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Service and Troubleshooting
AVZC18 Inverter Heat Pump Condenser Units with R-410A Refrigerant
For service information related to the Bluetooth® Shared
Data Loader BTSDL01 referenced in this manual, please
refer to the installation instructions for the BTSDL01 at
www.coolcloudhvac.com/loaderuserguide
Pride and workmanship go into every product to provide
our customers with quality products. It is possible, however,
that during its lifetime a product may require service.
Products should be serviced only by a qualified service
technician who is familiar with the safety procedures
required in the repair and who is equipped with the proper
tools, parts, testing instruments and the appropriate service
manual. REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATE SERVICE MANUAL BEFORE
BEGINNING REPAIRS.
ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL,
ADJUST, SERVICE OR REPAIR(HEREINAFTER, "SERVICE")
THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD
SERVICE THE EQUIPMENT. THE MANUFACTURER WILL
NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY
DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE
PROCEDURES. IF YOU SERVICE THIS UNIT, YOU ASSUME
RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE
WHICH MAY RESULT. IN ADDITION, IN JURISDICTIONS THAT
REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIP-
MENT SPECIFIED IN THIS MANUAL, ONLY LICENSED PER-
SONNEL SHOULD SERVICE THE EQUIPMENT. IMPROPER IN-
STALLATION, 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.
Blowers, Coils, & Accessories
WARNING
Copyright © 2021 Goodman Manufacturing Company, L.P.
is a registered trademark of Maytag Corporation or its related companies and is used under license.
®
IMPORTANT INFORMATION ......................................... 2
PRODUCT IDENTIFICATION ........................................ 4
SYSTEM OPERATION ................................................... 5
SERVICING .................................................................... 9
CHECKING VOLTAGE ................................................. 9
CHECKING WIRING ..................................................... 9
CHECKING THERMOSTAT, WIRING .......................... 9
THERMOSTAT AND WIRING ....................................... 9
CIRCUIT ......................................................................... 9
CHECKING HIGH PRESSURE SWITCH .................. 10
PRESSURE SENSOR................................................. 10
CHECKING COMPRESSOR ...................................... 10
COMPRESSOR WINDING INSULATION TEST ....... 11
GROUND TEST ........................................................... 11
COIL RESISTANCE..................................................... 12
TESTING EEV COIL RESISTANCE .......................... 12
TESTING REVERSING VALVE .................................. 12
AVPEC* HEATER CONTROL ..................................... 13
NETWORK TROUBLESHOOTING ............................ 13
REFRIGERATION REPAIR PRACTICE .................... 14
NITROGEN-TRACED) ................................................ 14
EVACUATION .............................................................. 15
CHARGING .................................................................. 16
FINAL CHARGE ADJUSTMENT ................................ 16
CHECKING COMPRESSOR EFFICIENCY .............. 16
CHECKING SUBCOOLING ........................................ 17
NON-CONDENSABLES .............................................. 17
COMPRESSOR BURNOUT ....................................... 18
REFRIGERANT PIPING ............................................. 18
All rights reserved.
TABLE OF CONTENTS
RS6215003r1
July 2021
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Table of Contents
Troubleshooting
Related Manuals for Maytag Amana AVZC18
Summary of Contents for Maytag Amana AVZC18
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Page 1: Table Of Contents
MAY RESULT IN PRODUCT DAMAGE, PROPERTY DAMAGE, REFRIGERANT PIPING ..........18 PERSONAL INJURY OR DEATH. RS6215003r1 July 2021 Copyright © 2021 Goodman Manufacturing Company, L.P. is a registered trademark of Maytag Corporation or its related companies and is used under license. ® All rights reserved. -
Page 2: Important Information
IMPORTANT INFORMATION DUCT STATIC PRESSURES AND/OR STATIC PRESSURE DROP ACROSS COILS ......22 WARNING AIR HANDLER EXTERNAL STATIC ......22 COIL STATIC PRESSURE DROP ......22 To prevent the risk of property damage, personal injury, r death, do not store combustible materials or use gasoline INDOOR UNIT TROUBLESHOOTING ...... - Page 3 IMPORTANT INFORMATION NOTICE: When the outdoor unit is connected to main power, the WARNING inverter board has a small current flowing into it to be pre- pared for operation when needed. Due to this, the Control To avoid possible explosion: •...
