Rinnai REU-2018W, Service Manual

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Infinity REU-2425W - 46 - Issue 2 - 5/07/04 ©Rinnai
IMPORTANT
For some areas of dismantling you may need
to isolate any or all of the following:
* Isolate gas supply.
* Disconnect electrical supply from wall
socket.
* Isolate water supply.
* Drain
all water from appliance.
The following diagram may be of assistance.
3) Removal of Front Panel
CAUTION
- 240 volt potential exposure. Isolate the
appliance and reconfirm with a neon
screwdriver or multimeter.
a. Remove the four (4) screws holding the panel
in place. (phillips driver)
4) Removal of PCB
CAUTION
- 240 volt potential exposure. Isolate the
appliance and reconfirm with a neon
screwdriver or multimeter.
a. Remove the 2 screws on the P.C.B. and pull
out towards you. (phillips driver)
5) Removal of Water Flow Sensor with
Water Flow Servo
CAUTION
- 240 volt potential exposure. Isolate the
appliance and reconfirm with a neon
screwdriver or multimeter.
- Isolate Water Supply.
b. Remove one (1) screw from the heat
exchanger water supply pipe to
release the metal lock. Pull the pipe
towards yourself to release. Handle
O-ring carefully. (phillips driver)