Micro Matic MTC3-1991 User Manual

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MTC3-1991

User Manual

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Summary of Contents for Micro Matic MTC3-1991

Page 2: Table Of Contents
Contents Contents PWM : Pulse Width Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 3: Introduction
Introduction Thank you for buying our MTC3 thermostat . The front cover can be flipped down . We hope you will enjoy the ease of use offered by the well-known user interface and design . Behind the front cover, on the left side of the front, there This high-quality thermostat is designed to have a is an on/off switch, up = on / down = off .
Page 4: Menu Overview
Menu Overview Menu Setting Options Factory Setting Menu Setting Options Factory Setting APP: A; F; C; AF; AE oFF; on; AUt SChi: SCLo - 40 .0°C 40°C diF: 0 .3-10 .0 0 .4 SCLo: 0 .0°C - SChi 0°C CYHi: 10-60 Lihi: LiLo - 40°C 28°C CYLo: 10-30...
Page 5: App : Sensor Application 1/2
APP : Sensor Application 1/2 This option allows you to choose which sensor is used to control the heating system . If a factory reset is performed, the thermostat will autodetect an external sensor . • A: With this setting, the internal room sensor inside the thermostat controls the heating system .
Page 6: App: Sensor Application 2/2
APP: Sensor Application 2/2 • AE: With this setting, an optional external room sensor (connected to the floor sensor terminals) controls the heating system . How to execute it: • Access the menu . • Scroll through the menu to APP . •...
Page 7: Sca : Temperature Scale
SCA : Temperature Scale This option allows you to set the minimum and maximum temperatures to which the thermostat can be set . Operating temperatures: • SChi: Maximum Temperature Scale can be set to between the Minimum Temperature and 40°C . •...
Page 8: Li : Floor Temperature Limit
Li : Floor Temperature Limit This option allows you to set the minimum and maximum limits for floor temperature . Floor limit temperatures: Floor limit temperatures allow you to set the highest (Lihi) and lowest (LiLo) permissible floor temperature during room temperature control with the sensor application AF .
Page 9: Tp : Temperature Readout
TP : Temperature Readout Depends on which sensors are connected and which sensor application is chosen . Temperatures from the floor sensor and the internal room sensor can be monitored here . Display settings are not applicable if the sensor applica- tion is set to C .
Page 10: Lcd : Display Settings
LCD : Display Settings This option allows you to select what data you want to be shown in the idle display . SCA = Temperature scale setting: = Celsius (nU = numerical 0-100%) DiS = Displayed in idle display: = Setpoint temperature = Measured temperature Display settings are not applicable if the sensor applica- tion is set to C .
Page 11: Adj : Adjust
ADJ : Adjust This option allows you to calibrate the measured room temperature . You should calibrate the sensor if the temperature reading differs from the actual temperature . The measured temperature has to be entered . Note that with sensor application F, the temperature is measured in the floor, this temperature would be higher than the ambient temperature .
Page 12: Nsb : Night Setback
NSB : Night Setback This option allows you to set the value by which the tem- perature should be reduced when NSB is activated . NSB is activated either by the event schedule or with a signal from an external timer connected to terminal S . When the NSB signal is active, a half-moon icon is shown in the display together with the lowered setpoint temperature .
Page 13: Def : Frost Protection
DEF : Frost Protection This option allows you to set the parameters for any pos- sible frost protection function . An external signal can activate the frost protection, the thermostat will then maintain a fixed floor/room temper- ature . The function is factory-set to 8°C but can be set to values from 5-10°...
Page 14: Pwm : Pulse Width Modulation
PWM : Pulse Width Modulation With this setting, you can change the duration of the heating periods . Off: Simple “on/off” regulation, where the relay is closed when the measured temperature is below the setpoint, and opened when the measured temperature is above the setpoint .
Page 15: Pli : Power Limit 1/2
PLI : Power Limit 1/2 This thermostat complies with EN 50559 (VDE 0705-559) for electrical floor heating . The regulation applies to electrical floor heating with a maximum floor weight of 4 kN/m² . To ensure that hotspots due to unintentionally covering up part of the surface are avoided, the heating function can be time-limited as per EN/DIN .
Page 16: Pli : Power Limit 2/2
PLI : Power Limit 2/2 Equation to calculate number of minutes that could be entered in the PLI menu - when an average heating effect is desired: Average desired heating effect per m ∗ 60 min . Floor heating element effect per m Note! If the result of the equation is negative, then nothing should be entered .
Page 17: Time : Time And Event Setting 1/2
TIME : Time and Event Setting 1/2 The MTC3 has a timer function that keeps track of the current weekday and time of the day . It is possible to select different event schedules for the MTC3 . The events differ in the number of days that are using 4 events (with a setback period during both night and daytime) and 2 events (only using a setback period for the night) .
Page 18: Time : Time And Event Setting 2/2
TIME : Time and Event Setting 2/2 Time schedule for the events: 4-event: Time: Temperature: Morning 06:00-08:00 Setpoint Daytime 08:00-16:00 Setpoint - NSB Evening 16:00-23:00 Setpoint Night 23:00-06:00 Setpoint - NSB 2-event: Time: Temperature: How to execute it: 08:00-23:00 Setpoint •...
Page 19: Sw : Software Version
SW : Software Version This function provides a readout containing the software version number . How to execute it: • Access the menu . • Scroll through the menu to SU . • Press the centre button to enter the software readout . Menu structure: •...
Page 20: Done : Exiting The Menu
Done : Exiting the Menu This is the exit from the menu . Note there is a timeout function . If no button is pressed for 30 seconds, the thermostat will return to the main screen . Note the settings are saved when the menu is exited . How to execute it: When in the menu: •...
Page 21: Troubleshooting And Additional Information
Troubleshooting and Additional Information Error codes Child Lock E0: Internal fault . The child lock can be activated directly if the thermostat Heating is shut off . is idle or if the thermostat’s backlight is activated but never from within the menu . E1: Built-in sensor fault .
Page 22: Changing The Front Cover
Changing the Front Cover • Open the front cover • Grasp the front cover with the index, middle and ring finger on the upper side of the front cover, as close as possible to the thermostat . • Pull the front cover downwards . •...
Page 23: Contact : Help And Support
Contact : Help and Support MICRO MATIC NORGE AS Postboks 264, Nye Vakåsvei 28, N - 1379 Nesbru Tlf: +47 66 77 57 50 · Faks: +47 66 77 57 90 firmapost@micro-matic .no · www .micro-matic .no The OJ trademark is a registered trademark belonging to OJ Electronics A/S · © 2016 OJ Electronics A/S...