let refrigerant lines come in direct contact with plumbing, 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.

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 and connections from damage and contamination.

Condenser BELOW Evaporator

RECOMMENDED

INTERCONNECTING TUBING (Ft)

Line Set Length

0 - 250' Equivalent

Heat Pump

Unit

Line Type

& Line Diameter (In. OD)

(Tons)

4

5

2

3

Suct

3/4

7/8

1 1/8

1 1/8

Liq

3/8

3/8

3/8

3/8

Oil Trap Construction

LONG RADIUS

STREET ELL

SHORT RADIUS

STREET ELL

STREET

ELL

Maximum line set equivalent length of 250 ft*.

The maximum line set actual length is 200 ft.

*Accounts for pressure losses of any elbows, bends, etc.

Condenser ABOVE Evaporator

Maximum line set equivalent length of 250 ft.*

The maximum line set actual length is 200 ft.

Maximum vertical separation of 200 ft.

*Accounts for pressure losses of any elbows, bends, etc.

4

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, the indoor coil and metering device must be replaced. Only AV**PVC air handlers or TXV** expansion valves are compatible and have been manufacturer approved for use with these models. See unit specifications or AHRI for an approved system match.

L

EAK

T

ESTING

(N

ITROGEN OR

N

ITROGEN

-T

RACED

)

WARNING

T

O AVOID THE RISK OF FIRE OR EXPLOSION

,

NEVER USE OXYGEN

,

HIGH

PRESSURE AIR OR FLAMMABLE GASES FOR LEAK TESTING OF A

REFRIGERATION SYSTEM

.

R

EFRIGERANT

L

INE

C

ONNECTIONS

IMPORTANT

To avoid overheating the service valve, TXV, or filter drier while brazing, wrap the component with a wet rag, or use a thermal heat trap compound. Be sure to follow the manufacturer’s instruction when using the heat trap compound. Note: Remove Schrader valves from service valves before brazing tubes to the valves. Use a brazing alloy of 2% minimum silver content. Do not use flux.

Torch heat required to braze tubes of various sizes is proportional to the size of the tube. Tubes of smaller size require less heat to bring the tube to brazing temperature before adding brazing alloy. Applying too much heat to any tube can melt the tube. Service personnel must use the appropriate heat level for the size of the tube being brazed.

NOTE: The use of a heat shield when brazing is recommended to avoid burning the serial plate or the finish on the unit.

1. The ends of the refrigerant lines must be cut square, deburred, cleaned, and be round and free from nicks or dents. Any other condition increases the chance of a refrigerant leak.

2. “Sweep” the refrigerant line with nitrogen or inert gas during brazing to prevent the formation of copper-oxide inside the refrigerant lines. The FVC oils used in R-410A applications will clean any copper-oxide present from the inside of the refrigerant lines and spread it throughout the system. This may cause a blockage or failure of the metering device.

3. After brazing, quench the joints with water or a wet cloth to prevent overheating of the service valve.

4. A bi-flow filter drier is shipped with the unit as a separate component and must be brazed on by the installer on-site.

Ensure the bi-flow filter drier paint finish is intact after brazing. If the paint of the steel filter drier has been burned or chipped, repaint or treat with a rust preventative.

The recommended location of the filter drier is before the expansion device at the indoor unit.

NOTE: Be careful not to kink or dent refrigerant lines. Kinked or dented lines will cause poor performance or compressor damage.

Do NOT make final refrigerant line connection until plugs are removed from refrigerant tubing.

WARNING

T


,

THE LINE FROM THE NITROGEN

CYLINDER MUST INCLUDE A PRESSURE REGULATOR AND A PRESSURE

RELIEF VALVE

. T

HE PRESSURE RELIEF VALVE MUST BE SET TO OPEN AT

NO MORE THAN

150

PSIG

.

To locate leaks, pressure test the system using dry nitrogen or leak detector fluid per Amana’s recommendation. If you wish to use a leak detector, charge the system to 10 psi using the appropriate refrigerant then use nitrogen to finish charging the system to working pressure then apply the detector to suspect areas. If leaks are found, repair them. After repair, repeat the pressure test. If no leaks exist, proceed to System Start-up Procedure.

S

YSTEM

S

TART

-

UP

P

ROCEDURE

GENERAL NOTES:

Adequate refrigerant charge for the matching evaporator coil and

15 feet of line set is supplied with the condensing unit. If line set exceeds 15 feet in length, refrigerant should be added at 0.6 ounces per foot of liquid line.

NOTICE

V

IOLATION OF

EPA

REGULATIONS MAY RESULT IN FINES OR OTHER

PENALTIES

.

NOTICE

A

LL UNITS SHOULD HAVE A HIGH VOLTAGE POWER SUPPLY CONNECTED

2

HOURS PRIOR TO STARTUP

.

WARNING

REFRIGERANT UNDER PRESSURE!

• D

O NOT OVERCHARGE SYSTEM WITH REFRIGERANT

.

• D

O NOT OPERATE UNIT IN A VACUUM OR AT NEGATIVE PRESSURE

.

F

AILURE TO FOLLOW PROPER PROCEDURES MAY CAUSE PROPERTY

DAMAGE

,

PERSONAL INJURY OR DEATH

.

CAUTION

O

PERATING THE COMPRESSOR WITH THE GAS VALVE CLOSED WILL

CAUSE SERIOUS COMPRESSOR DAMAGE

-

SUCH DAMAGE IS NOT

COVERED BY OUR WARRANTIES

.

CAUTION

U

SE REFRIGERANT CERTIFIED TO

AHRI

STANDARDS

. U

SED REFRIGERANT

MAY CAUSE COMPRESSOR DAMAGE

,

AND IS NOT COVERED UNDER THE

WARRANTY

. M

OST PORTABLE MACHINES CANNOT CLEAN USED

REFRIGERANT TO MEET

AHRI

STANDARDS

.

5

2500

2000

1500

1000

500

5000

4500

4000

3500

3000

S

TART

-

UP

P

ROCEDURE

D

ETAIL

Condensing unit liquid and suction valves are closed to contain the charge within the unit. The unit is shipped with the valve stems closed and caps installed. Do not open valves until the

indoor coil and line set is evacuated.

CAUTION

P

ROLONGED OPERATION AT SUCTION PRESSURES LESS THAN

20

PSIG

FOR MORE THAN

5

SECONDS WILL RESULT IN OVERHEATING OF THE

SCROLLS AND PERMANENT DAMAGE TO THE SCROLL TIPS

,

DRIVE

BEARINGS AND INTERNAL SEAL

.

E

LECTRICAL

C

ONNECTIONS

WARNING

HIGH VOLTAGE!

D

ISCONNECT

ALL

POWER BEFORE SERVICING

.

M

ULTIPLE POWER SOURCES MAY BE PRESENT

. F

AILURE

TO DO SO MAY CAUSE PROPERTY DAMAGE

,

PERSONAL

INJURY OR DEATH DUE TO ELECTRIC SHOCK

. W

IRING

MUST CONFORM WITH

NEC

OR

CEC

AND ALL LOCAL

CODES

. U

NDERSIZED WIRES COULD CAUSE POOR

EQUIPMENT PERFORMANCE

,

EQUIPMENT DAMAGE OR

FIRE

.

1. Connect the vacuum pump with 250 micron capability to the service valves.

2. Evacuate the system to 250 microns or less using suction

and liquid service valves. Using both valves is necessary as some compressors create a mechanical seal separating the sides of the system.

3. Close pump valve and hold vacuum for 10 minutes.

Typically pressure will rise during this period.

• If the pressure rises to 1000 microns or less and remains steady the system is considered leak-free; proceed to start-up.

• If pressure rises above 1000 microns but holds steady below 2000 microns, moisture and/or noncondensibles may be present or the system may have a small leak.

Return to step 2: If the same result is encountered check for leaks as previously indicated and repair as necessary then repeat evacuation.

• If pressure rises above 2000 microns, a leak is present.

Check for leaks as previously indicated and repair as necessary then repeat evacuation.

LEAK(S)

PRESENT

CONDENSIBLES OR SMALL

LEAK PRESENT

NO LEAKS

NO CONDENSIBLES

0 1 2 3 4 5 6 7 8 9

10

MINUTES

WARNING

T

O AVOID THE RISK OF FIRE OR EQUIPMENT DAMAGE

,

USE COPPER

CONDUCTORS

.

CAUTION

GROUNDING REQUIRED!

A

LWAYS INSPECT AND USE PROPER SERVICE TOOLS

. L

ACK OF

INSPECTION OR IMPROPER TOOLS MAY CAUSE EQUIPMENT DAMAGE OR

PERSONAL INJURY

. A

LL DISCONNECTED GROUNDING DEVICES

MUST

BE

RECONNECTED BEFORE INSTALLING OR SERVICING

. M

ULTIPLE

COMPONENTS OF THIS UNIT MAY CONDUCT ELECTRICAL CURRENT

;

THESE ARE GROUNDED

. I

F SERVICING THE UNIT

,

ANY DISCONNECTION

OF GROUNDING WIRES

,

SCREWS

,

STRAPS

,

CLIPS

,

NUTS OR WASHERS

USED TO COMPLETE THE GROUND

MUST

BE RETURNED TO THEIR

ORIGINAL POSITION AND PROPERLY FASTENED

.

The condensing unit rating plate lists pertinent electrical data necessary for proper electrical service and overcurrent protection. Wires should be sized to limit voltage drop to 2% (max.) from the main breaker or fuse panel to the condensing unit. Consult the NEC, CEC, and all local codes to determine the correct wire gauge and length.

Local codes often require a disconnect switch located near the unit; do not install the switch on the unit. Refer to the installation instructions supplied with the indoor furnace/air handler for specific wiring connections and indoor unit configuration.

O

VERCURRENT

P

ROTECTION

The inverter control system software provides sufficient time delay to protect from overcurrent conditions and permit the compressor and fan motors to adjust their rotational speed.

H

IGH

V

OLTAGE

C

ONNECTIONS

Route power supply and ground wires through the high voltage port and terminate in accordance with the wiring diagram provided inside the control panel cover.

