Carrier 09PE, Инструкции по установке, эксплуатации и обслуживанию

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15 - MAINTENANCE SWITCHES OPTION
Function
■ The maintenance switch can be used to work on a fan motor assembly without interrupting the operation of the device. It cuts the
power supply to the closest motor, and the other motors remain powered on and operate normally.
■ The maintenance switch is not a safety device; the installer is still obliged to fit an emergency stop on the installation.
Precautions
■ The operator must padlock the locking device to prevent the unit being switched back on by another person.
■ Warning: pressing the switch only affects the associated motor. Bear in mind that, even if the unit appears to have stopped completely,
it may restart at any time, and all the other components are still powered on.
Specifications
■ Sealing: IP65
■ Minimum storage temperature: -25°C
■ Cable routing diameter: M20
Electrical connection
■ See connection sheet.
■ For units with the "ELECTRICAL CABINET" or "ELECTRICS BOX" option, the maintenance switches are connected in the factory.
16 - PROTECTION CABINET OPTION
Function
■ Protects the motors
Power supply
■ See connection sheet or wiring diagram supplied with the cabinet.
Limits of use
■ Ambient air:
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Storage temperature: -40/+60°C
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Operating temperature: -25/+55°C
Components
■ Packing boxes are provided for the installer on the base of the cabinet.
■ A padlockable front disconnect switch, with auxiliary contact, fitted with a device requiring the power supply to be switched off before
the door is opened. This works as an emergency stop.
■ One thermal-magnetic circuit breaker for each motor, padlockable with normally open auxiliary contact.
■ 1 x 3-stage terminal (1, 2, PE) for each fan line for 0/10 V signal (EC FMA option).
Electrical connection
■ The motors are connected to the front of the mounted cabinet on the inlet manifold side.
■ For electrical connection, refer to the connection sheet or wiring diagram supplied with the cabinet.
■ The cables to use for the power connection must be made from copper. If cables made from other materials, such as aluminium,
are used, bimetallic terminals and connectors or intermediate terminals must be used.
■ Make the electrical connections as follows:
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Connection of the power circuit to the main switch.
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Connection of the protective conductor to the earth terminal.
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Connection of 0/10 V signal (EC fan motor assembly option) on 3-stage terminals (1, 2, PE) 1 terminal available for each fan line
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For 2 line machines, a single common value of 0/10 V must be connected on the two terminal strips provided for this purpose.
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Information available
■ See connection sheet or wiring diagram supplied with the cabinet.
■ On dry contacts:
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Switch position feedback
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Fault summary (failsafe)
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