ASPT Service Manual
Table Of Contents
- IMPORTANT INFORMATION
- PRODUCT IDENTIFICATION
- Checking Voltage
- Checking Wiring
- Checking Thermostat And Wiring
- Thermostat Wiring
- Checking Transformer And Control Circuit
- Checking Contactor And/Or Relays
- Checking Contactor Contacts
- Checking Fan Relay Contacts
- Checking Loss Of Charge Protector (Heat Pump Models)
- Checking High Pressure Control
- Checking Low Pressure Control
- Copeland Comfort Alert™ Diagnostics - 3-Wire module
- Copeland Coresense™ Diagnostics - 3-Wire module
- Checking Capacitor
- Resistance Check Using A Digital Multi-Meter
- Capacitance Check Using A Digital Multi-Meter (In Capacitance Mode)
- Testing a Run Capacitor Under Load
- Checking Outdoor Fan and Blower Motors (PSC Motors)
- Checking Fan and Blower Motor (ECM Motors)
- Checking ECM Motor Windings
- ECM CFM Adjustments MBE/AEPF
- Blower Performance Data
- Checking High Efficiency Motors
- EEM Blower Replacement
- MBR/AR*F Electronic Blower Time Delay Relay
- Checking Compressor
- Resistance Test
- Ground Test
- Unloader Test Procedure
- Operation Test
- Checking 3-Phase Scroll Compressor Rotation
- Testing Crankcase Heater (Optional Item)
- Checking Reversing Valve and Solenoid
- Testing Defrost Control
- Testing Defrost Thermostat
- Checking Heater Limit Control(s)
- Checking Heater Elements
- Electric Heater (Optional Item)
- Checking Heater Limit Control(s)
- Checking Heater Elements
- Refrigeration Repair Practice
- Leak Testing (Nitrogen or Nitrogen-Traced)
- Evacuation
- Charging
- Checking Compressor Efficiency
- Overfeeding
- Underfeeding
- Checking Superheat
- Subcooling on Expansion Valve System
- Checking Expansion Valve Operation
- Checking Restricted Liquid Line
- Overcharge Of Refrigerant
- Non-Condensables
- Compressor Burnout
- Refrigerant Piping
- Duct Static Pressures
- Single Piece Air Handler External Static
- Two Piece Air Handler External Static Pressure
- Furnace External Static Pressure
- Periodic Maintenance
PRODUCT IDENTIFICATION
14
Model/Rev
Description
ASZ140**1AA
Initial release of Amana® Brand 14 SEER Heat Pump R410A with sound blankets and
Coresense control.
ASZ140**1AB
Screw locations moved in the top panel, base pans, louvers, and control box covers.
ASZ140**1AC Horizontal style louvers.
ASZ140[18, 42-48]1AD
ASZ140[24-36, 60]1AE
New steel muffler, and suction tubes w/shock loop.
ASZ140361AF
ASZ140421AD
ASZ140[48-60]1AE
TXV & compensator replaced with flowrator & accumulator.
ASZ140[18, 30,36]1AF
ASZ140241AG
ASZ14[42, 48, 60]1AE
Sanhua (RANCO) reversing valves.
ASZ140241AF Smaller B1227315 reversing valve.
ASZ140[18,30,36]1AG
ASZ140241AH
ASZC160[42,48,60]1AF
Introduction of heat pumps with accumulators, crankcase heaters, and upgraded defrost
control.
ASZ140361BA Chassis size reduction from large to medium.
ASZ140[18, 30]1AH
ASZ140241AJ
ASZ140[42-60]1AG
Relocation of low pressure switch from liquid line to suction line as a compressor
safeguard to prevent low pressure from entering.
ASZ140[18, 30]1AJ
ASZ140241AK
ASZ140[42-60]1AH
ASZ140361BB
2 speed PSC motors replaced with single speed PSC motors.
ASZ140181AL
ASZ140241AM
ASZ140301AL
ASZ140361BC
ASZ140381AB
ASZ140[42-60]1AK
Revision made for design improvement.
ASZ14
AMANA® BRAND SPLIT Z-R410A HEAT PUMP 14 SEER
*ASZ14 CONTINUED ON THE NEXT PAGE