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OPERATION
User Manual
ELECTRONIC THERMOSTATS
Read all instructions carefully
DIMENSIONS
WIRING DIAGRAMS
REGULATION TYPE SETTING
INSTALLATION
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Setpoint modificationOperating mode setting
Depleted batteries signal
(for Olympo only)
Error probe signal
Night reduction (for Olympo only)
When the battery is almost depleted, the yellow LED turns on for half a second
every 10 seconds. In this condition it is necessary to replace the batteries as
soon as possible.
Dispose of the batteries in the appropriate
recycling containers.
COM
NA
NC
N
L
230V~
COM
NA
NC
EXTERNAL
CONTACT
Olympo 230
Olympo
With external contact closed:
Setpoint = Setpoint programmed - 3°C
125 33
85
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25
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15
10
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lympo
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Regulation type setting
Vemer S.p.A.
I - 32032 Feltre (BL) • Via Camp Lonc, 16
Tel +39 0439 80638 • Fax +39 0439 80619
e-mail: info@vemer.it - web site: www.vemer.it
V3IS00834-010
Mod. Olympo
Wall-mounting electronic thermostats for temperature control both in heating
and cooling. They perform actions of 1B type and are intended for operating in
environments with Pollution Degree 2 and Overvoltage Category III (EN60730-1).
• Olympo, with battery power supply and an input for the connection of an
external contact with whom to reduce the setpoint of 3°C.
• Olympo 230 with mains power supply.
Code Model Description
VE757300 Olympo Bianco Wall-mounting battery thermostat
VE757400 Olympo Nero Wall-mounting battery thermostat
VE757500 Olympo 230 Bianco Wall-mounting 230 V thermostat
VE757600 Olympo 230 Nero Wall-mounting 230 V thermostat
SAFETY WARNINGS
During product installation and operation it is necessary to observe the
following instructions:
1) The instrument must be installed by a qualified person, in strict compliance
with the connection diagrams.
2) Do not power or connect the instrument if any part of it is damaged.
3) After installation, inaccessibility to the connection terminals without appropriate
tools must be guaranteed.
4) The instrument must be installed and activated in compliance with current
electric systems standards.
5) Before accessing the connection terminals, verify that the leads are not live.
6) In the electrical system of the building where the instrument must be installed, a
protection device from the overcurrents must be present (for Olympo 230 model
only).
TECHNICAL SPECIFICATIONS
• Power supply Olympo: – 2 alkaline batteries 1.5V (AAA type)
– battery life: 12 months
– depleted batteries indication
• Power supply Olympo 230: – 230Vac (-15% ÷ +10%) 50/60Hz
– max absorption: 6 VA / 230Vac
• Wall installation or to cover 3 modules box
• Terminals Olympo:
– 3 terminals for 1.5 mm
2
cables for bistable output relay 5A / 250 Vac
– 2 terminals for 1.5 mm
2
cables for digital input (3°C setpoint reduction)
• Terminals Olympo 230:
– 3 terminals for 1.5 mm
2
cables for monostable output relay 5A / 250 Vac
– 2 terminals for 1.5 mm
2
cables for power supply
• Operating mode: summer/winter/off (with antifreeze)
• Regulation type:
– on/off with fixed differential (0.3°C)
– P8 proportional with 0.8°C band (-0.3 ÷ +0.5°C) and period 8 minutes
– P15 proportional with 1.5°C band (-0.7 ÷ +0.8°C) and period 15 minutes
• Measurement precision: ±0.5 °C
• Setpoint range: 5°C ÷ 35°C
• Operating temperature: 0°C ÷ +50°C
• Storage temperature: -10°C ÷ +65°C
• Operating humidity: 20÷90% non condensing
• Protection degree: IP40
• Insulation: reinforced among accessible parts (frontal) and all other terminals
• Mechanical locks on the knob to limit the setpoint
The thermostat signals the error probe condition by blinking the LED 2 times
per second.
In this case the regulation is inhibited and the relay remains in position COM-NC.
Contact Vemer Technical Assistance.
REFERENCE STANDARDS
Compliance with Community Directives
2006/95/EC (Low voltage)
2004/108/EC (E.M.C.)
is declared with reference to the following harmonized standards:
• EN 60730-2-9
Olympo has an input to whom to connect an external contact (see wiring
diagrams).
With closed contact, the setpoint is reduced by 3°C than is set with the knob (in
heating mode only).
The choice of the operating logic occurs via selector switch
placed on the front of the instrument. It’s possible to choose
among 3 modes:
• cooling mode. Place the selector switch in position
if the
instrument is connected to a cooling system.
The output relay is activated when the environment
temperature is higher than the set one.
• off mode. Place the selector switch in position
in case the system should
be turned off for long periods.
Note: in this condition, the thermostat activates the heating system if the
temperature falls below 2°C (antifreeze temperature).
