Amana DC4SQA Manuals

Manuals and User Guides for Amana DC4SQA. We have 1 Amana DC4SQA manual available for free PDF download: Service And Troubleshooting

Amana DC4SQA Service And Troubleshooting

Amana DC4SQA Service And Troubleshooting (60 pages)

Condensing Units and Heat Pumps With Refrigerant Blowers, Coils, & Accessories

Brand: Amana | Category: Heat Pump | Size: 4 MB

Table of Contents

Table of Contents
2
Important Information
2
Product Identification
5
Product Design
9
Condensing Unit
9
System Operation
12
Cooling Cycle
12
Defrost Cycle
12
Servicing
15
Checking Voltage
15
Checking Wiring
15
Checking Thermostat and Wiring
15
Indoor Blower Motor
15
Resistance Heaters
16
Checking Transformer and Control Circuit
16
Checking Contractor And/Or Relays
16
Checking Contactor Contacts
16
Checking Fan Relay Contacts
17
Checking High Pressure Control
17
Checking Low Pressure Control
18
Copeland Coresense™ Diagnostics - 3-Wire Module
18
Reset Switch
19
Troubleshooting Information
20
Lock Indication
22
Checking Capacitor
23
Resistance Check Using a Digital Multi-Meter
23
Check for Analog Meter
23
Capacitance Check Using a Digital Multi-Meter (in Capacitance Mode)
23
Capacitor, Start
23
Testing a Run Capacitor under Load
24
Refrigerant Detection System (Rds)
24
Checking High Efficiency Motors
26
High Voltage Connections
26
Low Voltage Connections
26
Eem Blower Replacement
27
Checking Compressor
28
Resistance Test
28
Ground Test
29
Unloader Test Procedure
29
Operation Test
30
Testing Crankcase Heater
30
Checking Reversing Valve and Solenoid
30
Troubleshooting the Reversing Valve for Electrical Failure
31
On a Reversing Valve by Pressure
31
On a Reversing Valve by Temperature
31
Testing Defrost Control
31
Testing Defrost Thermostat
31
Checking Heater Elements
32
Checking Heater Limit Control(S)
33
Checking Heater Fuse Link
33
Refrigeration Repair Practice
33
Brazing Materials
34
Standing Pressure Test
34
Leak Testing (Nitrogen or Nitrogen-Traced)
34
System Evacuation
34
Deep Vacuum Method
35
Triple Rvacuation Method
35
Charging
36
Final Charge Adjustment
37
Fixed Orfices
39
Expansion Vlave System
39
Superheat Adjustment
39
Heat Pump - Heating Cycle
40
Checking Compressor Efficiency
40
Checking Restricted Liquid Line
41
Overcharge of Refrigerant
41
Non-Condensables
41
Checking Compressor Efficiency
41
Compressor Burnout
41
Suction Line Drier Clean-Up Method
42
Refrigerant Piping
42
Duct Static Pressures
42
Periodic Maintenance
43
Electrical Controls and Wiring
44
Cleaning Aluminum Coils
44
System Service and Decommissioning
44
Labelling of Equipment
45
Troubleshooting
46
Wiring Diagrams
53

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