Installation Manual

Rinnai I-Series Condensing Boiler Solo Manual 61
Topics in this secon
• Guidelines
• Indirect Tank Control Opons
• Indirect Tank Electrical Connecons
• Simultaneous CH and DHW Operaon
• Indirect Tank Parameter Sengs
• Piping Diagram for a Basic DHW Installaon
8
• The piping (including soldering materials)
and components connected to this
appliance must be approved for use in
potable water systems.
• Purge the water line to remove all debris
and air. Debris will damage the boiler.
• DHW must not be connected to a system
that was previously used with a non-
potable water heang appliance.
• DO NOT introduce toxic chemicals such as
those used for boiler water treatment to
the potable water used for central heang
into the DHW system.
Hot water can cause rst degree burns
with exposure for as lile as:
• 3 seconds at 140°F (60°C)
• 20 seconds at 130°F (54°C)
• 8 minutes at 120°F (49°C)
Children, disabled, or elderly are at
highest risk of being scalded. Feel water
before bathing or showering.
Water temperatures
over 125° F (52° C)
can cause severe
burns or scalding
resulng in death.
DANGER
This boiler provides DHW through an indirect
tank. The boiler incorporates temperature
control features for the boiler and indirect
tank controls, including indirect tank heang
priority.
The indirect tank temperature is controlled
through either a thermistor (default) or
thermostat.
• Thermistor (Default): In thermistor
control of the tank, 180°F (82°C) is the
maximum supply temperature. The
higher the supply temperature to the
tank, the quicker the tank will heat up.
If 180°F (82°C) is too high, select other
temperature sengs as appropriate.
When thermistor control is selected,
Parameter 31 becomes available; this
parameter selects the dierenal
temperature between the indirect tank
setpoint temperature and the
recognized temperature of the
thermistor. The smaller the value, the
more frequently the indirect tank will
call for heat.
• Thermostat: If thermostat control of
the tank is desired, the thermostat
connects to the T/T2 connecon on the
boiler PC board. In thermostat control
of the tank, 180°F (default) (82°C) is the
maximum supply temperature. The
higher the supply temperature to the
tank, the quicker the tank will heat up.
If 180°F (82°C) is too high, select other
temperature sengs as appropriate.
Ensure the indirect tank supply
temperature is 18°F (10°C) higher than
the set point temperature of the tank
thermostat.
HOT
BURN