Rheem IKONIC RTGH-S11i Training And Service Manual page 86

IKONIC Tankless Water Heater Service Manual
HOW TO REMOVE COMPONENTS
3.23 ORIFICE PLATE (NAT/LP)
8. Place two (2) gaskets on the LP (or NAT) orifice
plate.
9. Install the LP (or NAT) orifice plate on to the gas
orifice block, for use with LP (or NAT) gas.
NOTE: To ensure a leak free joint, verify that
both gaskets on the gas orifice block are in
place and are in good condition, before at-
taching the LP (or NAT) orifice plate.
10. Use the 7/16" long screw removed at step 7 to se-
cure the orifice plate to the gas orifice block, DO
NOT use different screw type or length.
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NOTE: Install the orifice plate in the right
orientation. To ensure a leak free joint verify
both gaskets on the orifice plate and both on
gas valve is in place and are in good condi-
tion, before attaching the gas orifice block.