Rinnai REU-2007W Service Manual page 7

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The light-weight, slim, and compact form enable easier, improved appearance installations. The
remote controls (where fitted) are connected to the appliance by 2-core non-polar cable, ensuring
easy wiring and eliminating misconnection problems.
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Low noise level design enables these appliances to be installed in units, flats, townhouses, and other
high density residential areas with little concern about noise disturbances.
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Various safety devices controlled by a micro-computer ensure complete safety. Also, the anti-frost
device (where fitted), automatically prevents the water inside the appliance from freezing by using
small electrical ceramic heaters connected to the pipework at strategic locations.
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Direct electronic ignition to the main burner eliminates wasteful pilot gas consumption. The
combustion fan rpm is proportionally controlled with gas consumption. This maintains high energy
efficiency as the gas consumption changes.
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The water supply capacity varies proportionally from 2.7 L/min to 24 L/min. A suitable volume of
hot water can be supplied throughout all seasons by the water flow control device and water flow
servo mechanism. The REU-2408 and REU-2008 models will supply up to 21 L/min, and REU-2424
model will supply up to 24L/min, (maximum unmixed), controlled by an automatic electro-
mechanical water flow device. The REU-2007 model will supply up to 15 L/min at water
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temperature of 15 C, (maximum unmixed), controlled by a mechanical water flow control device.
See page 17 for precise details on water flow.
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With a remote control connected, the hot water control range is between 37 C and 55 C (in 13
steps). With or without a remote control connected the outgoing hot water temperature can be fixed
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to a maximum of 40 C, 43 C, 50 C, 55 C, 60 C, 65 C or 75 C and in the case of the Heavy
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Duty 20 with no remote, 85 C can be reached. This means that the Infinity Series can be set to
comply with various State laws on temperature control in homes, child care centres, and elderly care
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centres. The maximum temperature selectable on the bath remote control is 50 C (this is a safety
feature).
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All Infinity models incorporate a device to prevent the hot water temperature exceeding the pre-set
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temperature by more than 3 C.
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With the remote control(s) connected, the pre-set water temperature can only be altered between
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37 C and 43 C while the hot water is flowing. This helps to avoid inadvertently increasing the
temperature to a hazardous level whilst someone is in the shower. While the water is flowing, the
remote control(s) can be turned off, but not on again.
Infinity REU-2007,2008,2408,2424 - 2 - ©Rinnai