Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers
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Document 27 / 602
E
N02 │ 2013-11-27
Functions, settings
Function
3-7
3
Function
Value Description of outputs
Outputs
RIO
0
The internal regulation and control functions are
disabled. All outputs are controlled via the RIO FBox
or via S-Bus registers.
none
2-pipe H
1
2-pipe heating application.
Y1(Y3)
2-pipe CO
2
2-pipe change-over application. Where ChangeOver
input == 0, the controller is in heating mode, otherwise
in cooling mode. (change-over register: 38)
Y1(Y3)
2-pipe C
3
2-pipe cooling application.
Y1(Y3)
4-pipe H/C
5
4-pipe heating/cooling application. The heating valve
is controlled via Y1(Y3), and the cooling valve via
Y2(Y4).
Y1(Y3),
Y2(Y4)
2×2-pipe H, Y2=Y1
7
2-pipe heating application with 2 heating valves
connected in parallel. The first heating valve is
controlled via Y1(Y3), and the second heating valve
via Y2(Y4).
Y1(Y3),
Y2(Y4)
2×2-pipe CO, Y2=Y1
8
2-pipe change-over application with 2 valves
connected in parallel. The first valve is controlled via
Y1(Y3), and the second valve via Y2(Y4).
Y1(Y3),
Y2(Y4)
2×2-pipe C, Y2=Y1
9
2-pipe cooling application with 2 valves connected in
parallel. The first valve is controlled via Y1(Y3), and
the second valve via Y2(Y4).
Y1(Y3),
Y2(Y4)
The application selected determines the correct settings for the valve outputs and
the function set for input E2 (see "Settings, hardware").
