Carrier Aqua Force 30XA, Инструкции по установке, эксплуатации и обслуживанию

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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.
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)
selection table of minimum and maximum wire sections for connection to 30Xa units
Maximum wire Minimum calculated section Maximum calculated section
section
30Xa section (mm
2
) section (mm
2
)* Max. length (m) Wire type section (mm
2
)* Max. length (m) Wire type
252 2 x 240 1 x 95 190 XLPE Cu 2 x 95 410 PVC Cu
302 2 x 240 1 x 95 190 XLPE Cu 2 x 120 435 PVC Cu
352 2 x 240 1 x 120 197 XLPE Cu 2 x 150 455 PVC Cu
402 2 x 240 1 x 150 200 XLPE Cu 2 x 185 470 PVC Cu
452 2 x 240 1 x 185 205 XLPE Cu 2 x 120 435 XLPE Cu
502 2 x 240 1 x 240 205 XLPE Cu 2 x 150 455 XLPE Cu
602 4 x 240 2 x 95 190 XLPE Cu 2 x 240 480 XLPE Cu
702 4 x 240 2 x 120 198 XLPE Cu 2 x 240 480 XLPE Cu
752 4 x 240 2 x 120 198 XLPE Cu 3 x 240 600 XLPE Cu
802 4 x 240 2 x 150 200 XLPE Cu 3 x 240 600 XLPE Cu
852 4 x 240 2 x 150 200 XLPE Cu 4 x 240 685 XLPE Cu
902 6 x 240 2 x 185 205 XLPE Cu 4 x 240 685 XLPE Cu
1002 6 x 240 2 x 240 205 XLPE Cu 5 x 240 750 XLPE Cu
Circuits a and B/C
1102 4 x 240/2 x 240 2 x 95/1 x 240 190/280 XLPE Cu 4 x 240/2 x 240 685/480 PVC Cu/XLPE Cu
1202 4 x 240/2 x 240 2 x 150/1 x 240 280/280 XLPE Cu 4 x 240/2 x 240 685/480 XLPE Cu/XLPE Cu
1302 4 x 240/2 x 240 2 x 150/1 x 240 280/280 XLPE Cu 4 x 240/2 x 240 685/480 XLPE Cu/XLPE Cu
1352 6 x 240/2 x 240 2 x 185/1 x 240 280/280 XLPE Cu 5 x 240/2 x 240 750/480 XLPE Cu/XLPE Cu
1402 6 x 240/2 x 240 3 x 150/1 x 240 280/280 XLPE Cu 5 x 240/2 x 240 750/480 XLPE Cu/XLPE Cu
1502 6 x 240/2 x 240 3 x 150/1 x 240 280/280 XLPE Cu 6 x 240/2 x 240 750/480 XLPE Cu/XLPE Cu
1702 4 x 240/4 x 240 2 x 150/2 x 150 200/200 XLPE Cu 4 x 240/4 x 240 685/685 XLPE Cu
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.