L

OW

V

OLTAGE

C

ONNECTIONS

The unit is designed to work as part of a fully communicating

HVAC system, utilizing a ComfortNet™ CTK04 thermostat,

ComfortNet compatible indoor unit, and up to four wires. Route control wires through the low voltage port and terminate in accordance with the wiring diagram provided inside the control panel cover.

6

NOTICE

T

OTAL

R

EFRIGERANT

=

F

ACTORY

C

HARGE

+ (0.6

OZ

./

FT

. * A

DDITIONAL

F

EET

OF

A

CTUAL

L

INE

S

ET

).

Voltage Ports

NOTE: The communicating thermostat is able to search and identify the indoor and outdoor units when power is applied to the system. Refer to the communicating thermostat’s installation instruction manual for more information.

Connect low voltage communication wires (1, 2) to low voltage pigtail provided.

T

HERMOSTAT

W

IRING

NOTE:

A removable plug connector is provided with the control to make thermostat wire connections. This plug may be removed, wire connections made to the plug, and replaced. It is STRONGLY recommended that you do not connect multiple wires into a single terminal without mechanically twisting the tips together with a set of pliers. Failure to do so may result in intermittent operation.

Typical 18 AWG thermostat wire may be used to wire the system components. However, communications reliability may be improved by using a high quality, shielded, twisted pair cable for the data transmission lines. In either case, 250 feet is the maximum length of wire between indoor unit and outdoor unit, or between indoor unit and thermostat.

T

WO

-W

IRE

O

UTDOOR AND

F

OUR

-W

IRE

I

NDOOR

W

IRING

Low voltage wiring consists of two wires between the indoor unit and outdoor unit and four wires between the indoor unit and thermostat. The required wires are data lines 1 and 2, “R” (24 VAC hot) and “C” (24 VAC common).

1 2 R C

CTK04

Thermostat

1 2 R C

Compatible

Air Handler/Furnace

Integrated Control Module

15 (Factory Charge)

20

25

90

95

100

105

110

115

120

125

130

135

140

30

35

40

45

50

55

60

65

70

75

80

85

170

175

180

185

190

195

200

145

150

155

160

165

152

155

158

200

203

206

209

212

182

185

188

191

194

197

215

218

221

224

227

230

161

164

167

170

173

176

179

248

251

254

257

260

263

233

236

239

242

245

The following table shows refrigerant amounts for every 5 feet of line.

Unit Tonnage

Actual Line Set

Length (ft.)

2-Ton 3-Ton 4-Ton

Refrigerant (oz.)

154

157

160

202

205

208

211

214

184

187

190

193

196

199

217

220

223

226

229

232

163

166

169

172

175

178

181

250

253

256

259

262

265

235

238

241

244

247

246

249

252

294

297

300

303

306

276

279

282

285

288

291

309

312

315

318

321

324

255

258

261

264

267

270

273

342

345

348

351

354

357

327

330

333

336

339

5-Ton

246

249

252

294

297

300

303

306

276

279

282

285

288

291

309

312

315

318

321

324

255

258

261

264

267

270

273

342

345

348

351

354

357

327

330

333

336

339

S

TEP

2. C

ONNECT

C

ONDENSING

U

NIT TO

S

YSTEM

1 2 R C

Compatible AC/HP

Integrated Control Module

System Wiring

S

TEP

1. C

ALCULATE

R

EFRIGERANT

C

HARGE

B

ASED ON

L

INE

S

ET

L

ENGTH

The condenser unit is shipped with a predetermined factory charge level as shown below. For longer line sets greater than 15 feet, add 0.6 ounces of refrigerant per foot.

OPEN THE SUCTION VALVE FIRST! I

F THE LIQUID SERVICE VALVE

IS OPENED FIRST

,

OIL FROM THE COMPRESSOR MAY BE DRAWN INTO

THE INDOOR COIL

TXV

RESTRICTING REFRIGERANT FLOW AND

AFFECTING OPERATION OF THE SYSTEM

.

7

CAUTION

POSSIBLE REFRIGERANT LEAK!

T

O AVOID A POSSIBLE REFRIGERANT LEAK

,

OPEN THE SERVICE VALVES

UNTIL THE TOP OF THE STEM IS

1/8”

FROM THE RETAINER

.

CAUTION

E

NSURE VALVES ARE OPEN AND ADDITIONAL CHARGE IS ADDED PER

CHART BEFORE APPLYING POWER

.

When opening valves with retainers, open each valve only until the top of the stem is 1/8” from the retainer. To avoid loss of refrigerant, DO NOT apply pressure to the retainer. When opening valves without a retainer, remove service valve cap and insert a hex wrench into the valve stem and back out the stem by turning the hex wrench counterclockwise. Open the valve until it contacts the rolled lip of the valve body.

NOTE:

Units may utilize ball valves or front seating valves. These are not back-seating valves. It is not necessary to force the stem tightly against the rolled lip.

After the refrigerant charge has bled into the system, open the liquid service valve. The service valve cap is the secondary seal for the valves and must be properly tightened to prevent leaks.

Make sure cap is clean and apply refrigerant oil to threads and sealing surface on inside of cap. Tighten cap finger-tight and then tighten additional 1/6 of a turn to properly seat the sealing surfaces.

Do not introduce liquid refrigerant from the cylinder into the crankcase of the compressor as this may damage the compressor.

Break vacuum by fully opening liquid and suction base valve.

ATTENTION INSTALLER - IMPORTANT NOTICE!

Please read carefully before installing this unit.

•

For AVXC20, do not install the 24 Volt Transformer that is included with the CTK04 Thermostat in the Condensing

Unit; it is not needed.

• Do not attach any wires to the R & C Terminals on the Condensing Unit, as they are not needed for inverter unit setup.

• Data line terminals #1 and #2 are polarity sensitive. Only the data lines, 1 and 2, are required between the indoor

and outdoor units.

• Data line terminal #1 from outdoor unit must connect to terminal #1 on indoor unit and data line terminal #2 from outdoor unit must connect to terminal #2 on indoor unit. Verify wires are not reversed.

• It is strongly recommended to use wire nuts at the indoor unit when connecting multiple data lines or low voltage wires together. It is not recommended to use the terminal block to connect two or more wires.

• Calculate the Liquid Line Set length and weigh in 0.6 ounces per foot of R410A refrigerant for any length over 15 feet.

Or

• Charge by Sub-cooling.

Sub-cooling should be between 7° and 9°F. Allow 10 minutes of running in Charge Mode between each amount of refrigerant added.

Dipswitch Default Factory Settings

Switch #

OD DS1

OD DS2

1

2

1

2

Setting

ON CT Communication Enabled

ON

ON

ON

Purpose

CT Communication Enabled

Cooling Emergency Mode for Future Use *

Cooling Emergency Mode for Future Use *

* OD DS2 switch 1 and 2 both must be turned on during normal operation mode

8

S

TEP

3. S

YSTEM

S

TART

-

UP

T

EST

NOTICE

O

N INITIAL POWER START

-

UP

,

THE OUTDOOR UNIT WILL DISPLAY CODE

E11,

SIGNALING THAT INITIAL

SYSTEM

TEST MUST BE RUN

. F

OLLOW

THE

C

OMFORT

N

ET

™

SETUP SCREEN TO ENTER APPLICATION

-

UNIQUE

INFORMATION

. S

EE

C

OMFORT

N

ET THERMOSTAT MANUAL FOR

DETAILED INFORMATION

.

A system test is now required to check the equipment settings and functionality. Once selected, it checks the equipment for approximately 5 - 15 minutes. System test may exceed 15 minutes if there is an error. Refer to the Troubleshooting section.

Before starting the SYSTEM TEST, turn off the electric heater or gas furnace.

1. Ensure the thermostat is installed.

2. Apply power to outdoor and indoor units.

3. Start-up.

After the application information is entered, the initial system test must be run.

NOTICE

F

OR INVERTER

A/C

SYSTEM USING

C

OMFORT

N

ET

,

DO

NOT

INSTALL A

TRANSFORMER

.

The HOME screen will be displayed showing information similar to one of the adjacent screens.

Select MENU.

NOTE: Either screen may be displayed.

SYSTEM TEST must be run for all installations.

System will not operate without a completed initial

SYSTEM TEST.

NOTE: Ensure the thermosat is in OFF mode.

9

4. From the MENU screen, scroll down and select

COMFORTNET™ USER MENU.

5. Enter Installer password. (The password is the Date

Code located on the thermostat and is available by entering the EQUIPMENT STATUS menu and scrolling to the bottom.)

6. Select YES to continue.

7. From the ComfortNet USER MENU, select AIR CONDITIONER.

NOTE: Screen may show air handler or furnace depending on the type of system installed.

10

8. Next, scroll down and select EQUIP TEST.

9. Select SYSTEM TEST.

10. Select ON to run the SYSTEM TEST.

Press DONE to initiate test.

11. Allow the system test to run for its duration

(5-15 minutes). EQUIP TEST SCREEN will show the system test is ON once selected.

System test will operate the outdoor unit and the indoor unit through a series of startup tests.

Please proceed to the next step and allow for startup tests to complete. Do not interrupt power to outdoor unit, indoor unit, or thermostat during system test.

11

12. Press Previous Menu button and navigate to

HOME screen and allow test to finish. The display similar to the one at the right will be displayed after SYSTEM TEST completes. Test is complete only when CODE 11 notice clears from BOTH the thermostat display AND the seven segment LED display on the outdoor unit. Please wait for test to complete and for both codes to clear.

S

TEP

4. S

ET

T

HERMOSTAT TO

CHARGE MODE

Please follow the following sequence to enter CHARGE MODE.

CHARGE mode allows for charging of the system. System operates for a duration of approximately one hour while the equipment runs at full capacity. After one hour, the CHARGE

MODE ends and the system resumes normal thermostat operation.

Before starting the CHARGE MODE, turn off the electric heater or gas furnace.

1. On the HOME screen, select MENU.

NOTE: Set COOL MODE to OFF before starting CHARGE

MODE.

off

2. From the MENU screen, select

COMFORTNET™ USER MENU.

12

3. Enter Installer password. (The password is the Date Code located on the thermostat and is available by entering the

EQUIPMENT STATUS menu and scrolling to the bottom).


