Heatmiser neoAir V3 Wireless Smart Thermostat User Manual

The Heatmiser neoAir V3 is a wireless smart thermostat from the Heatmiser neo Series. It is designed to send a wireless signal to a compatible receiver to control heating and, with selected receiver types, hot water. The thermostat can work in different modes depending on the connected receiver and system setup.

The official manual covers installation, battery setup, receiver pairing, neoHub pairing, thermostat controls, time clock mode, comfort levels, hot water boost, frost protection, optional settings, error codes, factory reset, remote sensor probe wiring, and support details.

Main Product Functions

The neoAir V3 can operate in three main modes:

Mode	Function
Mode 1	Thermostat mode
Mode 2	Timer / time clock mode
Mode 3	Thermostat with hot water timer

Mode selection should be completed before pairing the neoAir V3 with a receiver. The correct mode depends on the receiver type being used.

Compatible Receiver Types

The neoAir V3 works with several Heatmiser receivers and hubs, including:

• UH8-RF
• UH8-RF V2
• RF-Switch
• RF-Switch V2
• RF-Switch 16 Amp
• neoHub Mini OT
• neoHub Mini HW
• neoHub

The manual includes a compatibility table showing which receivers support thermostat mode, timer mode, and thermostat with hot water mode. Hot water switching is only available with certain receiver types.

Important Safety and Use Notes

Before using or installing the Heatmiser neoAir V3, keep these important notes in mind:

• The thermostat is designed to be surface mounted.
• Install it at eye level for easy use and accurate readings.
• Do not install it near a direct heat source.
• Do not press hard on the LCD screen.
• Do not use rechargeable batteries.
• Insert batteries with the correct polarity.
• Remove discharged batteries and dispose of them according to local rules.
• Wear protective gloves and eye protection if batteries have leaked.
• The neoAir V3 must not be used to control electric underfloor heating.

Parts and Controls

The Heatmiser neoAir V3 has a square wall-mounted body with a large LCD display and touch keys below the screen.

Main Controls

Control	Purpose
Left arrow	Scrolls through menu options or adjusts settings
Tick / confirm key	Confirms selections and opens selected menu items
Right arrow	Scrolls through menu options or adjusts settings
Down key	Reduces temperature, time, or setting values
Up key	Increases temperature, time, or setting values

Main Menu Options

The display menu may show options such as:

• Power
• Setup
• Clock
• Heating
• Timer
• Hold
• Holiday
• Edit
• Cancel

Available menu options depend on the selected mode.

LCD Display Icons and Indicators

In thermostat mode, the neoAir V3 display includes several useful icons.

Display Item	Meaning
Mesh symbol	Shows connection to neoHub, neoHub Mini HW, or neoHub Mini OT
Day indicator	Displays the current day
Frost symbol	Shows frost protection or standby mode
Flame symbol	Shows heating demand
Holiday icon	Shows holiday mode
Floor limit icon	Appears when the remote floor probe reaches the maximum floor limit
Floor/Room Temp	Shows active sensor mode
Set	Appears when changing schedule or set point
Program indicators	Show comfort level being edited
Key lock icon	Shows touch keys are locked
Battery icon	Shows batteries need replacing
Timer status	Shows timed output state
Temperature format	Shows °C or °F
Hold Left	Shows remaining hold time
Time/Day/Month/Year	Used when setting clock, calendar, or holiday period

Product Specifications

Specification	Detail
Product name	Heatmiser neoAir V3
Product type	Wireless smart thermostat
Series	neo Series
Mounting type	Surface mounted
Battery type	4 x AAA batteries
Rechargeable batteries	Not supported
Modes	Thermostat, Timer, Thermostat + Hot Water Timer
Wireless receiver control	Heating and selected hot water systems
Temperature format	°C or °F
Frost protection range	5°C to 17°C
Frost default	12°C
Switching differential	0.5°C, 1.0°C, 2.0°C, or 3.0°C
Output delay	00 to 15 minutes
Floor temperature limit	18°C to 45°C
Floor limit default	28°C
Program modes	Non-programmable, weekday/weekend, 7 day, 24 hour
Wireless frequencies	868 MHz and 2.4 GHz
Compliance	Directive 2014/53/EU

How to Install the Heatmiser neoAir V3

The neoAir V3 is surface mounted and does not need a flush wall box.

Installation Steps

1. Separate the front from the back plate
   Insert a small flat-head terminal driver into the slots on the bottom face of the thermostat.
2. Mark the wall fixing points
   Use the back plate as a template and mark two hole positions on the wall.
3. Drill and insert wall plugs
   Drill the marked positions and insert wall plugs.
4. Fix the back plate to the wall
   Screw the thermostat back plate securely onto the wall.
5. Clip the thermostat front back on
   Attach the front half of the thermostat to the mounted back plate.

Battery Installation

The neoAir V3 is supplied with 4 x AAA batteries.

How to Install the Batteries

1. Push and release the battery compartment door on the bottom face of the thermostat.
2. Insert the four AAA batteries into the battery holder.
3. Make sure each battery follows the correct + / – polarity.
4. Push the battery holder back into the thermostat until it is secure.

The thermostat displays a battery icon when the batteries need replacement. The manual warns not to use rechargeable batteries with this product.

Mode Select Instructions

Before pairing the neoAir V3, select the correct operating mode.

Available Modes

Mode	Description
Mode 1	Thermostat
Mode 2	Timer
Mode 3	Thermostat and hot water timer

How to Change Mode

1. Use the Left arrow to highlight the power icon on the menu.
2. Press and hold the tick key for 3 seconds.
3. When SETUP is highlighted, press and hold the tick key for 10 seconds until all icons appear.
4. The current mode appears in the lower-left corner.
5. Use the Left/Right arrows to change the mode.
6. Press the tick key once to confirm.

