Product Updates

Rinnai recently launched new product updates to the Rinnai I-Series Condensing Boilers. Listed below
are some of the new product features and enhancements.
Note: The following acronyms are commonly used throughout this document: CH = Central Heating;
DHW = Domestic Hot Water.
Description: The following temperatures have been lowered
from 104°F (40°C) to 86°F (30°C):
• Minimum Central Heating (CH) operation
temperature (temperature was lowered to
reduce the need of additional mixing valves for
low temperature heat emitter systems).
• Minimum temperature of Outdoor Reset
Curve 4 in Parameter 01 (Fig 2).
Model(s): Combi and Solo
Manual
Reference:
For more information on Outdoor Reset Curve 4,
refer to section “12.5.4 Outdoor Reset Curves” in
the “I-Series Boiler Installation and Operation
Manual” (Combi and Solo versions).
❶
Minimum Temperature Changes
Fig 2. Minimum Temperature on Outdoor Reset
Curve 4 as shown in the “I-Series Combi Boiler
Installation and Operation Manual”
Description: To adjust the CH setpoint temperature, Parameter 01 must be set to “d” (Curve 4)
(Table 2).
Model(s): Combi and Solo
Manual
Reference:
For more information on the CH setpoint temperature:
• Combi models: Refer to section “12.3.2 Central Heating Setpoint Temperature” in the
“I-Series Combi Boiler Installation and Operation Manual.”
• Solo models: Refer to section “12.3.1 Central Heating Setpoint Temperature” in the
“I-Series Solo Boiler Installation and Operation Manual.”
❷
CH Setpoint Temperature Parameter Selection
Table 2. Parameter 01 (Outdoor Reset Curve) as shown in the “I-Series Boiler
Installation and Operation Manual” (Combi and Solo versions).
Description: The boiler has been adjusted to allow a greater maximum DHW draw while operating
simultaneously between CH and DHW.
Model(s): Combi
Manual
Reference:
For more information, refer to section “12.7 Simultaneous CH and DHW Operation” in
the “I-Series Combi Boiler Installation and Operation Manual.”
❸
Greater Domestic Hot Water (DHW) Allowed in Simultaneous CH/DHW Operation