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Daikin FWR08AF [9/42] Ield wiring

FWV+FWZ+FWL+FWR+FWM+FWS

Fan coil units

4PW17548-5

Installation and operation manual

the lower part of the room. The installation heights refer to the

maximum running speed.

Carry out the hydraulic connections to the heat exchanger and in case

of cooling operation, to the water drainage system.

In case of cooling applications, make sure to insulate all eld installed

piping and ttings as to avoid condensate dripping on the oor. Non

insulated piping can cause water damage!

We suggest to provide for the water inlet from the bottom side of the

heat exchanger and the outlet on the upper side.

For a better water drainage lean the drain pipe downwards at least

3þcm/m avoiding loops or narrowing on its way.

It is possible to change the water connections side operating as

follows:

! remove the cover front panel of the basic unit (4 screws), in

case of models FWV and FWZ or the main drip tray in case of

models FWL, FWR, FWM and FWS;

! remove the heat exchanger cover (2 screws);

! remove the heat exchanger (4 screws) xed on the side

panels of the basic unit;

! remove the lower partition plate;

! disconnect the motor cables from the terminal strip;

! remove the terminal strip and reassemble it on the opposite

side;

! take out the motor cable and place it on the opposite side;

remove the rubber snap bushing;

! remove the drain pipe and place it on the opposite side; set the

drain pipe in place of the closing cap of the drip tray and x that

closing cap back in the position where the drain pipe originally

was;

! turn the heat exchanger 180° and insert it on the side panel

removing the pre-cut slots; x it to the unit using the screws

supplied;

! reassemble the lower partition plate on the bottom side;

! reassemble the heat exchanger cover;

! reassemble the control panel opposite to the water

connections in case of model FWV and FWZ;

! insert the rubber snap bushing into the hole previously used

for the drain pipe, reassemble the cable fastener on the side

panel, and reassemble the cables connecting them to the

terminal strip;

! reassemble the cover front panel (4 screws) in case of models

FWV and FWZ or the main drip tray for the models FWL, FWR,

FWM and FWS;

! close the holes previously used with drip proof material.

Carry out the purge from the heat exchanger operating on the air vent

valves (10 hexagon wrench) located beside the water connections of

the heat exchanger.

In case of concealed models FWM and FWS, perform the connection

between the unit and the ducts, and place damping material between

the duct and the unit.

The ducts, in particular the outlet ones, must be insulated.

In order to avoid air back suction on the unit, keep a minimum distance

between the air outlet and recovered air ow as shown in gure 4.

The minimum installation height may not be lower than 1.8 m from the

oor level.

In case of FWM and FWS, provide for an inspection port to the unit.

The FWM and FWS built-in models must not be accessible

to the public.

In case of FWL and FWR, install the bottom plate according to gure 6.

For fan coils equipped with auxiliary electric heating

element, ensure that any combustible material is at least 30

cm away from the electric heating element.

The openable side doors must be xed with screw, due to

lack of controls onboard the fan coil.

field wiring

All eld wiring and components must be installed by a

licensed electrician and must comply with relevant local and

national regulations.

Carry out the electrical wiring after having turned the power off. Refer

to gure 5. For options, refer to the appropriate manual.

Check that the power supply corresponds to the nominal power supply

stated on the unit nameplate.

An omnipolar mains isolator in overvoltage category III must be

present for every fan coil in the power supply line.

Power consumption is shown on the data plate xed to the unit.

Make sure to carefully execute the wiring in function of the combination

unit/controller and this according to the correct wiring diagram

delivered with every accessory.

Wiring parts table

BK .......................... Black = maximum speed

BU.......................... Blue = medium speed

GNYE .................... Yellow/Green = earth connection

RD ......................... Red = minimum speed

WH ......................... White = common

- - - - ....................... Field wiring

F ............................ Fuse (eld supply)

IL............................ Main switch (eld supply)

M ............................ Motor

CN ......................... Connector

COM-102 ............... Connections to controller

test rUn

Check that the unit is perfectly levelled and that the drain pipe is not

obstructed (rubble deposits, etc.).

Check that the water connections (to the heat exchanger and water

drainage) are sealed.

Check that the electrical wiring is perfectly tight (perform this check

with voltage OFF).

Be sure that the air purge of the heat exchanger has been carried out

correctly.

Replace the cabinet (where existing).

Turn on the power supply and check the unit running.

Use

To use the unit, refer to the instructions in the installation and operation

manual of the controller. Dedicated controllers are available as

accessory.

Air outlet grills can be swivelled 180° to direct the ow into the room or

towards the wall on which the unit is mounted.

The grills and the side doors are snapped onto the cabinet. Before

removing them in order to change their position, cut the power off and

wear protective gloves.

Daikin FWR08AF [9/42] Ield wiring

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