5. Select Air Conditioner.

6. Select MAINTENANCE.

13

7. Select CHARGE MODE.

8. Select ON. Press DONE to initiate CHARGE mode. (System will then run for 1 hour and either return to cooling mode if the thermostat is set for COOL mode, or stop if the thermostat is set for FAN or HEAT mode.)

If charging is not complete after 1 hour, repeat

7. and 8.

Refer to STEP 5 and STEP 6 for refrigerant charge level adjustment.

9. To terminate CHARGE MODE, select CHARGE mode screen again. Press OFF. Press DONE to terminate CHARGE MODE.

10. Once CHARGE MODE is complete and has been terminated, navigate to HOME screen. Enter normal operation with temperature offset or thermostat schedule, as desired.

14

S

TEP

5. A

DJUST

R

EFRIGERANT LEVEL

Using service equipment, add or recover refrigerant according to the calculation in Step 1. Allow system to stabilize for 10 minutes after adjusting charge level.

S

TEP

6. M

EASURE

S

UBCOOLING TO

V

ERIFY

P

ROPER

C

HARGE

NOTE: Charging equipment must use dedicated PVE oil gauges and hoses.

1. Purge gauge lines.

2. Connect service gauge manifold to base valve service ports.

3. Convert the liquid pressure to temperature using a temperature/pressure chart.

4. Temporarily install a thermometer on the liquid line at the liquid line service valve.

a. Ensure the thermometer makes adequate contact

and is insulated for best possible readings.

5. Subtract the liquid line temperature from the converted liquid pressure to determine subcooling.

6. Before starting the Subcooling adjustment, make sure the outdoor ambient temperature is in a below range and the unit is operating at 100% capacity.

SUBCOOLING = (SAT. LIQUID TEMP.) - (LIQUID LINE TEMP.)

SUPERHEAT = (SUCT. LINE TEMP.) - (SAT. SUCT. TEMP.)

Charging Table

OD Ambient Temp

(degF)

< 65 °F 65°F to 105°F > 105 °F

Subcooling

(degF)

Weigh in

Charge

7°F to 9°F

Weigh in

Charge

Note: Subcooling information is valid only while the unit is operating at 100% capacity or 100% of compressor speed in CHARGE MODE.

Compressor speed is displayed under STATUS menu in the thermostat.

7. The system subcooling should be 7 to 9°F. If not in that range, adjust subcooling and superheat according to the following procedure.

a. If subcooling and superheat are low, adjust TXV to 7 to

9°F superheat, then check subcooling.

NOTE: To adjust superheat, turn the valve stem clockwise to increase and counter clockwise to decrease.

b. If subcooling is low and superheat is 7 to 9°F, add charge to rise subcooling to 7 to 9°F, then check superheat.

c. If subcooling is low and superheat is high, add charge to rise subcooling to 7 to 9°F, then check superheat.

d. If subcooling is 7 to 9°F and superheat is high, adjust the

TXV valve to 7 to 9°F superheat, then check subcooling.

e. If subcooling and superheat are high, adjust the TXV valve to 7 to 9°F superheat, then check subcooling.

f. If subcooling is high and superheat is 7 to 9°F, remove charge to lower the subcooling to 7 to 9°F, then check superheat.

g. If subcooling is high and superheat is low, adjust the TXV valve to 7 to 9°F superheat and remove charge to low the subcooling to 7 to 9°F.

h. If subcooling is 7 to 9°F and superheat is low, adjust the

TXV valve to 7 to 9°F superheat and remove charge to lower the subcooling 7 to 9°F, then check the superheat.

NOTE: Not more than 0.5 lb. (8 Oz.) of refrigerant must be added to the system in order to achieve the target subcooling. It is recommended to add 4 oz. refrigerant each time and try adjusting the TXV and let the system stabilize.

NOTICE

C

HECK THE

S

CHRADER PORTS FOR LEAKS AND TIGHTEN VALVE CORES

,

IF

NECESSARY

. I

NSTALL CAPS FINGER

-

TIGHT

.

NOTICE

D

O

NOT

ADJUST THE CHARGE BASED ON SUCTION PRESSURE UNLESS

THERE IS A GROSS UNDERCHARGE

.

Rain

Shield

NOTICE

I

F THE RAIN SHIELD WAS REMOVED DURING THE INSTALLATION

PROCESS

,

BE SURE TO RE

-

INSTALL IT AFTER CHARGING THE UNIT

.

A

IR

C

ONDITIONER WITH

O

UTDOOR

T

EMPERATURE

L

OCKOUTS

It is recommended to set the outdoor temperature lockouts during the initial thermostat set up. Compressor lockout temperature will enable the compressor to be turned off and switch heating source from refrigeration to auxiliary/secondary heating under low outdoor ambient conditions. Backup heat lockout temperature will enable auxiliary/secondary heating to be turned on when outdoor temperature is much higher than indoor temperature, compressor might stop operating under this circumstance.

Line Set Length Range

(ft.)

0 to 100

100 to 200

Compressor Lockout Temperature

(F°)

15

20

In order to access temperature, the compressor lockout and the backup heat lockout, press MENU and scroll down to press IN-

STALLER OPTIONS. Enter the date code (password) when prompted.

Choose VIEW / EDIT CURRENT SETUP and COMPRESSOR LOCKOUT

/ BALANCE POINT will be under HEAT / COOL CONTROL OPTIONS.

For more information please refer to COMFORTNET™ CTK04 Communicating Thermostat SYSTEM INSTALLATION GUIDE.

15

BOOST MODE

BOOST MODE enables the system to operate at a higher compressor speed than rated maximum compressor speed and satisfy the structural load more effectively during higher ambient outdoor conditions. BOOST MODE is initiated by an outdoor temperature sensor located in the outdoor unit.

Please note that outdoor equipment operational sound levels may increase while the equipment is running in BOOST

MODE. Disabling BOOST MODE will provide the quietest and most efficient operation.

NOTE:

BOOST MODE applies to AVXC200**1AB or later model revisions. BOOST MODE performance is most effective when paired with an electronic expansion valve enabled indoor unit.

BOOST MODE is ON by default and is activated when the outdoor temperature reaches 105° F. BOOST MODE can be disabled and enabled and the activation temperature adjusted in the BOOST TEMP menu using the following procedure:

SATURATED SUCTION PRESSURE

TEMPERATURE CHART

SUCTION PRESSURE

PSIG

72

74

76

64

66

68

70

56

58

60

62

50

52

54

95

100

110

120

130

78

80

85

90

140

150

160

170

R-410A

°F

16

17

19

11

13

14

15

6

7

8

10

1

3

4

29

31

36

41

45

20

21

24

26

49

53

56

60

SATURATED LIQUID PRESSURE

TEMPERATURE CHART

LIQUID PRESSURE

PSIG

265

275

285

295

305

325

355

200

210

220

225

235

245

255

375

405

415

425

435

445

475

500

525

550

575

600

625

R-410A

°F

88

90

92

95

97

101

108

78

80

83

85

70

73

76

112

118

119

121

123

125

130

134

138

142

145

149

152

1. On the HOME screen, select MENU.

2. From the MENU screen, select COMFORTNET™ USER MENU.

16

3. Enter Installer password if known.

a. The password is the thermostat date code and can be

obtained by selecting the red Cancel button and

selecting the Dealer information button.

b. Once recorded, click the green OK button and return to

the previous step.


5. Select AIR CONDITIONER.

6. Select SYS SETUP.

Menu > ComfortNet User Menu

Previous

Menu

Help

Air Handler

17

Previous

Menu

Help

SYS SETUP

EQUIP TEST

MAINTENANCE

COOL SET-UP

7. BOOST MD turns BOOST MODE OFF or ON. BOOST MODE

is ON by default.

Previous

Menu

Help

SET MAX CURRENT: OFF

VERTICAL RISE:

Outdoor

Lower

BOOST MD: ON

BOOST TEMP: Always On

Cancel Help

OFF

ON

Done

8.

BOOST TEMP adjusts the activation temperature from 70° F to 105° F. “Always ON” option is also available to permanently engage BOOST MODE. Factory default is 105° F.

Previous

Menu

Help

SET MAX CURRENT: OFF

VERTICAL RISE:

Outdoor

Lower

BOOST MD: ON

BOOST TEMP: Always On

18

Cancel Help

Always On

70F

75F

Done

9.

Once satisfied with BOOST MODE adjustments, navigate to the HOME screen by selecting the Previous Menu button three times then selecting HOME.

D

EHUMIDIFICATION

The thermostat reads the indoor humidity level from the CTK04 and allows the user to set a dehumidification target based on these settings. The thermostat controls the humidity level of the conditioned space using the cooling system. Dehumidification is engaged whenever a cooling demand is present and structural humidity levels are above the target level. When this condition exists, the circulating fan output is reduced, increasing system run time, over cooling the evaporator coil and ultimately removing more humidity from the structure than if only in cooling mode.

The CTK04 also allows for an additional overcooling limit setting from 0°F to 3°F setup through the Installer Option menu (directions following). This allows the cooling system to further reduce humidity by lowering the temperature up to 3°F below the cooling setpoint in an attempt to better achieve desired humidity levels.

By default, dehumidification needs to be turned ON at the thermostat via the Dehumidification Equipment menu. Dehumidification can be activated at the original equipment setup by selecting the

A/C with Low Speed Fan button in the Dehumidification Menu.

Availability can be verified by pressing MENU on the home screen.

Scroll down and if a Dehumidification button is present, dehumidification is activated.

If Dehumidification is not available in the menu then it must be enabled through the Installer Options menu. Use the following procedure to enable and disable dehumidification:

1. On the CTK04 HOME screen select MENU.

2. From the MENU screen, scroll down and select Installer

Options.

3. Enter installer password if known.

a.

The password is the thermostat date code and can be obtained by selecting the red Cancel button and selecting the Dealer Information button.

b.

Once recorded, click the green OK button and return to the previous step.


5. Select View / Edit Current Setup.

6. Scroll down and select Dehumidification.

7. Once open select Dehumidification Equipment: None.

8. From the Dehumidification Menu select A/C with Low Speed

Fan and click the green Done button.

9. Additional Dehumidification operational options can be selected in the resulting window.

10. Once satisfied with the selection, navigate to the HOME screen by selecting the Done button and selecting Yes to verify the changes.

