Electrical Connections; Maintenance; Checks Before Startup - Galletti FLAT S Installation, Bedienung Und Wartung

FLAT S
Make the plumbing connections to the heat exchanger and, where the cooling
function is to be used, to the condensate drainage outlet.
It is recommended to connect the installation intake to the bottom part of the
heat exchanger and the return to the upper part of it.
Bleed air from the exchanger by means of the air vent valves (hexagonal
wrench type 10) situated beside the plumbing connections of the exchanger.
To favour the drainage of condensate, the drain hose should be inclined
downward, at least 3 cm/m; make sure that no loops or bends form along
EN
its path.

ELECTRICAL CONNECTIONS

Make the electrical connections with the power supply disconnected,
in accordance with current safety regulations, and following the wiring
diagrams in figure 6 and pertinent legend.
Check that the mains electricity supply is compatible with the voltage shown
on the unit rating plate.
The electrical connections indicated must be made by the installer.
For each fan coil a switch (IL) should be mounted on the power supply, with
opening contacts at a distance of at least 3 mm and a suitable protection
fuse (F).
In the wiring diagrams the following abbreviations are used:
1 Control panel connection (accessory)
BK Black = High speed
BN Brown
BU Blue = Medium speed
C Speed switch
CN Fast-on connector
F Safety fuse (not supplied)
IL Circuit breaker (not supplied)
M Motor
MS Air outlet FLAP w/microswitch
RD Red, minimum speed
SF Function selector
T Thermostat
TC Fan stop thermostat (accessory)
WH White = common
S Selector ON-OFF
VK C ON-OFF 3-way motor driven valve (accessory),cooling exchanger
VK H ON-OFF 3-way motor driven valve (accessory),heat exchanger
On completing installation, before applying the cabinet on the base unit,
connect the cable of the microswitch to the terminal block.
At the end of the installation procedure, fit the air filter on the inlet and fix
it in place using the central screw provided (using a Phillips screwdriver,
max length 8 cm).
6

CHECKS BEFORE STARTUP

- Check that the unit is properly levelled and that the drainage outlet is not
clogged (by masonry debris, etc.)
- Check that the unit is installed in such a way as to guarantee the proper
air flow.
- Check the tightness of the plumbing connections (to the exchanger and
condensate drainage line).
- Make sure the electric wires are tightly connected (carry out this check
with the power supply OFF).
- Make sure that air has been eliminated from the heat exchanger.
- Reapply the cabinet.
FC66004073- 00 FC66004073- 00
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7
To use the fan coil refer to the instructions on the control panel available as
accessory.
The air flow may be directed as desired using the upper FLAP (flow may be
directed upward or downward) as well as the second row of louvers (for
directing air flow either to the left or right) as shown in Figure 7.
The upper FLAP can also be used to start and stop the unit: when closed, it
corresponds to switching off the fan and the adjustment valve - if necessary
- (see wiring diagrams of the optional electric control panels), Figure 8. To
prevent dust from getting inside the unit, always set the FLAP in the closed
position when the unit is not being used.
For safety reason, do not introduce your fingers or other pointed objects
in the air outlet grilles.
8
For safety reasons, before carrying out any maintenance or cleaning jobs,
turn off the unit by moving the fan speed selector to "Off" and putting off
the main switch (0 position).
Due caution must be taken while carrying out maintenance: some metal
parts may cause injuries; wear protective gloves.
FLAT S type fan coils do not have particular maintenance requirements: it is
sufficient to periodically clean the air filter.
A running in period of 100 hours is necessary to eliminate all initial mechani-
cal friction of the motor.
Start-up should be carried out at the maximum operating speed.
To assure that the FLAT S fan coil units perform efficiently, abide by the
following indications:
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Whenever starting up the unit after it has not been used for a long time, check
that there is no air in the heat exchanger.
Before the period of operation in the cooling mode, check that condensate
is properly drained and that the heat exchanger fins are not obstructed by
impurities.
Clean as necessary using compressed air or low pressure steam, taking
care not to damage the fins.
Adequate periodic maintenance will ensure save both energy and cost
savings.
12
All copying, even partial, of this manual is strictly forbidden
Power the fan coil and check its performance.
USE

MAINTENANCE

keep the air filter clean;
do not pour liquids inside the equipment;
do not introduce metal parts through the air outlet grill;
avoid obstructing the air outlet or intake.