31
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 SmartVu
TM
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
-
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 ManagementModule (EMM)
board (option).
Connections to the customer communication bus.
The CCN bus is connected using the connectors specially provided inside the electrical box. Two connectors are provided to allow
both permanent and service connections.
Selection of minimum and maximum wire sections for connection to 30XB(E/P)ZE units
30XB(E/P)ZE
Max.
connectable
wire section
(1)
Calculation of favourable case:
-Suspended overhead/aerial line (standardised
routing no. 17)
-90°C insulated cable
- Copper conductor (Cu)
- Ambient temperature 45°C
Calculation of unfavourable case:
- Conductors in ducts or multi-conductor cables in
closed conduit (standardised routing No. 41)
-70°C insulated cable if possible
- Copper conductor (Cu)
- Ambient temperature 45°C
Calculation of favourable case:
- Perforated horizontal conduit (standardised routing
No. 13/15)
- 90°C insulated cable
- Copper conductor (Cu)
- Ambient temperature 45°C
Calculation of unfavourable case:
- Closed conduit (standardised routing No. 41)
- 70°C insulated cable if possible
- Copper conductor (Cu)
- Ambient temperature 45°C
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
200
2 × 185
1 x 70
230
XLPE Cu
1 x 120
380
PVC Cu
230
2 × 185
1 x 70
210
XLPE Cu
1 X 150
430
PVC Cu
250
2 × 185
1 x 70
200
XLPE Cu
1 X 150
400
PVC Cu
300
2 × 185
1 x 95
210
XLPE Cu
1 x 240
470
PVC Cu
350
2 × 185
1 x 120
230
XLPE Cu
2 x 120
410
PVC Cu
400
2 × 185
1 x 150
250
XLPE Cu
2 x 150
450
PVC Cu
450
2 × 240
1 x 185
240
XLPE Cu
2 × 240
500
PVC Cu
500
2 × 240
1 x 240
270
XLPE Cu
2 × 240
460
PVC Cu
550
2 × 240
1 x 240
250
XLPE Cu
2 x 150
300
XLPE Cu
600
2 × 240
2 x 120
240
XLPE Cu
2 x 185
340
XLPE Cu
630
2 × 240
2 x 120
230
XLPE Cu
2 x 185
320
XLPE Cu
700
2 × 240
2 × 150
250
XLPE Cu
2 × 240
350
XLPE Cu
750
2 × 240
2 × 150
240
XLPE Cu
2 × 240
330
XLPE Cu
900
2x240/3x240
1 x 120/1 x 240
230/260
XLPE Cu
1 x 240/2 x 240
420/440
PVC Cu/PVC Cu
950
2x240/3x240
1 x 120/1 x 240
220/250
XLPE Cu
2 x 150/2 x 185
480/350
PVC Cu/XLPE Cu
1050
2x240/3x240
1 x 240/1 x 240
290/260
XLPE Cu
2 x 240/2 x 240
480/450
PVC Cu/PVC Cu
1150
2x240/3x240
1 x 240/1 x 240
260/250
XLPE Cu
2 x 240/2 x 185
450/350
PVC Cu/XLPE Cu
1200
2x240/3x240
1 x 240/1 x 240
250/250
XLPE Cu
2 x 185/2 x 185
350/350
PVC Cu/XLPE Cu
Option 81
900 to 1200
5x240
(1) Connection capacities actually available for each machine. These are defined according to the connection terminal size, the electrical/control box access opening
dimensions and the available space inside the electrical/control box.
(2) Selection simulation result considering the hypotheses indicated.
(3) If the maximum calculated section is for a 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.
The protection against direct contact at the electrical connection point is compatible with the addition of terminals extension. The installer must determine whether these
are necessary based on the cable sizing calculation
Note:
The currents considered are given for a machine equipped with an hydraulic module operating at maximum current.
5 - ELECTRICAL CONNECTION
