Reznor YDSA Unit Installation Manual - Manual (Page 61)

Form I-Y, P/N 273646R6, Page 61
5. Use the up or down arrow keys to navigate to the
a.Test Mode menu and press the enter key to select.
6. From the test mode Screen E.a.1, press the enter key
to select the Enable: field, and press the up or down
arrow key to turn the test mode ON.
Once enabled ON, press the enter key in succession
until the cursor is flashing in the uppermost left hand
corner of the screen and use the down arrow key to
navigate to the next Test Mode Screen E.a.2.
7. If applicable, visibly check that the optional unit
dampers have actuated to the full open position
(Outside Air) and full closed position (Return Air).
NOTE: The damper actuators will have up to a 120
second time period for full stroke.
If the unit is equipped with damper(s) and they have
not actuated to the appropriate positions, refer to Form
O-Y for instructions.
NOTE: Damper operation is required in order to
complete the Test Mode.
With proper damper operation, close the damper
access door and resume the test at Step 8.
8. Visibly check the rotation decal in the unit fan
compartment to verify proper rotation of the unit
supply fan. If the fan rotation is incorrect, the main
unit electrical supply must be de-energized. Once
de-energized, the electrical phasing will need to be
switched at the main unit disconnect. After the unit
phasing is corrected, re-verify the unit supply fan
rotation.
With proper supply fan rotation, close the supply fan
access door, and resume the test mode at Step 9.
9. From the Test Mode Screen E.a.2, verify that the
Supply Fan Airflow Status: and the Exhaust Airflow
Status: (if applicable) are reading ON.
Test Mode Detailed Description
1. From the Main Screen check to ensure that the unit
is in the OFF state. If the unit is in the OFF state,
proceed to Step 4.
If the unit is not in the OFF state, proceed to Step 2.
2. Press the Program Key to access the main menu and
then press the up or down arrow keys to navigate to
the A. Quick Set points submenu.
Press the enter key to select.
3. Press the enter key until the cursor is blinking on the
State_Sel: field and press the down arrow key to set
the unit to the OFF state.
4. Press the escape key to access the main menu and
use the up or down arrow keys to navigate to the
E. Service submenu. Press the enter key to select.
When prompted to enter the Service Password, use
the up or down arrow keys and enter the service
password of 7125, and press the enter key.
(continued)
With the unit de-energized, open and secure the supply
fan access door and the damper access door.
Turn on the main unit disconnect to energize the unit. The
unit digital controller will take two to three minutes to ini-
tialize.