11. Select Previous Menu, then the HOME to return to the main menu.

D

EHUMIDIFICATION

T

IPS

For effective dehumidification operation:

• Ensure “Dehum” is ON through the Installer Options menu and/or in the ComfortNet User Menu (COOL SETUP).

• If ON, the Dehumidification menu should be visible in the main menu.

• Verify the cooling airflow profile is set to “Profile D”.

• See the Cool Set-up section of the Installation Manual for complete airflow profile details.

• By default, “Dehum” is ON and the cooling airflow profile is set to “Profile D”.

• For additional dehumidification control, airflow settings are field adjustable and can be fine-tuned to a value that is comfortable for the application from a range of

+15% to -15%.

• See the Heat Pump Advanced Feature Menu section of the Installation Manual for more detail.

19

C

OMFORT

N

ET

™ S

YSTEM

O

VERVIEW

A ComfortNet inverter heating and air conditioning system uses an indoor unit, outdoor unit and thermostat which digitally communicate with one another via a two-way communications path.

The thermostat sends commands to the indoor and outdoor units.

The thermostat may request and receive information from both the indoor and outdoor units. This information may be displayed on the CTK04 thermostat. The indoor and outdoor units also interact with one another. The outdoor unit may send commands to or request information from the indoor unit. This two-way digital communications between the thermostat and subsystems (indoor/ outdoor unit) and between subsystems is the key to unlocking the benefits and features of the ComfortNet system.

Two-way digital communications is accomplished using only two wires. The thermostat needs 24 VAC for power. 4 wires between the indoor unit and thermostat plus two wires between the indoor unit and outdoor unit are all that are required to operate the system.

C

OMFORT

N

ET

S

YSTEM

A

DVANCED

F

EATURES

The ComfortNet™ system permits access to additional system information, advanced set-up features, and advanced diagnostic/ troubleshooting features. These advanced features are organized into a menu structure. See the AIR CONDITIONER ADVANCED FEA-

TURES MENU section for the menu layout.

D

IRECTIONS TO

A

IR

C

ONDITIONER

A

DVANCED

F

EATURE

M

ENUS

Press MENU, scroll down and press COMFORTNET USER MENU.

Enter the date code (password) when prompted. The date code is printed on the back of the thermostat; or press MENU > EQUIP-

MENT STATUS and scroll down to find the date code. After you enter the password, select COMFORTNET USER MENU, answer YES to the following menu and select AIR CONDITIONER to view the system menus.

D

IAGNOSTICS

The air conditioner’s diagnostics menu provides access to the most recent faults. The six most recent faults are displayed on the first screen. Six additional faults are displayed under fault history. Faults are stored in order from most recent to least recent.

Any consecutively repeated fault is stored a maximum of three times. Example: A leak in the system, low refrigerant charge or an incompletely open stop valve can cause the unit to flash error code E15. This error code suggests that the unit is experiencing operation at low pressure. The control will only store this fault the first three consecutive times the fault occurs.

NOTE: It is highly recommended that the fault list be cleared after performing maintenance or servicing the air handler.

Status

This menu displays information about the systems current status.

This menu can be utilized to confirm correct functionality of the equipment and for troubleshooting purposes. The following items will be displayed:

TS

Time Stamp

MD

CRM

RAD

RAF

ATOF*

DCT

DLT

PSDST**

Mode

Compressor Reduction Mode

Requested and Actual % Demand

Requested and Reported ID CFM

Outdoor Air Temperature and Outdoor Fan RPM

Discharge Temperature and Outdoor Coil Temperature

Outdoor Liquid Temperature

Pressure Sensor and Outdoor

Suction Temperature

* Only for AVXC200**1AB or later revision.

ATPRM is shown in AVXC200**1AA revision.

** Only for AVXC200**1AB or later revision.

PSD is shown in AVXC200**1AA revision.

C

ONFIGURATION

The configuration menu provides identification / functional information about the installed equipment. System tonnage, model number, serial number, inverter software version, control software version and number of cooling stages are displayed within this menu. A model number check will help determine if the equipment shared data is correct for the unit (if the model number is not correct for the air conditioner, even though very rare, a memory card is available to load the proper data). Other data can be used for diagnostic purposes.

Time Stamp: Provides compressor run time in hours.

Mode: Current system operational mode (COOLING, COOLING

STARTUP, OIL RETURN, STOP).

20

Compressor Reduction Mode: The compressor is running at a speed lower than what is requested, based on the cooling load.

Requested and Actual % Demand: Compares the requested cooling demand to what the equipment is providing. For steady state operation, these number should match.

Requested and Reported ID CFM: Compares the requested indoor airflow to what the indoor equipment has reported.

Outdoor Air Temperature and Outdoor Fan RPM: Displays the outdoor air temperature as well as the outdoor fan speed (RPM).

Discharge Temperature and Outdoor Coil Temperature: Displays the discharge temperature and outdoor coil temperature sensor readings.

Outdoor Liquid Temperature: Displays liquid temperature sensor readings.

Pressure Sensor: Displays the pressure sensor reading.

NOTE: Oil Return Mode: In order to properly return oil to the compressor, compressor speed may periodically adjust to assist oil circulation.

E

QUIPMENT

T

EST

The mandatory system verification test is enabled from this menu, which enables a functional check of the equipment, in addition to ensuring proper stop valve position.

M

AINTENANCE

Pump down and charge modes can be enabled within this menu.

C

OOL

S

ET

-

UP

This menu allows for the adjustment of several cooling performance variables. Cool Airflow Trim (range from -15% to 15% in

3% increments), Cool Airflow Profiles, Cool Fan ON Delay, Cool

Fan OFF Delay and Dehumidification Select (enable or disable dehumidification) can be adjusted in this menu. You can also reset this entire menu to factory default settings. See the following images showing the four cooling airflow profiles.

• Profile C ramps up to 82% of the full cooling demand airflow and operates there for approximately 7 1/2 minutes. The motor then steps up to the full demand airflow. Profile C also has a one (1) minute 100% OFF delay.

OFF

• Profile D (default) ramps up to 50% of the demand for 1/2 minute, then ramps to 82% of the full cooling demand airflow and operates there for approximately 7 1/2 minutes. The motor then steps up to the full demand airflow.

Profile D has a 1/2 minute at 50% airflow OFF delay.

OFF

100% CFM

OFF

OFF

Airflow Tables

Cool Run Values

Depending on the system configuration, adjusting the maximum compressor RPS (revolutions per second) may be required. Necessary adjustments to the maximum compressor RPS are made through the following sub-menus.

M

AXIMUM

C

OMPRESSOR

RPS R

ANGE FOR

C

OOLING

Select the range that your maximum compressor RPS falls within.

M

AXIMUM

C

OMPRESSOR

RPS S

ELECTION FOR

C

OOLING

Within the selected range, choose the specific maximum compressor RPS for the system configuration.

• Profile A provides only an OFF delay of one (1) minute at 100% of the cooling demand airflow.

100% CFM

OFF

100% CFM

1 min

OFF

• Profile B ramps up to full cooling demand airflow by first stepping up to 50% of the full demand for 30 seconds. The motor then ramps to 100% of the required airflow. A one (1) minute OFF delay at 100% of the cooling airflow.

100% CFM

OFF

50% CFM

1/2 min

100% CFM

1 min

OFF

21

A

IR

C

ONDITIONER

A

DVANCED

F

EATURE

M

ENU

SUBMENU ITEM

System A/C Tonnage

Model Number

Serial Number

INV Software

CTRL Software

Number of A/C Stages

CONFIGURATION

INDICATION (FOR DISPLAY ONLY; NOT USER MODIFIABLE)

Displays the air conditioning tonnage.

Displays the air conditioner model number.

Displays the air conditioner serial number.

Displays the air conditioner inverter software version.

Displays the air conditioner control software version.

Displays MODULATING for the inverter-based unit.

SUBMENU ITEM

Clear Faults

Fault 1

Fault 2

Fault 3

Fault 4

Fault 5

Fault 6

DIAGNOSTICS

INDICATION/USER

MODIFIABLE OPTIONS

COMMENTS

Selecting "YES" clears the fault history.

NO or YES

Most recent AC fault

2nd most recent AC fault

3rd most recent AC fault

4th most recent AC fault



STATUS

SUBMENU ITEM

Time Stamp (TS)

COMMENTS

Provides compressor run time in hours.

Mode (MD)

Current system operation mode (COOLING, COOLING STARTUP, OIL RETURN, STOP).

Compressor Reduction Mode (CRM)

Requested and Actual % Demand (RAD)

Displays ON or OFF status. ON indicates that the reduction mode is operating and the compressor is running at a lower speed than the cooling load would normally require.

Displays a 0-100% value, based on a ratio of the requested cooling demand to what the system is actually providing.

Compares the requrested indoor airflow to what the indoor equipment has reported.

Requested and Reported ID CFM (RAF)

Outdoor Air Temperature and Outdoor Fan

RPM (ATOF*)

Discharge Temperature and Outdoor Coil

Temperature (DCT)

Displays the outdoor air temperature as well as the outdoor fan speed (RPM).

Displays the discharge temperature and outdoor coil temperature sensor readings.

Outdoor Liquid Temperature (DLT) Displays the outdoor liquid temperature sensor readings.

Pressure Sensor (PSDST**)

Displays the low pressure sensor reading which is taken slightly upstream of the suction accumulator.

* Only for AVXC200**1AB or later revision. ATPRM is shown in AVXC200**1AA revision.

** Only for AVXC200**1AB or later revision. PSD is shown in AVXC200**1AA revision.

SYSTEM SETUP (SYS SETUP)

SUBMENU ITEM

Reset System Setup Options to Factory

Defaults (SYS SETUP RESET)

SET MAX CURRENT

USER MODIFIABLE OPTIONS

NO or YES

N/A

COMMENTS

Selecting "YES" resets this menu to factory default settings.

VERTICAL RISE

BOOST MODE (BOOST MD)

BOOST MODE TEMPERATURE

(BOOST TEMP)

Same Level, Outdoor Lower, or

Indoor Lower

ON or OFF

Always ON, 70,75,80,85,

90,95,100,105F

NOTE: BOOST MODE is applicable only for AVXC200**1AB or later revision.

