Carrier AQUASNAP 30RBP Series - Electrical Connection; 6.1 - Power Supply and Wiring; 6.3 - Cable Sizing and Selection

24

Please refer to the certied dimensional drawings, supplied
with the unit.

The power supply must meet the specication on the unit's
nameplate.
The supply voltage must be within the range specied in the
electrical data table.
For connections, refer to the wiring diagrams and certied
dimensional drawings.
WARNING:
Operation of the unit with an incorrect supply voltage or
excessive phase imbalance constitutes misuse which will
invalidate the manufacturer's warranty. If the phase imbalance
exceeds 2% for voltage, or 10% for current, contact your local
electricity supplier at once and ensure that the unit is not
switched on until corrective measures have been taken.
After the unit has been started up, the power supply must only
be disconnected for quick maintenance operations (one day
maximum). For longer maintenance operations or when the unit
is placed in storage (for example, during winter when the unit
does not need to generate cooling) the power supply of the unit
must be maintained permanently

100 x max. deviation from average voltage
Average voltage
Example:
On a 400 V - 3 ph - 50 Hz supply, the individual phase voltages
were measured with the following values:
AB = 406 V; BC = 399 V; AC = 394 V
Average voltage = (406 + 399 + 394)/3
= 1199/3
= 399.7 (rounded up to 400 V)
Calculate the maximum deviation from the 400 V average:
(AB) = 406 - 400 = 6
(BC) = 400 - 399 = 1
(CA) = 400 - 394 = 6
The maximum deviation from the average is 6 V. The greatest
percentage deviation is: 100 x 6/400 = 1.5 %
This is less than the permissible 2% and therefore acceptable.

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 guideline,
and does not engage the manufacturer's liability.
After wire sizing has been completed, using the certied
dimensional drawing, the installer must verify the appropriate
means of connection and dene any modications necessary
on site.
The connections provided as standard for the customer-
supplied power supply cables are designed for the number and
type of wires listed in the table below.
The calculations of favourable and unfavourable cases are
performed by using the maximum current possible for each
unit tted with a hydraulic module (see the tables of electrical
data for the unit and the hydraulic module).
The study includes the standardised installation cases according
to IEC 60364: cables with PVC (70°C) or XLPE (90°C)
insulation with copper core; routing in accordance with table
52C of the standard.
The maximum length mentioned is calculated to limit the
voltage drop to 5 %.
IMPORTANT:
Before connecting the main power cables (L1 - L2 - L3),
always check 3 phases are in the correct order (clockwise)
before proceeding to the connection on the main disconnect
switch.
Motor

Max. connectable section
(1)

- Suspended overhead line (standardised routing
no.17)
- Cable with XLPE insulation

- Conductors in ducts or multi-conductor cables in
closedconduits(standardisedroutingno.41)
-CablewithPVCinsulation,ifpossible
 Standard

 

Section
(2)



(3)
Section
(2)



(3)

(per phase)

(per phase)
 
(per phase)
 - 
(per phase)
 -
 2x70 2x95 21 1 x 50 180 XLPE Copper 2 x 50 350 PVC Copper
180 2x70 2x95 21 1 x 50 170 XLPE Copper 2 x 50 320 PVC Copper
200 2x70 2x95 21 1x70 205 XLPE Copper 2x70 380 PVC Copper
220 2x70 2x95 21 1x70 190 XLPE Copper 2x70 350 PVC Copper
 2x70 2x95 21 2 x 50 220 XLPE Copper 2x70 300 XLPE Copper
300 2x70 2x95 21 2 x 50 200 XLPE Copper 2x70 270 XLPE Copper
330 2x95 2x185 24,5 2x70 240 XLPE Copper 2x95 310 XLPE Copper
 2x95 2x185 24,5 2x70 220 XLPE Copper 2x95 280 XLPE Copper
400 2x95 2x185 24,5 2x70 200 XLPE Copper 2 x 120 310 XLPE Copper
430 2x95 2x185 24,5 2x95 240 XLPE Copper 2 x 150 340 XLPE Copper
470 2x240 2x240 37 2x95 220 XLPE Copper 2 x 150 320 XLPE Copper
520 2x240 2x240 37 2 x 120 240 XLPE Copper 2 x 185 330 XLPE Copper

(1) Connectioncapacitiesactuallyavailableforeachmachine.Thesearedenedaccordingtotheconnectionterminalsize,theelectricalboxaccessopeningdimensionsandtheavailablespaceinside
theelectricalbox.
(2) Selectionsimulationresultconsideringthehypothesesindicated.
(3) IfthemaximumcalculatedsectionisforanXLPEcabletype,thismeansthataselectionbasedonaPVCcabletypecanexceedtheconnectioncapacityactuallyavailable.Specialattentionmustbe
giventoselection.
 Theprotectionagainstdirectcontactattheelectricalconnectionpointiscompatiblewiththeadditionoffanoutcables.Theinstallermustdeterminewhetherthesearenecessarybasedonthecable
sizingcalculation.