Installation Manual

62 Rinnai I-Series Condensing Boiler Solo Manual
NOTE
When DIP Switch 3 is in the OFF (default) posion Parameter 32 becomes available. The opon to
select an indirect tank pump (default) or a 3-Way Valve with the boiler pump for recovering the
indirect tank becomes available. If the 3-Way Valve opon is desired, only 120VAC 3-Way Valves
may be used. Do not use a 3-Way Valve if simultaneous CH and DHW via an indirect tank is desired.
1. Remove the boiler’s front panel by removing the four screws that secure the panel.
2. Locate the PC Board (lower le side of unit).
3. Connect the indirect tank thermistor to the terminals shown below using minimum 18 AWG
wiring to the two terminals provided in the enclosure.
4. Locate the DIP switches on the PC Board (see below). Ensure that DIP switch 3 is in the OFF
(default) posion (this ensures the boiler will operate the indirect tank recirculaon pump
connected to the Pump 2 connecon).
5. Adjust DIP switch 4 to one of the following:
• OFF (default) for thermistor control of the indirect tank
• ON for thermostat control on the indirect tank
6. Set parameters 30-35 as appropriate for your applicaon (see the Parameter Sengs Table for
more informaon).
Indirect Tank Thermistor Connecon
PC
Board
DIP Switches
ON
OFF
Indirect Tank
Thermistor Connecon
Indirect Tank Pump
Connecon
Indirect tank pump
to be wired to boiler.
• Refer to secon “9.2 Electrical Connecons” for more informaon on the boiler’s electrical connecons.
• Refer to secon “12.3.8 PC Board DIP Switches” for more informaon on the boiler’s DIP switches.