REMEHA Quinta Pro Installation, User And Service Manual page 38

6 Installation
Fig.32 Switch jumper (1)
1
2 %
Fig.33 SCU-S02 PCB
F 4AT
SCU-SO2
X1
X3
Pump 3wV EgV
N L N C D N L
Pump 3wV EgV
N L N C D N L
38
1 1
AD-0000056-01
D3
X2
X4 X5
Status
Nc C No Tsol Gps Hru
Nc C No Tsol Gps Hru
AD-0000057-01
Analogue output (0–10 V)
This feedback can be based on temperature or heat output. The two con­
trols are described briefly below.
A jumper (1) on the interface is used to select either temperature ( ) or out­
put (%).
Tab.21 Temperature message
Jumper 1 Output signal (V)
0.5
1–10
Tab.22 Output message
Jumper 2 Output signal (V)
0
% 0.5
2.0–10
(1)
(1) Dependent on the minimum modulation depth (set speeds, standard 20%)
Connection options for the PCB (SCU-S02)
If the boiler is fitted with the PCB (SCU-S02), then this PCB is automatical­
ly recognised by the boiler's automatic control unit.
Note
On removing this PCB, the boiler will show error code
prevent this error, an auto-detect must be carried out after remov­
ing this PCB.
For information on carrying out an auto-detect, see: Carrying out an auto-
detect, page 53
The status indicator D3 at the top right of the PCB indicates the status:
Continuous signal: PCB working normally
Flashing signal: no connection
No signal: no power or faulty PCB (check the wiring)
Control of external CH pump (pump)
An external central heating pump can be connected to the pump terminals
of the connector. The maximum power consumption is 400 VA.
Control of external three-way valve (3wV)
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
The three-way valve is connected as follows:
N = neutral
C = central heating
D = calorifier
Control of external sanitary hot water pump (3wV)
It is also possible to connect an external DHW pump to the terminals 3wV.
Connect the pump as follows:
N = N pump
D = L pump
= PE pump
Temperature °C Description
– Alarm
10–100 Supplied tempera­
ture
Heat output (%) Description
0–15 Boiler off
15–20 Alarm
20–100 Supplied heat output
.
123157 - v.07 - 10082015
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