• © 2009 Rinnai America Corporation
5
Scope of Use-
Multiple Zone System (Outdoor Reset mode)
Zone
Thermostats
Third
Party
Controller
Outdoor
Sensor
Zone Valve Piping
In this application, the RS100 will allow
the boiler to switch between day and
night outdoor reset curves. The boiler is
then operating with constant circulation
and no input from room thermostats
(on/off) or third party controls. In this
application, a third party relay panel
should be used to control pumps or
zone valves. The panel cannot be
connected to the boiler with an RS100
also connected. Boiler thermostat
terminals 22 and 23 are inactive when
the RS100 is connected.
If multiple zones are used, it is
likely not beneficial to have a
single zone controlling the
boiler’s demand. The RS100
can be used where its room
information does not influence
the boiler’s demand. Its clock
functions are still active as
well as the ability to adjust a
theoretical temperature for
comfort.
