Rinnai COMBI i060C, Installation And Operation Manual, Page: 87 / 136

Rinnai I-Series Condensing Boiler Combi Manual 87
Parameter
Number
Setting Description
Selection
A b C d
Linked Operation Between CH Pump 1 and 2
No
Yes (Linked
Together)
This parameter enables linked operation
between the CH Pump 1 and 2. For example,
when T/T 1 is active, both pump 1 and 2 are ON.
The room thermostat wire must be connected
to the T/T1 connection.
When selecting DHW mode on DIP switch 3, the
parameter is not available and must in the OFF
position (default).
This setting is primarily for an application that
requires two pumps for one zone, such as in use
with a a header style application.
Linked Operation Between Main Boiler Pump
and CH Pump 1
No
Yes (Linked
Together)
(If selected,
hydraulic
separation is
needed.)
This parameter is only in use when DIP switch 2
is in the ON position.
This enables the linked operation between the
main boiler pump and CH pump 1. For example,
when the main pump is on, pump 1 is also on.
When DIP switch 2 is in the OFF position, the
pumps are automatically linked.
Main Pump Runs When the Target Temperature
is Achieved
Continuously Intervals
This selects the mode of the main pump running
when the target setpoint is achieved. This
setting is for whether running on intervals to
reduce pump operation or continuously running
to reduce wait time to re-fire. Intervals are 10
minutes ON and 30 minutes OFF.
Note: If an air handler is in use, use the default
setting “Continuously.”
External Pump Runs When the Setpoint
Temperature is Achieved
Same as Main
Pump
Does Not
Run
This selects the mode of the external pump(s)
running when the target setpoint is achieved.
This setting is for whether stopping the external
pump from running to reduce pump operation
time or it operates the same as the main pump
to enable remaining heat from the heat
exchanger to be delivered to the system.