Future use.

If the outdoor & indoor units are within +/- 15 ft. vertical distance, select SAME LEVEL. If the outdoor unit is more than 15 ft. below the indoor unit, select OUTDOOR LOWER. If the outdoor unit is more than 15 ft. above the indoor unit, select

INDOOR L

BOOST MD turns BOOST MODE OFF or ON. BOOST MODE is ON by default. See BOOST MODE section of this manual for more details.

BOOST TEMP adjusts the activation temperature from 70° F to

105° F. An "Always ON" option is also available to permanently engage BOOST MODE.

22

A

IR

C

ONDITIONER

A

DVANCED

F

EATURE

M

ENU

SUBMENU ITEM

System Verification Test (SYSTEM TEST)

EQUIPMENT TEST (EQUIP TEST)

INDICATION/USER

MODIFIABLE OPTIONS

COMMENTS

ON or OFF

System Verification Test must be run after installation. This is approximately a 5-15 minute test. If the thermostat is set to

COOL mode, the system will enter CHARGE mode upon completion, otherwise it will stop.

SUBMENU ITEM

PUMP DOWN

CHARGE MODE

SYSTEM MAINTENANCE

USER MODIFIABLE OPTIONS COMMENTS

ON or OFF

Enter PUMP DOWN Mode. This procedure runs the equipment for approximately 15 minutes and allows accumulation of refrigerant at the outdoor unit for purposes of removing & replacing the indoor unit or outdoor unit.

ON or OFF

Enter Charging Mode. This allows for a steady system operation for a duration of approximately 1 hour to allow for refrigerant charging of the system via the suction charge port.

The system will stop after completion.

SUBMENU ITEM

CL Reset

Cool Airflow Trim

Cool Airflow Profile

Cool ON Delay

Cool OFF Delay

Dehumidification Select

COOL SETUP


YES or NO

-10% to +10% in 2% increments

A, B, C, or D

5, 10, 20, 30 seconds

30, 60, 90, 120 seconds

ON or OFF

Selecting to default factory setting.

Selects the cooling airflow trim amount.

Selects the cooling airflow profile.

Selects the indoor blower ON delay.

Selects the indoor blower OFF delay.

Selecting OFF disables dehumidification; selecting ON enables dehumidification.

SUBMENU ITEM

Maximum Compressor RPS Range for

Cooling (COOL RPS RANGE)

Maximum Compressor RPS Selection for

Cooling (COOL RPS SELECT)

SET COOLING RUN VALUES (CL RUN VALUES)


Five different compressor RPS ranges will be provided.

Select the appropriate range for the installed system configuration.

10 compressor RPS values will be provided within the range selected in the COOL RPS RANGE menu

Select the appropriate compressor RPS for the installed system configuration.

23

W

IRING

D

IAGRAM

- 2 - 3 T

ONS

AVXC200241**; AVXC200361**

COIL CIRCUIT

LIQUID LINE

DISCHARGE LINE

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

24

W

IRING

D

IAGRAM

- 4 T

ONS

AVXC200481**


25

W

IRING

D

IAGRAM

- 5 T

ONS

AVXC200601**

2 A X 30

AMBIENT

A X 11


26

C

APACITOR

WARNING

A

VOID CONTACT WITH THE CHARGED AREA

.

•N

EVER TOUCH THE CHARGED AREA BEFORE CONFIRMING THAT THE RESIDUAL VOLTAGE IS

50

VOLTS OR LESS

.

1. S

HUT DOWN THE POWER AND LEAVE THE CONTROL BOX FOR

10

MINUTES

.

2. M

AKE SURE TO TOUCH THE

E

ARTH GROUND TERMINAL TO RELEASE THE STATIC ELECTRICITY FROM YOUR BODY

(

TO PREVENT

FAILURE OF THE

PC

BOARD

).

3. M

EASURE THE RESIDUAL VOLTAGE IN THE SPECIFIED MEASUREMENT POSITION USING A

VOM

WHILE PAYING ATTENTION NOT TO

TOUCH THE CHARGED AREA

.

4. I

MMEDIATELY AFTER MEASURING THE RESIDUAL VOLTAGE

,

DISCONNECT THE CONNECTORS OF THE OUTDOOR UNIT

’

S FAN

MOTOR

. (I

F THE FAN BLADE ROTATES BY STRONG WIND BLOWING AGAINST IT

,

THE CAPACITOR

WILL BE CHARGED,

CAUSING

THE DANGER OF ELECTRICAL SHOCK

.)

2-3 TONS

O N

O S T D EFR

0 1

( )

1

C612

C518

F CT

I CT

VC T

•t ‚¯‹à‹ï‚ª

—L‚é

C +

C617

B K

C613

M T ER

C-

Capacitor Voltage

C+

DIP

-

B K

~ ~

+

C610

C609

27

C

APACITOR

WARNING

A


.

•N


50

VOLTS OR LESS

.

1. S


10

MINUTES

.

2. M


E


(

TO PREVENT

FAILURE OF THE

PC

BOARD

).

3. M


VOM



.

4. I


,


’

S FAN

MOTOR

. (I


,

THE CAPACITOR


CAUSING


.)

4 TONS

C+

Capacitor Voltage

C-

28

C

APACITOR

WARNING

A


.

•N


50

VOLTS OR LESS

.

1. S


10

MINUTES

.

2. M


E


(

TO PREVENT

FAILURE OF THE

PC

BOARD

).

3. M


VOM



.

4. I


,


’

S FAN

MOTOR

. (I


,

THE CAPACITOR


CAUSING


.)

5 TONS

29

C-

Capacitor Voltage

C+

COOLING ANALYSIS CHART

POSSIBLE CAUSE

X IN ANALYSIS GUIDE INDICATE

"POSSIBLE CAUSE"

Liquid stop valve does not fully open

Gas stop valve does not fully open

Line set restriction

Line set length is too long

Blocked filter-dryer

OD EEV coil failure

OD EEV failure

Check valve failure – Blocked

High Pressure switch failure

Pressure sensor failure

Discharge temp sensor failure

Coil temp sensor failure

Liquid temp sensor failure

Ambient temp sensor failure

OD recirculation

ID recirculation

Dirty OD Heat-exchanger

Dirty ID Heat-exchanger

Outdoor Ambient temp is too high

Outdoor Ambient temp is too low

ID suction temp is too high

ID suction temp is too low

Mixture of non-condensible gas

OD fan motor failure

Over charge

Under charge

Leak

TXV failure

TXV is small

TXV is big

OD Control Board Failure

ID Failure

Compressor failure

Cooling loop is not attached

Cooling loop grease is not enough

Compressor and Gas furnace are operating at the same time

Low ID CFM

X

X

X

X

X

X X X

X X X

X X X

X X

X X X

X X X

X X X

X X X

X

X

X

X

X

X

X

X

X

X X X

X

X

X

X

X

X

X X

X

X

X

X

X X X X

X X X

X X X X X

X X X

X X X X X

X X X

X X X X X

X

X

X X

X

X

X X

X X X

X X X

X X X X X X

X

X

X X X X X

X X X X

X

X X X

X

X X X

X X X

X

X

X X

X X

X

X

X

X X X

X X X X X X X X X X X X X X X X

X X X X X X X

X X X X X X X X

X

X

X

X

X

X

X

X

X

X

X

X

X X X X

X X X

X

X

X

X

X

X

X

X X

X

Outdoor Normal Temperature Operating Range: 67-115° / Indoor Normal Temperature Operating Range: 65 - 85°

X

X

X

X

X

X

X X X X X

X X X X

X X X X

X X X X X X X X X X X X X X X X X

X X X X X X X X

X X X

X X X

X X X X X

X

X

X

X

X

X

X

X

X

X

X

X X

X

X

X

X X

X

X

X

X

X

X

WARNING

A


.

•N


50

VOLTS OR LESS

.

1. S


10

MINUTES

.

2. M


E


(

TO PREVENT FAILURE OF THE

PC

BOARD

).

3. M


VOM

WHILE PAYING ATTENTION NOT TO TOUCH THE CHARGED AREA

.

4. I


,


’

S FAN MOTOR

. (I

F THE FAN BLADE ROTATES BY

STRONG WIND BLOWING AGAINST IT

,

THE CAPACITOR


CAUSING THE DANGER OF ELECTRICAL SHOCK

.)

30

T

ROUBLESHOOTING

ClimateTalk

Fault Code

PCB LED

Display

Transmitted ClimateTalk

Message

12 E12 OD CTRL FAIL1

13

14

15

16

17

18

19

21

22

E13

-

E15

-

E17

E18

E19

E21

E22

HI PRESSURE C

(C = CRITICAL)

HI PRESSURE M

(M = MINOR)

LOW PRESSURE C

LOW PRESSURE M

COMPRESSOR FAIL

OD CTRL FAIL2

PCB OR FAN FAIL

EEV CTRL FAIL

HI DISCH TEMP

Thermostat Fault

Indicates a general memory error.

This error indicates the equipment is experiencing frequent high pressure faults.

Probable Causes

● High electrical noise

● Faulty control board

● Blocked/restricted condenser coil and/or lines

● Stop valve not completely open

● Overcharge

● Outdoor fan not running

● Faulty TXV

● High pressure switch (HPS) inoperable


Corrective Actions

● Replace control board if necessary

● Check and clean condenser coil and/or lines

● Check the opening of stop valve, should be full open;

Repair/replace if needed

● Check refrigerant charge level; Adjust if needed

● Check outdoor fan motor & wiring; Repair/replace if needed

● Check TXV; Replace if needed


This error indicates the equipment is experiencing frequent high pressure faults. Control has determined continued operation is acceptable. This indicates they may be a problem with the equipment.

This error indicates the equipment is experiencing frequent low pressure faults.

This error indicates the equipment is experiencing frequent low pressure faults. Control has determined continued operation is acceptable. This indicates they may be a problem with the equipment.