• heating mode. Place the selector switch in position
if the instrument
is connected to a heating system. The output relay is activated when the
environment temperature is lower than the set one.
The jumper placed on the back of the instrument (see
box “ Regulation type setting”) allows you to choose the
regulation type between on/off or proportional.
The position of the jumper determines the type of
regulation as follows:
− jumper in position ON/OFF: regulation with fixed differential at 0.3°C
(default setting)
− jumper in position PROP_08: proportional regulation with band 0.8 °C
(-0.3 +0.5) and period 8 minutes
− jumper in position PROP_15: proportional regulation with band 1.5 °C
(-0.7 +0.8) and period 15 minutes
Example of proportional operation with band 0.8°C and period 8 minutes
Tmis = Tset + 0.5 °C = relay OFF
Tmis = Tset + 0.4 °C = 1 minute ON ; 7 minutes OFF
Tmis = Tset + 0.3 °C = 2 minutes ON ; 6 minutes OFF
Tmis = Tset + 0.2 °C = 3 minutes ON ; 5 minutes OFF
Tmis = Tset + 0.1 °C = 4 minutes ON ; 4 minutes OFF
Tmis = Tset = 5 minutes ON ; 3 minutes OFF
Tmis = Tset - 0.1 °C = 6 minutes ON ; 2 minutes OFF
Tmis = Tset - 0.2 °C = 7 minutes ON ; 1 minute OFF
Tmis = Tset - 0.3 °C = relay ON
Example of proportional operation with band 1.5 °C and period 15 minutes
Tmis = Tset + 0.8 °C = relay OFF
Tmis = Tset + 0.7 °C = 1 minute ON ; 14 minutes OFF
Tmis = Tset + 0.6 °C = 2 minutes ON ; 13 minutes OFF
Tmis = Tset + 0.5 °C = 3 minutes ON ; 12 minutes OFF
Tmis = Tset + 0.4 °C = 4 minutes ON ; 11 minutes OFF
Tmis = Tset + 0.3 °C = 5 minutes ON ; 10 minutes OFF
Tmis = Tset + 0.2 °C = 6 minutes ON ; 9 minutes OFF
Tmis = Tset + 0.1 °C = 7 minutes ON ; 8 minutes OFF
Tmis = Tset = 8 minutes ON ; 7 minutes OFF
Tmis = Tset - 0.1 °C = 9 minutes ON ; 6 minutes OFF
Tmis = Tset - 0.2 °C = 10 minutes ON ; 5 minutes OFF
Tmis = Tset - 0.3 °C = 11 minutes ON ; 4 minutes OFF
Tmis = Tset - 0.4 °C = 12 minutes ON ; 3 minutes OFF
Tmis = Tset - 0.5 °C = 13 minutes ON ; 2 minutes OFF
Tmis = Tset - 0.6 °C = 14 minutes ON ; 1 minute OFF
Tmis = Tset - 0.7 °C = relay ON
Note: the proportional regulation is available only for the heating operation.
Note: the position of the jumper is read only when the instrument is on.
Change the position of the jumper when the instrument is supplied, as well
as expose you to possible shock, so it is useless.
To change the setpoint, turn the knob. The range of settable values is from
5°C to 35°C.
On Olympo 230 the activation of the relay is signaled by the red LED.
On Olympo the activation of the relay is not reported to limit battery
consumption.
The instrument has two ring nuts to limit mechanically the range if the
thermostat is installed in
public places or in hotel
rooms.
To limit the range, proceed
as follows:
- Set the knob in an
intermediate value of
the desired range (for
example if you want to
limit the range between
15°C and 25°C turn the
knob until the indicator
is in position 20°C).
- Remove the knob.
- Under the knob there are two ring nuts marked by the word “min” and
“MAX”, respectively for the lower and upper limit.
- Turn the “min” ring nut clockwise and “MAX” anticlockwise until the
desired position (in this case 15 for min and 25 for MAX).
- Replace the knob, making sure that the indicator of the setpoint on the
knob is in the same position when the knob has been removed (in this case
20°C).
To remove the limitation to the setpoint and reset the range 5÷35°C turn the
two ring nuts up to bring the locks of limitation in a position outside the range
5÷35°C.
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• Thermostats of Olympo series are designed for wall installation. Alternatively, they can be installed to cover the 503 box.
• Install the thermostat at a height of about 1.5 m above the floor, away from direct sunlight, away from doors, windows, heat sources, locations with excess or total lack of
ventilation.
Connect the cables to the terminal block
on the back of the base, as shown in box
“wiring diagrams”.
Fix the base to the wall using the
supplied screws.
Only for battery models: insert the batteries in
the corresponding compartment on the back
of thermostat, according to the polarity shown.
Hook the thermostat to the base, first
by coupling the teeth on the upper
side.
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