Rinnai Q175SN - Manual (Page 8)

Operating instructions Rinnai Q-Series
8
Explanation of the function buttons
1
3
4
5
6
2
7
8
Only qualified personel who are trained for
these boilers are permitted to make alterations
in the controller to chronolize the boiler to the
installation.
1. Display.
See following pages for further information.
2. ON-OFF Switch
This switch turns the power supply to the boiler
on or off.
3. Central Heating program button.
Switching the Central Heating on or off (Led
on/off);
4. Hot Water program button.
Switching the Domestic Hot Water (DHW)
facility on or off (Led on/off);
5. Pump program button.
When the pump program LED is ON, the pump
is switched into a continuous circulation mode.
When the pump mode is switched OFF, LED is
off the pump is control by the boiler processor.
In most situations it is best to leave the pump
mode OFF and let the boiler control cycle the
pump as needed.
During freezing temperatures it is possible (when
there is no outside sensor connected), to manually
place the circulation pump in constant circulation
mode, thus reducing the chance of freezing pipes
(garage, attic or other cold spaces / rooms) which
are sensitive to frost.
When the pump is switched
on continuously it can lead
to undesired heating up of
the central heating system
during the summer.
NOTICE
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NOTICE
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NOTICE
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