● Overcharge



● Faulty TXV



● Restriction in refrigerant lines

● Low refrigerant charge

● Refrigerant leak

● Low pressure sensor inoperable or not properly connected

● Indoor fan motor not functioning correctly

● Faulty TXV



● Restriction in refrigerant lines




● Indoor fan motor not functioning correctly

● Faulty TXV









● Check high pressure switch; Replace if necessary



● Check for restrictions in refrigerant line;



● Test for system leaks using leak test procedure

● Check the connection to low pressure sensor;



● Check indoor blower motor & wiring; Repair/replace if needed




● Check for restrictions in refrigerant line;







● Check indoor blower motor & wiring; Repair/replace if needed


This error indicates the equipment is experiencing frequent compressor faults.

Indicates the control board may need to be replaced.

This error indicates the equipment is experiencing frequent outdoor control board and/or motor faults.

This error indicates the equipment is experiencing frequent low discharge superheat faults.

This error indicates the equipment is experiencing frequent high discharge temperature faults.

Discharge thermistor is not put on correct position.


● The compressor wire is lost phase

● Compressor motor failure

● Outdoor fan motor not connected properly


● Noise

● Obstruction in fan rotation



● Faulty control borad

● Noise



● Check the wire between control board and compressor

● Inspect compressor motor for proper function;

Replace if necessary

● Check wiring from Outdoor fan motor to control board;

Repair if needed.


● Check and clean grille or any debris

● Check wiring from Outdoor fan motor to control board;

Repair if needed

● Check outdoor fan motor & wiring. Repair/replace if needed


● Thermistors inoperable or improperly connected

● Faulty TXV

● Over charge

● Faulty presure sensor


● Check the connection to thermistors; Repair/replace if needed

● Check TXV; Replace/repair if needed


● Check pressure sensor; Repair/replace if needed


● Discharge thermistor inoperable or improperly connected

● Discharge thermistor is put on incorrect position or off


● Overcharge

● Faulty compressor

● Check discharge thermistor resistance and connections; Repair/replace as needed

● Check discharge thermistor position


● Check the compressor; Repair/replace if needed

31

T


ClimateTalk

Fault Code

PCB LED

Display


Message

23

24

25

26

28

29

30

31

32

33

34

35

36

37

38

39

E23

E24

E25

E26

E28

E29

E30

E31

E32

-

E34

E35

E36

E37

E38

E39

DISCH TEMP FAIL

HPS OPEN

AIR SENSOR FLT

PRESSURE SENSOR

COIL TEMP FAIL2

LIQ TEMP FAIL

OD CTRL FAIL3

HI LEAK CURRENT

HI TEMP CTRL1

HI TEMP CTRL2

CURRENT SPIKE

HIGH CURRENT

STARTUP ERROR

OD CTRL FAIL4

COMP VOLTAGE

OD CTRL FAIL5


The control has detected that the

Discharge Temperature Sensor is out of range.

Probable Causes Corrective Actions



The high pressure switch is open.


● Check resistance on HPS to verify operation; Replace if needed

The outdoor air temperature sensor is open or shorted.

The control has detected that the

Outdoor Coil Temperature Sensor is out of range.

● Faulty outdoor thermistor sensor or disconnect

The control determines that the pressure sensor is not reacting properly.


● Outdoor coil thermistor inoperable or not properly connected

The control has detected that the Liquid

Temperature Sensor is out of range.


● Liquid thermistor inoperable or not properly connected

● Wiring to control board disconnected


● Noise

The control has detected high leakage current (high voltege).

● Improper ground


● Inspect and test sensor; Replace sensor if needed



● Check the connection to OD coil thermistor;


● Check the connection to liquid thermistor;


● Check wiring to control board; Repair as needed


●Check ground screws/lugs and wiring; Repair/replace if needed


This error indicates the equipment is experiencing high temperature faults on the outdoor control board.

● Ambient air conditions too high

● Cooling bracket screw(s) missing or not properly fastened (2-4 ton only)

● No or poor thermal grease coating between cooling plumbing and cooling bracket on control board (2-4 ton only)

● Outdoor fan low speed (5 ton only)

● No flow or limited flow through control board cooling circuit (potential restriction in line or low refrigerant) (2-4 ton only)

● Stop valve not completely open (2-4 ton only)

● Cycle power; re-try during usable ambient temperature range

● Verify cooling bracket screws in place and secure;

Secure fasteners as needed (2-4 ton only)

● Check thermal grease inside cooling bracket on control board; Apply additional grease as needed

● Check outdoor fan motor & wiring; Repair/replace if needed (5 ton only)

● Check for restriction in line

● Check refrigerant charge level; Adjust if needed (2-4 ton only)


Repair/replace if needed (2-4 ton only)

This error indicates the equipment is experiencing high temperature faults on the outdoor control board. Control has determined continued operation is acceptable. This indicates they may be a problem with the equipment.

Board detected a high current condition.

This indicates the potential for a short circuit.

● Ambient air conditions too high

● Cooling bracket screw(s) missing or not properly fastened (2-4 ton only)

● No or poor thermal grease coating between cooling plumbing and cooling bracket on control board (2-4 ton only)

● Outdoor fan low speed (5 ton only)

● No flow or limited flow through control board cooling circuit (potential restriction in line or low refrigerant) (2-4 ton only)

● Stop valve not completely open (2-4 ton only)


● Verify cooling bracket screws are in place and secure;

Secure fasteners as needed (2-4 ton only)

● Check thermal grease inside cooling bracket on control board; Apply additional grease as needed

● Check outdoor fan motor & wiring; Repair/replace if needed (5 ton only)

● Check for restriction in line

● Check refrigerant charge level; Adjust if needed (2-4 ton only)

● Check the opening of stop valve - it should be fully open; Repair/replace if needed (2-4 ton only)

● Current spike in supply





● Check power supply for in-rush current during start-up or steady state operation






Board detected a high current condition.

● Short circuit condition


● Overcharge



● Check installation clearances.





● Check the compressor; Repair/replace if needed.

The control encountered an abnormal condition during the startup procedure.



● Inconsistent compressor load





The control has detected a voltage related issue with the compressor.


● High or low voltage from supply








● Check wiring from outdoor fan motor to control board;

Repair if needed


● Correct low/high line voltage condition; Contact local utility if needed





32

T


ClimateTalk

Fault Code

PCB LED

Display


Message

40

41

42

43

44

45

E40

E41

E42

E43

E44

E45

COMP MISMATCH

LOW REFRIGERANT

LOW LINE VOLT

HIGH LINE VOLT

OP TEMP RANGE

NO COOLING TEST


Control determines that its compressor requirement is different than the compressor capability.

The control has detected a low refrigerant condition.

Control detects a low power supply voltage condition.

Control detects a high power supply voltage condition.

Probable Causes

● Memory card not correct

● Control board mismatch



● Thermisters inoperable or not properly connected

● Low line voltage supply

● High line voltage supply


● Check memory card data vs. air conditioner model

● Verify control board size vs. air conditioner model;

Replace control board if necessary



● Checkthe connection to thermistor; Repair/replace if needed

● Check circuit breakers and fuses; Replace if needed

● Verify unit is connected to power supply as specified on rating plate

● Correct low line voltage condition; Contact local utility if needed

● Verify unit is connected to power supply as specified on rating plate

● Correct high line voltage condition; Contact local utility if needed

The control detects the outdoor temperature outside recommended operational range. Unit may continue to operate normally.

● Ambient air conditions too high or low

The control is unable to start the Cooling mode test because indoor heat has been turned on by thermostat. Please set thermostat to off position.

● Heat provided by secondary heating source


● Turn off heater using thermostat before running AHRI mode

47

48

49

50

51

52

53

54

55

57

E47

E48

E49

E50

E51

-

-

-

-

-

NO SYS VER TEST

NO PUMP DOWN

NO CHARGE MODE

LINE VOLT CTRL

OD COMM ERROR

COMP FAIL MINOR

PCB PR FAN MIN

EEV MINOR

HI DIS TEMP MIN

CL LOOP SWEAT

The control is unable to start the System

Verification test because indoor heat has been turned on by thermostat. Please set thermostat to off position.


The control is unable to enter the Pump

Down Mode because indoor heat has been turned on by thermostat. Please set thermostat to off position.


The control is unable to enter Charging

Mode because indoor heat has been turned on by thermostat. Please set thermostat to off position.


● Turn off heater using thermostat before operation



This indicates there is a voltage issue on the control board. See service manual for troubleshooting information.

● High or low voltage from supply


This indicates potential communication issues have been detected by the outdoor control board.

● Communication wiring disconnected

This error indicates the equipment is experiencing frequent compressor faults.

Control has determined continued operation is acceptable. This indicates they may be a problem with the equipment.



● Compressor motor failure

This indicates the control is sensing sweating on the cooling loop.

● Correct low/high line voltage condition; Contact local utility if needed


● Check communication wiring; Repair as needed




● Inspect compressor motor for proper function;

Replace if necessary

This error indicates the equipment is experiencing frequent outdoor control board and/or motor faults.

Control has determined continued operation is acceptable. This indicates there may be a problem with the equipment.

This error indicates the equipment is experiencing frequent low discharge superheat faults.

Control has determined continued operation is acceptable. This indicates they may be a problem with the equipment.

● Obstruction in fan rotation

● Ooutdoor fan motor not connected properly

● Outdoot fan not running


● Noise


● Faulty TXV


● Check and clean grille of any debris

● Check wiring from outdoor fan motor to control board;

Repair if needed






● Replace indoor unit with TXV applicable indoor unit

This error indicates the equipment is experiencing frequent high discharge temperature faults. Control has determined continued operation is acceptable. This indicates they may be a problem with the equipment.


● Discharge thermistor is put on incorrect position or off


● Overcharge



● Check discharge thermistor position




● Refrigerant Leak


● Faulty TXV

● Thermistors inoperable or improperly connection





33

T


ClimateTalk

Fault Code

PCB LED

Display


Message

B0

B9

D0

D1

Eb0

Eb9

Ed0

Ed1

NO ID AIRFLOW

LOW ID AIRFLOW

NO NET DATA

INVALID DATA


The estimated airflow from indoor subsystem is near to 0 CFM.

Estimated airflow from motor is lower than the airflow requirement.

Probable Causes

● Failed indoor blower motor

● Indoor fan motor not properly connected

● Too much static pressure

● Failed indoor blower motor

● Indoor fan motor not properly connected

● Too much static pressure


● Check ID fan motor wiring and connectors;


● Check ID fan motor; Replace if needed

● Check ID fan motor wiring and connectors;


● Check ID fan motor; Replace if needed

Control board does not have the necessary data for it to properly perform its functions.

