Installation Manual

92 Rinnai I-Series Condensing Boiler Solo Manual
Parameter
Number
Seng Descripon
Selecon
A b C d
40
Linked Operaon Between CH Pump 1 and 2
No
Yes (Linked
Together)
This parameter enables linked operaon
between the CH Pump 1 and 2. For example,
when T/T 1 is acve, both pump 1 and 2 are ON.
The T/T wire must be connected to the T/T1
connecon.
When it is desired to ulize DHW Recirculaon
via DIP switch 3, this parameter will not be
available. The DIP switch must be in the OFF
(default) posion for this parameter to be
enabled.
This seng is primarily for an applicaon that
requires two pumps for one zone, such as in use
with an injecon loop or similar system.
41
Linked Operaon Between Main Boiler Pump
and CH Pump 1
No
Yes (Linked
Together)
This parameter is only in use when DIP switch 2
is in the ON posion.
This enables the linked operaon 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 posion, the
pumps are automacally linked.
42
Main Pump Runs When the Target Temperature
is Achieved
Connuously Intervals
This selects the mode of the main pump running
when the target setpoint is achieved. This
seng is for whether running on intervals to
reduce pump operaon or connuously running
to reduce wait me to re-re. Intervals are 10
minutes ON and 30 minutes OFF.
43
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 seng is for whether stopping the external
pump from running to reduce pump operaon
me or it operates the same as the main pump
to enable remaining heat from the heat
exchanger to be delivered to the system.
44
External Pump Runs When Freeze Protecon is
in Operaon
Does Not Run Same as Main
Pump
(if selected,
hydraulic
separaon is
needed)
This selects how the external pump operates
when freeze protecon is in operaon. This
selects whether the pump will run to reduce the
pumps operaon me or operang the same as
the main pump to enable the boiler to deliver
the remaining heat to the system. The
temperature water being delivered to the
system may not be as warm as desired with this
seng ON.