Namron Thermostat Touch Zigbee 16A

Instruction Manual

This manual provides detailed instructions for the Namron Thermostat Touch Zigbee 16A.

Technical Data

Dimensions: 81mm x 81mm, Depth: 28.4mm (front), 21.3mm (rear)

Installation

Safety Precautions

• Installation must be done by a qualified electrician.
• Power supply must be turned off during installation.

Wiring Diagram

The wiring diagram illustrates connections for Line (L), Neutral (N), and the Floor temperature sensor. It shows the internal terminal layout of the thermostat.

Mounting

1. Remove the display unit and front cover using a small screwdriver.
2. Insert wires into the correct terminals as shown in the wiring diagram. Suggested wire-stripping length is 8-10mm.
3. Fix the thermostat into the connection box by tightening the screws, ensuring no deformation. Suggested torque is 0.2-0.4Nm (2.0-4.1kgf.cm).

Symbol Overview

The thermostat display uses various symbols to indicate its status and settings:

• Set Temperature: Displays the target temperature.
• Monitor Set: Accesses monitoring functions (e.g., current, heating, anti-freezing, hysteresis).
• Operation Modes: Off, Manual, Auto, Drying, Away.
• Sensors: Floor temperature, Room temperature.
• Time/Shift Button: For time adjustments and shifting selections.
• Mode Button: To cycle through operation modes.
• Function Button: Used for saving, confirming, or entering sub-menus.
• Navigation Buttons: [Up arrow] and [Down arrow] for adjusting values.
• Other Settings: Display Auto Off, Child Lock, Schedule, Heating status, Time display.

Settings Menu

To enter the settings menu:

1. From the Home Interface, while the device is in OFF mode, press and hold the [Up arrow] and [Down arrow] buttons simultaneously for over 5 seconds.
2. Use the [Up arrow] and [Down arrow] buttons to select a setting item, then press the [F button] to enter.

The settings menu includes Preview, Zigbee settings, Schedule, Monitor settings, Time/Date settings, and Other settings.

Time Setting

Select TIME/DATE from the Home Interface to access the TIME/DATE SET interface. Use the navigation buttons to select items and modify values, then press the [F button] to save or the [M button] to quit without saving.

The device acquires local time from a bound Time Cluster (e.g., on the gateway) automatically.

Standby Interface

The device enters standby mode after 2 minutes of inactivity when not in OFF mode. If 'Display Auto Off' is enabled, the display turns off after 30 seconds of inactivity. In OFF mode, the display turns off after 2 minutes of inactivity.

Preview Interface

From the Home Interface, users can enter the PREVIEW interface to view basic configurations, energy consumption, date, and floor temperature.

Control Modes

Operation modes can be switched by short-pressing the [M button] on the Home Interface. The selected mode will be displayed for 3 seconds. Alternatively, short-press the [F button] to select a mode when they are cycling. Press and hold the [M button] for over 3 seconds to directly select Away mode, and press and hold again for 3 seconds to quit Away mode.

1. Away Mode Schedule

Allows users to set departure and return times, and the desired temperature for the period. If the end time is set to 0, the device operates in antifreeze mode (recommended 4-10°C, default 6°C).

2. Auto Mode Schedule

In Auto Mode, the device follows a pre-set temperature schedule. Users can configure weekly schedules for different temperature settings at specific times. Two methods for setting schedules are available via the System Setting Interface.

Default Schedules:

• Monday-Friday: 7:30 (24°C), 12:00 (20°C), 18:00 (16°C), 22:30 (18°C)
• Saturday-Sunday: 7:30 (24°C), 12:00 (20°C), 18:00 (18°C), 22:30 (18°C)

3. Manual Mode

The device controls the heating system based on the current set temperature, adjustable via the [Up arrow]/[Down arrow] buttons or a Zigbee gateway.

4. Dry Mode Schedule

Designed for quickly drying floors, this mode heats for a specified duration (5-100 minutes). The mode after drying can also be configured (e.g., Auto, Manual, Away, or Off).

5. Off Mode

The device is in an idle status.

Advanced Features

Window Open Detect

When enabled (default is disabled), the thermostat detects a rapid temperature drop (indicating an open window) and forces the relay off to save energy. The function is automatically disabled after 10 minutes or if the temperature recovers.

Monitor Set

Provides real-time monitoring of over-current, over-heat, and freezing conditions. Users can access this interface from the Home Interface by pressing the MONITOR SET function.

