Danfoss living connect® Z Installation Guide

Brand: Danfoss

Product: living connect® Z Electronic Radiator Thermostat

Introduction

The Danfoss living connect® Z is an electronic radiator thermostat designed for use with water-based room radiators. It is controllable by a Z-Wave certified controller that supports the appropriate command classes.

Preparation

The living connect® Z is supplied with:

Adapters for Danfoss RA valves
Adapters for valves with M30 x 1.5 (K) connections
Two alkaline AA batteries
A 2 mm Allen key

Inserting the Batteries

Remove the battery cover and insert two AA batteries, ensuring correct orientation. Rechargeable batteries must not be used. Battery replacement preserves program settings, but time and date settings are reset after two minutes.

Installing living connect® Z

Before installation, the display must show a flashing 'M'.

Mount the appropriate adapter (RA or K).
Tighten the RA adapter using the Allen key. Hand-tighten the K adapter (max. 5 Nm).
Screw the thermostat onto the adapter and tighten by hand (max. 5 Nm).
A large 'M' will flash; press the button [check-mark] to fix the thermostat.

Including the Device to a Network

Follow these steps to add the living connect® Z to a Z-Wave network:

Ensure the living connect® Z is factory reset.
Activate "Inclusion" on the Z-Wave controller.
Quickly press and release the button [check-mark] on the living connect® Z.
Observe both the controller and the living connect® Z for status updates.

Testing the Connection

To test the connection:

Press and hold the button [down-arrow] for at least 3 seconds until 'M' is displayed.
Press and hold the button [up-arrow] until 'LI' is displayed.
Press the button [check-mark] to test the connection.

The 'LI' display will disappear when the connection is made. If no connection can be made, the alarm [alarm-icon] and antenna [antenna-icon] symbols will flash.

Display and Buttons

Battery symbol: [battery-icon] Indicates battery status.
The set temperature: Displays the target temperature.
Network connection: [network-icon] Indicates network status.
Lock: [lock-icon] Child lock feature.
Alarm: [alarm-icon] Indicates an error or issue.
Buttons: Use [up-arrow] and [down-arrow] to navigate the display and menus and to set the temperature. Use [check-mark] to select and confirm.

Temperature Control and Adjustment

The temperature is usually controlled via the Z-Wave controller. However, it can be changed at any time using the thermostat's buttons. When a local adjustment is made, the thermostat sends a message to the controller, which then synchronizes other thermostats in the same room.

Press [up-arrow] or [down-arrow] to change the temperature.

Excluding the Device from the Network

To remove the device from a Z-Wave network:

Activate "Exclusion" on the Z-Wave controller.
Quickly press and release the button [check-mark] on the living connect® Z.
Observe both the controller and the living connect® Z for status updates.

Re-installation Mode

If the thermostat has been removed from the radiator and needs to be reinstalled, it is necessary to activate installation mode to prevent damage.

To enter installation mode:

Press and hold the button [down-arrow] until 'M' is displayed.
Press the button [check-mark] to withdraw the spindle. 'M' will flash.
Reinstall the thermostat on the valve.
Press and hold the button [check-mark] for approximately 3 seconds to fix the thermostat.

If the thermostat is moved to another room, ensure necessary changes are made in the controller.

Factory Reset

Remove the battery cover and take out one battery. Press and hold the button [check-mark] for approximately 5 seconds while reinserting the battery. The living connect® Z will now be factory reset and in mounting mode.

Wake Up

A controller can only communicate with the living connect® Z when the device is awake. The intervals when the thermostat is awake can be set using the "wake up command class". Press the button [check-mark] to manually wake up the device. It will stay awake for 10 seconds and send a node info.

