Amana AVXC20 Series, Service Instructions Manual

Page: 14 / 82

14
HIGH VOLTAGE!
Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to
do so may cause property damage, personal injury or death.
TABLE OF CONTENTS
SERVICING TABLE OF CONTENTS
S-1 CHECKING VOLTAGE .................................................. 15
S-2 CHECKING WIRING ................................................... 15
S-3 CHECKING THERMOSTAT AND WIRING ..................... 15
S-3A THERMOSTAT AND WIRING ....................................... 15
S-3E CTK0*** COMFORTNET TM THERMOSTAT ................... 16
S
YSTEM
S
TART
-
UP
T
EST
....................................................... 17
S
ET
T
HERMOSTAT TO
CHARGE MODE ................................. 20
S
ET
T
HERMOSTAT TO
A
DJUST
M
AXIMUM
C
OMPRESSOR
S
PEED
........ 23
S
ET
T
HERMOSTAT TO
A
DJUST
I
NDOOR
A
IR
CFM
TRIM
................. 25
S
ET
T
HERMOSTAT TO
A
DJUST
INDOOR AIRFLOW PROFILE,
COOL ON DELAY
AND
COOL OFF DELAY ............. 28
S
ET
T
HERMOSTAT TO
EQUIP TEST ....................................... 29
S
ET
T
HERMOSTAT TO
PUMP DOWN .................................. 31
S
ET
7-S
EGMENT
M
ODE
D
ISPLAY TO
PUMP DOWN ............... 34
S
ET
T
HERMOSTAT TO
C
HECK
SYSTEM STATUS ........................ 35
S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT .. 33
S-12 CHECKING HIGH PRESSURE CONTROL ...................... 33
S-13 CHECKING LOW PRESSURE SENSOR .......................... 33
S-15A RESISTANCE CHECK .................................................... 34
S-15B CAPACITANCE CHECK ................................................. 34
S-17 CHECKING COMPRESSOR .......................................... 35
S-17A RESISTANCE TEST ....................................................... 35
S-17B GROUND TEST ........................................................... 36
S-26 TESTING TEMPERATURE SENSORS ............................. 36
S-40A AVPVC HEATER CONTROL ........................................... 37
S-50 CHECKING HEATER LIMIT CONTROL(S) ...................... 38
S-52 CHECKING HEATER ELEMENTS ................................... 38
S-60 ELECTRIC HEATER (OPTIONAL ITEM) ......................... 38
S-61A CHECKING HEATER LIMIT CONTROL(S) ...................... 39
S-61B CHECKING HEATER FUSE LINK
(OPTIONAL ELECTRIC HEATERS) ................................. 39
S-100 REFRIGERATION REPAIR PRACTICE ............................ 39
S-101 LEAK TESTING (NITROGEN OR NITROGEN-TRACED) .. 40
S-102 EVACUATION ............................................................. 40
S-103 CHARGING ................................................................. 41
S-104 CHECKING COMPRESSOR EFFICIENCY ...................... 42
S-105B THERMOSTATIC EXPANSION VALVE ............................ 42
S-106 OVERFEEDING ........................................................... 42
S-107 UNDERFEEDING ......................................................... 42
S-108 SUPERHEAT ................................................................ 42
S-110 CHECKING EXPANSION VALVE OPERATION ................ 43
S-109 CHECKING SUBCOOLING ........................................... 46
S-114 NON-CONDENSABLES ................................................ 46
S-115 COMPRESSOR BURNOUT .......................................... 46
S-120 REFRIGERANT PIPING ................................................ 46
S-202 DUCT STATIC PRESSURES AND/OR
STATIC PRESSURE DROP ACROSS COILS .......... 50
S-203 AIR HANDLER EXTERNAL STATIC ................................. 50
S-204 COIL STATIC PRESSURE DROP .................................... 51