A
User’s Manual- Installation and Operation
Important Safety Information
•
Always turn off the main power when the plastic cover of the thermometer is removed.
•
Read carefully the information included in this manual before install for operation the thermometer.
•
The used power is the main power of 230Volts AC/50Hz and the installation should be done by authorized person.
•
Avoid places of high humidity for the installation.
•
Do not try to use the thermostat for other applications except those that is made to be used i.e. double or triple heating source
boilers.
•
This thermometer is not an instrument. It must not be used in life critical applications.
Features
•
Senses and displays the temperature from -5°C to +90°C.
•
Adjustable from -5°C to +90°C.
•
Adjustable high and low temperature limits.
•
Displays “Lo” and “Hi” indication when temperature reaches the lower or the upper limit.
•
Displays “Err” indication and deactivates the relay in case of remote sensor disconnect.
•
Temperature can be adjusted in steps of 0.1°C.
•
The accuracy is within ±2°C.
•
Memory is available in case power failure.
•
Contains light indicators for “SET”, “ON/OFF”, and “ORDER” conditions.
•
It is internally protected against lightings.
•
It is galvanically isolated.
•
Incorporates variable differential and sensed temperature trimming function (for installers only).
Installation
Install the thermometer always in an inside wall in a height of 1.2m to 1.5m from the floor in order to be easy readable.
1.
Turn OFF the power of the installation.
2.
Remove the plastic cover of the thermometer simply by pressing the two anchors in both lateral sides.
3.
Place thermometer against the wall at desired location. Make sure the wires will feed through opening on its base.
4.
Mark the position of mounting holes and drill them.
5.
Secure and align the thermometer in the wall by fixing the two screws. Do not over tighten the screws.
6.
Install the remote sensor in contact to the boiler that has to be sensed. For better result place the sensor between the metal container
and the isolation coating. It is allowed to extend the remote sensor cable by using a double wire, multi strand cable with cross
section at least 1mm
2
. Do not extend the sensor more than 25m. The remote sensor is not water resistant. Do not immerse the
sensor into the water or other liquids.
7.
Connect the appropriate wires to cable terminal strip as shown in the wiring diagram.
8.
Replace the plastic cover. Switch ON the power of the installation.
Operation
When the installation is accomplished the device operates as a digital thermometer. Press the “ON/OFF” button. A green indicator lights
on. Repressing the same as above “ON/OFF” button the thermostat goes OFF. Adjustment of the desired temperature when thermostat is
ON is made by pressing either the button signed with
or
symbols. A yellow colored indicator lights on and the display shows the
desired temperature. Once the desired temperature is set up correctly the thermostat affects system in order to maintain the boiler
temperature as close as possible into the setting. When the temperature is lower than the desired the red indicator lights on and the electrical
contact is closed. When the temperature exceeds the desired point the red indicator is switched off and the electrical contact opens.
The thermostat has a factory preprogrammed differential of -3°C which is well suited for domestic water heating applications. The
temperature differential can be adjusted from –0.1°C to –10.0°C. Differential adjustments must be done exclusively from authorized
personnel. Incorrect adjustment has serious danger and may affect the correct operation as well as the stability of the system. For the same
reason take care when performing trimming to improve sensed temperature accuracy. This adjustment is also allowed to experienced
installers only. Refer to Charmeg for detailed trimming procedures.
This product has been manufactured from materials which can be recycled and reused according to the European Directive
2002/96/EC.
Please be informed regarding the local collection system for electrical and electronic equipment and do not dispose the old
products with your normal household waste.
The correct disposal of the products will help to prevent the negative consequences of the environment and human health.
Technical Characteristics
Physical dimensions
110x62x31mm approx.
Mains power
~230V AC/50Hz ±10%
Electrical contact rating
5A/250VAC 5A/30VDC
Adjust limits
-5 °C to +90 °C
Differential
-3°C(-0.1°C to -10.0°C for authorized personnel)
Sensed temp. trimming
-3.0°C to +3.0°C (for authorized personnel)
Operating temperature
-10°C to +50°C
Temperature
Decrease button
ON/OFF button
ORDER
indicator
ON indicator
Temperature
Increase button
SET mode
indicator
Display
L
at
er
al
A
nc
ho
r
L
ate
ra
l A
nc
ho
r
Outside front view
MP-T
Wire Pass Through Opening
Wire Terminal Strip
Mounting Hole
Mounting Hole
L
ate
ra
l A
nc
ho
r
L
at
er
al
A
nc
ho
r
Remote Sensor Connector
Re mote
Sensor
A
B
230V AC
Electrical Contact
Wiring diagram
4 3 2 1
L N
Example for 230V burners
4 3 2 1
To burner
Short circuit
230V AC
L N
230 V AC
L N
\
MP-T
Digital Thermostat and Boiler Thermometer
A
27 Kotronos str. Aegaleo-Athens- Greece
Tel. +030 210 5693111, Fax.+030 210 5693093,
www.charmeg.gr
Doc
: MP T Users manual 7.docx