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Page 4: Product Identification
PRODUCT IDENTIFICATION NOMENCLATURES 7,8,9 11,12 Brand Engineering * A Amana® Brand Major/ Minor Revisions * Not used for order or inventory control Product Category Electrical S Split System V Inverter Split System 1 - 208/230 V, 1 Phase, 60 Hz Unit Type Capacity X Condenser R-410A... -
Page 5: System Operation
SYSTEM OPERATION This section gives a basic description of heat pump con- Heat is continually being transferred to the cool fins and denser unit operation, its various components and their ba- tubes of the indoor evaporator coil by the warm system air. sic operation. - Page 6 SYSTEM OPERATION SYSTEM STARTUP TEST DEHUMIDIFICATION A system verification test is now required to check the NOTE: For regions with high humidity, it is strongly recom- equipment settings and functionality. mend to use a thermostat with humidity sensor and dehu- midification terminal.
- Page 7 SYSTEM OPERATION COMFORTBRIDGE SYSTEM ADVANCED FEATURES SENSOR DATA The ComfortBridge system permits access to system in- The following sensor values will be displayed: formation, advanced set-up features, and advanced diag- • Outdoor Temperature nostic/troubleshooting features via the control board push •...
- Page 8 SYSTEM OPERATION COOLING CYCLE Stop HP/LP HP/LP Valve (Gas) Reversing Valve ID HP/LP OD HP/LP Sensor Sensor Check Valve Thermistor Thermistor Access Tube Thermistor Thermistor Motor Motor Thermistor Comp Thermistor SubACC Thermistor Check Valve Thermistor Filter Stop Valve Filter Filter Filter Dryer (Liquid) Filter...
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Page 9: Servicing
SERVICING CHECKING VOLTAGE THERMOSTAT AND WIRING 1. Remove outer case, control panel cover, etc., from WARNING unit being tested. Line voltage now present. With power ON: WARNING With power ON, thermostat calling for cooling/heating. 1. Use a voltmeter to check for 24 volt at thermostat Line voltage now present. -
Page 10: Checking High Pressure Switch
SERVICING 1. Remove control panel cover, or etc., to gain access to CHECKING INDOOR AND OUTDOOR HI/LOW PRES- transformer. SURE SENSOR With power ON: The HI/LOW pressure sensor senses the suction pressure in cooling mode, and the discharge pressure in heating mode. WARNING Follow the following sequence to check the pressure sensor. -
Page 11: Compressor Winding Insulation Test
SERVICING If the compressor terminal PROTECTIVE COVER and Unpainted gasket (if required) are not properly in place and secured, Refrigerant Compressor Piping there is a remote possibility if a terminal vents, that the Terminal vaporous and liquid discharge can be ignited, spouting flames several feet, causing potentially severe or fatal injury to anyone in its path. -
Page 12: Testing Temperature Sensors And Eev Coil Resistance
SERVICING TESTING EEV COIL RESISTANCE To check the resistance of the EEV coil, first disconnect EEV cable from the Control board. Make measurements of resistance between the connector pins, and then make sure the resistance falls in the range of 40 to 50Ω. WARNING Damage can occur to the glass embedded terminals if the leads are not properly removed. -
Page 13: Avpec* Heater Control
SERVICING The true suction should be the same as the suction line TROUBLESHOOTING after the valve. If there is a 4-degree difference, valve is leaking. When stuck in the mid-position, part of the dis- MOTOR CONTROL CIRCUITS charge gas from the compressor is directed back to the WARNING suction side, resulting in excessively high suction pressure. -
Page 14: Network Troubleshooting
SERVICING NETWORK TROUBLESHOOTING REFRIGERATION REPAIR PRACTICE Communications is achieved by taking the difference DANGER between a positive dc signal and a negative dc signal. The positive dc signal is termed “data 1” or “1”. Data 1 is positive Always remove the refrigerant charge in a proper manner with respect to ground (or common). -
Page 15: Leak Testing (Nitrogen Or Nitrogen-Traced)
SERVICING LEAK TESTING (NITROGEN OR NITROGEN-TRACED) IMPORTANT NOTE: Because of the potential damage to compressors, do not allow suction pressure at service valve to drop below 5 PSIG when pumping unit system down for WARNING repair. Outdoor section, depending on line set length and amount of charge in system, may not be able to hold the To avoid the risk of fire or explosion, never use oxygen, entire system charge. -
Page 16: Charging
SERVICING 2. Start the vacuum pump and open the shut off valve to CHARGING the high vacuum gauge manifold only. After the com- pound gauge (low side) has dropped to approximately WARNING 29 inches of vacuum, open the valve to the vacuum micron gauge. -
Page 17: Final Charge Adjustment
SERVICING FINAL CHARGE ADJUSTMENT 2. Install a high side pressure gauge on the high side (liquid) service valve at the front of the unit. The outdoor temperature must be 65°F to 105°F. If out- 3. Record the gauge pressure and the temperature of door ambient temperature is out of range, charge defined the line. -
Page 18: Non-Condensables
SERVICING If a compressor is suspected of being burned-out, attach SUBCOOLING ADJUSTMENT ON EEV APPLICATIONS a refrigerant hose to the liquid line dill valve and properly NOTE: Subcooling information is valid only while the unit is remove and dispose of the refrigerant. operating at 100% capacity or 100% compressor speed in CHARGE MODE. - Page 19 SERVICING Hanger Wall Liquid Line Stud Strapped to Suction Line Liquid Line Metal Sleeve Suction Line Wrapped in Armaflex ® FIGURE 1-1. INSTALLATION OF REFRIGERATION PIPING FROM VERTICAL TO HORIZONTAL IMPORTANT - Refrigerant lines must not touch wall. Suction Line Liquid Line Outside Wall Wood Block...
