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4T-V8-SF-1M-EN
17
SENSORS
Compressor Dome Temperature
This table shows the corresponding voltage, resistance
and temperature readings for the Dome Temperature
Sensor when measured across pins 1 and 10. The
power source for the Dome Temperature Sensor is
3.2VDC.
7(03 ) 7(03 &
7+(50,6725
5(6,67$1&(
๎˜‹2+06๎˜Œ
92/76 '&
๎˜‹3,1 72 3,1๎˜Œ
๎˜๎˜”๎˜˜ ๎˜๎˜•๎˜™๎˜‘๎˜”๎˜” ๎˜”๎˜–๎˜œ๎˜—๎˜˜๎˜– ๎˜–๎˜‘๎˜”๎˜–
๎˜๎˜”๎˜“ ๎˜๎˜•๎˜–๎˜‘๎˜–๎˜– ๎˜”๎˜”๎˜›๎˜“๎˜™๎˜• ๎˜–๎˜‘๎˜”๎˜”
๎˜๎˜˜ ๎˜๎˜•๎˜“๎˜‘๎˜˜๎˜™ ๎˜”๎˜“๎˜“๎˜•๎˜˜๎˜› ๎˜–๎˜‘๎˜”๎˜“
๎˜“ ๎˜๎˜”๎˜š๎˜‘๎˜š๎˜› ๎˜›๎˜˜๎˜–๎˜œ๎˜– ๎˜–๎˜‘๎˜“๎˜›
๎˜˜ ๎˜๎˜”๎˜˜๎˜‘๎˜“๎˜“ ๎˜š๎˜•๎˜œ๎˜—๎˜— ๎˜–๎˜‘๎˜“๎˜™
๎˜”๎˜“ ๎˜๎˜”๎˜•๎˜‘๎˜•๎˜• ๎˜™๎˜•๎˜—๎˜›๎˜š ๎˜–๎˜‘๎˜“๎˜—
๎˜”๎˜˜ ๎˜๎˜œ๎˜‘๎˜—๎˜— ๎˜˜๎˜–๎˜™๎˜š๎˜™ ๎˜–๎˜‘๎˜“๎˜•
๎˜•๎˜“ ๎˜๎˜™๎˜‘๎˜™๎˜š ๎˜—๎˜™๎˜•๎˜–๎˜• ๎˜•๎˜‘๎˜œ๎˜œ
๎˜•๎˜˜ ๎˜๎˜–๎˜‘๎˜›๎˜œ ๎˜–๎˜œ๎˜œ๎˜•๎˜˜ ๎˜•๎˜‘๎˜œ๎˜™
๎˜–๎˜“ ๎˜๎˜”๎˜‘๎˜”๎˜” ๎˜–๎˜—๎˜˜๎˜™๎˜š ๎˜•๎˜‘๎˜œ๎˜–
๎˜–๎˜˜ ๎˜”๎˜‘๎˜™๎˜š ๎˜–๎˜“๎˜“๎˜“๎˜– ๎˜•๎˜‘๎˜›๎˜œ
๎˜—๎˜“ ๎˜—๎˜‘๎˜—๎˜— ๎˜•๎˜™๎˜”๎˜“๎˜˜ ๎˜•๎˜‘๎˜›๎˜˜
๎˜—๎˜˜ ๎˜š๎˜‘๎˜•๎˜• ๎˜•๎˜•๎˜š๎˜™๎˜š ๎˜•๎˜‘๎˜›๎˜“
๎˜˜๎˜“ ๎˜”๎˜“๎˜‘๎˜“๎˜“ ๎˜”๎˜œ๎˜œ๎˜“๎˜– ๎˜•๎˜‘๎˜š๎˜˜
๎˜˜๎˜˜ ๎˜”๎˜•๎˜‘๎˜š๎˜› ๎˜”๎˜š๎˜—๎˜–๎˜› ๎˜•๎˜‘๎˜š๎˜“
๎˜™๎˜“ ๎˜”๎˜˜๎˜‘๎˜˜๎˜™ ๎˜”๎˜˜๎˜–๎˜”๎˜• ๎˜•๎˜‘๎˜™๎˜—
