Heat Controller VMH12SC-1, VMH24SC-1 Some frequently-used R-T data for T1, T2, T3 and T4 sensor

Page 44

Service Manual

VMH Series

Heat Controller, Inc.

 

 

 

Room temp.(T1) sensor,

Indoor coil temp.(T2) sensor,

Outdoor coil temp.(T3) sensor,

Outdoor ambient temp.(T4) sensor,

Compressor exhaust temp.(Te) sensor.

Measure the resistance value of each winding by using the multi-meter.

Some frequently-used R-T data for Te sensor:

Temperature (0°F)

41°F/5°C

59°F/15°C

77°F/25°C

95°F/35°C

140°F/60°C

158°F/70°C

176°F/80°C

194°F/90°C

212°F/100°C

 

 

 

 

 

 

 

 

 

 

Resistance Value

141.6

88

56.1

36.6

13.8

9.7

6.9

5

3.7

(KΩ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Some frequently-used R-T data for T1, T2, T3 and T4 sensor:

Temperature

41°F/5°C

50°F/10°C

59°F/15°C

68°F/20°C

77°F/25°C

86°F/30°C

104°F/40°C

122°F/50°C

140°F/60°C

(0°F)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resistance

26.9

20.7

16.1

12.6

10

8

5.2

3.5

2.4

Value (KΩ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

Page 43 Page 45
Image 44
Page 43 Page 45
Contents Inverter Single Zone Ductless Mini Split Heat Pump Contents  Installation PrecautionSafety Precaution  For installation, always contact the dealer  Caution  Keep level even when installing the product  Operational Use two or more people to lift and transport the product  Do not block the inlet or outlet of air flow Do not drink the water drained from the product Function Anti-freeze protection in coolingOutdoor unit Compressor delay Dimension Indoor UnitModel Dimension mm Outdoor UnitRefrigerant Cycle Diagram Indoor OutdoorWiring Diagrams VMH09SC-1 A-VMH12SC-1 VMH18SC-1 Installation details Pipe length and the elevation Single Zone V Series Inverter SystemPressure Test & Evacuation System Evacuation and ChargingOperation characteristics Display function Electronic functionAbbreviation Main Protection Preheat mode Fan only modeOperation Modes and Functions Preheat terminationCooling Mode Compressor running rules Frequency decreases Holds Model CurrentIndoor fan running rules Condenser high temperature T3 protectionOutdoor fan rules Evaporator low temperature T2 protection Heating Mode Compressor running rulesT1-Ts-ΔT +5.0 +4.5 +3.5 +3.0 +2.5 +2.0 +1.5 +1.0 +0.5 I1HEAT I2HEAT I3HEAT Outdoor fan running rulesIndoor fan rules Unit TEL0 TEL1 VMH09SC-1VMH12SC-1 VMH18SC-1Defrost mode： Defrost Actions For 9K and 12K unit For 18K and 24K unit High evaporator coil temp.T2 protection Auto-modeDehumidify mode Forced operation functionTimer function Sleep function modeAutomatic front panel function Ionizer Clean Air functionAuto-Restart function Troubleshooting SafetyEeprom parameter error diagnosis and solution Indoor Unit Error DisplayDiagnosis and Solution VMH Series E3 Indoor or E7 Outdoor Igbt over current protection diagnosis and solution VMH Series 29 P3 Error Low Ambient Protection Inverter compressor drive error diagnosis and solutionKey parts checking Position Resistance ValueVMH Series Some frequently-used R-T data for T1, T2, T3 and T4 sensor 2012
Top Page Image Contents