Honeywell Prestige 2.0 IAQ Installation Instructions Manual page 5

If You Decide to Set Up Diagnostics
Later
When you are ready to set up diagnostics, follow these
steps:
1. From the Home screen, press MENU.
2. Scroll down and press Installer Options.
3. Enter the passcode and press Done (see Note).
NOTE: The passcode is the date code printed on
the back of the thermostat or press
MENU > Dealer Information to find the
date code.
4. Press Set Up Diagnostics.
5. Proceed to "Run a Test for Each Stage".
Run a Test for Each Stage
Follow these steps to run a test for each stage in the
HVAC system.
1. Turn on stage 1.
2. For each stage you test, wait until Delta T begins to
stabilize, then turn on the next stage (if present).
See Fig. 17 for an example.
ALERTS AND DELTA T DIAGNOSTICS WITH THE PRESTIGE® 2.0 IAQ THERMOSTAT
Fig. 15.
Fig. 16.
3. Press Next Step after Delta T stabilizes for the last
stage. The thermostat saves the Delta T and Run
Time Data for each stage you test and is displayed
on the next screen.
NOTE: The thermostat only saves test data for stages
that run 1 minute or longer.
Set Delta T Limits
1. Press Stage 1 to set the limits and run time (see
Fig. 18). Use the saved test data located in the
upper right corner of the screen to set the Delta T
Minimum and Maximum Limits and the Run Time
(see Fig. 19).
2. Press the up or down arrows to set the Minimum
and Maximum Limits and the Run Time.
3. Set appropriate Minimum and Maximum Delta T
Limits based on the reading from the equipment
test and what you consider to be unacceptable
performance from the heating and cooling
equipment.
5
Fig. 17.
Fig. 18.
Fig. 19.
69-2678EFS—03