๎˜™๎˜˜ ๎˜”๎˜›๎˜‘๎˜–๎˜– ๎˜”๎˜–๎˜—๎˜š๎˜˜ ๎˜•๎˜‘๎˜˜๎˜›
๎˜š๎˜“ ๎˜•๎˜”๎˜‘๎˜”๎˜” ๎˜”๎˜”๎˜›๎˜›๎˜– ๎˜•๎˜‘๎˜˜๎˜”
๎˜š๎˜˜ ๎˜•๎˜–๎˜‘๎˜›๎˜œ ๎˜”๎˜“๎˜˜๎˜“๎˜” ๎˜•๎˜‘๎˜—๎˜˜
๎˜›๎˜“ ๎˜•๎˜™๎˜‘๎˜™๎˜š ๎˜œ๎˜•๎˜œ๎˜› ๎˜•๎˜‘๎˜–๎˜š
๎˜›๎˜˜ ๎˜•๎˜œ๎˜‘๎˜—๎˜— ๎˜›๎˜•๎˜—๎˜œ ๎˜•๎˜‘๎˜–๎˜“
๎˜œ๎˜“ ๎˜–๎˜•๎˜‘๎˜•๎˜• ๎˜š๎˜–๎˜–๎˜– ๎˜•๎˜‘๎˜•๎˜•
๎˜œ๎˜˜ ๎˜–๎˜˜๎˜‘๎˜“๎˜“ ๎˜™๎˜˜๎˜–๎˜“ ๎˜•๎˜‘๎˜”๎˜—
๎˜”๎˜“๎˜“ ๎˜–๎˜š๎˜‘๎˜š๎˜› ๎˜˜๎˜›๎˜•๎˜™ ๎˜•๎˜‘๎˜“๎˜™
๎˜”๎˜“๎˜˜ ๎˜—๎˜“๎˜‘๎˜˜๎˜™ ๎˜˜๎˜•๎˜“๎˜› ๎˜”๎˜‘๎˜œ๎˜š
๎˜”๎˜”๎˜“ ๎˜—๎˜–๎˜‘๎˜–๎˜– ๎˜—๎˜™๎˜™๎˜– ๎˜”๎˜‘๎˜›๎˜œ
๎˜”๎˜”๎˜˜ ๎˜—๎˜™๎˜‘๎˜”๎˜” ๎˜—๎˜”๎˜›๎˜• ๎˜”๎˜‘๎˜›๎˜“
๎˜”๎˜•๎˜“ ๎˜—๎˜›๎˜‘๎˜›๎˜œ ๎˜–๎˜š๎˜˜๎˜› ๎˜”๎˜‘๎˜š๎˜•
๎˜”๎˜•๎˜˜ ๎˜˜๎˜”๎˜‘๎˜™๎˜š ๎˜–๎˜–๎˜›๎˜• ๎˜”๎˜‘๎˜™๎˜–
๎˜”๎˜–๎˜“ ๎˜˜๎˜—๎˜‘๎˜—๎˜— ๎˜–๎˜“๎˜—๎˜› ๎˜”๎˜‘๎˜˜๎˜˜
๎˜”๎˜–๎˜˜ ๎˜˜๎˜š๎˜‘๎˜•๎˜• ๎˜•๎˜š๎˜˜๎˜• ๎˜”๎˜‘๎˜—๎˜š
๎˜”๎˜—๎˜“ ๎˜™๎˜“๎˜‘๎˜“๎˜“ ๎˜•๎˜—๎˜›๎˜› ๎˜”๎˜‘๎˜–๎˜œ
๎˜”๎˜—๎˜˜ ๎˜™๎˜•๎˜‘๎˜š๎˜› ๎˜•๎˜•๎˜˜๎˜– ๎˜”๎˜‘๎˜–๎˜”
๎˜”๎˜˜๎˜“ ๎˜™๎˜˜๎˜‘๎˜˜๎˜™ ๎˜•๎˜“๎˜—๎˜– ๎˜”๎˜‘๎˜•๎˜—
๎˜”๎˜˜๎˜˜ ๎˜™๎˜›๎˜‘๎˜–๎˜– ๎˜”๎˜›๎˜˜๎˜™ ๎˜”๎˜‘๎˜”๎˜š
๎˜”๎˜™๎˜“ ๎˜š๎˜”๎˜‘๎˜”๎˜” ๎˜”๎˜™๎˜›๎˜› ๎˜”๎˜‘๎˜”๎˜“
๎˜”๎˜™๎˜˜ ๎˜š๎˜–๎˜‘๎˜›๎˜œ ๎˜”๎˜˜๎˜–๎˜š ๎˜”๎˜‘๎˜“๎˜–
๎˜”๎˜š๎˜“ ๎˜š๎˜™๎˜‘๎˜™๎˜š ๎˜”๎˜—๎˜“๎˜• ๎˜“๎˜‘๎˜œ๎˜š
๎˜”๎˜š๎˜˜ ๎˜š๎˜œ๎˜‘๎˜—๎˜— ๎˜”๎˜•๎˜›๎˜“ ๎˜“๎˜‘๎˜œ๎˜”
