Operating Limits - Daikin EDEH FWD Serie Manual Del Usuario

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Designed to meet the needs of users who wish to employ electric heating or

supplement conventional water heating systems (e.g. thermal ventilating units

supplied with hot water from a heat pump), the EDEH supplementary heating

element module can be used on all FWD thermal ventilating units.

The EDEH accessory is available in the following versions:

TABLE 1

Electrical input

Model

(kW)

FWD 04

2.0

3.0

FWD 06

6.0

4.5

FWD 08-10

9.0

4.5

FWD 12

9.0

FWD 16 - 18

The EDEH module shown in figure (1) is mainly composed of:

A) Armoured finned heating elements made of aluminium, complete with

supporting brackets for fastening them to the load-bearing structure of the

electric module, which is built from thick galvanised sheet steel, duly insulated

and provided with an electric control panel for housing the power relays and wire

terminals. In conformity with electric safety directives, the module is equipped

with 3 automatic-reset safety devices (one for each heating element) and one

manual-reset safety device.

B) An automatic-reset safety thermostat, integral with the heating element,

which switches it off should overheating occur as a result of irregular operating

conditions or a fault in the fan motor unit;

C) A manual-reset safety thermostat, mounted on the load-bearing structure,

which switches off the heating element in the event of a simultaneous failure

of all 3 automatic-reset safety thermostats.

Caution: the sensitive element of the manual-reset safety thermostat is a

capillary bulb that must be duly re-positioned, always in the top part, if the EDEH

module is installed in a configuration differing from the standard one. In the

standard configuration, the box housing the electric connections is situated on

the same side as the water connections. Therefore, viewing the machine from

the front after it has been installed, the electric module will be positioned on

the machine itself with the electric box on the left side. In this configuration,

the thermostat bulb will be in the correct position (factory configuration). If the

electric module is installed in the opposite position (electric box on the right),

it will be necessary to move the thermostat bulb into the position shown in

figure (2); care must be taken to fasten it securely with clamps, using the holes

provided for this purpose.

D) An electric box incorporating the power contactors, connection terminals

and manual-reset thermostat.

E) L-shaped brackets and screws for fastening the module to the machine outlet.

The EDEH heating element must be associated with the following control:

Control code

FWEC1A,FWEC2A,FWEC3A,FWECSA

EPIA6,EPIMSA6

INSTALLATION

Warning! Before starting the installation procedure, disconnect the thermal

ventilating unit from the power supply

THE EDEH ELECTRIC MODULE CAN BE INSTALLED ONLY ON THE MACHINE

AIR OUTLET

The overall dimensions are shown in figures 4a and 4b.

It is recommended to mount the EDEH module on the thermal ventilating unit

before installing the unit itself in place.

Place the thermal ventilating unit in an upright position. Fasten the

L-shaped brackets on the two short sides of the air outlet, using the

4 holes provided (2 per side) and self-tapping screws (supplied in the

kit).

After applying the 2 L-shaped brackets, which serve both as a guide

and support for the EDEH module, you can install the module itself;

make sure that the L-shaped brackets are both positioned inside the

rectangular outlet.

È severamente vietata la riproduzione anche parziale di questo manuale / All copying, even partial, of this manual is strictly forbidden

Power supply

Current rating (A)

(V-f-Hz)

8.7

230-1-50

4.3

400-3-50

8.7

400-3-50

6.5

400-3-50

6.5

400-3-50

17.3

Description of controls

Microprocessor control: automatic

control of ventilating convector, valves

and heating element

Power card to be added to control

panels. For FWD 16-18 only

Apply the self-tapping screws (supplied in the kit) as shown in figure

(3): the screws on the short sides act on the L-shaped brackets, while

on the two long sides holes are provided for fastening the module

directly to the outlet of the thermal ventilating unit.

NOTE:

The electric module has holes like those on the machine air intake, on the

extremity turned toward the air outflow ducts.

Each thermal-ventilating unit requires a switch (IL) on the feeder line with a

distance of at least 3 mm between the opening contacts, and a suitable safety

fuse (F).

I) Open the electric box by loosening the 4 self-tapping screws on the front

of the cover.

II) Connect the electric wires, using the wire clamps provided, both for the power

supply line and the wire connecting to the control on the wall.

Important: The controls provided are FWEC1A, FWEC2A, FWEC3A and FWCSA

which incorporates all the necessary functions for managing the thermal

ventilating unit, the heating elements (and the on-off valves on the water

side, where present).

NOTE: the control guarantees the complete safety of the EDEH module,

thanks to the POST-VENTILATION function, which keeps the fan running

for 2 minutes after the heating elements have been switched off because

the set temperature point has been reached. This feature serves to prevent

dangerous overheating which may be caused by the thermal inertia of the

heating elements themselves.

Galletti S.p.A. will not be liable for any faults or damage caused by improper

use of the EDEH module and/or an inadequate control panel.

If the module is applied on thermal ventilating units with plumbing

connections on the right (i.e. with the electric box on the right) it will be

necessary to change the position of the bulb of the manual-reset safety

thermostat.

As noted above in item (C), if the electric module is installed in a position opposite

to the factory configuration, it will be necessary to move the thermostat bulb

into the position shown in figure (2); care must be taken to fasten it securely

with clamps, using the holes provided for this purpose.

In case of vertical installation, the safety thermostat bulb must be secured

to the wires of the automatic-reset safety thermostat (see fig 1 B) using

the clamps provided in the kit.

Warning: the control panel must be mounted on the wall in an easily accessible

position allowing the user to set the functions while ensuring an accurate

reading of the ambient temperature. Therefore, avoid:

- positions directly exposed to sunlight;

- positions exposed to direct currents of warm or cold air;

- placing obstacles that impede an accurate temperature reading (drapes or

furniture);

- constant presence of steam

- covering the panel or building it into the wall.

The minimum gauges of the power cables will depend on the electrical

inputs specified in table 1, in compliance with current regulations.

To guarantee the efficiency of a thermal ventilating unit fitted with

a supplementary RE heating element module, comply with the

following directions:

- keep the air filter clean;

- do not pour liquids inside the equipment;

- make absolutely sure you do not obstruct the air outlet or inlet

of the thermal ventilating unit;