Amana AVZC20 Installation & Service Reference
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Amana AVZC20 Installation & Service Reference

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HEAT PUMP UNIT
AVZC20 HEAT PUMP
INSTALLATION & SERVICE REFERENCE

Index

I
S
I
MPORTANT
AFETY
NSTRUCTIONS
S
I
............................................................ 2
HIPPING
NSPECTION
C
& R
........................................................ 2
ODES
EGULATIONS
F
............................................................................ 2
EATURES
I
C
NSTALLATION
LEARANCES
R
I
........................................................ 3
OOFTOP
NSTALLATIONS
S
R
H
AFE
EFRIGERANT
ANDLING
R
L
.............................................................. 3
EFRIGERANT
INES
R
L
C
EFRIGERANT
INE
ONNECTIONS
L
T
(N
EAK
ESTING
ITROGEN OR
S
S
-
P
YSTEM
TART
UP
ROCEDURE
E
C
LECTRICAL
ONNECTIONS
H
P
A
F
EAT
UMP
DVANCED
EATURE
W
D
............................................................... 25
IRING
IAGRAM
IOA-4013C
8/2016
.......................................... 1
.................................................... 2
............................................... 3
........................................... 5
N
-T
) ................... 5
ITROGEN
RACED
.............................................. 5
.................................................... 6
M
............................... 22
ENU
"IMPORTANT – T
HIS PRODUCT HAS BEEN DESIGNED AND MANUFACTURED TO MEET
ENERGY EFFICIENCY WHEN MATCHED WITH APPROPRIATE COIL COMPONENTS
AND PROPER AIR FLOW ARE CRITICAL TO ACHIEVE RATED CAPACITY AND EFFICIENCY
'
FOLLOW THE MANUFACTURER
S REFRIGERANT CHARGING AND AIR FLOW INSTRUCTIONS
CHARGE AND AIRFLOW MAY REDUCE ENERGY EFFICIENCY AND SHORTEN EQUIPMENT LIFE
All information contained herein is subject to change without notice.
© 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.
C
........................................................................ 28
APACITOR
T
ROUBLESHOOTING
S
T
M
ETTING
HE
7-S
D
EGMENT
ISPLAY
S
-
C
TART
UP
HECKLIST
I
MPORTANT
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 sym-
bols. Failure to heed safety information increases the risk of
personal injury, property damage, and/or product damage.
HIGH VOLTAGE !
D
ALL
ISCONNECT
M
ULTIPLE POWER SOURCES MAY BE PRESENT
TO DO SO MAY CAUSE PROPERTY DAMAGE
INJURY OR DEATH
O
NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL
(
REPAIR
HEREINAFTER
MANUAL SHOULD SERVICE THE EQUIPMENT
BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM
IMPROPER SERVICE OR SERVICE PROCEDURES
ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY
. I
RESULT
N ADDITION
LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL
LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT
,
INSTALLATION
ADJUSTMENT
SPECIFIED IN THIS MANUAL
REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER
TRAINING MAY RESULT IN PRODUCT DAMAGE
INJURY OR DEATH
. H
OWEVER
. I
NSTALLATION OF THIS PRODUCT SHOULD
www.amana-hac.com
.............................................................. 33
D
............................................... 38
ODE
ISPLAY
........................................................... 44
.......................................................... 47
S
I
AFETY
NSTRUCTIONS
WARNING
.
POWER BEFORE SERVICING
. F
,
PERSONAL
.
, "
")
SERVICE
THE EQUIPMENT SPECIFIED IN THIS
. T
HE MANUFACTURER WILL NOT
. I
F YOU SERVICE THIS UNIT
,
IN JURISDICTIONS THAT REQUIRE ONE OR MORE
,
SERVICING OR REPAIR OF THE EQUIPMENT
,
OR ATTEMPTING TO INSTALL
,
PROPERTY DAMAGE
.
ENERGY STAR
CRITERIA FOR
,
PROPER REFRIGERANT CHARGE
. F
AILURE TO CONFIRM PROPER
."
AILURE
,
,
ADJUST
SERVICE OR
,
YOU
,
ONLY
. I
MPROPER
,
,
ADJUST
SERVICE OR
,
PERSONAL

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  • Page 1 HEAT PUMP UNIT ................ 28 APACITOR .............. 33 ROUBLESHOOTING AVZC20 HEAT PUMP ..........38 ETTING ISPLAY INSTALLATION & SERVICE REFERENCE ............44 EGMENT ISPLAY ............47 TART HECKLIST MPORTANT AFETY NSTRUCTIONS The following symbols and labels are used throughout this manual to indicate immediate or potential safety hazards.

