Installation and Operating Instructions
UTE 3500
UTE 3800-U
Important!
The device may only be opened by an electrically skilled person and must be installed as shown on the circuit diagram on the device and in these instructions. The existing safety regulations must be followed. The relevant installation measures must be taken to achieve the requirements of protection class II. This independently mountable electronic device is used to control the temperature in dry and enclosed rooms only, with normal environment. This device conforms to EN 60730, it operates according to type 1Y (UTE 3500) and 1B (UTE 3800-U).
1. Area of use
The electronic temperature controllers UTE 3500 and UTE 3800-U can be used to control the floor and room temperature. They are suitable for water-based and electric heating systems.
2. Installation Environment
- The thermostat should be mounted in a place in the room that is easy to access for operation.
- Mounting height: approx. 1.5 m above the floor.
- Preference should be given to installation on an internal wall. Avoid external walls and draughts from windows and doors.
- Ensure that the room's normal convection air reaches the thermostat freely without restriction. The thermostat should therefore not be mounted inside shelf units or behind curtains and similar coverings.
- Extraneous heat has a negative influence on the control accuracy.
- Direct sunshine, proximity to televisions, radios and heaters, lamps, stoves and heating pipes must be avoided.
- Install in flush-mounting box 60mm
3. Electrical Connection
Important! Disconnect the electric circuit from the mains.
Connection in the following steps:
- Connect the Powermodule according to the circuit diagram (see bottom of housing or circuit diagram in these instructions.) Note the mounting direction of the power module in the box (arrow pointing upwards)
- Mount the cover frame with the decorative frame holder on the power module
- Mount the logic module to the Decorative Frame Holder
4. Wiring Diagram
Abbreviations in wiring diagram:
- L = Outer conductor (phase)
- N = Neutral conductor (previously Mp)
- SSS = Universal Input (Setback/Presence)
- PWM = Control algorithm
- = Load Output Heating
- = Load Output Cooling
- H/C> = Heating/Cooling Change-over Input
Indicator LEDs:
- Red: Active Heating
- Green: Unoccupied Mode
- Blue: Active Cooling
- Flashing Green: Window open detection
- White: Matter WiFi Connection
- Yellow: WiFi Connection Error
5. Presets (depending on variant)
Selection after the first start or inside the menu:
- P2: Hydronic Underfloor Heating - Room
- P3: Hydronic Radiator - Room
- P4: Blow Convector - Room
- P5: Electrical Radiator, Infrared - Room
- P6: Hydronic Underfloor Heating - Limiter
- P7: Electrical Underfloor Heating - Floor
- P8: Electrical Underfloor Heating - Limiter
6. Technical Data
| UTE 3500 | UTE 3800-U | |
|---|---|---|
| Voltage supply | 230 V AC 50/60 Hz | 230 V AC 50/60 Hz |
| Temperature setting range | 5°C ... 30°C | 5°C ... 30°C or 10°C... 40°C (depending on selected preset) |
| Output | Triac (noiseless) | Relay |
| Prelim. xxxxXXXX Switching current | 5 actuators 3 W each electrothermal (15 W) | 16 (4) A |
| Temperature setback | PWM or 2 point selectable | PWM or 2 point selectable |
| Frost protection | 5 min... 20 min selectable | 5 min... 20 min selectable |
| Valve protection | 0,1 K or 0,5 K selectable | 0,1 K or 0,5 K selectable |
| Temperature in unoccupied mode | Temperature in unoccupied mode adjustable via menu | Temperature in unoccupied mode adjustable via menu |
| Temp.-Limit acc. to EN 50559 | 5°C | 5°C |
| Heating/Cooling Input | Duration and timing adjustable via menu | Duration and timing adjustable via menu |
| Universal Input | Cable length max. 100 m | Setback Input or Presence Input Selectable |
| Floor probe | Setback Input or Presence Input Selectable | Example: F 193 720, NTC, length: 4 m Max. extension: 50 m |
| Setpoint range limitation | Via User Menu | Via User Menu |
| Connectivity | Matter WiFi V1.1 Via Smartphone-Connection (Matter WiFi) | Matter WiFi V1.1 Via Smartphone-Connection (Matter WiFi) |
| Heating Schedules | Via Installer and User Menu directly on the device | Via Installer and User Menu directly on the device |
| Parametrization | Voltage and current for EMC emission testing purposes | Voltage and current for EMC emission testing purposes |
| Ambient temperature | 0 ... 40°C | 0 ... 40°C |
| Storage temperature | -25 ... 60°C | -25 ... 60°C |
| Protection class | III | III |
| Rated pulse voltage | 4 kV | 4 kV |
| Energy class (acc. to EU 811/2013, 812/2013, 75°C | 230 V, 0,1 A | 230 V, 0,1 A |
| Protection class | II | II |
| Degree of protection | IP30 | IP30 |
| Pollution degree | 2 | 2 |
| Temperature for ball indentation test | 75°C | 75°C |
| Energy class | IV = 2% | IV = 2% |
Actuator NC/NO
Via the installer menu it can be adjusted whether the thermostat controls the actuators normally closed (NC) or normally open (NO). The preset is normally closed (NC).
