(Main Parts)
4-16
SM-16005-rev.2
MAINTENANCE
(2) Thermistor for Indoor Suction Air Temperature
(For Room Temperature Control)
The room temperature is controlled by the
thermistor for indoor suction air temperature
detecting the temperature at the suction air
inlet of the indoor unit.
The setting temperature is indicated on the
LCD of the wired controller by number.
Adjust the setting temperature for
prevention from excessive cooling and
heating.
It is recommended to set the temperature as follows:
Economical Cooling Operation: 81
o
F (27
o
C) to 84
o
F (29
o
C)
Economical Heating Operation: 64
o
F (18
o
C) to 68
o
F (20
o
C)
The resistance characteristics of thermistor is shown in the above figure.
ATTENTION:
The thermo-off value of the indoor unit air inlet thermistor is set at the temperature higher than the value
indicated on the wired controller switch by 7
o
F (4
o
C) and the maximum is 86
o
F (30
o
C), because the suction
air temperature during heating operation has a tendency to become higher than that of the occupied zone,
intending comfortable heating operation.
(3) Thermistor for Indoor Discharge Air Temperature (For Discharge Air Temperature Control)
The thermistor for indoor discharge air temperature is utilized for the control of prevention from cold air
discharge in heating operation, etc.
The resistance characteristics of thermistor is shown in the above figure.
(4) Thermistor for Liquid Pipe Temperature of Indoor Heat Exchanger
The resistance characteristics of thermistor is shown in the above figure.
(5) Thermistor for Gas Pipe Temperature of Indoor Heat Exchanger
The evaporating temperature in heating operation is detected.
The resistance characteristics of thermistor are shown in the above figure.
0
10
20
30
40
50
60
70
80
5
(-15)
14
(-10)
23
(-5)
0
(0)
41
(5)
50
(10)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
113
(45)
122
(50)
131
(55)
140
(60)
82
61
46
35
27
20.5
16
12.5
10
8
5.3
3.6
2.5
90
Ambient Temperature (
o
C)
Thermistor
Resistance
Thermistor Characteristics
When the temperature of the heat exchanger is below 32
o
F (0
o
C),
thermostat is turned OFF automatically and over 57
o
F (14
o
C),
thermostat is turned ON again.
Prevention from freezing
onto the heat exchanger in
COOL and DRY operation.
When the temperature of the heat exchanger is below 32
o
F (0
o
C),
thermostat is turned OFF automatically and over 57
o
F (14
o
C),
thermostat is turned ON again.
Prevention from freezing
onto the heat exchanger in
COOL and DRY operation.
Содержание IDM030B21E Series
Страница 2: ......
Страница 10: ...viii SM 16005 rev 2...
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Страница 15: ...SM 16005 rev 2 1 1 INSTALLATION 1 Installation...
Страница 19: ...SM 16005 rev 2 2 1 OPERATION 2 Operation...
Страница 20: ...2 2 SM 16005 rev 2 OPERATION 2 1 Indoor Unit Refer to the Operation Manual for Ducted Medium Static EconoFresh...
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Страница 23: ...SM 16005 rev 2 3 1 TROUBLESHOOTING 3 Troubleshooting...
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Страница 71: ...SM 16005 rev 2 4 1 MAINTENANCE 4 Maintenance...
Страница 72: ...4 2 SM 16005 rev 2 MAINTENANCE 4 1 Maintenance of Outdoor Unit Refer to the Service Manual for Outdoor Unit...
Страница 89: ...SM 16005 rev 2 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting...
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Страница 131: ...SM 16005 rev 2 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions...
Страница 140: ...6 10 SM 16005 rev 2 FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A f t 3 l b...
Страница 141: ...SERVICE PARTS LIST SM 16005 rev 2 7 1 7 Service Parts List...
Страница 142: ...SERVICE PARTS LIST 7 2 SM 16005 rev 2 Refer to the Service Parts List for Ducted Medium Static EconoFresh...
Страница 143: ......
Страница 144: ...2016 Johnson Controls Inc SM 16005 rev 2 Code No LIT 12012293 Revised February 2019...