Rinnai N Series Quick Start Manual

N-Series
Error indication switch (REUOPU3)
Ensure the power supply to the Rinnai INFINITY is disconnected before commencing
installation. Removing the front cover will expose live mains voltage connections.
WARNING
About the N-Series error switch
The Rinnai INFINITY water heater error switch is a volt-free normally open or normally closed
switch. The switch will shift to the reverse position when there is an active error in the water heater.
The switch is intended to be connected to a monitoring system such as a BMS (building monitoring
system) or other visual, or audible error indication system.
Systems designers should note that some errors will reset the switch to the normal state under
certain conditions. It is important that this is understood when developing monitoring and response
systems.
Suitability
The REUOPU3 is suitable for the N-Series
models only. One error switch is required for
each unit—the switch is installed inside the
water heater.
Switch rating: 24 V (AC or DC), 1 A
Systems requiring loads greater than this
should be configured via an external relay.
Installation
1. Remove the water heater front cover.
2. Connect the accessory cable main wiring
loom into the accessory port of the PCB,
refer image for position.
3. Connect the cable labeled 'BMS/Air
Handler' into the error indication switch.
4. Attach the error switch to the mounting
bracket (above the controller) inside the
unit. The orientation will differ depending on
whether the model is external or internal,
refer images on next page.
5. With the crimp connectors supplied,
join the red and black wires of the error
indication switch to the monitoring system
via the remote controller access hole at the
bottom of the water heater. Polarity is not
important.
6. Replace the water heater front cover and
reconnect the water supply.
Kit contents
PCB accessory port position
N-Series error indication switch 12554-A 01-20 I page 1 of 1
Rinnai NZ Ltd (0800 743 624)
Mounting screw
and crimp
connectors
Error indication
switch
Black = common
Red = normally open
White = normally closed
Accessory
cable
Accessory port