๎˜”๎˜›๎˜“ ๎˜›๎˜•๎˜‘๎˜•๎˜• ๎˜”๎˜”๎˜š๎˜“ ๎˜“๎˜‘๎˜›๎˜˜
๎˜”๎˜›๎˜˜ ๎˜›๎˜˜๎˜‘๎˜“๎˜“ ๎˜”๎˜“๎˜š๎˜” ๎˜“๎˜‘๎˜›๎˜“
๎˜”๎˜œ๎˜“ ๎˜›๎˜š๎˜‘๎˜š๎˜› ๎˜œ๎˜›๎˜• ๎˜“๎˜‘๎˜š๎˜—
๎˜”๎˜œ๎˜˜ ๎˜œ๎˜“๎˜‘๎˜˜๎˜™ ๎˜œ๎˜“๎˜” ๎˜“๎˜‘๎˜š๎˜“
๎˜•๎˜“๎˜“ ๎˜œ๎˜–๎˜‘๎˜–๎˜– ๎˜›๎˜•๎˜› ๎˜“๎˜‘๎˜™๎˜˜
๎˜•๎˜“๎˜˜ ๎˜œ๎˜™๎˜‘๎˜”๎˜” ๎˜š๎˜™๎˜• ๎˜“๎˜‘๎˜™๎˜”
๎˜•๎˜”๎˜“ ๎˜œ๎˜›๎˜‘๎˜›๎˜œ ๎˜š๎˜“๎˜• ๎˜“๎˜‘๎˜˜๎˜š
๎˜•๎˜”๎˜˜ ๎˜”๎˜“๎˜”๎˜‘๎˜™๎˜š ๎˜™๎˜—๎˜š ๎˜“๎˜‘๎˜˜๎˜–
7(03 ) 7(03 &
7+(50,6725
5(6,67$1&(
๎˜‹2+06๎˜Œ
92/76 '&
๎˜‹3,1 72 3,1๎˜Œ
๎˜•๎˜•๎˜“ ๎˜”๎˜“๎˜—๎˜‘๎˜—๎˜— ๎˜˜๎˜œ๎˜š ๎˜“๎˜‘๎˜˜๎˜“
๎˜•๎˜•๎˜˜ ๎˜”๎˜“๎˜š๎˜‘๎˜•๎˜• ๎˜˜๎˜˜๎˜• ๎˜“๎˜‘๎˜—๎˜š
๎˜•๎˜–๎˜“ ๎˜”๎˜”๎˜“๎˜‘๎˜“๎˜“ ๎˜˜๎˜”๎˜” ๎˜“๎˜‘๎˜—๎˜—
๎˜•๎˜–๎˜˜ ๎˜”๎˜”๎˜•๎˜‘๎˜š๎˜› ๎˜—๎˜š๎˜– ๎˜“๎˜‘๎˜—๎˜”
๎˜•๎˜—๎˜“ ๎˜”๎˜”๎˜˜๎˜‘๎˜˜๎˜™ ๎˜—๎˜–๎˜› ๎˜“๎˜‘๎˜–๎˜›
๎˜•๎˜—๎˜˜ ๎˜”๎˜”๎˜›๎˜‘๎˜–๎˜– ๎˜—๎˜“๎˜š ๎˜“๎˜‘๎˜–๎˜™
๎˜•๎˜˜๎˜“ ๎˜”๎˜•๎˜”๎˜‘๎˜”๎˜” ๎˜–๎˜š๎˜› ๎˜“๎˜‘๎˜–๎˜–
๎˜•๎˜˜๎˜˜ ๎˜”๎˜•๎˜–๎˜‘๎˜›๎˜œ ๎˜–๎˜˜๎˜” ๎˜“๎˜‘๎˜–๎˜”
๎˜•๎˜™๎˜“ ๎˜”๎˜•๎˜™๎˜‘๎˜™๎˜š ๎˜–๎˜•๎˜š ๎˜“๎˜‘๎˜•๎˜œ
๎˜•๎˜™๎˜˜ ๎˜”๎˜•๎˜œ๎˜‘๎˜—๎˜— ๎˜–๎˜“๎˜— ๎˜“๎˜‘๎˜•๎˜š
๎˜•๎˜š๎˜“ ๎˜”๎˜–๎˜•๎˜‘๎˜•๎˜• ๎˜•๎˜›๎˜— ๎˜“๎˜‘๎˜•๎˜™
๎˜•๎˜š๎˜˜ ๎˜”๎˜–๎˜˜๎˜‘๎˜“๎˜“ ๎˜•๎˜™๎˜˜ ๎˜“๎˜‘๎˜•๎˜—
๎˜•๎˜›๎˜“ ๎˜”๎˜–๎˜š๎˜‘๎˜š๎˜› ๎˜•๎˜—๎˜š ๎˜“๎˜‘๎˜•๎˜–
๎˜•๎˜›๎˜˜ ๎˜”๎˜—๎˜“๎˜‘๎˜˜๎˜™ ๎˜•๎˜–๎˜” ๎˜“๎˜‘๎˜•๎˜”
๎˜•๎˜œ๎˜“ ๎˜”๎˜—๎˜–๎˜‘๎˜–๎˜– ๎˜•๎˜”๎˜™ ๎˜“๎˜‘๎˜•๎˜“
