Xylem IM182 Balanced Flow User Manual
Page 9
9
Scenario
Pressure
Jumper
Switch
Controller
Status
Switch Status
Transducer
Position
Input
Status
Indicator
Indicator
Constant
Bottom
Open
Disabled
Solid Green
Solid Red
pressure operation
Connected
Bottom
Closed
Constant pressure
Blinking green if flow
Off
else solid green
Level or pressure
Not
Top
Open
Disabled
Solid Green
Solid Red
switch control
Connected
Top
Closed
Run Full Speed*
Blinking green
Off
* See description of Maximum Speed Switch and Motor Overload Setting Switch for their effect on Full Speed value.
Table 5: Possible Combinations for TRANSDUCER, JUMPER AND SWITCH INPUT
The lengths in each of the Wire Sizing tables represent 100% of the allowable voltage drop when motor is
running at full load. When sizing wire, the voltage drop of each wire segment must be included. The total
must not exceed 100% of the allowable drop. Take for example a 1.5 HP motor with a distance from Service
Entrance to Controller of 100' and 500' between the Controller and Motor.
• Service Entrance to Controller = 100' of 10 AWG (100/455) = 22 % (455' is from the S.E. to
Controller chart)
• Controller to Motor
= 500' of 12 AWG (500/709) = 71 % (709' is from the Controller to
Motor chart)
Total Drop (must be
≤ 100%) 93 %
If the distance from the Controller to Motor was 600' (600/709) = 85% + 22% = 107%, we would need to
use #10 wire for that segment, ex. 600/1126 = 53% + 22% (for 100' of #10) = 75% which is acceptable.
It is also acceptable to use different wire sizes for the Buried and Well sections of wire.
Service Entrance to Controller
Controller Motor
Copper Wire Size 75ºC Insulation Exposed to a Maximum of 50ºC (122ºF) Ambient Temperature ②
Input
HP
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
4/0 250
300
350
400
500
½
366
583
925 1336 2107 3345 4175 5267 6637 8364
¾
279
445
706 1020 1608 2552 3186 4019 5065 6383 8055
1
226
360
571
824 1300 2064 2576 3250 4095 5161 6513 8201
1½
*
286
455
657 1036 1644 2052 2589 3262 4111 5188 6533 8236 9710
2
*
*
331
478
754 1197 1495 1886 2376 2995 3779 4759 5999 7073 8455 9852
3
*
*
246
355
561
890 1111 1401 1766 2225 2808 3536 4458 5256 6283 7321
8343
5
*
*
*
218
343
545
680
858 1081 1363 1720 2165 2730 3219 3847 4483
5109
6348
230V
1 PH
Controller to Motor
Controller Motor
Copper Wire Size 75ºC Insulation Exposed to a Maximum of 50ºC (122ºF) Ambient Temperature ②
Input
HP
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
4/0 250
300
350
400
500
½
905 1442 2290 3306 5213 8276
¾
690 1100 1748 2523 3978 6316 7884 9945
1
558
890 1413 2040 3216 5106 6375 8041
1½
445
709 1126 1625 2562 4068 5078 6406 8072
2
324
516
820 1184 1866 2963 3699 4666 5879 7410 9351
3
241
384
609
880 1387 2202 2749 3467 4369 5506 6949 8750
5
*
235
373
539
849 1348 1683 2123 2675 3372 4255 5358 6755 7964 9520
①
Reduce lengths by 13% for 200 V systems.
* Wire does not meet the N.E.C. ampacity requirement.
②
Lengths in bold require 90º C wire.
Shading indicates 40º C maximum ambient.
230V
3 PH
Table 4: Wire Sizing
Maximum Cable Lengths in Feet to Limit Voltage Drop to 5% for 230 V Systems
①