19
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 30XAV Touch Pilot control manual and the
certified electric wiring diagram provided 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 signals
•
Evaporator pump control
•
Heat reclaim condenser pump control (option)
•
Set point reset via outside air temperature sensor
•
Various interlocks on the Energy Management Module
(EMM) board.
Connections to the client communication bus
•
The connection to the CCN bus is carried out using
connectors provided for this purpose inside the control
box. Two connectors are provided to allow both
permanent and service connections.
•
Permanent connections to an Ethernet bus or to a USB
port are made via the connectors on the touch screen
interface.
A shielding clamp for the cable from the system is provided
near the permanent bus connectors.
5.7 - Electric and power reserve for the user
After all possible options have been connected, the TC
transformer ensures a power supply reserve of 1 A under 24
Vac that can be used for the on-site control cabling.
As an option, a second TC transformer powers a 230V, 50Hz
circuit can be used for charging a laptop battery (maximum
current 0.8 A). A standard CEE7/17, type E connector is
provided. This circuit is protected by a 10mA earth leakage
detector.
Table of minimum and maximum wire sections (per phase) for connection to 30XAV units
30XAV
Max.
connectable
section*
Calculation favourable case:
Calculation unfavourable case:
- Suspended aerial lines (standardised routing No. 17)
- XLPE insulated cable
- Conductors in conduits or multi-conductor cables in closed
conduit (standardised routing No. 41)
- PVC insulated cable, if possible
Section
Section**
Max. length for voltage
drop <5%
Cable
type
Section**
Max. length for
voltage drop <5%
Cable type***
mm² (per phase) mm² (per phase)
m
mm² (per
phase)
m
500
2x240
1x185
260
XLPE
2x185
450
PVC
600
2x240
1x240
280
XLPE
2x240
480
PVC
700
2x240
1x240
250
XLPE
2x185
350
XLPE
800
2x240/2x240
1x150/1x150
260
XLPE
2x185/2x185
550
PVC
950
2x240 / 2x240
1 x 240 / 1 x 150
240
XLPE
2 x 185 / 2 x 120 380
XLPE
1050
2x240 / 2x240
1 x 240 / 1 x 240
240
XLPE
2 x 185 / 2 x 185
410
XLPE
1150
2x240 / 2x240
2 x 120 / 2 x 120
260
XLPE
2 x2 40 / 2x 240 450
XLPE
Option 81
800 - 1150
4 x 240
*
Connection capacities actually available for each machine, defined according to the connection terminal size, the control box access opening size and the available space inside the control box.
**
Selection simultation result considering the hypothesis indicated.
***
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 the selection.
Summary of Contents for AquaForce 30XAV 1050
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