Econ Economizing When It Should Not alarm

Was bedeutet Econ Economizing When It Should Not ?

This alarm means the economizer damper is open beyond its minimum position when it should not be, typically occurring when the unit is in occupied mode but not in a free cooling situation.

• Economizer minimum position is set incorrectly
• Economizer damper position is greater than the set minimum
• Incorrect voltage output from the economizer module
• Actuator set for reverse acting instead of forward acting
• Wiring issue between the economizer module, actuator, and SEC board

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the economizer status using the SEC pathway Status > Econ-S=. Verify the unit is in occupied mode and assess if free cooling is appropriate.

2. 2

   Check the economizer minimum position settings ('Details' > 'Control' > 'Econ' > 'Econ-MinPos') and compare the economizer damper position ('Details' > 'Service' > 'Inputs' > 'Sensors' > 'EconDampPos') to this setting.

3. 3

   Check the voltage output from the SE-ECO1001 economizer module's ECON analog output (should be 2-10 VDC). If it doesn't match the % of minimum position, disconnect the output and common plug and recheck voltage at the module pins. Check 24 VAC power to the module.

4. 4

   If the ECON analog output is correct, check the SE-ECO1001 feedback terminal (ECOFB). If ECOFB voltage is higher than the ECON output, check the actuator's reverse acting setting.

5. 5

   If the actuator is set correctly, verify it has 24 VAC power. If power is correct but feedback is improper, replace the actuator. If power is incorrect, check wiring and SE-ECO1001 24V power to the actuator. If power is correct from the module, replace the SE-ECO1001 module.