Warmhaus RecoWa, Installation Manual And User'S Manual

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7.4.2. Electrical Connections of Combi Boiler Control Unit
A
PCB
PCB
PCB
Brown Red
1 4
3
4
1
2
Opentherm
Connection
On/Off Control
C
(OT)
C
B
THERMOSTAT BRIDGE
CONNECTION
OPENTHERM
OUTSIDE SENSOR
OUTSIDE
SENSOR
WHITE
ORANGE
WHITE
GREEN
GREEN
ORANGE
RED
BROWN
230V AC
50Hz
TERMINAL
1 4
WHITE
DATA TRANSMISSION CABLE
PLUG CABLE (230V AC 50Hz)
WHITE
RECOWA
COMBI BOILER CONTROL
Connecting the Receiver-
Modem Unit to the combi
boiler mainboard
MAIN-
BOARD
TERMINAL
DATA CABLE
WHITE
A
GREEN
ORANGE
WHITE
RED
BROWN
Brown Red
ATTENTION: B BRIDGE CABLE MUST BE UNPLUGGED AT ON-OFF AND OPENTHERM ROOM THERMOSTAT CONNECTIONS.
RED
BROWN
Figure 7. Connecting the Combi Boiler Control Unit to the Combi Electronic Board
After removing the back panel, connect
the plug power cord supplied in the
product package to the power connection
terminal (230 V AC) on the lower-left side
of the rear panel, however, do not plug
the power plug into the socket until all
connections have been completed!
Before connecting to the combi boiler,
check 2 x Red OpenTherm communication
cables in the 4 x 0.35 mm2 cross-
section four-core cable as shown in the
connection schematics. Connect the OT
on the bottom right of the RF Module to
[1 -2] connectors, and other 2 x brown
cables to the ON-OFF [3 - 4] connectors.
To complete OpenTherm connection with
the Warmhaus combi boiler, connect ends
of the red cables to the orange ends of the
connector. Connect the other brown cable
ends of the data cable to the green cable
ends of the connector. Remove orange
connectors and bridge B on the combi
boiler control panel.
WARNING: Make sure that the ON-
OFF cable bridge in the combi boiler is
removed!
After completing the connections;
• Close the boiler panel cover and
mount the Remote Control unit
connected to the boiler in a vertical
position to ensure a distance of
minimum 15 cm from the combi
boiler. (Make sure that this plane
does not have any materials such as
iron sheets, etc. that will prevent RF
communication!)
• When the plug of RF MODULE is
plugged into the socket, the led lamp
will light up,
• Switch on the combi boiler and
supply power to the boiler.