Before Installation - Daikin FWV Manuel D'installation

FWV+FWZ
FWL+FWR
FWM+FWS
Read this manual attentively before starting up the unit. Do
not throw it away. Keep it in your files for future reference.
Improper installation or attachment of equipment or
accessories could result in electric shock, short-circuit,
leaks, fire or other damage to the equipment. Be sure only
to use accessories made by Daikin which are specifically
designed for the use with the equipment and have them
installed by a professional.
If unsure of installation procedures or use, always contact
your Daikin dealer for advice and information.
The optional EEH (electric heater kit) cannot be mounted on
units which are set up for 2-pipe systems with 4-row coil and
4-pipe systems.
B
efore installation
Installation and maintenance should be carried out by technical
personnel qualified for this type of machine, in compliance with current
safety regulations.
When receiving the unit please check its state, verifying if any damage
occurred during the transport.
Refer to the relevant technical sheets for installation and use of
possible accessories.
Identify model and version of the unit from the indications stated on the
carton package.
U
se and operating limits
Daikin shall not be held liable
- if the unit has been installed by non-qualified personnel,
- if the unit has been used improperly,
- if the unit has been used under conditions that are not permitted,
- if maintenance operations specified in this manual have not been
carried out,
- if non original spare parts have been used.
Keep the unit in its packaging until it is ready to be installed, to prevent
dust getting inside.
Operating limits are shown here below; all other uses are considered
improper:
thermal fluid: water/glycol
!
water temperature: 5°C~95°C
!
maximum operating pressure: 10 bar
!
air temperature: 5°C~43°C
!
nominal power supply voltage: 230V - 50 Hz
!
ambient air humidity limit: RH<85% non-condensing
!
Selection of location:
Equipment designed for ambient air conditioning and intended for use
in civil comfort applications.
do not install the unit in rooms where inflammable gases are
!
present
do not let water spray directly on the unit;
!
install the unit on ceilings or walls that bear its weight. Leave
!
enough space all around for proper operation and maintenance of
the unit, taking into account all installed optional accessories.
never place the heating unit immediately under an electric
!
plug-socket.
Installation and operation manual
1
Fan coil units
d
imensions (See figure 1)
1
Clear space for hydraulic connections
2
Slots for wall/ceiling mounting 9 x 20 mm
3
Clear space for electric connections
4
Hydraulic connections (4 DF = 4 pipe system)
5
Condensate drainage for vertical installation
6
Air outlet for concealed models
7
Air suction for concealed models
8
Condensate draining for horizontal installation
9
Air outlet
10
Air inlet
Indications applicable to units with hydraulic connections on the left side; in case of right side
(*)
connections the indications for "clear space" are reversed.
i
nstallation
Before installing the fan coil, ensure that:
- The place of installation has sufficient space for containing the
device and for performing installation and maintenance (respect
spaces fig. point 2).
- The air inlet and delivery are not obstructed.
- The hydraulic connections are positioned and dimensioned as
requested by the device (fig.1).
- The electric power supply line has the features requested on the
fan coil's data plate.
In normal operation, particularly with the fan at minimum speed and
ambient air with high relative humidity, condensation may form on
the air outlet and on some external parts of the unit. To avoid such
issues while always remaining within the operating limits envisaged
for the unit, it is necessary to limitthe (average) temperature of the
water inside the heat exchanger. In particular, the difference
between the air dew point (TA,DP) and the average water
temperature (TWM) must NOT exceed 14 °C, according to the
following relationship:
TW>TA,DP-14 °C
Example: in the case of ambient air at 25 ° C with 75% relative
humidity, the dew point temperature is about 20 ° C and therefore
the average temperature of the water
in the battery must be greater then:
-20-14 = 6 °C in order to avoid condensation on a fancoil equipped
with a valve.
- 20-12 = 8 °C If the valve kit accessory can not be installed.
In the event the indoor unit is stopped for a prolonged period, with
the fan stopped and circulation of cold water in the heat exchanger,
condensation may also form on the unit's exterior. In this case it is
advisable to install the 3-way (or 2-way) valve
accessory in order to stop the flow of water in the coil when the fan
is stopped.
Remove the cabinet, where existing, by unscrewing the 4 fastening
screws reachable through the lifted side doors (see figure 2). In case of
FWL and FWR versions, also unscrew the 2 screws on the front panel.
Install the basic unit onto the wall/ceiling using the 4 mounting slots
and the supplied anchor screws, keeping the unit at least 100 mm
above the floor for a proper air suction and an easy pulling out of the
filter in case of FWV, FWZ, FWM and FWS models. In case of ceiling
models FWM, FWS, FWL and FWR verify that the installation height
corresponds to what is specified in figure 3, in order to avoid excessive
hot air stratification in the upper part of the room; in case of greater
installation heights we suggest to proceed with the back suction from
Installation and
operation manual
(*)
(*)
FWV+FWZ+FWL+FWR+FWM+FWS
Fan coil units
4PW17548-5