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6.2.8 Analog Output Not Working Properly
Check wiring. A separate transformer should be used for the actuators and motors, and a separate transformer should be
used for the thermostat. Check to make sure that the analog output is programmed correctly.
The Advanced Status Screen will show what the thermostat is trying to output. Compare this with the actual position on
the heating or cooling device. The system test mode can be used to vary the analog outputs to test for proper operation
of actuators
(see section 4.5.2.10)
.
Two conditions must be met before the economizer analog output is allowed to modulate. First, there must be a call for
cooling. Second, the outdoor air temperature must be less than its programmed setting. Once these two conditions are
met the analog output will modulate according to its programming.
6.2.9 Both Heating and Cooling Are On
If this occurs, it could be that the thermostat is programmed for heat pump operation on a conventional system. If this is
not the case, wiring must be checked. The thermostat is not designed to provide heating and cooling at the same time.
CHECKOUT
AND
TROUBLESHOOTING
