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OVERVIEW
This device is a thermostat intended for temperature regulation
in environments heated or cooled with fan-coil units. Power
supply is 230V~.
The device features an outlet to connect an external
temperature probe and another to connect a bimetal thermostat
for the "cutoff thermostat" function.
By means of the mechanical pins the angle of rotation of the
knob can be reduced.
INSTALLATION
Carry out the operations below to install the device, while
following the images on page 2:
Release the plate attached to the thermostat base by
1
pushing it to the left. This releases the teeth shown in Fig. 2.
Move both sliders all the way down and position the knob at
2
20°C; lift the knob using a screwdriver as shown by the
arrow in Fig. 3, being careful not to scratch the cover.
Push the plastic tab in the lower slot using a screwdriver,
3
slightly lifting the cover (Fig. 4).
Turn the cover, while pressing it slightly, until it is fully
4
extracted (Fig. 5).
Remove the mechanical pins from the thermostat base and
5
insert them in the cover to reduce the knob's field of rotation
(see example in Fig. 6 and read the "knob lock" paragraph).
The third pin at the top is a spare.
Fix the plate to the wall, using the two screw seats with centre
6
distances of 60 mm or 85 mm (use the supplied wall plugs
and/or screws). Pass the wires through the rectangular
openings.
- Connect the thermostat base to the wall plate (pass the
7
wires through the rectangular openings). Align the base
holes with the special wall plate teeth, then press the base
to the left until the plate's plastic teeth click (Fig. 8).
- Fix the thermostat base to the wall with the supplied
screws.
- Make the electrical connections following the most
8
appropriate connection diagram (Pages 4, 5, 6 and 7).
- Correctly set the connector JP1 if using a remote sensor.
See the "INTERNAL/EXTERNAL SENSOR SELECTION"
paragraph.
Perform the following operations to reclose the thermostat:
9
- Position the two teeth from the top of the cover into the
specific slots and leave both sliders at the bottom.
- Turn the cover making sure the sliders coincide with the
relative switches, push the plastic tab on the lower part of
the base inwardly (see the arrow in Fig. 7) and press it so
that the plastic fixing tab inside the special hole, at the
bottom of the cover, clicks. Check the sliders' correct
stroke.
Position the knob at 20°C and insert it on the cover.
10
OPERATION
The controls available on the front cover of the thermostat for
the user are two sliders and one knob.
3-SPEEDS SELECTOR
Through this three-position slide selector
the (fixed) speed of the fan-coil motor.
COOL / OFF / HEAT SELECTOR
Through this three-position slide selector
the operating mode of the thermostat as in the following
explained:
- Cooling Mode:
Set the slider to the position with the symbol n: cooling mode
is then selected.
- Heating Mode:
Set the slider to the position with the symbol f: heating mode
is then selected.
- Off Mode:
Set the slider to the position with the symbol 0: the thermostat
is turned off.
KNOB
Through the temperature set-point knob
temperature desired in the room, according to which the
regulation will be performed, in the range +5°C .. +35°C.
KNOB ROTATION LIMITATION
It is possible to limit the rotation range for the set-poin knob by
following these steps:
1. Extract the knob as indicated in "
2. Position the mechanical pins as shown in the example in Fig. 6
SUPPLY WATER THERMOSTAT
The 'Supply Water Thermostat' function is used to inhibit the fan
operation whenever the supply water is not hot enough (heating
mode only).
In order to activate this function it is mandatory to wire a
bimetallic thermostat between terminals 6 and 7.
In case the Supply Water Thermostat is not used, a wire jumper
must be applied between terminals 6 and 7.
INTERNAL / EXTERNAL SENSOR SELECTION
The thermostat leaves the factory already set for an internal
sensor work.
In those installations where a remote sensor is required, please
move jumper JP1 (located on the electronic board on the right
side of the selctors) into position A, as shown in Fig. 6, then
wire a 10KΩ @ 25°C NTC sensor with a proper 'Beta' value at
connector SA or, as an alternative, at terminals 12 and 13.
In case of doubts about the sensor to be connected, please ask
the producer.
TECHNICAL FEATURES
Power supply:
Power absorption:
Contact rating:
Sensor type:
Regulation range:
Accuracy:
Resolution:
Hysteresis:
Operating temperature:
Storage temperature:
Humidity limits:
Protection grade:
Case:
Size:
Weight:
a
- To
- For remote versions all wirings must be made using wires
A
the user can choose
- The appliance must be wired to the electric mains through
B
the user can choose
- Installation and electrical wirings of this appliance must
- Before wiring the appliance be sure to turn the mains
WARRANTY
In the view of a constant development of their products, the
manufacturer reserves the right for changing technical data and
features without prior notice.
The consumer is guaranteed against any lack of conformity
according to the European Directive 1999/44/EC as well as to
the manufacturer's document about the warranty policy.
C
the user can set the
The full text of warranty is available on request from the seller.
9
paragraph.
(
). The field of rotation is, in this way, reduced as in the arc
E
F
shown in
in Fig. 5.
230V~ -15% +10% 50/60Hz
3VA
5 (1) A @ 250V~ SPDT
NTC 10KΩ @ 25°C ±1% int.
(remote optional)
5°C .. 35°C
± 1°C
1°C
0.5°C
0°C .. 40°C
-10°C .. +50°C
20% .. 80% RH (non condensing)
IP 30
Material:
ABS self-extinguishing V0
Color:
Signal white (RAL 9003)
132 x 87 x 37 mm (W x H x D)
~265 g
WARNING
adjust
properly
room
thermostat
far
from
heat
particularly cold walls (thermal bridges). When the remote
sensor is used in conjunction with the thermostat, then
this note must be applied to the remote sensor itself.
with 1,5 mm² minimum cross section and not longer than
25 m.
Do not use same duct for signal wires and mains.
a switch capable of disconnecting all poles in compliance
with the current safety standards and with a contact
separation of at least 3 mm in all poles.
be made by qualified technicians and in compliance with
the current standards.
power off.
2
" in the "INSTALLATION"
temperature,
install
the
sources,
airstreams
or
- ENGLISH -
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