Qubino Flush 2 Relay (ZMNHBD3) — Extended User Manual

Extended user manual for the Qubino Flush 2 Relay (model QUZMNHBD3 and related ZMNHBD-series variants). This module remotely controls up to two electrical devices — door locks, door openers, small appliances, fans, or lights. It measures power consumption of both connected devices and can be paired with an optional digital temperature sensor to build complex, temperature-driven scenes. It also acts as a Z-Wave repeater to extend network range and stability.

Overview & Supported Functions

• Turn ON/OFF Device 1, Device 2, or both together
• Watt power measurement for Device 1, Device 2, or both combined
• kWh energy measurement for Device 1, Device 2, or both combined
• Automatic ON/OFF timers per device or for both together
• Optional digital temperature sensor input (model ZMNHEA1, sold separately)
• Associations for direct device-to-device communication without a gateway
• Z-Wave signal repeater
• Auto-inclusion for quick setup

Use Cases

Installed behind a wall switch

• Remotely control two lights
• Remotely control ceiling fan and light
• Remotely control wall-mounted fan and light
• Remotely measure room temperature (with optional sensor ZMNHEA1)

Installed in an electrical box

• Remotely control two irrigation sprinkler valves (24 VDC, two wiring options)

Additional convenience features

• Irrigation systems: set an internal watering duration so the valve automatically shuts off even if the gateway/hub loses connectivity or power — prevents garden flooding and inflated water bills.
• Auto-off after a set period (e.g., lights left on in a basement/attic can be configured to shut off automatically after 8 hours), independent of gateway commands.
• Real-time energy monitoring of connected devices via your smart home app (gateway must support this feature).
• Associations let the Flush 2 Relay trigger — or be triggered by — other Z-Wave devices directly, without going through the gateway.

Advantages & Highlights

• One of the smallest Z-Wave switches in the world — fits in the smallest, most crowded flush-mount boxes
• Only Z-Wave switch offering an optional wired temperature sensor input (no battery to replace)
• 100% quality control; every unit has a unique serial/part number for fast support lookups via QR code
• Engineered and manufactured in the EU; CE, FCC, LVD, and EMC certified
• Saves and restores last on/off status after a power failure
• Supports advanced configuration parameters for expert users (gateway-dependent)

Package Contents

• Flush 2 Relay device
• Installation Manual

Available Frequencies / Ordering Codes

Installation

Safety Warnings

• Danger of electrocution! Installation requires a great degree of skill and may be performed only by a licensed, qualified electrician. Even when the device is off, voltage may still be present in its terminals.
• To prevent electrical shock and/or equipment damage, disconnect electrical power at the main fuse or circuit breaker before installation and maintenance. Even with the breaker off, some voltage may remain in the wires — confirm no voltage is present before proceeding.
• Take extra precautions to avoid accidentally turning on the device during installation.
• Connect the device exactly according to the diagram — improper wiring may be dangerous and result in equipment damage.
• Place the antenna as far as possible from metal elements as they may cause signal interference. Do not shorten the antenna.
• The service (S) button must NOT be used when the device is connected to a 110–240V power supply.
• Wago 221-413 splicing connectors for L and N connections must be used only when connected to 240 VAC.
• Durability: for resistive loads (light bulbs, etc.) and 4A current consumption per individual electrical device, the product's lifespan exceeds 70,000 toggles for each individual load.

Overload Protection

For loads other than resistive, pay attention to the value of cos φ and apply loads lower than the rated load if necessary. Max current for cos φ=0.4 is 3A at 250VAC, 3A at 24VDC (L/R=7ms). Max power limit is automatically enforced by software — if max power is exceeded for more than 5 seconds, the output turns off until the module is next restarted, and an "Over-load detected" event is sent to the gateway.

Adding the Device to a Z-Wave Network (Inclusion)

Automatic Inclusion

1. Enable add/remove mode on your Z-Wave gateway (hub)
2. Connect the device to the power supply (with the temperature sensor already connected, if used — sold separately)
3. Auto-inclusion is initiated within 5 seconds of connection and the device automatically enrolls in your network

Note: the device can be automatically added to a Z-Wave network during the first 2 minutes after being connected to power.

Manual Inclusion

1. Enable add/remove mode on your Z-Wave gateway (hub)
2. Connect the device to the power supply (with the temperature sensor already connected, if used)
3. Toggle the switch connected to the I1 terminal 3 times within 3 seconds (3 pushes of a push-button, or 6 presses of a toggle switch), or press and hold the S (Service) button for 2–6 seconds if powered by 24V SELV supply
4. A new multi-channel device will appear on your dashboard

Important: make sure the device is excluded from your network before connecting the temperature sensor. Switch off the power supply, connect the sensor, and re-include the device to your network.

