Connection Possibilities For The Pcb (Scu- X01); Connection Possibilities For The Pcb (Scu- X02) - REMEHA Quinta Pro 30 Installation And Service Manual

4. Installation
SCU-X01
X3
Status
Nc C No
Nc C No
X1
F 2AT
SCU-X02
X3
3wV
N C
3wV
N C D
40
X2
X2a
X4
Status
Nc C No
Nc C No
T002880-A
1 C 2
Jp1
X2
X2a
X4
D
3wV
N L C
N L C
T002884-A
4.9.5. Connection possibilities for the PCB (SCU-
X01)
The control PCB SCU-X01 has two potential-free contacts, which can
be set as required. Depending on the setting, a maximum of two
messages about the status of the boiler can be transmitted. See table
below:
No. C-NO
0 Alarm Standby
1 Alarm inverted = fail safe Active Alarm inverted = fail safe Standby
2 Burning Standby
3 Burning inverted Active
4 Burning low Standby
5 Burning high Standby
6 Service report Standby
7 CH-mode Standby
8 DHW-mode Standby
9 CH-pump Standby
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 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 = domestic hot water
Quinta Pro 30 - 45 - 65 - 90 - 115
C-NC
Alarm Active
Burning Active
Burning inverted Standby
Burning low Active
Burning high Active
Service report Active
CH-mode Active
DHW-mode Active
CH-pump Active
09/06/2011 - 123157-AF