Connection Possibilities For The Pcb (Scu- X02) - REMEHA Quinta Pro 30 Installation And Service Manual

4. Installation
X1
F 2AT
SCU-X02
X3
3wV
N C
3wV
N C D
44
1 C 2
Jp1
X2
X2a
X4
D
3wV
N L C
N L C
T002884-A
4.9.6. Connection possibilities for the PCB (SCU-
X02)
The connection options for the control PCB (SCU-X02) are described
in the paragraphs which follow.
n Control of external three-way valve (3wV (230 VAC)
The external three-way valve (230 VAC) can be used when
connecting an indirectly heated calorifier. The neutral position of the
three-way valve can be set using parameter p34.
The three-way valve X3 is connected to the X3 terminals of the
connector. The three-way valve is connected as follows:
4 N = neutral
4 C = central heating
4 D = tank
n Control of external three-way valve (3wV (24 VDC)
The external three-way valve (24 VDC) can be used when connecting
an indirectly heated calorifier. The neutral position of the three-way
valve can be set using parameter p34.
The three-way valve X4 is connected to the X4 terminals of the
connector. The three-way valve is connected as follows:
4 N = neutral
4 C = central heating
4 D = tank
n Position of the reversal valve (JP1)
The position of the three-way valve can be set using a jumper at
JP1.
4 Jumper 1: The settings for central heating and sanitary hot water
are the default settings.
4 Jumper 2: The settings for central heating and sanitary hot water
are reversed.
Quinta Pro 45 - 65 - 90 - 115
080310 - 123157-AA