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ACCESSORIES
2. Indirect Storage Tank Sensor Kit
Heating Only boiler can be electrically connected to
Indirect Storage Tank.
Diagram of hydraulic connection of external indirect
storage tank is shown below.
Connect DHW priority sensor to terminals #9 and #10 on
terminal block M2. The element of the sensor must be
inserted in the sensor well located on the indirect storage
tank.
Verify the exchange capacity of the storage boiler coil
is appropriate for power of the boiler. Adjust DHW
temperature (+95°F...+140°F / +35°C...+60°C) by
pressing buttons on boiler control panel.
Boiler Control Panel
Note
Parameter PO3 for Heating Only boiler, with
no indirect tank remains Factory Set at 08. No
change is required.
If adding an Indirect Tank with a sensor
to Heating Only Boiler - change PO3
parameter from 08 to 05.
If adding an Indirect Tank with a thermostat
to Heating Only Boiler - change PO3
parameter from 08 to 04.
See Section 9, Parameter Settings, in boiler’s
Installation, Operation, and Maintenance
Manual.
Parameter PO3 for COMBI boiler factory set
at OO requires no change.
S
Indirect DHW Tank
Sensor Wiring
Indirect DHW Tank
Thermostat Wiring
PN 240011430 REV G, [03/31/18]
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