Removing the Device (Exclusion)

1. Connect the device to the power supply and ensure it's within direct range of your Z-Wave gateway or handheld remote
2. Enable add/remove mode on your gateway
3. Toggle the I1 switch 3 times within 3 seconds, or hold the S (Service) button 2–6 seconds if on 24V SELV power
4. The device is excluded from the network, but custom configuration parameters are NOT erased

Factory Reset

1. Connect the device to the power supply
2. Within the first 60 seconds, toggle the I1 switch 5 times within 3 seconds, or hold the S (Service) button more than 6 seconds if on 24V SELV power

Resetting returns all custom parameters to default values and deletes the node ID. Use this reset procedure only when the main gateway (hub) is missing or otherwise inoperable.

Associations

Associations enable direct communication between the Flush 2 Relay and other devices on your Z-Wave network, without needing your primary gateway.

Root Device

• Group 1 — Lifeline (reserved for gateway communication), 1 node
• Group 2 — Basic on/off status change for Q1, up to 16 nodes
• Group 3 — Switch binary report for Q1, up to 16 nodes
• Group 4 — Power meter report for Q1, up to 16 nodes
• Group 5 — Basic on/off status change for Q2, up to 16 nodes
• Group 6 — Switch binary report for Q2, up to 16 nodes
• Group 7 — Power meter report for Q2, up to 16 nodes
• Group 8 — Multilevel sensor report (external temperature sensor), up to 16 nodes

Endpoint 1 (Wall Switch I1) / Endpoint 2 (Wall Switch I2)

Each endpoint has its own Lifeline group (0 nodes) plus Basic on/off, Switch binary report, and Power meter report groups (up to 16 nodes each) scoped to that channel's load.

Endpoint 3 (External Temperature Sensor)

Lifeline group (0 nodes) plus a Multilevel sensor report group (up to 16 nodes) for the optional temperature sensor.

Configuration Parameters (Key Highlights)

• Parameter 1 / 2 — In-wall switch type for Load 1 (Q1) / Load 2 (Q2): push-button momentary (0) or on/off toggle switch (1, default)
• Parameter 10 — ALL ON / ALL OFF functionality: default 255 (both active); options to disable ALL ON, ALL OFF, or both
• Parameters 11–14 — Auto ON/Auto OFF timers for Q1 and Q2 independently, 1–32535 seconds (or milliseconds, see Parameter 15); timer resets on any ON/OFF command
• Parameter 15 — Sets whether timers 11–14 use seconds (default) or milliseconds
• Parameter 30 — Restore on/off status after power failure: default saves and restores last state; can be set to always power up OFF
• Parameters 40 / 41 — Watt power consumption reporting threshold (% change) for Q1 / Q2, default 50%; power must change by at least 1W regardless of percentage set
• Parameters 42 / 43 — Watt power consumption reporting time interval for Q1 / Q2, 1–32535 seconds; disabled by default
• Parameters 63 / 64 — Choose Normally Closed (default, output 0V when off) or Normally Open (output 240V when off) for Q1 / Q2
• Parameter 110 — Temperature sensor offset adjustment (Celsius only)
• Parameter 120 — Temperature sensor reporting threshold, default 0.5°C

Technical Specifications

RC Snubber (for inductive/motor loads)

Suggested part: KEMET P409CE104M275AH470. RC snubber must be connected in parallel to the load.

Z-Wave Command Classes

Role Type: ZWAVEPLUS_INFO_REPORT_ROLE_TYPE_SLAVE_ALWAYS_ON | Generic Type: SWITCH_BINARY | Specific Type: POWER_SWITCH_BINARY

Supported command classes: ZWAVEPLUS_INFO_V2, VERSION_V2, MANUFACTURER_SPECIFIC_V2, DEVICE_RESET_LOCALLY_V1, POWERLEVEL_V1, BASIC_V1, SWITCH_ALL_V1, SWITCH_BINARY_V1, METER_V4, SENSOR_MULTILEVEL_V7, MULTI_CHANNEL_V4, ASSOCIATION_V2, MULTI_CHANNEL_ASSOCIATION_V3, ASSOCIATION_GRP_INFO_V2, CONFIGURATION_V1, MARK.

Endpoint 1 (Wall Switch I1) and Endpoint 2 (Wall Switch I2) each expose SWITCH_BINARY device class with ZWAVEPLUS_INFO_V2, VERSION_V2, SWITCH_BINARY_V1, BASIC_V1, SWITCH_ALL_V1, ASSOCIATION_V2, MULTI_CHANNEL_ASSOCIATION_V3, ASSOCIATION_GRP_INFO_V2, and METER_V4 command classes.

Regulatory / FCC Notice

This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules, providing reasonable protection against harmful interference in a residential installation.

Disposal

Do not dispose of electrical appliances as unsorted municipal waste — use separate collection facilities. Contact your local government for information on available collection systems. When replacing an old appliance with a new one, the retailer is legally obligated to take back the old appliance for disposal free of charge.

Manufacturer: GOAP d.o.o. Nova Gorica, Ulica Klementa Juga 007, 5250 Solkan, Slovenia. Model naming: ZMNHBXY — X, Y values define product version per region/frequency.