Neomitis RTE7D/RTE7BD Wired Digital 7 Day Programmable Room Thermostat
Installation and Operating Instructions
Installation
Installing Batteries
- Remove the battery cover located on the front of the thermostat.
- Insert 2 AA batteries, observing correct polarity as indicated on the thermostat.
- Replace the battery cover.
Mounting of Wall Mounting Plate
The digital room thermostat is fixed to the wall using the supplied mounting plate.
- Unscrew the two screws located under the thermostat.
- Remove the wall plate from the thermostat.
- Secure the wall plate to the wall using the provided screws, aligning with the horizontal and vertical holes.
Wiring
All electrical installation work should be performed by a qualified electrician. Ensure the mains supply to the system is isolated before installation. Wiring must comply with IEE regulations. This product is for fixed wiring only.
Terminal descriptions:
- COM: Live
- NC: Normally closed switch out (Satisfied)
- NO: Normally open switch out (call for Heat)
Recommended Locations for Thermostat
To ensure accurate readings and effective control, install the thermostat approximately 1.5 meters above floor level on an inside wall. Avoid direct sunshine and sources of heat or cold (e.g., radiators, cold draughts).
Important: The thermostat measures the temperature at its location. It does not account for temperature differences in other parts of the house if the temperature is not uniform.
Mounting of the Thermostat
- Replace the thermostat onto the wall mounting plate.
- Secure the thermostat by screwing in the two locking screws located under the thermostat.
Programming
Optimisation Explained (Optimum Start)
Historically, many heating systems waste energy by firing unnecessarily early. Optimum Start calculates how long the house takes to warm up based on ambient temperature and fires the boiler efficiently to reach the target temperature by the programmed time. This can save up to 10% on energy costs.
Dual Function Optimisation: Choose between priority to comfort or energy savings.
- OPTI COMFORT Mode: Prioritises maximum comfort by optimising boiler operation to achieve the setpoint temperature at the start of occupancy periods.
- OPTI ECO Mode: Prioritises energy savings by optimising boiler operation, allowing slight temperature drops at the beginning and end of comfort periods to maximise efficiency.
To change the optimisation type, refer to Advanced Installer Settings.
Installer Settings - Advanced Installer Setting
Access advanced settings by moving the mode slider to the 'Prog' position and pressing the 'Enter' button for 5 seconds.
Installer Mode Access Options:
- Set 12 or 24 hours clock
- Enable/disable automatic summer/winter change
- Set °C/°F temperature unit
- Set calibration of the displayed temperature
- Program lock (disables manual override and boost)
- Select the type of control: 2 points (ON/OFF) or TPI (Proportional control)
- Optimisation choice (OP CONF, OP ECO, OP OFF)
Set Date and Clock
- Move the Programming slider to the 'Prog' position. The default year (e.g., 2019) will flash. Use the dial to adjust the year. Press 'Enter' to confirm.
- The default month (e.g., 01) will flash. Use the dial to adjust the month. Press 'Enter' to confirm.
- The default day (e.g., 01) and corresponding day of the week will flash. Use the dial to adjust the day and day of the week. Press 'Enter' to confirm.
- The default time (e.g., 12:00) will flash. Use the dial to adjust the current time. Press 'Enter' or move the Programming slider to confirm and finish.
Note: Automatic summer/winter time change is enabled by default.
Set the Program Day
Move the Programming slider to the 'Prog' position. The current day setting will flash (default is Monday).
- Option 1 (Single Day): Rotate the dial to select the desired day (e.g., Monday) and press 'Enter'. The underscore will become solid. Move the slider to another position to confirm.
- Option 2 (Multiday): Select the first day by pressing 'Enter', then use the dial to add additional days, pressing 'Enter' to confirm each. Move the slider to another position to confirm.
Set the Program Comfort Period
Comfort periods define when the thermostat maintains the 'Comfort' temperature.
To set the first Comfort start time:
- Move the Programming slider to the 'Prog' position. The default time is 6:30 am.
- Use the dial to set the desired start time. Move the Program slider to the next position to confirm.
To set the first Comfort end time:
- Move the Programming slider to the 'Prog' position. The default time is 8:30 am.
- Use the dial to set the desired end time. Move the Program slider to the next position to confirm.
Repeat for additional comfort periods (up to three). Default times are provided for Comfort periods 2 and 3.
Note: To disable a period, set the End time to coincide with the Start time.
| Comfort period | Default times |
|---|---|
| Comfort period 2 | Start at 12:00 pm, End at 02:00 pm |
| Comfort period 3 | Start at 05:00 pm, End at 10:00 pm |
Temperatures Setting
Two temperatures can be set: Comfort and Economy.
Comfort Temperature:
- Move the Programming slider to the 'Prog' position. The default is 20°C.
- Use the dial to set the temperature between 5°C and 30°C (in 0.5°C increments). Move the slider to confirm.
Economy Temperature:
- Move the Programming slider to the 'Prog' position. The default is 16°C.
- Use the dial to set the temperature between 5°C and 30°C (in 0.5°C increments). This is the temperature maintained outside comfort periods. Move the slider to confirm.
Move the program mode slider to the 'Run' position to confirm all settings.
Operating
Mode Selection and Description
Mode sliders sequences: Auto mode ▶️ Comfort mode ▶️ Economy mode ▶️ Standby.
