Recommended Wire Sections; Power Cable Entry; Field Control Wiring - Carrier Aqua Force 30XA Installation, Operation And Maintenance Instructions

5.4 - Recommended wire sections

Wire sizing is the responsibility of the installer, and depends
on the characteristics and regulations applicable to each
installation site. The following is only to be used as a guide-
line, and does not make in any way liable. After wire sizing
has been completed, using the certified dimensional drawing,
the installer must ensure easy connection and define any
modifications necessary on site.
The connections provided as standard for the field-supplied
power entry cables to the general disconnect/isolator switch
are designed for the number and type of wires, listed in the
table below.
The calculations are based on the maximum machine
current (see electrical data tables).
For the design the following standardised installation
methods are used, in accordance with IEC 60364, table 52C:
• For 30XA units installed outside the building:
No.17: suspended aerial lines
No. 61: buried conduit with a derating coefficient of 20.
The calculation is based on PVC or XLPE insulated cables
with copper core. The maximum temperature is 46°C for
30XA units.
The given wire length limits the voltage drop to < 5%.
IMPORTANT: Before connection of the main power
cables (L1 - L2 - L3) on the terminal block, it is imperative
to check the correct order of the 3 phases before proceeding
to the connection on then terminal block or the main
disconnect/isolator switch.

5.5 - Power cable entry

The power cables can enter the 30XA control box from
below or from the unit side.
selection table of minimum and maximum wire sections for connection to 30Xa units
Maximum wire
section
30Xa section (mm )
2
252 2 x 240
302 2 x 240
352 2 x 240
402 2 x 240
452 2 x 240
502 2 x 240
602 4 x 240
702 4 x 240
752 4 x 240
802 4 x 240
4 x 240
852
902 6 x 240
1002 6 x 240
Circuits a and B/C
1102 4 x 240/2 x 240
4 x 240/2 x 240
1202
1302 4 x 240/2 x 240
1352 6 x 240/2 x 240
1402 6 x 240/2 x 240
1502 6 x 240/2 x 240
4 x 240/4 x 240
1702
Option 81
1102-1502 8 x 240
* Power supply wire section (see diagram in chapter 5 'Electrical connection').
Note: The current values used are given for a unit equipped with a hydronic kit operating at maximum current.
22
Minimum calculated section
section (mm )* Max. length (m) Wire type
2
1 x 95 190
1 x 95 190
1 x 120 197
1 x 150 200
1 x 185 205
1 x 240 205
2 x 95 190
2 x 120 198
2 x 120 198
2 x 150 200
2 x 150 200
2 x 185 205
2 x 240 205
2 x 95/1 x 240 190/280
2 x 150/1 x 240 280/280
2 x 150/1 x 240 280/280
2 x 185/1 x 240 280/280
3 x 150/1 x 240 280/280
3 x 150/1 x 240 280/280
2 x 150/2 x 150 200/200
For 30XA unit sizes 602 to 1702 the control box that includes
the power supply cable connection terminal is located in
the lower part of the unit. In this case the control box is
raised by 120 mm compared to the lowest point of the chassis.
The cable entry point depends on the unit configuration:
1. Unit raised from the ground (e.g. installation on sup-
port rails): It is recommended to enter the power cables
from below the control box. A removable aluminium
plate below the control box allows introduction of the
cables.
2. Unit placed on the ground: For power cable entry from
below the control box ensure that the cable bend radius
is compatible with the connection space available in
the control box. If not, an aluminium plate on the
control box face allows introduction of the cables.
For units with three circuits with option 81 (single power
connection point) the connection must be made from below
the unit.
IMPORTANT: Check the cable bend radius for cable entry
into a control box, located in the lower part of the unit.
Refer to the certified dimensional drawing for the unit.

5.6 - field control wiring

Refer to the 30XA Pro-Dialog Controls IOM and the
certified wiring diagram supplied with the unit for the field
control wiring of the following features:
• Evaporator pump interlock (mandatory)
• Remote on/off switch
• Demand limit external switch
• Remote dual set point
• Alarm, alert and operation report
• Evaporator pump control
• Heat reclaim condenser pump control (option)
• Hot water valve control (option)
• Set point reset via outside air temperature sensor reset
• Various interlocks on the Energy Management Module
(EMM) board (accessory or option)
Maximum calculated section
section (mm )*
2
XLPE Cu 2 x 95
XLPE Cu 2 x 120
XLPE Cu 2 x 150
XLPE Cu 2 x 185
XLPE Cu 2 x 120
XLPE Cu 2 x 150
XLPE Cu 2 x 240
XLPE Cu 2 x 240
XLPE Cu 3 x 240
XLPE Cu 3 x 240
XLPE Cu 4 x 240
XLPE Cu 4 x 240
XLPE Cu 5 x 240
XLPE Cu 4 x 240/2 x 240
XLPE Cu 4 x 240/2 x 240
XLPE Cu 4 x 240/2 x 240
XLPE Cu 5 x 240/2 x 240
XLPE Cu 5 x 240/2 x 240
XLPE Cu 6 x 240/2 x 240
XLPE Cu 4 x 240/4 x 240
Max. length (m) Wire type
410 PVC Cu
435 PVC Cu
455 PVC Cu
470 PVC Cu
435 XLPE Cu
455 XLPE Cu
480 XLPE Cu
480 XLPE Cu
600 XLPE Cu
600 XLPE Cu
685 XLPE Cu
685 XLPE Cu
750 XLPE Cu
685/480 PVC Cu/XLPE Cu
685/480 XLPE Cu/XLPE Cu
685/480 XLPE Cu/XLPE Cu
750/480 XLPE Cu/XLPE Cu
750/480 XLPE Cu/XLPE Cu
750/480 XLPE Cu/XLPE Cu
685/685 XLPE Cu