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2100-444-003A
Page 6
2.4 Sensor Specifications
2.4.1 TEMPERATURE SENSORS
Indoor and Outdoor
Type Thermistor
Ohms 3000 Ω at 77
o
F (25
o
C)
Temperature Range -40 to 302
o
F (-40 to 150
o
C)
Interchangeability .2 Deg Celsius
Discharge
Type Thermistor
Ohms 10000 Ω at 77
o
F (25
o
C)
Temperature Range -40 to 302
o
F (-40 to 150
o
C)
Interchangeability .2 Deg Celsius
2.4.2 HUMIDITY SENSORS
Type Bulk Polymer
Output 0-5 Vdc
Supply Voltage 24 Vac, +/- 15%
Accuracy +/- 5%
Sensitivity 0.1% RH
Repeatability 0.5% RH
Long Term Stability Less than 1% per year
Interchangeability +/- 3%
Temperature Range -40 to 130
o
F (-40 to 76
o
C)
Humidity Range 0 to 99%, non condensing
2.4.3 COMPRESSOR CURRENT SENSOR
Type Solid State DC Switch
Output Form "A" solid state DC switch
Supply Voltage Self Powered
Trip Current Range 1 to 175 Amps
Maximum Load 150 mA, at 30 VDC
Temperature Range -58 to 149
o
F (-50 to 65
o
C)
Dimensions 2.125 in. high, 3.25 in. wide, 1 in. deep
(54 mm. high, 83 mm. wide, 26 mm. deep)
2.4.4 DIRTY FILTER SENSOR
Type Mechanical Airflow Switch
Output Form "A" Contact
Supply Voltage Self Powered
Maximum Load 1.5A, at 24 VAC
Temperature Range 0 to 170
o
F (-18 to 77
o
C)
Pressure Range 0.1 to 0.7 in. wc.
Dimensions 3 1/4 in. high, 2 1/4 in. wide, 2 in. deep
(83 mm. high, 57 mm. wide, 51 mm. deep)