- AUTO: The unit controls according to the programmed time and temperature settings.
- COMFORT: Permanent comfort mode, maintaining the comfort temperature setpoint continuously. Default is 20°C.
- ECO: Permanent economy mode, maintaining the economy temperature setpoint continuously. Default is 16°C.
- STANDBY: Permanent standby mode with frost protection (default 8°C). Displays ambient temperature. Use when away from home to prevent frost damage.
Manual: A Temporary Change
Indicates when the temperature has been manually adjusted from the setpoint. This manual temperature operates until the next scheduled switching time. Active only in AUTO or COMFORT modes.
BOOST
Boost mode is a temporary setting allowing operation at the comfort temperature for 1 hour. After 1 hour, the device reverts to its prior setting. BOOST can be activated from any running mode by pressing the 'Enter/Boost' button. The time and day display will be replaced by a countdown.
Factory Settings
To restore factory settings, press and hold a specific area (indicated in the original manual) for over 3 seconds. All LCD symbols will appear for 2 seconds, and settings will be restored.
| Settings | Factory settings |
|---|---|
| Comfort temperature | 20°C |
| Eco temperature | 16°C |
| Comfort period 1 | Start at 06:30 am, End at 08:30 am |
| Comfort period 2 | Start at 12:00 pm, End at 02:00 pm |
| Comfort period 3 | Start at 05:00 pm, End at 10:00 pm |
Troubleshooting
- Display Disappears: Check and replace batteries (use alkaline 1.5V AA LR6 only; do not use rechargeable).
- Heating Not Coming On/Off: Ensure thermostat is calling for heat. Check boiler status. Relocate thermostat if near heat/cold sources. Check communication between thermostat and boiler.
- No Response When Moving Mode Slider: Check for the lock symbol. Unlock the thermostat via the 'Program Lock' setting.
- Thermostat in Auto Mode, but Boiler Not Responding: Check thermostat condition. Change batteries.
- Thermostat Not Controlling Properly: Ensure sensor is not affected by heat/cold sources. Check thermostat-boiler communication. Contact installer if issues persist.
- Room Temperature Too Low / Boiler Not Providing Enough Heat: Check active mode (Eco, Standby, Auto may reduce temperature). Increase desired temperature.
- Room Temperature Lower Than Setpoint: Check programming (Eco period?). Ensure displayed time is correct.
- Mistake During Setting: Restore factory settings.
- System Not Heating but On: If indicator light is on but no heat, contact installer.
- Delay Between Mode and Requirement: Optimisation feature may cause slight offsets for comfort or energy saving.
- Heating Comes On Early / Off Late: Thermostat may be in OPTI Comfort mode. Adjust optimisation type if needed.
- Heating Does Not Come On / Off Early: Thermostat may be in OPTI ECO mode. Adjust optimisation type if needed.
- Persistent Problems: Contact your installer.
- "Service Due Soon" or "Service Due" Displayed: Contact your installer or landlord.
Technical Specifications
| Specification | Details |
|---|---|
| Power supply | 2 x 1.5V AA (LR6) alkaline batteries |
| Battery life | Approx. 2 years |
| Relay outputs | 5(2)A |
| Rated impulse voltage | 4000V |
| Micro disconnection | Type 1B |
| Pollution degree | 2 |
| Automatic action | 100,000 cycles |
| Class | II |
| Environment: Operation temperature | 0°C to +40°C |
| Manual temperature setting range | +5°C to +30°C |
| Storage temperature | -10°C to +60°C |
| Humidity | 80% at +25°C (without condensation) |
| Protection rating | IP30 |
Note: Annual battery replacement is recommended as part of system service and before leaving the property empty for extended periods.
Declarations of Conformity: The product complies with UKCA and EU directives and harmonised standards for electrical equipment safety, electromagnetic compatibility, and RoHS.
Manufacturer: Neomitis Ltd, 16 Great Queen Street, Covent Garden, London, WC2B 5AH, UNITED KINGDOM.
Control Class: Class IV - PID Room Thermostat for on/off heating devices.
Disposal: The product symbol indicates it must be disposed of at a special recycling point according to European Directive WEEE 2012/19/EU. Do not dispose of as household waste.
Note
The service interval function may be enabled by an installer to remind users of annual boiler inspections. If enabled, the unit will display "Service Due Soon" or "Service Due". Normal functions continue during the countdown. After the countdown, only the 1-hour boost may operate, or the unit may default to 20°C.
What is a Room Thermostat
A room thermostat controls the heating system by sensing air temperature. It switches the heating on when the temperature falls below the setpoint and off when it reaches it. Setting a higher temperature does not make the room heat up faster; this depends on the heating system's design (boiler, radiators). Setting a lower temperature saves energy.
The heating system will not operate if a time switch or programmer has turned it off. For optimal use, find the lowest comfortable temperature setting and leave it. Adjusting it higher wastes energy.
If your system uses radiators, a single room thermostat controls the whole house. Individual room temperatures can be managed with thermostatic radiator valves (TRVs). If TRVs are not fitted, choose a temperature suitable for the whole house. If TRVs are fitted, set a slightly higher temperature to accommodate colder rooms, then adjust TRVs to prevent overheating.
Room thermostats require free airflow for accurate sensing. Avoid covering them with curtains or blocking them with furniture. Nearby heat sources (electric fires, TVs, lamps) can affect performance.