Z-Wave Info

Device type: Slave

SDK: 4.55

Software version: 1.01

ProductID: 4

Explorer frames: YES

Implemented Z-Wave Device Classes

Z-Wave Device Classes	Device Class Implemented
Generic device	GENERIC_TYPE_THERMOSTAT
Specific device	SPECIFIC_TYPE_SETPOINT_THERMOSTAT

Supported and Controlled Z-Wave Command Classes

Z-Wave Command Classes	Description
COMMAND_CLASS_BATTERY	Get current battery status of living connect®.
COMMAND_CLASS_CLIMATE_CONTROL_SCHEDULE	Control a temperature offset to the thermostat setpoint of living connect®. The temperature offset is defined by schedules and schedule overrides.
COMMAND_CLASS_CLOCK	Set or get the current living connect® clock.
COMMAND_CLASS_MANUFACTURER_SPECIFIC	Get manufacturer ID of system.
COMMAND_CLASS_MULTI_CMD	A special Z-Wave command used by living connect® to encapsulate multiple commands in one command and thereby conserve battery life.
COMMAND_CLASS_PROTECTION	Set or get living connect® local protection mode. Possible local protection values are: 0 = no protection, 2 = fully locked (tamperproof).
COMMAND_CLASS_THERMOSTAT_SETPOINT	Set or get current thermostat setpoint of living connect®. Heating setpoint is the only supported setpoint type.
COMMAND_CLASS_VERSION	Get version of product and command classes.
COMMAND_CLASS_WAKE_UP	A special Z-Wave command used by living connect® to synchronize communication with its controller.

Technical Requirements and Info

After successful inclusion, the controller must send a WAKE_UP_INTERVAL_SET command to living connect® Z to specify where and when it should communicate wirelessly. If not, the thermostat cannot perform wake-ups, and the alarm [alarm-icon] and antenna [antenna-icon] symbols will flash.
The nodeID set in the WAKE_UP_INTERVAL_SET command must be for a permanently listening device that responds to commands sent from living connect® Z. This means PCs with USB sticks will only work if the PC is never turned off.
If living connect® Z does not get correct and timely replies (e.g., if the controller is turned off), it will automatically switch to 30-minute wake-up intervals. If at the next wake-up the controller replies as expected, living connect® Z will switch back to the original wake-up interval.
After sending the WAKE_UP_INTERVAL_SET command, the controller must assign return routes so living connect® Z can reach its destination nodeID.
living connect® Z will not commence periodic communications if it is in "Mounting mode". "Mounting mode" is for physical installation and should not be confused with "Inclusion". Refer to section "Installing living connect® Z, item 4" for instructions on how to leave "Mounting mode".
Although living connect® Z supports single commands, multi-commands must always be used to ensure two years of battery life.
If multiple thermostats are installed in the same room, it is important that the controller ensures they all have the same schedule and the same setpoint.

Technical Specifications

Specification	Details
Thermostat type	Programmable electronic radiator valve controller
Recommended use	Residential (pollution degree 2)
Actuator	Electro-mechanical
Display	Grey with back-light
Software classification	A
Control	PID
Transmission frequency	868.42 MHz
Transmission range	up to 30 m
Power supply	2 x 1.5V AA alkaline, class III
Power consumption	3 µW in standby, 1.2 W when active
Battery life	2 years
Low battery signal	Battery icon [battery-icon] will flash in display. If battery level is critical, the display will flash.
Ambient temperature	0 to 40 °C
Transportation temperature	-20 to 65 °C
Max. water temperature	90 °C
Temperature setting range	4 to 28 °C
Measurement interval	Measures temperature every minute
Clock accuracy	+/- 10 min./year
Spindle movement	Linear, up to 4.5 mm, max. 2 mm on valve (1 mm/s)
Noise level	<30 dBA
Safety classification	Type 1
Weight	177 g incl. RA adapter
IP class*	20

Tested for safety and EMC requirements as specified in EN 60730-1, EN 60730-2-9 and EN 60730-2-14.

Troubleshooting

Error code	Action
E1, E2, E3, E4	Contact your local Service Technician.
E5	The thermostat is not receiving the expected replies from the control system. Check that you have a Z-wave certified controller running and it has the necessary functionality to control the thermostat (see "Technical requirements").

Safety Precautions

The thermostat is not intended for children and must not be used as a toy. Do not leave packaging materials where children may be tempted to play with them, as this is extremely dangerous. Do not attempt to dismantle the thermostat as it contains no user-serviceable parts. If error code E1, E2 etc. is shown in the display or other defects appear, please return the thermostat to the distributor.

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