York HIDS006B21S, Service Manual

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3-26
SM-18001-rev.1
TROUBLESHOOTING
NOTICE:
This figure is applicable to the following thermistors.
1. Inlet Air Thermistor (THM1), 2. Liquid Pipe Thermistor (Freeze Protection) (THM3), 3. Gas Pipe Thermistor (THM5),
4. Outlet Air Thermistor (THM2), 5. Outside Air Thermistor or Remote Thermistor (THM4)
0
10
20
30
40
50
60
70
80
(-15) (-10) (-5) (0) (5) (10) (15) (20) (25) (30) (35) (40) (45) (50) (55) (60)
82
61
46
35
27
20.5
16
12.5
10
8
5.3
3.6
2.5
90
Thermistor
Resistance
(kΩ)
Thermistor Characteristics
5 14 23 32 41 50 59 68 77 86 95 104 113 122 131 140
Ambient Temperature ( o F( o C))
Indication on Outdoor Unit PCB
(Alarm Code 11 ~ 19)
Unit No. of
Malfunctioning Indoor Unit
Alarm Code
(11 ~ 19)