- Page 20 SERVICING If hanging line set from a joist or rafter, use metal strapping Wire Tie or heavy nylon wire tires (around suction line only) that are securely anchored. 8’ Floor Joist or T ape or Wire Tie Roof Rafter 8’ Floor Joist or Roof Rafter Metal Sleeve Strapping placed...
- Page 21 SERVICING Oil Trap Construction LONG RADIUS STREET ELL 45° 45° STREET SHORT RADIUS STREET ELL SECTION 4. OUTDOOR UNIT IS BELOW THE INDOOR UNIT 1. The maximum elevation (vertical) difference between the outdoor unit and the indoor unit is 90 feet. 2.
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Page 22: Duct Static Pressures And/Or Static Pressure Drop Across Coils
SERVICING DUCT STATIC PRESSURES AND/OR STATIC Checking Static Pressure Single Piece Air Handler PRESSURE DROP ACROSS COILS This minimum and maximum allowable duct static pres- sure for the indoor sections are found in the specifications section. Tables are also provided for each coil, listing quantity of air (CFM) versus static pressure drop across the coil. -
Page 23: Indoor Unit Troubleshooting
SERVICING INDOOR UNIT TROUBLESHOOTING WARNING HIGH VOLTAGE Disconnect ALL power before servicing or in- stalling this unit. Multiple power sources may be present. Failure to do so may cause proper- ty damage, personal injury or death. AUX ALARM FH1 F1U FH2 FH3 FH4 J9 J16 INDOOR UNIT... - Page 24 SERVICING TROUBLESHOOTING FAULT CODE HISTORY ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS The heat pump’s diagnostics menu provides access to the most recent faults. The six most recent faults can be ac- NOTE: Discharge body’s static electricity before touching unit. cessed through the control board seven segment displays An electrostatic can adversely affect electrical components.
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Page 25: Diagnostic Codes
SERVICING DIAGNOSTIC CODES 7 SEGMENT LED DESCRIPTION OF CONDITION ERROR MESSAGE DISPLAY Normal Operation NO HTR KIT INSTALLED - SYSTEM CALLING FOR AUXILIARY HEAT (Minor Error Code) (No Display) HEATER KIT DIP SWITCHES NOT SET PROPERLY Check Heater Kit Dip Switches FUSE OPEN BLOWN FUSE AUXILIARY SWITCH OPEN... -
Page 26: Air Handler Troubleshooting Matrix
SERVICING Air Handler Troubleshooting Matrix Diagnostic Symptoms of Abnormal / Status Fault Description Possible Causes Corrective Actions Operation LED Codes Improper low voltage wiring Locate and correct improper low between the indoor and voltage wiring Issue Communication error outdoor unit No outdoor unit operations with outdoor unit Identify reason outdoor control... - Page 27 SERVICING Air Handler Troubleshooting Matrix (Continued) Diagnostic / Status Symptoms of Abnormal Operation Fault Description Possible Causes Corrective Actions LED Codes Motor operational Blower Motor Operating in Power Power fluctuation Replace motor parameters exceeded Blower Motor Current Trip or Lost Motor will not rotate Excessive motor current draw Replace motor...
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Page 28: Air Handler Display
SERVICING Air Handler Display LED Display Menu Description View 6 most recent fault codes and Clear Fault Codes if desired (furnace) Restart communications between the indoor and outdoor unit. Control Firmware Revision Number Control Shared Data Revision Number Constant Fan Speed as percent of maximum airflow. Default = 30% Electric Heater Kit Wattage (kW) Electric Heat Off Delay (seconds) Electric Heat On Delay (seconds) - Page 29 SERVICING Air Handler Display (Continued) LED Display Menu Description View 6 most recent fault codes and Clear Fault Codes if desired (outdoor communicating units) Menu is enabled if the menu is set to 6. Select the target time the system will attempt to ...
