Carrier 19PV550, Installation, Operation And Maintenance Instructions

Page: 16 / 34

16
5 - ELECTRICAL CONNECTION
Minimum and maximum connectable wire sections for 19PV units
19PV
Max. connectable
wire section
(1)
Calculation of favourable case:
- Perforated horizontal conduit
(standardised routing No. 13)
- 90°C insulated cable
- Copper conductor (Cu)
Calculation of unfavourable case:
- Closed conduit (standardised routing No. 41)
- 70°C insulated cable if possible
- Copper conductor (Cu)
Section
(2)
Max. length for a
voltage drop <5%
Cable type Section
(2)
Max. length for a
voltage drop <5%
Cable type
qty x mm²
(per phase)
qty x mm²
(per phase)
m -
qty x mm²
(per phase)
m -
Standard unit
550 2x300 1x95 191 90°C 1x185 360 70°C
720
2x300 1x150 217 90°C 2x150 383 70°C
800 2x300 1x185 227 90°C 2x185 388 70°C
900 2x300 / 2x300 1x50/1x120 177/208 90°C 1x95/2x150 348/382 70°C
1010 2x300 / 2x300 1x95/1x120 199/208 90°C 1x185/2x150 388/382 70°C
1180 2x300 / 2x300 1x70/2x95 186/196 90°C 1x185/2x240 388/366 70°C
1300 2x300 / 2x300 1x95/1x185 199/223 90°C 1x240/2x240 395/366 70°C
1450 2x300 / 2x300 1x185/1x185 223/223 90°C 2x185/2x185 374/374 70°C
1600 2x300 / 2x300 1x240/1x240 223/223 90°C 2x240/2x240 366/366 70°C
Unit + option 81
900
4x300 1x185 228 90°C 2x185 388 70°C
1010 4x300 1x240 236 90°C 2x240 396 70°C
1180 4x300 2x150 217 90°C 4x150 382 70°C
1300 4x300 2x150 217 90°C 4x150 382 70°C
1450
4x300 2x185 223 90°C 4x185 374 70°C
1600 4x300 2x240 224 90°C 4x240 366 70°C
(1) Connection capacities actually available for each machine. These are defined 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 90°C cable type, this means that a selection based on a 70°C cable type can exceed the connection capacity actually
available. Special attention must be given to selection.
Note: Option 84 and 84R are not included in these values.
5.5 - Power cable entry
The power cables can enter the 19PV control box from above the
unit. A removable aluminium plate on the upper part of the control
box face allows introduction of the cables. Refer to the certified
dimensional drawing for the unit.
5.6 - Field control wiring
IMPORTANT: Field connection of interface circuits may lead
to safety risks: any control box modification must maintain
equipment conformity with local regulations. Precautions
must be taken to prevent accidental electrical contact between
circuits supplied by different sources:
• The routing selection and/or conductor insulation
characteristics must ensure dual electric insulation.
• In case of accidental disconnection, conductor fixing
between different conductors and/or in the control box
prevents any contact between the conductor ends and
an active energised part.
Refer to the 19PV Touch'Pilot Control manual and the certified
wiring diagram supplied with the unit for the field control wiring of
the following features:
-
Remote on/off switch
-
Demand limit external switch
-
Remote dual set point
- Heating/Cooling switch mode
-
Alarm and operation report
-
Evaporator flow control by 0-10V signal
-
Heat condenser pump control
- Various interlocks on the Energy Management Module (EMM)
board
-
Condenser water inlet valve (option 152)
-
Set-point adjustement by 4-20 mA signal
5.7 - 24 and 230 V power reserve for the user
Control circuit reserve:
After all required options have been connected, the TC transformer
includes a power reserve that can be used for the field control wiring:
-
Unit without option 84/84R 2 A (24 V a.c.) or 48 VA
- Unit with option 84/84R 1.3 A (24 V a.c.) or 30 VA
At this TC transformer the 230 V, 50 Hz circuit allows the supply
of a battery charger for a laptop at 0.8 A maximum at 230 V. The
connection is via an EEC 7/16 type socket (2 poles without earth)
located under the control box and accessible from outside. Only
devices with class II double insulation can be connected at this
socket.