IBC SL 20-160 G3, Installation And Operating Instructions Manual

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5-5
TROUBLESHOOTING
SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERS
3. Tap the SIM Module button.
4. Tap the
LWCO Test
button.
5. Disconnect the yellow wire from the LWCO function.
A message on the screen indicates that the boiler is in lockout mode.
6. To reset the boiler, reconnect the yellow wire to the LWCO function.
7. On the touchscreen controller, tap the
Reset button.
The message: “The SIM Module has been reset” is displayed.
8. Tap the
Close
button, and then tap the
Back
button until you return to the Home
screen.
5.2.4.2 Hi-limit temperature manual reset function: reset and test
The hi-limit temperature function monitors the hi-limit temperature set in the SIM. If
the water temperature exceeds the hi-limit temperature, the boiler goes into a lockout
condition, requiring a manual reset. You can test the hi-limit cutoff temperature function on
the boiler.
Resetting the boiler after a Hi-Limit lockout
Before you reset the boiler, ensure that the boiler is pressurized and that the air has been
removed.
1. On the touchscreen controller, tap the Home screen.
2. On the
Main Menu , tap the Diagnostics button.
3. Tap the
Advanced Diagnostics
button.
4. Tap the
Clear Errors
button.
5. Tap the Yes radio button, and then tap OK .
The system clears the errors, and resets the boiler.
Testing the Hi-Limit cutoff temperature function
1. On the touchscreen controller, tap the Home screen.
2. On the
Main Menu , tap the Diagnostics button.
3. Tap the
SIM Module
button.
4. Tap the
Hi-Limit Test
button.
You will need to enter a cutoff temperature below the Supply Temp. value currently
displayed. For example, if the Supply Temp. value is 180°F, enter 170°F in the Cut Off
Temp. box.
5. Tap inside the
Cut-Off Temp.
box, and then tap a number value.
6. Tap the
OK
button.
The message: “Hi-Limit Detected” is displayed.
7. To reset the boiler, select the
Reset
button.
The message: “The SIM module has been reset” is displayed.
8. Tap the Close button, and then tap the Back button until you return to the Home
screen.