Daikin FWE04FF/T Installation And Operation Manual Download

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6 Electrical installation

Installation and operation manual

FWE-F
Fan coil units
3P756931-1 – 2023.11

5.6.2

Connecting the optional equipment

Technical specifications of the valves

Kvs value

Max. operation
pressure PN (bar)

Actuator power
supply

2.8

1 Ph, 230 V,
50-60 Hz

Electrical installation

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

WARNING

Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provides full
disconnection under overvoltage category III.

WARNING

If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.

6.1

Preparing electrical wiring

WARNING

All field wiring and components MUST be installed by a
licensed electrician and MUST comply with the applicable
legislation.

DANGER: RISK OF ELECTROCUTION

WARNING

A  main  switch  or  other  means  for  disconnection,  having  a
contact  separation  in  all  poles,  MUST  be  incorporated  in
the  fixed  wiring  in  accordance  with  the  applicable
legislation.

CAUTION

▪ When connecting the power supply: connect the earth

cable first, before making the current-carrying
connections.

▪ When disconnecting the power supply: disconnect the

current-carrying cables first, before separating the earth
connection.

▪ The length of the conductors between the power supply

stress relief and the terminal block itself MUST be as
such that the current-carrying wires are tautened before
the earth wire is in case the power supply is pulled
loose from the stress relief.

WARNING

▪ After finishing the electrical work, confirm that each

electrical component and terminal inside the switch box
is connected securely.

▪ Make sure all covers are closed before starting up the

unit.

WARNING

Do  NOT  apply  any  permanent  inductive  or  capacitance
loads  to  the  circuit  without  ensuring  that  this  will  NOT
exceed  the  permissible  voltage  and  current  permitted  for
the equipment in use.

NOTICE

The  equipment  described  in  this  manual  may  cause
electronic  noise  generated  from  radio-frequency  energy.
The  equipment  complies  to  specifications  that  are
designed  to  provide  reasonable  protection  against  such
interference.  However,  there  is  no  guarantee  that
interference will not occur in a particular installation.

It is therefore recommended to install the equipment and
electric wires in such a way that they keep a proper
distance from stereo equipment, personal computers, etc.

DANGER: RISK OF ELECTROCUTION

▪ Turn OFF all power supply before removing the fan coil

unit terminal cover when connecting electrical wiring or
touching electrical parts.

▪ Disconnect the power supply for more than 10 minutes,

and measure the voltage at the terminals of main circuit
capacitors or electrical components before servicing.
The voltage MUST be less than 50 V DC before you
can touch electrical components. For the location of the
terminals, see the wiring diagram.

▪ Do NOT touch electrical components with wet hands.

▪ Do NOT leave the unit unattended when the terminal

cover is removed.

WARNING

▪ ONLY use copper wires.

▪ Make sure the field wiring complies with the applicable

legislation.

▪ All field wiring MUST be performed in accordance with

the wiring diagram supplied with the product.

▪ NEVER squeeze bundled cables and make sure they

do NOT come into contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.

▪ Make sure to install earth wiring. Do NOT earth the unit