Control board does not the appropriate data needed to properly perform its functions.

● Air conditioner is wired as part of a communicating system and integrated control module does not contain any shared data.


● Re-write shared data using memory card

● Air conditioner is wired as part of a communicating system and integrated control module contains invalid shared data or network data is invalid for the integrated control module.


● Re-write shared data using memory card

D2 Ed2 INVALID SYSTEM

The airflow requirement is greater than the airflow capability of the indoor subsystem.

● Air conditioner/heat pump is wired as part of a communicating system and outdoor unit requires airflow greater than indoor unit's airflow capability

● Shared data is incompatible the system or missing parameters

● Communication wiring has loose connection.

● Verify shared data is correct for your specific model;

Repopulate data if required

● Check communication wiring. Repair as needed.

D3

D4

11

Ed3

Ed4

E11

INVALID CONFIG

There is a mismatch between the shared data and the control physical hardware.

● Shared data sent to integrated control module does not match hardware configuration.

INVALID MC DATA

RUN SYS TEST

The memory card data has been rejected.

This test is required at startup. Installer should navigate to the ComforrtNet User

Menu, choose Air Conditioner, then

EQUIP TEST and SYSYTEM TEST.

Selecting ON will run the required test.

Display will clear once testing is complete.

● Shared data on memory card has been rejected.

● Incomplete SYSTEM TEST

● SYSTEM TEST is running


Repopulate data if required.


Repopulate data if required.

MESSAGE ONLY

34

T


N

ETWORK

T

ROUBLESHOOTING

Communications is achieved by taking the difference between a positive dc signal and a negative dc signal. The positive dc signal is termed “data 1” or “1’. Data 1 is positive with respect to ground

(or common). The negative dc signal is termed “data 2” or “2”.

Data 2 is negative with respect to ground (or common).

Data 1 should be approximately 2.8 volts dc. Data 2 should be approximately 2.2 volts dc. The voltage difference between data 1 and data 2 should be approximately 0.6 volts dc.

Verify that the bus DS1 dip switches are in the ON position.

The ComfortNet™ system is a fully communicating system, constituting a network. Occasionally the need to troubleshoot the network may arise. The integrated control module has some onboard tools that can be used to troubleshoot the network. These tools are: red communications LED, green receive (Rx) LED, and the learn button.

• Red communications LED – Indicates the status of the network. The table below indicates the LED status and the corresponding potential problem.

• Green receive LED – Indicates network traffic. The table below indicates the LED status and the corresponding potential problem.

• LEARN button – Used to reset the network. Depress the button for approximately 5 seconds to reset the network.

2-4 Tons 5 Ton

LED color

Red Communications LED

(H1P)

LED Status

Off

1 Flash

2 Flash

Indication

Nominal condition

Communications Failure

Out-of-box reset

Off

No power

Communications error

Green Receive LED

(H2P)

1 Steady Flash No network found

Rapid Flashing Nominal network traffic

On Solid Data 1/Data 2 miss-wire

Probable Causes

● None

● Unknown packet is received

● Control power up

● Learn bu on depressed

● No power to Outdoor unit

● Open fuse

● Communica on error


● none

● Depress learn bu on

● None

● Check circuit breakers and fuses; Replace if needed

●Reset network by depressing learn bu on

● Check communica on wires (data 1/ data 2 wires); Replace if needed

● Broken/ disconnected communica on wire(s)

● AC is installed as a legacy/ tradi onal system


● Check installa on type (legacy/ tradi onal or communicating)

● Check data 1/ data 2 voltages

● Control is "talking" on network as expected ● none

● Data 1 and data 2 wires reversed at indoor unit, thermostat, or outdoor unit

● Short between data 1 and data 2 wires

● Short between data 1 or data 2 wires and R (24VAC) or

C (24VAC common)


● Check data 1/ data 2 voltages

35

S

ETTING

T

HE

M

ODE

D

ISPLAY

MODE DISPLAY INTRODUCTION

A 3-digit display is provided on the printed circuit board (PCB) as a backup tool to the thermostat for reading faults, fault history, monitoring and setting up the unit. Follow the information provided in this section to learn how to use the mode display.

DISPLAY

The display consists of 3 digits.

OFF

ON

Blink interval: 0.4 sec. On - 0.4 sec. Off

SEG1

SEG2 SEG3

DISPLAY BUTTON LAYOUT

The display buttons shown can be used to navigate and select items:

TEST

OR

RECALL LEARN LEARN

RECALL

Examples of button layout are shown above.

Identify correct display buttons on your unit PCB.

TEST

MODES

There are 5 modes which can be accessed using the setting display:

FAULT CODE, FAULT HISTORY, MONITORING, SETTING MODE 1 and SETTING MODE 2.

To enter any of these modes, use the schemes shown in this section. Each mode has its own corresponding “Screen #” within the display itself which allows the user to navigate and use the features. (Example: The Fault Code is accessed and displayed from

“Screen 0” of the 7-segment display. The Fault History is accessed and display using

“Screen 1” of the display, etc.)

MODE

Fault Code Display

Fault Code History

Monitoring Mode

Setting Mode 1

Setting Mode 2

FUNCTION

Present fault (if any).

6 Recent faults stored.

*Monitors system values.

*Can change system settings

*Can change system settings.

DISPLAY SCREEN #

0 (Default)

1

2

3

4

*See tables at the end of this section.

36

S

ETTING

T

HE

M

ODE

D

ISPLAY

NAVIGATING THROUGH THE DISPLAY SCREENS

SCREEN

0

The home or default screen on the display. This shows the most recent fault.

SCREEN 1

To access, hold the RECALL button for 5 seconds at screen 0.

SCREEN 2

To access, hold the RECALL button for 5 seconds at screen 1.

SCREEN 3

To access, hold the RECALL button for 5 seconds at screen 2 .

SCREEN 4

To access, hold the RECALL and TEST buttons simultaneously for 5 seconds at screen 2.

To return to SCREEN 0 of the display, press the LEARN button.

Press LEARN

The first digit displays the SCREEN #.

Press LEARN

< SCREEN

0 >

Hold RECALL

< SCREEN

1 >

Hold

RECALL

Press RECALL Button to change fault code history

Press LEARN

< SCREEN 2 >

Hold

RECALL

Hold RECALL and TEST

37

S

ETTING

T

HE

M

ODE

D

ISPLAY

FAULT CODE HISTORY NAVIGATION

< SCREEN

1>

This mode will allow the user to see the six most recent system faults.

For a list of the fault codes, please see the TROUBLESHOOTING tables in this document.

< SCRE

EN 1 >

Press

RECALL

< SCREE

N 0 >

Hold RECALL

Press LEARN

The display will change to

< SCREEN 1 >.

Press RECALL to change Fault code history.

Displays most recent Fault code.

Press RECALL.

Displays 2nd most recent Fault code.

Press RECALL.

Press RECALL.

(6th most recent Fault Code)

38

S

ETTING

T

HE

M

ODE

D

ISPLAY

MONITORING MODE NAVIGATION

< SCR

EEN 2 >

This screen allows the user to monitor system variables as shown in the tables at the end of this section.

< SCREE

N 1 >

< SCREE

N 0 >

Hold RECALL Press LEARN

OFF

ON

Blink interval:

0.4 sec. On - 0.4 sec. Off

< SCREEN 2 >

Press RECALL to increase the value.

Press RECALL.

Press

RECALL

Press RECALL.

Press TEST to confirm the setting.

Press RECALL.

Press RECALL.

Item number

Display flickers at 1 second intervals.

Value

39

S

ETTING

T

HE

M

ODE

D

ISPLAY

SETTINGS MODE 1 NAVIGATION

< SCREEN 3 >

Setting Mode 1 allows the user to adjust system settings as shown in the tables at the end of this section.

< SCREEN 0 >

< SCREEN 2 >

Hold RECALL.

OFF

ON

Press LEARN.

Blink interval:


< SCREEN 3 >

Press RECALL to increase the value.

Press RECALL.

Press

RECALL.

Press RECALL.

Press TEST to change setting.

Press RECALL.

Press TEST to complete setting and return to setting mode.

40

S

ETTING

T

HE

M

ODE

D

ISPLAY

SETTINGS MODE 2

< SCREEN 4 >

Setting Mode 2 allows the user to change system settings. See table in back of this section.

< SCREEN 2 >

Hold RECALL and TEST.

< SCREEN 0 >

Press LEARN.

OFF

ON

Blink interval:


< SCREEN 4 >

Press RECALL to increase the number.

< Changing setting display >

Press RECALL.

Press

RECALL

Press RECALL.

Press TEST to change setting.

Press RECALL.

Press

RECALL.

Press RECALL.

Press RECALL.

Press TEST to complete setting and return to setting mode.

41

7-S

EGMENT

D

ISPLAY

SCREEN 0 (Display FAULT CODE)

Setting

No.

1

Contents

Fault code (present)

SCREEN 1 (Display FAULT CODES)

Setting

No.

1

2

3

4

5

6

Contents

Fault code (latest)

Fault code (2nd)

Fault code (3rd)

Fault code (4th)

Fault code (5th)

Fault code (6th)

Notes

Notes

Latest

2nd

3rd

4th

5th

6th

SCREEN 2 (MONITOR MODE)

Setting

No.

1

2

3

4

5

8

9

10

6

7

11

13

14

Contents

Compressor operation time

Operation code

Compressor Reduction Mode

% demand act % demand

Requested ID CFM

Reported ID CFM

Outdoor FAN RPM

Ta (Outdoor Air Temperature)

Td (Discharge Temperature)

Tm (Outdoor Coil Temperature)

Tl (Liquid Temperature)

Pressure Sensor

Notes

unit：hr (Multiply by 200,)

0: Stop

1. Cooling Start-up

3. Oil Return Operation

6: Cooling Operation

0:OFF,1:ON unit：%

(Cut off the decimal first place.) unit：%

(Cut off the decimal first place.) unit：CFM (Multiply by 10) unit：CFM (Multiply by 10) unit：RPM (Multiply by 10) unit：F unit：F unit：F unit：F unit：PSI

42

7-S

EGMENT

D

ISPLAY

SCREEN 3 (SETTING MODE 1)

Setting

No.