  • Page 2: F Eatures

    Specifica- ® tion sheets can be found at www.amana-hac.com for Amana Another important consideration in selecting a location for the brand products. Within the website, please select the residen- unit(s) is the angle to obstructions.
  • Page 3 that will not shift or settle. To reduce the possibility of sound WARNING transmission, the foundation slab should not be in contact with or be an integral part of the building foundation. Care should be O AVOID POSSIBLE EXPLOSION USE ONLY RETURNABLE taken to ensure the unit is installed away from noise sensitive DISPOSABLE SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM...

  • Page 4: R Efrigerant L Ines

    mode and/or if the temperature inside the conditioned space may Insulation is necessary to prevent condensation from forming reach a temperature lower than ambient in heating mode. Never and dropping from the gas line. Armflex or satisfactory equiva- attach a liquid line to any uninsulated potion of the gas line. lent with 3/8”...

  • Page 5: R Efrigerant L Ine C Onnections

    Do NOT make final refrigerant line connection until plugs are RECOMMENDED removed from refrigerant tubing. INTERCONNECTING TUBING (Ft) 0 - 250' Equivalent Line Set Length ESTING ITROGEN OR ITROGEN RACED Heat Pump Line Type WARNING Unit & Line Diameter (In. OD) O AVOID THE RISK OF FIRE OR EXPLOSION NEVER USE OXYGEN HIGH...
  • Page 6 LECTRICAL ONNECTIONS CAUTION AHRI SE REFRIGERANT CERTIFIED TO STANDARDS SED REFRIGERANT WARNING MAY CAUSE COMPRESSOR DAMAGE IS NOT COVERED UNDER WARRANTY OST PORTABLE MACHINES CANNOT CLEAN USED HIGH VOLTAGE! AHRI REFRIGERANT TO MEET STANDARDS ISCONNECT POWER BEFORE SERVICING ULTIPLE POWER SOURCES MAY BE PRESENT AILURE TART ROCEDURE...
  • Page 7 NOTICE OTAL EFRIGERANT + (0.6 . * A ACTORY HARGE DDITIONAL CTUAL The following table shows refrigerant amounts for every 5 feet of line. Unit Tonnage 2-Ton 3-Ton 4-Ton 5-Ton Actual Line Set Length (ft.) Refrigerant (Oz.) 15 (Factory Charge) Voltage Ports NOTE: The communicating thermostat is able to search and iden- tify the indoor and outdoor units when power is applied to the...
  • Page 8 ATTENTION INSTALLER - IMPORTANT NOTICE! Please read carefully before installing this unit. • For AVZC20, do not install the 24 Volt Transformer that is included with the CTK04 Thermostat in the Heat Pump Unit; it is not needed. • Do not attach any wires to the R & C Terminals on the Heat Pump Unit, as they are not needed for inverter unit setup.
  • Page 9 3. S YSTEM TART NOTICE N INITIAL POWER START THE OUTDOOR UNIT WILL DISPLAY CODE E11, SYSTEM SIGNALING THAT INITIAL TEST MUST BE RUN OLLOW ™ OMFORT SETUP SCREEN TO ENTER APPLICATION UNIQUE INFORMATION OMFORT ET THERMOSTAT MANUAL FOR DETAILED INFORMATION A system test is now required to check the equipment settings and functionality.
  • Page 10 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.
  • Page 11 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.
  • Page 12 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.
  • Page 13 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). 4. Select YES to continue. 5. Select HEAT PUMP. 6. Select MAINTENANCE.
  • Page 14 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 or heating mode depending on the mode thermostat is set at COOL or HEAT, or stop if the thermostat is set for FAN only mode.) If charging is not complete after 1 hour, repeat 7.
  • Page 15 e. If subcooling and superheat are high, adjust the TXV 5. A DJUST EFRIGERANT LEVEL valve to 7 to 9°F superheat, then check subcooling. Using service equipment, add or recover refrigerant according to f. If subcooling is high and superheat is 7 to 9°F, remove the calculation in Step 1.
  • Page 16 Backup heat lockout temperature will enable auxiliary/sec- SATURATED SUCTION PRESSURE SATURATED LIQUID PRESSURE ondary heating to be turned on when outdoor temperature is TEMPERATURE CHART TEMPERATURE CHART much higher than indoor temperature, compressor might stop SUCTION PRESSURE R-410A LIQUID PRESSURE R-410A operating under this circumstance.
  • Page 17 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). 4. Select YES to continue. 5. Select HEAT PUMP. 6. Select SYS SETUP. COOL SET-UP...
  • Page 18 7. BOOST MD turns BOOST MODE OFF or ON. BOOST MODE is ON by default..Heat Pump > SYS SETUP > BOOST MD 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.
  • Page 19 Once satisfied with BOOST MODE adjustments, navigate to the HOME screen by selecting the Previous Menu button three times then selecting HOME. DEHUMIDIFICATION 5. Select View / Edit Current Setup. The thermostat reads the indoor humidity level from the CTK04 6.
  • Page 20 ™ S OMFORT YSTEM TATUS VERVIEW This menu displays information about the systems current status. A ComfortNet inverter heating and air conditioning system uses This menu can be utilized to confirm correct functionality of the an indoor unit, outdoor unit and thermostat which digitally com- equipment and for troubleshooting purposes.
  • Page 21 NOTE: Oil Return Mode: In order to properly return oil to the compressor, compressor speed may periodically adjust to assist oil circulation. QUIPMENT Airflow Tables The mandatory system verification test is enabled from this menu, which enables a functional check of the equipment, in addition ALUES to ensuring proper stop valve position.
  • Page 22 Displays the pressure sensor reading which is taken slightly upstream of the suction accumulator. * Only for AVZC200**1AB or later revision. ATPRM is shown in AVZC200**1AA revision. ** Only for AVZC20**1AB or later revision. PSD is shown in AVZC200**1AA revision.
  • Page 23 DVANCED EATURE SYSTEM SETUP (SYS SETUP) SUBMENU ITEM USER MODIFIABLE OPTIONS COMMENTS Reset System Setup Options to Factory NO or YES Selecting "YES" resets this menu to factory default settings. Defaults SET MAX CURRENT Future use. If the outdoor & indoor units are within +/- 15 ft. vertical distance, Same Level, Outdoor Lower, or select SAME LEVEL.
  • Page 24 DVANCED EATURE COOL SETUP SUBMENU ITEM USER MODIFIABLE OPTIONS COMMENTS CL Reset YES or NO Selecting to default factory setting. Cool Airflow Trim Hi -15% to +15% in 3% increments Selects the cooling airflow trim amount. Cool Airflow Trim Int -15% to +15% in 3% increments Selects the cooling airflow trim amount.
  • Page 25 AVZC200241** - 2 T IRING IAGRAM Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 26 AVZC200361**; AVZC200481** - 3 - 4 T IRING IAGRAM Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 27 - 5 T AVZC200601** IRING IAGRAM Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