๎˜•๎˜œ๎˜˜ ๎˜”๎˜—๎˜™๎˜‘๎˜”๎˜” ๎˜•๎˜“๎˜– ๎˜“๎˜‘๎˜”๎˜œ
๎˜–๎˜“๎˜“ ๎˜”๎˜—๎˜›๎˜‘๎˜›๎˜œ ๎˜”๎˜œ๎˜“ ๎˜“๎˜‘๎˜”๎˜›
๎˜–๎˜“๎˜˜ ๎˜”๎˜˜๎˜”๎˜‘๎˜™๎˜š ๎˜”๎˜š๎˜› ๎˜“๎˜‘๎˜”๎˜š
๎˜–๎˜”๎˜“ ๎˜”๎˜˜๎˜—๎˜‘๎˜—๎˜— ๎˜”๎˜™๎˜š ๎˜“๎˜‘๎˜”๎˜™
๎˜–๎˜”๎˜˜ ๎˜”๎˜˜๎˜š๎˜‘๎˜•๎˜• ๎˜”๎˜˜๎˜š ๎˜“๎˜‘๎˜”๎˜˜
๎˜–๎˜•๎˜“ ๎˜”๎˜™๎˜“๎˜‘๎˜“๎˜“ ๎˜”๎˜—๎˜› ๎˜“๎˜‘๎˜”๎˜—
๎˜–๎˜•๎˜˜ ๎˜”๎˜™๎˜•๎˜‘๎˜š๎˜› ๎˜”๎˜–๎˜œ ๎˜“๎˜‘๎˜”๎˜–
๎˜–๎˜–๎˜“ ๎˜”๎˜™๎˜˜๎˜‘๎˜˜๎˜™ ๎˜”๎˜–๎˜” ๎˜“๎˜‘๎˜”๎˜•
Figure 6. Dome Temperature Sensor
Pin 1 & 10 (Red)
Integrated Variable Speed Control Board
J1
123456789
101112131415161718
A working Compressor Dome Temperature Sensor is
required for:
โ€ข Protection (High/Low Temperature)
โ€ข Preheating (Sump Heat)
โ€ข Outdoor EEV Control
โ€ข Diagnostics; Reverse rotation, Flooding, Charge
Level
The Dome Temperature Sensor control contains an
NTC thermistor input for sensing the Compressor
Dome Temperature. The thermistor has a nominal
resistance of ยง 10k ohms at 75ยฐF. The minimum range
required for the Dome Temperature input is โ€”31ยฐF to
302ยฐF. when measured across pins 1 and 10.
NNoottee:: Secure Installation of Dome Sensor is required
for reliable compressor & system operation.

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