Honeywell
• 49
C
ONTROL
UNIT
6.1
Control unit cabling
The basic control unit connections are presented in Figure 49 below. The control board is
equipped with 22 fixed control I/O terminals and the relay board with 8 or 9. The relay board is
available in two different configurations (see Table 16 and 17). All signal descriptions are given
in Tables 15 to 17.
Figure 49.
6.1.1
Control cable sizing
The control cables shall be at least 0.5 mm
2
screened multicore cables, see Table 7. The max-
imum terminal wire size is 2.5 mm
2
for the relay and other terminals.
Find the tightening torques of the control and relay board terminals in Table 14 below.
Table 14. Control cable tightening torques
Terminal screw
Tightening torque
Nm
lb-in.
All I/O and relay terminals
(screw M3)
0.5
4.5
Basic control terminals
21 22 23
24 25 26
32 33
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 30
B
A
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