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SAFETY INSTRUCTIONS
The manufacturer Rotex accepts no liability for damage or injury caused by the failure
to (strictly) observe the safety instructions, or negligence during the installation of the
Rotex RKOMBG*AAV1 wall-mounted gas boiler and any associated accessories.
IMPORTANT
This product is intended for domestic use only.
This device is not intended for use by people (including children) with reduced
physical, sensory or mental abilities, or lack of experience and knowledge, unless they
are given supervision or instructions on the use of the device by a person who is
responsible for their safety.
The instructions are stated separately for the various disciplines.
The entire installation must meet the applicable local technical and (safety)
instructions, for the gas installation, the electrical installation, smoke extraction
installation, drinking water installation, and central heating installation.
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UNIT DESCRIPTION
2.1
General
The Rotex RKOMBG*AAV1 wall-mounted gas boiler is a closed unit. The unit is
intended to provide heat to the water of a CH-installation and the domestic hot water
installation.
The air supply and the combustion gas outlet of the RKOMBG*AAV1 can be
connected to the unit by two separate pipes, or by a concentric connection. The unit
was tested in combination with the combi feedthrough, but the unit may also be
connected to combi feedthroughs which meet the universal test standards for combi
feedthroughs.
The unit can be connected to an assembly bracket if required, a frame with top
connection, and various installation sets. These are provided separately.
The Rotex RKOMBG*AAV1 wall-mounted gas boilers have the CE quality mark,
electrical protection class IP44.
It is possible to use the unit solely for warm water, or solely for heating. The system
which is not in use, does not need to be connected (see par. 7.2).
The unit is delivered for natural gas (G25) as a standard. On request, the unit can also
be provided for propane (G31).
2.2
Functioning
The Rotex RKOMBG*AAV1 wall-mounted gas boiler is a modulating high-efficiency
boiler. This means that the power is modulated to suit the required heat demand. In the
aluminum heat exchanger two separate copper circuits are integrated.
The separate circuits for CH and warm water allow the heating and warm water supply
to function independently. The hot water supply takes precedence over the heating.
Both cannot work at the same time.
The unit is fitted with an electronic boiler controller machine, which operates the fan
and the modulating pump at every heat requirement of the heating or the warm water
supply, opens the gas valve, ignites the boiler controller, and continuously monitors
and regulates the flame, depending on the requested power. The pump is only
operated during a heat request from the heating, depending on the requested power.
2.3
Operating modes
The operating mode of the unit is indicated by means of a code on the service display
of the operating panel.
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Off
The unit is not in operation, but is connected to the electricity supply. No response is
given to requests for domestic hot water or CH water. The unit frost protection is
active. This means that the pump will start running and the exchanger will be heated
up if the temperature of the water in the system drops too far.
If the frost protection intervenes, the code
The pressure in the CH installation can also be read from the temperature display in
this operating mode (in bar).
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will be displayed (heating up exchanger).
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