83
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XT-70 Control Panel 83
Set the following Main Flash parameters:
OSA DIFF this parameter is used to adjust the Start Temp. A suggested value for
running ARL would be +5 degrees.
CO2 SP this is the CO2 Setpoint. A suggested value would be 2000 ppm.
Purge_cnfg = 4
ERV: (Energy Recovery Ventilator) The ERV purge uses a ventilator that will bring in fresh
air. This configuration operates without a CO2 sensor, so it must trigger strictly on Time.
The Aux 1 switch must be set to control the ventilator and must be in Auto. Four parameters
must be set to initiate the ERV purge.
Example: (Buttons are main flash parameter that need to be set)
If the outside air is less than 40 degrees, initiate a purge cycle for 15 minutes every 6 hours
with fans at 85%. The fans will return to previous setting after purge.
If the XT panel is in Refrigeration or a Timed Run, the XT will turn the ventilator on. This
purge does not activate if the panel is in Cooling.
To use this configuration, set the following E2 parameters:
Purge_Cnfg = 4
Aux 1_Config = 1
Purge_cnfg = 5
ERV / CO2: (Energy Recovery Ventilator with CO2 Sensor) The ERV purge uses a ventilator
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