Electrical Connections - Riello RESIDENCE KIS Series Installer And User Manual

RESIDENCE
b
When installing it is ABSOLUTELY NECESSARY to provide the
spaces necessary for the introduction of the instrument for analysing
the combustion. We have provided a sample diagram where the
distances between the boiler and wall unit /recess have been
obtained using an instrument with a length of 300 mm. Longer
instruments require more space.
3.7 Installation of condensate drain pipe (Fig. 9)
b
Before starting the boiler, even just temporarily, the SRD device
supplied must be installed.The manufacturer does NOT accept
liability for damage to persons or objects caused by the boiler
operating without the SRD device being installed correctly.
For the installation proceed as follows:
- remove the plug (T) from the siphon
- fix the SRD device to the siphon, placing the gasket in-between, screwing
it on all the way and checking its seal
- connect the condensate discharge pipe supplied as standard with the
product, then drain the condensate into a suitable drainage system in
compliance with current norms.
b
If it is not possible to fit the SRD device due to the interference
with other objects under the boiler, it is possible to fit it in a different
position by inserting a connecting pipe between the SRD device and
the siphon in order to provide a fully airtight seal. The SRD device
should always be positioned VERTICALLY in order to ensure it
functions correctly
3.8 Positioning the wall-mounted boiler and hydraulic
connections (Fig. 10)
The boiler comes as standard with a boiler support plate. The position and
dimension of hydraulic fittings are shown in the detail drawing.
For the assembly, proceed as follows:
- fasten the boiler support plate (F) to the wall and use a spirit level to
make sure it is perfectly horizontal
- mark the 4 holes (ø 6 mm) envisaged for securing the boiler support
plate (F)
- make sure that all measurements are exact, then drill the wall using drill
tips with the diameters indicated above
- fix the plate with the built-in template (G) to the wall.
- fix the safety valve pipe supplied in the documentation envelope onto the
coupling of the safety valve (S), then connect it to an adequate discharge
system.
Make the hydraulic connections:
M heating delivery
AC hot water outlet
G gas
R heating return line 3/4" M
AF cold water inlet
S safety valve
3.9

Electrical connections

Low voltage connections
Make the low voltage connections as follows:
ƒ use connectors supplied as standard:
ƒ 4-poles connector for BUS 485 (- A B +)
ƒ 8-poles connector for TBT - TA -OT+ - SE
CN4
- A B +
CN8
TBT
TA
Utilizzare contatto privo di tensione
6
3/4" M
1/2" M
3/4" M
1/2" M
1/2" M
OT+ SE
Voltage free contact input
CN4 (- A B +) Bus 485
CN8 TBT Low temperature limit thermostat
TA Room thermostat (voltage free contact input)
OT+ Open therm
SE Outdoor temperature sensor
bianco white
nero black
ƒ carry out the electrical wiring connections using the desired connector
as shown in the detailed drawing
ƒ once the electrical wiring connections have been made, correctly insert
the connector into its counterpart.
b
We recommend using conductors with a section no larger than 0,5 mm
b
In the event of TA or TBT connection, remove the related jumpers on the
terminal board.
b
If the low voltage electrical connection box is not connected the boiler
does not ignite.
CN8
CN4
OTBus remote control connection
When an OTBus remote control is connected to the system, the boiler display
shows the following screen:
In particular on the boiler display:
ƒ it is no longer possible to set the boiler OFF/WINTER/SUMMER status
(it is set by the OTBus remote control)
ƒ it is no longer possible to set the domestic hot water setpoint (it is set by
the OTBus remote control)
ƒ it is not possible to activate the COMBUSTION CONTROL function if the
boiler is connected to a remote OTBus
In addition:
ƒ The domestic hot water setpoint is displayed in the INFO menu
ƒ The combination of the A+B keys remains active for the setting of the
DOMESTIC HOT WATER COMFORT function.
ƒ The heating setpoint set on the boiler display is used only if there are
heat requests from the TA and the OTBus remote control does not have
a request if the parameter DO_AUX1 = 1 or DO_AUX1 = 0 and the
jumper on 1-2pin of X21 is closed.
We can see that it is not possible, with the OTBus remote control connected,
to change the values of the parameter MAIN ZONE ACTUATION TYPE and
ZONE1 ENABLE to 1.
Note: an OT+ remote control cannot be connected if the system al-
ready has BE16 interface boards. For the same reason it is not pos-
sible to connect BE16 boards if there is already an OT+ device.
In this case the system gives the following error message:
<<OT+ CONFIGURATION ERROR>>.
High voltage connections
The connection to the mains supply must be made via a separation device
with an omnipolar opening of at least 3.5 mm (EN 60335/1 - category 3).
The appliance works with alternating current at 230 Volt/50 Hz, and is in
compliance with Standard EN 60335-1.
It is obligatory to make the connection with a safe ground/earth, in
compliance with current directives.
.
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