  • Page 28: C Apacitor

    APACITOR WARNING VOID CONTACT WITH THE CHARGED AREA •N EVER TOUCH THE CHARGED AREA BEFORE CONFIRMING THAT THE RESIDUAL VOLTAGE IS VOLTS OR LESS 1. S HUT DOWN THE POWER AND LEAVE THE CONTROL BOX FOR MINUTES 2. M AKE SURE TO TOUCH THE ARTH GROUND TERMINAL TO RELEASE THE STATIC ELECTRICITY FROM YOUR BODY TO PREVENT FAILURE OF THE...
  • Page 29 APACITOR WARNING VOID CONTACT WITH THE CHARGED AREA •N EVER TOUCH THE CHARGED AREA BEFORE CONFIRMING THAT THE RESIDUAL VOLTAGE IS VOLTS OR LESS 1. S HUT DOWN THE POWER AND LEAVE THE CONTROL BOX FOR MINUTES 2. M AKE SURE TO TOUCH THE ARTH GROUND TERMINAL TO RELEASE THE STATIC ELECTRICITY FROM YOUR BODY TO PREVENT FAILURE OF THE...
  • Page 30 APACITOR WARNING VOID CONTACT WITH THE CHARGED AREA •N EVER TOUCH THE CHARGED AREA BEFORE CONFIRMING THAT THE RESIDUAL VOLTAGE IS VOLTS OR LESS 1. S HUT DOWN THE POWER AND LEAVE THE CONTROL BOX FOR MINUTES 2. M AKE SURE TO TOUCH THE ARTH GROUND TERMINAL TO RELEASE THE STATIC ELECTRICITY FROM YOUR BODY TO PREVENT FAILURE OF THE...
  • Page 31 HEATING 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 –...
  • Page 32 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 –...

