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BTU VENTILATION CORPORATION ● OFFICE 888-884-8070 ● FAX 218-346-7485 ●
www.btucorp.com
XT-70 Control Panel 31
HMI MISCELLANEOUS:
The plenum temperature is the average of the two sensors in the plenum. Using two sensors allows for
greater accuracy, protection against drift and sensor failure. Both of the plenum sensors are displayed
on this screen.
Time Purge is a mode that can be used if there is no CO
2
sensor. To use the Time Purge, the E2 pa-
rameter Purge_Cfg must firstbe set to 1. The E2 parameter Max_door must also be set to the desired
setting. Do not go over 20%.
Use the buttons to set up the desired maximum outside air temperature, length of purge, the frequency
of the purge and the fan speed during purge.
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