Heating / Cooling input
The H/C-terminal connected to voltage means cooling mode, not connected means heating mode. In case of cable used longer than 100m an anti-interference capacitor (Merten 542895 Capacitor 230 VAC 0,33µF or comparable) between control line H/C and neutral line N can be installed at any position to avoid a malfunction.
7. Dimensions
A diagram showing the dimensions of the device is present here. The dimensions are approximately 71mm x 44mm with a depth of 17mm.
8. Part Overview
Diagrams showing the Power Module, Decorative Frame Holder, Logic Module are present.
10. Operation in normal mode
Visual Feedback
- Locked: Displays a locked icon.
- Unlocked: Displays an unlocked icon.
Menu Item
- Setpoint: Change occupied setpoint using [+] or [-] Button. Settable range limits are adjustable via user menu.
- Child Lock: Lock/Unlock by pressing and holding [+] and [-] buttons for 5 seconds. Default is Unlocked.
11. User menu
To access the user menu, press and hold the [-] and [O] buttons simultaneously for 3 seconds. The WiFi LED lights up yellow. The following settings can be made:
| User-Menu item | Function description | Option and display of the dot matrix LEDs | Default values | UTE 3500 | UTE 3800-U |
|---|---|---|---|---|---|
| 01 | Idle brightness | 00: 0% (off), 01: 10%, 02: 25%, 03: 50%, 04: 75%, 05: 100% | 00 | • | • |
| 02 | Activity timeout | 10: 10 secs, 30: 30 secs, 60: 60 secs, 2m: 2 min, 4m: 4 min | 60 | • | • |
| 03 | Show icons in idle mode | no: Disable, YES: Enable | YES | • | • |
| 04 | Setpoint change indication (via Smart Home) | no: Disable, YES: Enable | YES | • | • |
| 05 | Room sensor correction in 0,1°C steps | -2,5 ... +2,5 | 0 | • | • |
| 06 | Min. setpoint | 5 ... 30°C (room control range), 10 ... 40°C (floor control range) | room: 5, floor: 10 | • | • |
| 07 | Max. setpoint | 5 ... 30 °C (room control range), 10 ... 40 °C (floor control range) | room: 30, floor: 40 | • | • |
| 08 | Unoccupied temperature (Heating) in °C | min. setpoint ... max. setpoint | 18 | • | • |
| 09 | Unoccupied temperature (Cooling) in °C | min. setpoint ... max. setpoint | 22 | • | • |
| 10 | Heating off | no: Cancel and return, Yes: Confirm | no | • | • |
| 11 | Stand-by (Heating off, display & WiFi off) | no: Cancel and return, Yes: Confirm | no | • | • |
| 98 | Reset Matter fabric | no: Cancel and return, Yes and hold [O] for 3 seconds: confirm | no | • | • |
| 99 | Reset user data | no: Cancel and return, Yes and hold [O] for 3 seconds: confirm | no | • | • |
12. Installer Settings
Installer Menu (Level 1):
Depending on the respective heating application, preset values and functions can be selected at menu level 1. Press and hold [+] und [O] buttons simultaneously for 5 seconds to access the menu. Enter code: 19. The WiFi-LED lights up purple.
