AERCO Esteem Boiler with EZ-Set Controller - Manual (Page 97)

GF-135 Esteem 399 Low NOx Boiler
Chapter 12
OMM-0089_0A
Installation, Operation & Maintenance Manual Start-Up Procedures
12.4.6 High Temperature Limit Testing
To test the high temperature limit function, perform the following procedure.
Testing the High Temperature Limit Function
NOTE
The high temperature limit can be temporarily lowered from 210ºF
[99ºC] to 102ºF [39ºC] for testing.
1. Press the round INSTALLER button (See Figure 10-1).
2. Enter the installer access code “054” by using LEFT and RIGHT buttons to select a digit and
the UP and DOWN buttons to change the digit. Press the OK button to enter the access
code.
3. Press the OK button while CH & DHW Settings icon is highlighted.
4. Press the DOWN button to highlight the Boiler Settings icon then press the OK button.
5. Press the DOWN button to highlight Lockout Temperature then press the OK button.
6. Press the UP button to highlight 102ºF [39ºC] then press the OK button.
7. Press the DOWN button twice to highlight the Home Screen icon then press the OK
button.
8. Initiate a CH or DHW call and confirm that a High Boiler Temperature lockout occurs once
the supply temperature reaches 102ºF [39ºC].
9. Press any ARROW button to return to the Home Screen
10. Press the round INSTALLER button.
11. Press the OK button while the CH & DHW Settings icon is highlighted.
12. Press the DOWN button to highlight the Boiler Settings icon then press the OK button
13. Press the DOWN button to highlight Lockout Temperature, then press the OK button.
14. Press the DOWN button to highlight 210ºF [99ºC] then press the OK button.
15. Press the DOWN button twice to highlight the Home Screen icon then press the OK
button.
16. Press the OK button to reset the lockout and return the unit to service.
Page 97 of 188 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0089_0A
MC1 06/19/14 Ph.: 800-526-0288