- Page 30 SERVICING ADVANCED USER MENU COOL SETUP SUBMENU ITEM USER MODIFIABLE OPTIONS COMMENTS CL Reset YES or NO Selecting to default factory setting. Cool Airflow Trim Hi (C TR H) -15% to +15% in 3% increments Selects the cooling airflow trim amount. Cool Airflow Trim Int (C TR I) -15% to +15% in 3% increments Selects the cooling airflow trim amount.
- Page 31 SERVICING EMERGENCY MODE FOR EEV APPLICABLE 1. HEATING EMERGENCY MODE INDOOR UNIT Emergency Heating mode is to be used when communica- WARNING tion between the indoor unit and thermostat is not func- tioning properly. This mode will run the electric heat strips independently of any thermostat in one of two modes: High HIGH VOLTAGE Heat Level or Low Heat Level.
- Page 32 SERVICING Upon start up in emergency mode the circuit board may display an “Ed” error. This is an indication that the DIP switches on the control board need to be configured in accordance with the Electric Heating Airflow Table. Configuring the DIP switches to the unit will clear the error code.
- Page 33 SERVICING 2. COOLING EMERGENCY MODE NOTE: Set indoor DS-4 (Indoor fan setting) and DS-6 (In- door emergency mode enable) before setting outdoor DS-2 Cooling emergency mode is to be used when communica- dip switch settings. Otherwise, the compressor may be tion between the indoor and outdoor units is not functioning damaged in operation.
- Page 34 SERVICING Dipswitch Default Factory Se�ngs Switch # Se�ng Func�on No Use No Use ID DS-1 No Use No Use No Use No Use ID DS-2 No Use No Use Heater Kit Selec�on in Emergency Mode Heater Kit Selec�on in Emergency Mode ID DS-3 Heater Kit Selec�on in Emergency Mode Heater Kit Selec�on in Emergency Mode...
- Page 35 SERVICING SETTING THE MODE DISPLAY MODE DISPLAY INTRODUCTION A 3-digit display is provided on the Control board 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.
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Page 36: Setting The Mode Display
SERVICING SETTING THE MODE DISPLAY 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. - Page 37 SERVICING SETTING THE MODE DISPLAY 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. <...
- Page 38 SERVICING SETTING THE MODE DISPLAY 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 >...
- Page 39 SERVICING SETTING THE MODE DISPLAY 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: <...
- Page 40 SERVICING SETTING THE MODE DISPLAY 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 <...
- Page 41 SERVICING 7-SEGMENT DISPLAY 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...
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Page 42: Segment Display
SERVICING 7-SEGMENT DISPLAY SCREEN 3 (SETTING MODE 1) Setting Contents Setting Notes 0:-15% 6:3% 1:-12% 7:6% 2:-9% 8:9% Cool Airflow Trim High 3:-6% 9:12% 4:-3% 10:15% 5:0% 0:-15% 6:3% 1:-12% 7:6% 2:-9% 8:9% Cool Airflow Trim Int 3:-6% 9:12% 4:-3% 10:15% 5:0% 0:-15%... - Page 43 SERVICING 7-SEGMENT DISPLAY SCREEN 4 (SETTING MODE 2) Setting Contents Setting Notes 0: 30min. 1: 60min. Maximum Defrost Interval 2: 90min. 3: 120min. Set Maximum Current Future Use 0:Same Level Vertical Rise 1:Outdoor Lower 2:Indoor Lower System Verification Test 0:ON 1:OFF Force Defrost Cycle 0:ON...
- Page 44 TROUBLESHOOTING 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 ID EEV coil failure ID EEV failure...
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Page 45: Troubleshooting
TROUBLESHOOTING 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 ID EEV coil failure ID EEV failure... - Page 46 TROUBLESHOOTING ClimateTalk PCB LED Transmitted ClimateTalk t l u i t c Fault Code Display Message High electrical noise OD CTRL FAIL1 Indicates a general memory error. Replace control board if necessary Faulty control board Blocked/restricted condenser coil and/or Check and clean condenser coil and/or lines lines Check the opening of stop valve, should be full open;...
- Page 47 TROUBLESHOOTING OUTDOOR UNIT- ERROR CODES 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 ●...
- Page 48 TROUBLESHOOTING OUTDOOR UNIT- ERROR CODES 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 HIGH CURRENT Board detected a high current condition.