Over-current Alarm

Defaults to 16A. If the current exceeds the set value, the relay is forced off and the state is reported to the gateway. The beeper sounds when triggered. Pressing and holding the [M button] for over 3 seconds or resetting the device cancels the alarm. A 'heating forbidden' icon may appear for 120 seconds.

Max Floor Temp Protection

When the control type is 'Room+Floor sensor', this function is active. If the floor sensor temperature exceeds the 'Max floor temp' setting (default 27°C), the relay is forced off. The alarm is cancelled when the floor sensor temperature drops below (Max floor temp - Hysteresis). Manual cancellation is possible via the [M button].

Hysteresis

Prevents rapid relay switching by requiring the sensor temperature to deviate from the setpoint by a certain margin (default 0.5°C) before heating is activated or deactivated.

Key Vibration Set

Configures button vibration or buzzer level (Off, Low Level, High Level).

Display Brightness Set

Adjusts the OLED display brightness (Low Level, Mid Level, High Level).

Display Auto Off

Enables or disables the automatic display turn-off feature. Can be activated by holding [F button] and [Up arrow] buttons for over 10 seconds.

Display Temperature Set

Selects which temperature is displayed on the Home page: Floor Temp or Home Temp (indoor air temperature).

Other Set

This menu includes settings for:

• Temperature Compensation: Adjusts for sensor tolerance (-5°C to +5°C in 0.5°C steps).
• Re-power Status: Determines the device state after a power reset (last status or default mode).
• Internal Over Heat Protection: Temporarily turns off the relay if the internal device temperature becomes too high.
• Child Lock: Enables or disables keypad lockout to prevent unintended changes. Activated by holding [F button] and [Up arrow] buttons for over 10 seconds.

Zigbee Configuration

Zigbee Network Introduction

Access the Zigbee network management interface via 'Network Set' on the Home Interface.

Adding to a Zigbee Network

Operate your Zigbee gateway to add the device. Select 'Add', then press the [F button]. The device will search for and attempt to join the network. Status indicators include 'Inclusion...', 'Fail', or 'Inclusion OK'.

Removing from a Zigbee Network

Use your Zigbee gateway to remove the device. Select 'Remove', then press the [F button]. The device sends a removal request. Status indicators include 'Exclusion...', 'Fail', or 'Exclusion OK'. Removal restores factory defaults and clears bindings.

Factory Reset

Select 'Reset' and press the [F button] to restore all parameters to factory defaults and remove the device from the Zigbee network. Status indicators include 'Reset...', 'Fail', or 'Reset OK'.

Configure Device Operation Mode through Zigbee

Zigbee operation modes (like Away mode) are managed via the 'Occupancy' attribute of the Thermostat cluster (0x0201) and OccupancySensing cluster (0x0406). The thermostat can interpret gateway commands to switch between modes.

Zigbee Interface

The thermostat supports the following Zigbee application endpoints:

• Endpoint 0 (0x0000): ZigBee Device Object (ZDO) for standard management features.
• Endpoint 1 (0x0104): Thermostat functionality (Device ID 0x0301).
• Endpoint 2 (0x0104): OTA (Over-The-Air) firmware upgrades (Device ID 0x0007).
• Endpoint 242 (0xF2): GreenPower support (Device ID 0x0021).

Key Zigbee Clusters and Attributes

The thermostat interacts with various Zigbee clusters:

• Basic Cluster (0x0000): Provides device information like Manufacturer Name ('NAMRON AS'), Model Identifier ('4512737 & 4512738'), firmware version, etc. Supports factory reset.
• Thermostat Cluster (0x0201): Manages core thermostat functions including Local Temperature, Outdoor (Floor) Temperature, Occupancy status, Local Temperature Calibration, Occupied/Unoccupied Heating Setpoints, and HVAC relay status.
• Proprietary Attributes: Control various device settings such as Display Brightness, Button Vibration Level, Floor Sensor Type selection (NTC 10K/25 default), Control Type (Room sensor default), Power Up Status, Dry Time, Mode After Dry, Temperature Display preference, Window Open Check threshold, Hysteresis settings, and Away Mode settings.
• Electrical Measurement Cluster (0x0b04): Reports RMS Voltage, RMS Current, and Active Power. Includes alarms for Over-current.
• Time Cluster (0x000A): Synchronizes time based on UTC.
• Thermostat User Interface Configuration Cluster (0x0204): Controls Temperature Display Mode and Keypad Lockout settings.

Commands like 'Reset to Factory Defaults', 'Add Scene', 'View Scene', 'Add Group', and 'Setpoint Raise/Lower' are supported.