Service Manual
1 Service
A blank message box is located on the Details Screen. This box will display various messages detailing the status of the control module. If a message is present in this box, the DETAILS button on the Status Screen will contain a yellow triangle with an exclamation mark (!) inside.
Displayed items are as follows:
•Delta T Shutdown - The temperature rise between the inlet and outlet temperatures has exceeded 55°F. Reference page 53 for more information regarding this shutdown.
•Outlet Temp Shutdown - The outlet temperature has exceeded 195°F. Reference page 53 for more information regarding this shutdown.
•Flue Temp Shutdown - The flue temperature has exceeded 240°F. Reference page 53 for more information regarding this shutdown.
•Voltage too Low - The 120 VAC input to the control has dropped below 80 VAC. Reference page 52 for more information regarding this fault message.
•Connect System Sensor - System sensor is not detected by Control Module 1. For proper operation of the SYNC boiler the system sensor must be connected.
•Manual Shutdown - The boiler has been shutdown with the ON/OFF button on the Status Screen.
Time - The time is displayed in the upper
Status button - Pressing this button displays the Status Screen. This screen shows the current status of the SYNC boiler. Reference pages 13 - 14 for more information regarding this screen.
Main button - Pressing this button displays the Main Screen. From this screen, navigation to eight (8) additional screens is possible. Refer to Main Screen on page 17 for more information regarding this screen.
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