Rc80Hpe, Rc80Hpi, Rc98Hpe, Rc98Hpi - Rinnai REU-KA2530FFUD-US Service Manual

KA Series Component Replacement Instructions
PC Board
1. Turn off the gas supply.
2. Turn off the 120 V power supply.
3. Turn off the water supply.
4. Remove four screws securing the front panel.
Remove front panel.
5. Lift up the plastic guard covering the front of the PC
board.
6. Remove the controller connections and the two
ground wires at the bottom of the cabinet.
7. If a surge protector with terminals is installed, then
remove this board by removing two screws. This
board should be re-installed on the replacement PC
board.
8. Remove the two screws at the top and bottom of the
PC board.
9. Pull out the PC board, remove plastic cover, and
remove the connections.
10. Adjust dip switches on the new PC board. (Refer to
page 55.)
11. Attach connections and plastic cover.
12. Insert PC board and attach with two screws.
13. Attach connections for the temperature controller.
14. Attach plastic guard.
15. Install two ground wires at the bottom of the cabinet.
16. Perform the Gas Pressure Setting Procedure.
(Refer to pages 49-51)
Condensing Water Heater Service Manual

RC80HPe, RC80HPi, RC98HPe, RC98HPi

Screw
Temperature controller
terminals
(NOT for 120 V power)
If these 2 terminals are
present then this is a
surge protector board
with terminals to
connect freeze
protection solenoid
valves and should be
installed with the new
PC board.
Attached with 2 screws
Screw
26
100000354