Check Of Combustion Parameters; Additional Abilities (Options); Connection Of Room Thermostat; Remote Control Connection - BaltGaz NEVALUX-8224 User Manual

Wall-hung combi gas boiler with forced heat carrier circulation
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CAUTION! Prevent the heat carrier and water from getting onto the boilers electronic
components!
CAUTION! If Propylenglycolum is used n the heating system as a heat carrier, it is
necessary to effectuate special measures in order to fill the boiler and heating system, and
also periodic control of Propylenglycolum's density. The heating system's filling and infeed
must in this case be effectuated by a technical specialist of a service organization, using
special equipment.

10.2. Check of combustion parameters

The boiler permits to effectuate the heating-performance parameters analysis not disturbing the
boiler's settings. For this it is necessary to use the function of gas analysis (measuring of output
gases temperature and of the content of carbonic oxide in them). Before activating this function
(see p. 13.3.2, page 31) it is necessary to make sure that the boiler is switched on and operates in
the heating mode or in the combined mode, and the smoke exhauster pipe has an orifice for the
gas sensor input on the straight section on a distance of not less than 250mm from the gas
removal device outlet. During the combustion process analysis the heat carrier overheating
protection system remains active, when the heat carrier reaches the temperature of 88
boiler will pass to standby mode. After finishing the measurements the gas sensor inlet orifice
must be made airtight.

10.3. Additional abilities (options)

10.3.1. Connection of room thermostat

For more effective operation of the boiler it has a possibility to connect a room thermostat,
which is installed in the heated premise. In order to install the thermostat it is necessary to
remove the plug wire from the contacts 28 and 29 (connector M10) from the room thermostat's
connector (see Annex III, page 66) and place the cables with a terminal strip from the contacts
26 and 27 into the contacts 28 and 29. Then you must effect the connection of interconnecting
wires of the room thermostat to the terminal strip (the thermostat's wires' connection polarity
does not matter). The plug wire must be given to the boiler's owner so that he keeps it.
The room thermostat is not included in the standard supply package and is purchased separately
if desired by the customer. The cable for connecting the room thermostat to the boiler is not
included into the thermostat's supply package. The main requirements for choosing the cable
are:
the cable's maximum length is 30 meters;
-
the flexible copper multiple-core cable with cross sectional area of 0,5...1,5 mm
-

10.3.2. Remote control connection

The boiler permits to use a remote-control console (hereinafter referred to as "remote control").
The remote control has got an inbuilt temperature sensor and permits to control the boiler from a
distance (not more than 30 meters from the boiler) and set the same commands as from the
control panel. Also the remote control permits to control the boiler's operation, keeping the
temperature set by the user in the premise. The remote control is connected to the connector M8
through the contacts 40 and 41 of the electronic board (see Annex III, page 66). While
connecting the remote control it is necessary to remove the room thermostat's connector from
the M10 connector and give it to the boiler's owner so that he keeps it (see p.10.3.1).
It is acceptable to connect the remote control together with the external (outdoor) temperature
sensor (see p. 10.3.3). Herewith the boiler regulates the temperature in the CH either with the
o
C the
2
.
Technical staff manual

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