IVT AE-X12FR-N User Manual

AYXP12FRN
3 – 5
[3] THERMISTOR TEMPERATURE CHARACTERISTICS
1. Indoor unit thermistor temperature characteristics
2-way valve ther-
mistor (TH5)
Cooling
Dehumidifying
Expansion valve
control
Frost accumu-
lates on indoor
unit evaporator
and room does
not become cool
(expansion valve
is closed).
Outdoor unit ther-
mistor short-cir-
cuit error
indication.
Compressor
operates, but
room does not
become cool
(expansion valve
is open).
Outdoor unit ther-
mistor open-cir-
cuit error
indication.
Heating Operation not
affected
Normal operation. Outdoor unit ther-
mistor short-cir-
cuit error
indication.
Normal operation. Outdoor unit ther-
mistor open-cir-
cuit error
indication.
Item Mode Control opera-
tion
When resis-
tance is low
(temperature
judged higher
than actual)
Short-circuit When resis-
tance is high
(temperature
judged lower
than actual)
Open-circuit
K
100
80
60
40
20
0
-10
010203040
Heat exchanger thermistor TH2 (orange)
Resistance at 25 : 15 k
Resistance at 25 : 10 k
Room temperature thermistor TH1 (yellow)
-
+
TesterTester
43
21
-
+
Temperature( )
Resistance
(K )
CN4
TH1 TH2
CN4
Thermistor
Room temperature
Heat exchanger
Color
Yellow
Orange
Symbol
TH1
(CN4)
TH2
(CN4)
TH1 Room temperature thermistor
TH2 Heat exchanger thermistor
Before measuring resistance,
disconnect connectors as
shown above.

IVT AE-X12FR-N Specifications

General

Brand	IVT
Model	AE-X12FR-N
Category	Air Conditioner
Language	English