04/27/2021 2
EI912
Duct Sensor
This unit is equipped with a remote temperature-sensing probe. This is a solid state probe (actually a mini-
micro computer chip at the end of the probe) and should be handled with care.
Suggested installation is in the main warm air stream approximately 20 to 24 inches away from the electric
element. Simply drill a ½” hole in the duct, insert probe, and install in place.
Coil and tie excess cable. It should be connected to the Red, ST, and COM screw terminals.
WARNING
IF THE BLACK AND RED SENSOR WIRES ARE CROSSED OR INCORRECTLY INSTALLED AT THE
TERMINAL BLOCK AND POWER IS TURNED ON, BURNOUT DAMAGE CAN RESULT WITHIN
THE SENSOR PROBE.
Summer or Cooling Disable
Based on application, it may be ideal to disable this unit during the cooling cycle to prevent adding heat
during air conditioning operation.
Select one of the following 3 installation techniques or methods:
A.
Extend HP reversing valve wire to the designated “RV” tab. When J4 jumper is in place, a
24VAC input on the RV tab will disable the elements. Review your heat pump’s installation
manual to verify your heat pump’s reversing valve logic.
B.
Add a manual (summer) disable toggle switch between “R” and “RV” tab.
C.
Simply turn off 110V breaker during the cooling season.
Method B or C should be used for boost heater applications.
Содержание EM-WX01-120-1-06
Страница 7: ......