Initial Power Up Sequence - Rheem RTGH-C95XLP Use And Care Manual

Initial Power up Sequence

For some models, a gas chip is not installed into a
PCB. After vent installation is complete, a gas chip
for non-common vent applications should be installed
for those models. The gas chip is shipped with the
tankless water heater.
WARNING:
DO NOT operate Rheem tankless water heater for non-
common vent applications without the gas chip for non-
common vent. DO NOT operate Rheem tankless water
heaters for common vent applications without the gas chip
for common vent.
1
Make sure electrical power is disconnected and turn
off gas and water to the water heater.
2
Remove the front panel on the water heater.
Dip Switches
Control
3 Board
Find a gas chip on the control board. Find a connector
for a gas chip located middle right on the control board.
INSTALLATION INSTRUCTIONS
4
Find a plastic bag located on the back of the front
cover. One gas chip is for common vent and the other
is for non-common vent. Remove the gas chip for non-
common vent from the plastic bag. Gripping the chip,
carefully align and insert the chip into the connector for
the gas chip on the control board. DO NOT force.
5
Replace the front cover panel.
6
Connect power to the water, and turn on gas and water
to the water heater.
Control
Board
Control
Board
Control
Board
Control
Board
Control
Board
71