11 xTechnical data
69
FA ROTEX A1 BO - 10/2007
SW1 Main switch
S1 STL fault
S2 Burner fault
P
K
Pump P
K
P
Z
Circulation pump
3W-UV 3 way diverter valve
P
L
Storage tank charging pump
P
MI
Mixer circuit pump
MI Mixer motor
MK Mixer circuit
BUS Connection for THETA room station
or other THETA controller or ALPHA
room temperature control
RM Resistance for modem contact
(value depends on desired function)
t
MI
Mixer circuit flow temperature
sensor
t
AU
Outside temperature sensor
t
WW
Storage temperature sensor
t
ET
Flue gas temperature sensor
t
R
Return flow temperature sensor
t
V
Flow temperature sensor
STL Safety temperature limiter
Connection cable colours
bl blue
br brown
ge yellow
gn green
gr grey
rt red
sw black
ws white
n.b. Contact not assigned
Fig. 11-6 Circuit diagram for oil condensing boiler A1 BO (shown with ROTEX THETA 23R Control)
gn/ge
gn/ge
gn/ge
bl
bl
br
br
br
sw
bl
gn/ge
gn/ge
bl
sw
ws
gr
br
bl
br
br
bl
bl
bl
bl
br
br
br
bl
br
rt
sw
rt
gn
bl
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
bl
br
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
n.b.
ge/gn
br
n.b.
rt
sw
J15
J6
J1
J14
J2
J3
J7
J4
J8
J10
J16
J13.B
J13.A
X1X2
X3 X4
THETA 23R
J9
J5
SW1
S1
S2
S1
230V/
50Hz
P
K
P
Z
P
L
P
MI
t
MI
t
AU
t
AG
t
R
t
V
t
WW
3W-UV
S2
MK
MK
COM
BS
SF
AG
BUS
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