Rheem Raypak MVB, Firmware Update

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2
Before Installation
1. Terminate any active call for heat. Disable the
boiler operation in the “boiler” menu or
deactivate the enable switch on the unit.
2. Allow the unit to shut down.
3. Turn OFF the boiler main power switch. Make
sure the boiler is completely de-energized.
•
Follow the instructions per unit’s model:
–
XFIIRE and XVERS-L (Page 3)
–
MVB and XTherm (Page 7)
–
XVERS (Page 15)
–
Troubleshooting (Page 22)
Raymote Firmware Update