  • Page 33: T Roubleshooting

    ROUBLESHOOTING ClimateTalk PCB LED Transmitted ClimateTalk Thermostat Fault Probable Causes Corrective Actions Fault Code Display Message ● High electrical noise Indicates a general memory error. ● Replace control board if necessary OD CTRL FAIL1 ● Faulty control board ● Blocked/restricted condenser coil and/or ●...
  • Page 34 ROUBLESHOOTING ClimateTalk PCB LED Transmitted ClimateTalk Thermostat Fault Probable Causes Corrective Actions Fault Code Display Message ● Discharge thermistor inoperable or This error indicates the equipment is improperly connected ● Check discharge thermistor resistance and experiencing frequent high discharge ● Discharge thermistor is put on incorrect connections;...
  • Page 35 ROUBLESHOOTING ClimateTalk PCB LED Transmitted ClimateTalk Thermostat Fault Probable Causes Corrective Actions Fault Code Display Message ● Check installation clearances. ● Short circuit condition ● Check the opening of stop valve, should be full open; ● Stop valve not completely open Repair/replace if needed Board detected a high current condition.

  • Page 36: Menu,

    ROUBLESHOOTING ClimateTalk PCB LED Transmitted ClimateTalk Thermostat Fault Probable Causes Corrective Actions Fault Code Display Message This error indicates the equipment is ● Check and clean grille of any debris experiencing frequent outdoor control ● Obstruction in fan rotation ● Check wiring from outdoor fan motor to control board; board and/or motor faults.
  • Page 37 ROUBLESHOOTING The ComfortNet™ system is a fully communicating system, con- ETWORK ROUBLESHOOTING stituting a network. Occasionally the need to troubleshoot the Communications is achieved by taking the difference between a network may arise. The integrated control module has some on- positive dc signal and a negative dc signal.
  • Page 38 ETTING 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.
  • Page 39 ETTING ISPLAY NAVIGATING THROUGH THE DISPLAY SCREENS SCREEN 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...
  • Page 40 ETTING 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. < SCREEN 0 > Hold RECALL Press LEARN <...
  • Page 41 ETTING ISPLAY MONITORING MODE NAVIGATION < SCREEN 0 > < SCR EEN 2 > This screen allows the user to monitor system variables as shown in the tables at the end of this section. Blink interval: < SCREEN 1 > 0.4 sec.
  • Page 42 ETTING ISPLAY SETTINGS MODE 1 NAVIGATION < SCREEN 3 > < SCREEN 0 > Setting Mode 1 allows the user to adjust system settings as shown in the tables at the end of this section. Blink interval: < SCREEN 2 > 0.4 sec.
  • Page 43 ETTING ISPLAY SETTINGS MODE 2 < SCREEN 4 > < SCREEN 0 > Setting Mode 2 allows the user to change system settings. See table in back of this section. Blink interval: 0.4 sec. On - 0.4 sec. Off < SCREEN 2 > Press LEARN.
  • Page 44 EGMENT ISPLAY SCREEN 0 (Display FAULT CODE) Setting Contents Notes Fault code (present) SCREEN 1 (Display FAULT CODES) Setting Contents Notes Fault code (latest) Latest Fault code (2nd) Fault code (3rd) Fault code (4th) Fault code (5th) Fault code (6th) SCREEN 2 (MONITOR MODE) Setting Contents...
  • Page 45 EGMENT ISPLAY SCREEN 3 (SETTING MODE 1) Setting Setting Contents Installer / Serviceman Notes 0:-15% 8:9% 5:0% 1:-12% 6:3% 9:12% 2:-9% 10:15% 7:6% Cool Airflow Trim High 3:-6% 4:-3% 0:-15% 8:9% 5:0% 1:-12% 6:3% 9:12% 2:-9% 10:15% 7:6% Cool Airflow Trim Int 3:-6% 4:-3% 0:-15%...
  • Page 46 SPLIT SYSTEMS AIR CONDITIONING AND HEAT PUMP HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS We strongly recommend a bi-annual maintenance checkup be performed before the heating and cooling seasons begin by a qualified servicer. EPLACE OR LEAN ILTER LEAN UTSIDE UALIFIED ERVICER 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.
  • Page 47 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.
  • Page 48 Start-up Checklist For Unitary Inverter Start-Up (Insert the values as each item is completed.) ELECTRICAL Supply Voltage L1 - L2 Compressor Amps Blower Amps Condenser Fan Amps BLOWER EXTERNAL STATIC PRESSURE Return Air Static Pressure IN. W.C. Supply Air Static Pressure IN.

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