Daikin McQuay 910121754 Kurulum ve Bakım Verileri - Sayfa 14
Aksesuarlar Daikin McQuay 910121754 için çevrimiçi göz atın veya pdf Kurulum ve Bakım Verileri indirin. Daikin McQuay 910121754 16 sayfaları. Digitally adjustable display sensor for water source heat pumps smartsource gs series; smartsource gt series; with microtech iii controls enfinity cch series; enfinity ccw series; enfinity vfc series; enfinity vfw series; enfinity lvc series; enfinity lvw
Sayfayı Yazdır
Diagnostics
Problem & Possible Solution
No Display
• Check the power connections and power voltage level
• Replace unit if power is okay.
No Temperature Signal
• Be sure the termination and wiring is correct and the
controller is set up properly. Make sure the "Override/
Reset" button is not stuck down.
• Replace unit if all checks are okay.
Override/Reset Not Working
• Measure the resistance to ground at the sensor output
terminal (Term. 4). When pushing the Override Button, it
should show a short. If not, replace the sensor.
No Fan Voltage Signal
• Be sure the termination and wiring is correct and the
controller is set up properly.
• Replace unit if all checks are okay.
No System Voltage Signal
• Be sure the termination and wiring is correct and the
controller is set up properly.
• Replace unit if all checks are okay.
De-humidification Not Working
• Adjust the System Mode to DHUM and check terminal
DH for voltage.
• Change the RH setpoint above and below the ambient RH
to prove the output contact.
• Replace unit if it still doesn't work.
Page 14 of 16 / IM 1171-3
Occupied Not Working
•
Verify that this terminal is in a powered circuit. Measure
the voltage to ground at the occupied terminal (U). When
pushing the Occupied Button (<2 secs), it should read
close to 0 volts. When you lift the button it should read
high volts.
•
Replace unit if it still doesn't work.
"Err" shown on the screen
•
This indicates that the temperature and humidity sensing
element has failed.
Problem & Possible Solution (Continued)
FAN key does not change Fan Mode
•
Check to verify FAN is not locked out in Programming
Mode Menu Page P6.
MODE key does not change System Mode
•
Check to verify Mode is not locked out in Programming
Mode Menu Page P7.
Up or Down key does not change Setpoints
•
Check to verify Set points are not locked out in
Programming Mode Menu Page P11.
Solid Man goes away after 20 seconds
•
Occupancy Request was not acknowledged by Main
controller, check wiring of Status Signal from controller.