- Page 49 TROUBLESHOOTING OUTDOOR UNIT- ERROR CODES ClimateTalk PCB LED Transmitted ClimateTalk Thermostat Fault Probable Causes Corrective Actions Fault Code Display Message This error indicates the equipment is experiencing frequent low discharge ● Check the connection to thermistors; Repair/replace if ● Thermistors inoperable or improperly superheat faults.
- Page 50 TROUBLESHOOTING OUTDOOR UNIT NETWORK TROUBLESHOOTING The ComfortNet™ system is a fully communicating system, constituting a network. Occasionally the need to trouble- Communications is achieved by taking the difference shoot the network may arise. The integrated control module between a positive dc signal and a negative dc signal. The has some on-board tools that can be used to troubleshoot positive dc signal is termed “data 1”...
- Page 51 TROUBLESHOOTING THERMISTOR RESISTANCE VALUE Tm : Coil TI : Liquid Tb : Defrost Tl : Liquid Td : Discharge Ta : Ambient Tgi: Indoor Gas Tli: Indoor Liquid Thermistor Thermistor Thermistor Thermistor TEMP TEMP Volts Volts Volts Volts Resistance Resistance Resistance Resistance ℃...
- Page 52 TROUBLESHOOTING PRESSURE TEMPERATURE R-410A Pressure vs. Temperature Chart PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F -37.7 37.8 74.3 100.2 420.0 120.7 137.6 -34.7 38.7 74.9 100.7 422.0 121.0 137.9 -32.0 39.5 75.5 101.1 424.0 121.4 138.3 -29.4 40.5...
- Page 53 TROUBLESHOOTING Required Liquid Line Temperature LIQUID PRESSURE REQUIRED SUBCOOLING TEMPERATURE (°F) AT SERVICE VALVE (PSIG)
- Page 54 TROUBLESHOOTING INSTALL THE ELECTRICAL BOARD WARNING When working on a service port, ensure that no refrigerant and/or compressor oil is sprayed onto the electrical board. HIGH VOLTAGE This could damage the board’s functionality. Disconnect ALL power before servicing or in- 1.
- Page 55 TROUBLESHOOTING 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 56 TROUBLESHOOTING 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...
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Page 57: Wiring Diagrams
WIRING DIAGRAM AVZC180241**, AVZC180361**, AVZC180481**, AVZC180601** COIL CIRCUIT DEFROST LIQUID LINE DISCHARGE LINE Wiring is subject to change. Always refer to wiring diagram on the unit for the most up to date wiring. - Page 58 WIRING DIAGRAM (AVPEC A* Revision) 24V THERMOSTAT CONNECTIONS RAM MONITOR FLASH WRITER SHARE DATA Wiring is subject to change. Always refer to wiring diagram on the unit for the most up to date wiring.
- Page 59 WIRING DIAGRAM (AVPEC B* Revision) HIGH VOLTAGE! ISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT ULTIPLE POWER SOURCES MAY BE PRESENT AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH 208/230 (SEE NOTE 4) GROUND LUG HEATER KIT (SEE NOTE 7) GRND...
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Page 60: Accessories
ACCESSORIES AV**PEC HEATER KIT MODELS AVPEC25B14A* AVPEC37C14A* AVPEC59D14A* AVPEC61D14A* *Revision level that may or may not be designated. NOTE: Airflow selection should meet the minimum requirements as mentioned in the air handler Installation instructions. For heater kit installation, it is important to set the capacity of the electric heater at Set-up menu on the thermostat and DIP switch on indoor unit control board. -
Page 61: Checking Heater Limit Control(S) (Optional Electric Heaters)
ACCESSORIES CHECKING HEATER LIMIT CONTROL(S) (OPTIONAL The system CFM can be determined by measuring the ELECTRIC HEATERS) static pressure external to the unit. The installation manual supplied with the blower coil, or the blower performance Each individual heater element is protected with an auto- table in the service manual, shows the CFM for the static matic rest limit control connected in series with each ele- measured. -
Page 62: Checking Heater Fuse Link (Optional Electric Heaters)
ACCESSORIES CHECKING HEATER FUSE LINK HEAT KIT NOMINAL kW (OPTIONAL ELECTRIC HEATERS) 19/20 Each individual heater element is protected with a one time 1000 fuse link which is connected in series with the element. The 1200 fuse link will open at approximately 333°. 1400 1600 WARNING... - Page 63 GOODMAN BRAND ® AMANA BRAND ® is a registered trademark of Maytag Corporation or its related companies and is used under license. ® All rights reserved. Copyright © 2021 Goodman Manufacturing Company, L.P.