| Menu item | Heating application | UTE 3500 | UTE 3800-U |
|---|---|---|---|
| P2 | Hydronic Underfloor Heating - Room | • | • |
| P3 | Hydronic Radiator - Room | • | • |
| P4 | Blow Convector - Room | • | • |
| P5 | Electrical Radiator, Infrared - Room | • | • |
| P6 | Hydronic Underfloor Heating - Limiter | • | • |
| P7 | Electrical Underfloor Heating - Floor | • | • |
| P8 | Electrical Underfloor Heating - Limiter | • | • |
| 99 | Ex-factory reset | ||
| no: Cancel and go back | |||
| Yes: Yes and hold [O] for 3 seconds: confirm |
Overview of set values for selected preset
| Function description | P2 | P3 | P4 | P5 | P6 | P7 | P8 |
|---|---|---|---|---|---|---|---|
| Floor Probe Type in kΩ (UTE 3800-U only) | 00 (Not fitted) | 00 (Not fitted) | 00 (Not fitted) | 00 (Not fitted) | 10 | 10 | 10 |
| Min Floor limit in °C (UTE 3800-U only) | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Max Floor limit in °C (UTE 3800-U only) | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Control Method | PWM 20 Min | PWM 10 Min | PWM 20 Min | PWM 20 Min | 2-pt (ON/OFF) | 2-pt (ON/OFF) | 2-pt (ON/OFF) |
| 2-pt min On/Off Time | 0,5 K | 0,5 K | 0,5 K | 0,5 K | 02 | 02 | 02 |
| Application Type (Control sensor) | Room control | Room control | Room control | Room control | Room control with floor limit | Floor control | Room control with floor limit |
| Actuator Type | Normally closed valve | Normally closed valve | Normally closed valve | Normally closed valve | Normally closed valve | Normally closed valve | Normally closed valve |
| Universal Input Configuration | Setback | Setback | Setback | Setback | Setback | Setback | Setback |
| Cool Input Configuration (UTE 3500 only) | On | On | On | On | On | On | On |
| Occupancy - Switch to unoccupied delay (min) | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Occupancy - Switch to occupied delay (sec) | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Valve Protection | On | Off | Off | Off | On | Off | Off |
| Valve Protection - Maximum Idle Time | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Valve Protection - Antildle Exercise Time | 03 | 03 | 03 | 03 | 03 | 03 | 03 |
| Temporal Limit acc to EN50559 (UTE 3800-U floor control only) | Off | Off | Off | Off | On | On | On |
| Window open detection | Off | Off | Off | Off | Off | Off | Off |
| Window open detection - Threshold (in 0.1°C steps) | 02 | 02 | 02 | 02 | 02 | 02 | 02 |
| Windows open detection - Event Duration (in Min) | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Windows open detection - Guard Period (in Min) | 02 | 02 | 02 | 02 | 02 | 02 | 02 |
Installer menu (Level 2):
For advanced settings of individual menu items after preset selection. Press and hold the [+] and [O] buttons simultaneously for 3 seconds. The WiFi LED lights up purple. Enter code: 32. Menu options: See next page.
12. Error Codes
- E1 = Room sensor error
- E2 = Floor sensor error
13. Matter WiFi Configuration
The thermostat can be connected to smart home apps and the respective controllers/hubs from Apple, Google, Amazon and Samsung via Matter.
How-to Video:
To integrate the thermostat into a Smart Home App and the respective Matter network, scan the QR code on the back of the logic module with a smartphone or type in the Matter provisioning code. Press the [O] button for 5 seconds until the thermostat displays "Jn" for Join Mode. The WiFi LED lights up yellow.
If an error occurs during connection, the controller displays "Er" for error: The WiFi LED lights up red.
Note on Disposal: This product should not be disposed of with household waste. Please recycle the products where facilities for electronic waste exist. Check with your local authorities for recycling advice.
