7 Electrical connection
7.2.4 Malfunction (X29)
Potential-free relay output, for example, to switch a
warning device (optical/acoustic). Triggered in the
event of a malfunction on the boiler.
!
CAUTION
– The connection is floating and
has a maximum load of 5 A.
7.2.5 External request (X51)
Input, i.e., the SOLARFOCUS boiler can be started
by an external control.
!
CAUTION
–The connection must be potential-
free.
7.3 Cable ducts on the boiler
►
Feed the cable through opening
1
into the boiler.
►
Fix on the cable ducts
2
and
3
.
Abb. 2-17
7.4 Install EMERGENCY OFF switch
Austria: Firing systems for which a boiler room is
required must be equipped with an EMERGENCY
OFF switch, which must not have an effect on the
room lighting. It must be situated immediately outside
the access door and labelled clearly and visibly. This
switch may also be located inside the boiler rooms,
immediately next to the access doors, but only if the
boiler rooms can be accessed from outdoors.
►
Connect other components integrated in the
safety chain in series ("loop through")
7.5 Sensor resistance table
Type
KTY 81-110 PT100 PT1000 KTY 81-210
Tolerance
± 3 %
± 0.7 % ± 1 %
± 3 %
°C
Ohm
Ohm
Ohm
Ohm
-20
684
92.16
922
1367
-10
747
96.09
961
1485
0
815
100
1000
1630
10
886
103.9
1039
1772
20
961
107.79
1078
1922
25
1000
109.74
1097
2000
30
1040
111.69
1117
2080
40
1122
115.54
1155
2245
50
1209
119.4
1194
2417
60
1299
123.24
1232
2597
70
1392
127.07
1271
2785
80
1490
130.8
1309
2980
100
1696
138.5
1385
3392
120
1915
146.06
1461
3617
140
2124
153.58
1536
4186
150
2211
157.31
1573
4280
160
-
161.04
-
-
170
-
164.76
-
-
180
-
168.46
-
-
190
-
172.16
-
-
7.6 Electrical fuses
DANGER
-
There is a risk of fatal electric
shocks when working on electrical
components of the system
–
Work may be performed only by a qualified
electrician.
–
Applicable standards and regulations must
be observed.
Position of the fuses on the boiler power unit
Installation manual
ecotop-zero, ecotop-light
25