Contents

1 Cool Airflow Trim High

2 Cool Airflow Trim Int

3 Cool Airflow Trim Low

4

5

6

7

Cool Profile

Cool ON Delay

Cool OFF Delay

Dehumidification Select

0:-15%

1:-12%

2:-9%

3:-6%

4:-3%

0:-15%

1:-12%

2:-9%

3:-6%

4:-3%

0:-15%

1:-12%

2:-9%

3:-6%

4:-3%

0:A

1:B

0:5sec.

1:10sec.

0:30sec.

1:60sec.

0:ON

Setting

5:0%

6:3%

7:6%

5:0%

6:3%

7:6%

5:0%

6:3%

7:6%

2:C

2:20sec.

2:90sec.

1:OFF

8:9%

9:12%

10:15%

8:9%

9:12%

10:15%

8:9%

9:12%

10:15%

3:D

3:30sec.

3:120sec.

Installer / Serviceman Notes

SCREEN 4 (SETTING MODE 2)

Setting

No.

Contents Setting

10

12

4

7

8

9

1

2

3

13

Maximum Defrost Interval

Set Maximum Current

Vertical Rise

System Verification Test

Force Defrost Cycle

Pump Down

Charge Mode

Maximum Compressor RPS for Cooling

BOOST MODE Selection

BOOST MODE Temperature

0: 30min.

1: 60min.

2: 90min.

3: 120min.

N/A

0:Same Level

1:Outdoor Lower

2:Indoor Lower

0:ON 1:OFF

0:ON 1:OFF

0:ON 1:OFF

0:ON 1:OFF

*

0:ON 1:OFF

0:105F, 1:100F, 2:95F,

3:90F, 4:85F, 5:80F, 6:75F,

7:70F, 8:Always ON

* See service manual for detailed information.

NOTES:

• Parameters as per factory setting are highlighted in bold and underlined.

• BOOST MODE is applicable only for AVXC200**1AB or later revision.

Installer / Serviceman Notes

Future Use

43

SPLIT SYSTEMS

AIR CONDITIONING AND HEAT PUMP HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS

We strongly recommend a bi-annual maintenance checkup be performed

R

EPLACE OR

C

LEAN

F

ILTER

before the heating and cooling seasons begin by a qualified servicer.

IMPORTANT NOTE: Never operate unit without a filter installed as dust and lint will build up on internal parts resulting in loss of efficiency, equipment damage and possible fire.

An indoor air filter must be used with your comfort system. A properly maintained filter will keep the indoor coil of your comfort system clean. A dirty coil could cause poor operation and/or severe equipment damage.

Your air filter or filters could be located in your furnace, in a blower unit, or in “filter grilles” in your ceiling or walls. The installer of your air conditioner or heat pump can tell you where your filter(s) are, and how to clean or replace them.

Check your filter(s) at least once a month. When they are dirty, replace or clean as required. Disposable type filters should be replaced. Reusable type filters may be cleaned.

You may want to ask your dealer about high efficiency filters. High efficiency filters are available in both electronic and non-electronic types. These filters can do a better job of catching small airborne particles.

C

OMPRESSOR

The compressor motor is hermetically sealed and does not require additional oiling.

M

OTORS

Air must be able to flow through the outdoor unit of your comfort system. Do not construct a fence near the unit or build a deck or patio over the unit without first discussing your plans with your dealer or other qualified servicer. Restricted airflow could lead to poor operation and/or severe equipment damage.

Likewise, it is important to keep the outdoor coil clean. Dirt, leaves, or debris could also restrict the airflow. If cleaning of the outdoor coil becomes necessary, hire a qualified servicer. Inexperienced people could easily puncture the tubing in the coil. Even a small hole in the tubing could eventually cause a large loss of refrigerant. Loss of refrigerant can cause poor operation and/or severe equipment damage.

Do not use a condensing unit cover to “protect” the outdoor unit during the winter, unless you first discuss it with your dealer. Any cover used must include “breathable” fabric to avoid moisture buildup.

B

EFORE

C

ALLING

Y

OUR

S

ERVICER

• Check the thermostat to confirm that it is properly set.

• Wait 15 minutes. Some devices in the outdoor unit or in programmable thermostats will prevent compressor operation for awhile, and then reset automatically. Also, some power companies will install devices which shut off air conditioners for several minutes on hot days. If you wait several minutes, the unit may begin operation on its own.

Indoor and outdoor fan motors are permanently lubricated and do not require additional oiling.

A

LUMINUM

I

NDOOR

C

OIL

C

LEANING

(Q

UALIFIED

S

ERVICER

O

NLY

)

This unit is equipped with an aluminum tube evaporator coil. The safest way to clean the evaporator coil is to simply flush the coil with water. This cleaning practice remains as the recommended cleaning method for both copper tube and aluminum tube residential cooling coils.

An alternate cleaning method is to use one of the products listed in the technical publication TP-109 (shipped in the literature bag

with the unit) to clean the coils. The cleaners listed are the only agents deemed safe and approved for use to clean round tube aluminum coils. TP-109 is available on the web site in Partner

Link > Service Toolkit.

NOTE: Ensure coils are rinsed well after use of any chemical cleaners.

C

LEAN

O

UTSIDE

C

OIL

(Q

UALIFIED

S

ERVICER

O

NLY

)

T

O AVOID THE RISK OF EQUIPMENT DAMAGE OR FIRE

,

INSTALL

THE SAME AMPERAGE BREAKER OR FUSE AS YOU ARE

REPLACING

. I

F THE CIRCUIT BREAKER OR FUSE SHOULD OPEN

AGAIN WITHIN THIRTY DAYS

,

CONTACT A QUALIFIED SERVICER

TO CORRECT THE PROBLEM

.

I

F YOU REPEATEDLY RESET THE BREAKER OR REPLACE

THE FUSE WITHOUT HAVING THE PROBLEM CORRECTED

,

YOU RUN THE RISK OF SEVERE EQUIPMENT DAMAGE

.

• Check the electrical panel for tripped circuit breakers or failed fuses. Reset the circuit breakers or replace fuses as necessary.

• Check the disconnect switch near the indoor furnace or blower to confirm that it is closed.

• Check for obstructions on the outdoor unit . Confirm that it has not been covered on the sides or the top. Remove any obstruction that can be safely removed. If the unit is covered with dirt or debris, call a qualified servicer to clean it.

• Check for blockage of the indoor air inlets and outlets.

Confirm that they are open and have not been blocked by objects (rugs, curtains or furniture).

• Check the filter. If it is dirty, clean or replace it.

• Listen for any unusual noise(s), other than normal operating noise, that might be coming from the outdoor unit. If you hear unusual noise(s) coming from the unit, call a qualified servicer.

44

Start-up Checklist For Unitary Inverter

*Store in job file

Date: _________________________________________

Model Number: _________________________________________

Serial Number: _________________________________________

Technician: _________________________________________

Pre Start-Up

(Check each item as completed)

Verify all packaging material has been removed.

Remove all shipping brackets per installation instructions.

Verify the job site voltage agrees with the unit serial plate.

Verify condensate connection is installed per installation instructions.

Verify proper clearance around the unit for safety, service, maintenance and proper unit operation.

Verify proper weatherproofing of all ductwork, roof curbs and electrical connections.

Check gas piping for leaks.

Verify gas pressure to the unit is within the range specified on the serial plate.

Check to ensure that all fan blades and wheels are secure.

Check refrigerant piping for rubbing and leaks. Repair if necessary.

Check unit wiring to ensure it is not in contact with refrigerant piping or sharp metal edges.

Check all electrical connections and terminals. Tighten as needed.

Verify that the crankcase heaters have been energized for 24 hours.

Verify all accessories are installed and operating correctly.

Check filters and replace if necessary.

Verify the installation of the thermostat. The CTK04 is the only approved thermostat for the unitary inverter unit.

3/2016 i s a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company, L.P., Houston, TX, USA. All rights reserved.

45

ELECTRICAL

Supply Voltage

Compressor Amps

Blower Amps

Condenser Fan Amps

BLOWER EXTERNAL STATIC PRESSURE

Return Air Static Pressure

Supply Air Static Pressure

Total External Static Pressure

Air Flow

TEMPERATURES

Outdoor Air Temperature

Return Air Temperature

Cooling Supply Air Temperature

Heating Supply Air Temperature

PRESSURES

Gas Inlet Pressure

Gas Manifold Pressure

Suction Circuit

Superheat / Subcooling

Discharge Circuit

(HEAT PUMP ONLY)

Suction Circuit

Discharge Circuit

Start-up Checklist For Unitary Inverter

Start-Up

(Insert the values as each item is completed.)

L1 - L2

Fan

IN. W.C.

IN. W.C. (Low Fire)

PSIG

PSIG

PSIG

PSIG

DB

DB

DB

DB

IN. W.C.

IN. W.C.

IN. W.C.

CFM

WB

WB

WB

IN. W.C. (High Fire)

°F

°F

°F

°F

°F

Start-Up

(Fill in the blanks from the

Status Screen on the

CTK04 Thermostat)

TS: hr

MD:

Cooling

CRM: :_______

RAD: ______ %, _____ %

RAF : _____

CFM,

_____

CFM

ATOF:

______ F, _______ RPM

DCT

_______ F, _______ F

DLT

______ F, ______ F

PSDST:

______ PSI F

46

THIS PAGE LEFT INTENTIONALLY BLANK

47

NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE

Quality Makes the Difference!

All of our systems are designed and manufactured with the same high quality standards regardless of size or efficiency. We have designed these units to significantly reduce the most frequent causes of product failure. They are simple to service and forgiving to operate. We use quality materials and components. Finally, every unit is run tested before it leaves the factory. That’s why we know. . .There’s No Better Quality.

Visit our website at www.amana-hac.com for information on:

• Products

• Warranties

• Customer Services

• Parts

• Contractor Programs and Training

• Financing Options

© 2015-2016 Goodman Manufacturing Company, L.P.

5151 San Felipe St., Suite 500, Houston, TX 77056 i s a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.

48