installation &
operating instructions
Design Envelope 4302 ivs and 4382 ivs vertical
in-line pumping unit with integrated controls
37
iv constant curve mode – bms signal
When the Building Management System is to be used for
speed control it is necessary to disable sensorless control
and provide the unit with a 0-10vdc speed reference signal.
iii constant curve mode – potentiometer
To control the pump based on a 0-10v potentiometer signal
use the connections below.
iv.i constant curve mode - bms signal
It may be required to run the pump at full speed without
automatic speed control (eg during system commissioning).
This can be achieved without programming changes by
making the connections below.
11.8.4 remote lcp keypad wiring
For large ivs units with remote lcp keypad, see wiring
arrangement below.
lcp wiring arrangement
terminal wire color
1 Green
2 Brown
3 Red
4 Yellow
5 Black
6 Orange
7 Blue
8 Purple
9 Grey
2 (r1 n/o)
3 (r1 n/c)
1 (r1 com)
5 (r2 n/o)
6 (r2 n/c)
4 (r2 com)
0-10v Signal from
bms
Input
t53 (common t55)
Output Frequency
4-20mA Analogue Out
12 (+24v )
20 (0v )
18 (d in)
Start Signal
Running Output
Alarm Output
19 (d in)
27 (d in)
29 (d in)
32 (d in)
33 (d in)
50 (10v)
53 (Ain)
54 (Ain)
55 (0v )
42 (Aout)
39 (Aout)
12 (+24v )
20 (0v )
18 (d in)
Start Signal
Running Output
Alarm Output
19 (d in))
27 (d in))
29 (d in))
32 (d in))
33 (d in))
50 (10v)
53 (Ain)
54 (Ain)
55 (0v )
42 (Aout)
39 (Aout)
2 (r1 n/o)
3 (r1 n/c)
1 (r1 com)
5 (r2 n/o)
6 (r2 n/c)
4 (r2 com)
0-10v Derived from
1k
Potentiometer into Input
t53 (common t55)
Output Frequency
4-20mA Analogue Out
Low Water Signal
2 (r1 n/o)
3 (r1 n/c)
1 (r1 com)
5 (r2 n/o)
6 (r2 n/c)
4 (r2 com)
Output Frequency
4-20mA Analogue Out
12 (+24v )
20 (0v )
18 (d in)
Start Signal
Running Output
Alarm Output
19 (d in)
27 (d in)
29 (d in)
32 (d in)
33 (d in)
50 (10v)
53 (Ain)
54 (Ain)
55 (0 v)
42 (Aout)
39 (Aout)
Link
10vdc (t50 ) into
Analogue Input t53
Low Water Signal