The thermostat will return to the main display for the selected mode.

Pairing with Receivers

The neoAir V3 sends a wireless signal to a receiver to switch heating or hot water on and off. Pairing steps differ depending on the receiver.

Pairing with UH8-RF Wiring Centre

For UH8-RF, the channel number is set using two rotary dials inside the wiring centre. Each UH8-RF should have a unique channel number.

Pairing Summary

1. Remove the cover from the UH8-RF.
2. Note the channel number set on the rotary dials.
3. On the neoAir, enter the setup menu.
4. Select P2.
5. Set the UH8-RF channel number.
6. Select the zone type:
   • rA = Radiators
   • UF = Underfloor heating
7. Set the zone number.
8. Confirm settings to exit the setup menu.

Pairing with UH8-RF V2

Pairing Steps

1. On the neoAir, enter the setup menu.
2. Select P1.
3. The display counts down from 99, showing pairing mode is active.
4. On the UH8-RF V2, press and hold the pairing button on the desired channel until the output LED flashes.
5. When the UH8-RF V2 detects the neoAir, the output light turns off.
6. Press the tick key on the neoAir to confirm pairing.

The manual notes that the neoAir V3 can be paired to multiple channels on the UH8-RF V2.

Pairing with RF-Switch and RF-Switch V2

RF-Switch Pairing

1. Put the neoAir into setup mode.
2. Select P1.
3. The neoAir starts counting down from 99.
4. On the RF-Switch, press and hold the CH1 button for 5 seconds.
5. The CH1 light flashes to show pairing mode.
6. When pairing completes, the CH1 light turns off.
7. Confirm pairing on the neoAir.

RF-Switch V2 Pairing

For RF-Switch V2, press and hold CH1 or CH2 for 5 seconds. The selected channel light flashes, then turns off after detecting the neoAir signal.

Pairing with RF-Switch 16 Amp

The RF-Switch 16 Amp should be used with the neoAir V3 in Mode 1.

Pairing Steps

1. Configure the neoAir in Mode 1.
2. Enter the neoAir setup menu.
3. Select P1.
4. The display counts down from 99.
5. On the RF-Switch 16 Amp, press and hold the pair button for 5 seconds.
6. The pair light flashes.
7. When the receiver detects the neoAir signal, the pair light turns off.
8. Confirm pairing on the neoAir.

Pairing with neoHub Mini OT/HW

neoHub Mini OT

For a single heating zone, pair the neoAir to CH1.
For a second heating zone, pair another neoAir to CH2.

neoHub Mini HW

For a single heating zone and hot water, configure the neoAir in Mode 3 and pair it to CH1. The neoAir automatically pairs to the hot water output at the same time.

Pairing Steps

1. On the neoHub Mini OT/HW, press and hold CH1 or CH2 for 6 seconds.
2. The zone light flashes green.
3. On the neoAir, enter the setup menu.
4. Select the hub pairing option.
5. The mesh symbol flashes on the display.
6. Open the neoApp and select Add neoHub Mini.
7. Follow the in-app instructions.
8. Once paired, the mesh symbol stays permanently displayed.

Pairing with neoHub and neoApp

To connect the neoAir V3 with a neoHub:

1. Connect the neoHub to the router using the Ethernet cable.
2. Connect the neoHub power supply.
3. Download the neoApp.
4. Register or sign in to the app.
5. Select Add neoHub in the app.
6. Follow the app instructions.
7. Add the neoAir V3 as a zone.
8. On the neoAir, enter setup mode and start hub pairing.
9. The mesh symbol flashes while pairing.
10. The app confirms when the zone is paired.

The manual notes that the neoHub only needs to be paired to the account once. Additional thermostats can be added from the app using Add Thermostat.

neoAir and Mesh Network Notes

The neoAir V3 cannot relay signals from one thermostat to another. To extend the wireless mesh network, the system needs a compatible repeater such as a neoPlug or Heatmiser Boost.

The manual also notes:

• neoPlug can act as a repeater when neoAir V3 is used with neoHub, UH8-RF, RF-Switch, or RF-Switch 16A.
• neoPlug is not compatible as a repeater when neoAir V3 is used with neoHub Mini HW or neoHub Mini OT.
• neoAir V3 can also communicate through wired mesh-capable neoStats.

Power On and Off

Turn Off the neoAir Display

1. Use the Left arrow to highlight the power icon.
2. Press and hold the tick key for 3 seconds.
3. The display shows the power symbol.
4. Temperature display and heating output turn off.

Turn the neoAir V3 Back On

Press the tick key once.

Setting the Clock

Clock Setup Steps

1. Use the Left/Right arrows to highlight the power icon.
2. Press and hold the tick key to turn off the display.
3. Use the Right arrow to select CLOCK.
4. Press the tick key to confirm.
5. Use Up/Down to set the year.
6. Confirm and repeat for month, day, and time.
7. Confirm the new clock settings.
8. Scroll back to the power icon and press the tick key to turn the display on.

Comfort Levels and Programming

The neoAir V3 supports the following program modes:

Program Mode	Description
Weekday/Weekend	Monday–Friday and Saturday–Sunday schedules
7 Day	Each day programmed separately
24 Hour	Same schedule for every day
Non-programmable	Manual temperature control only

Default Comfort Levels

Period	Time	Temperature
Wake	07:00	21°C
Leave	09:00	16°C
Return	16:00	21°C
Sleep	22:00	16°C

Unused levels can be disabled by changing the time to –:–.

How to Edit Comfort Levels

1. Use the Left/Right arrows to scroll to EDIT.
2. Select the day or period of the week.
3. Select the comfort level, such as Wake, Leave, Return, or Sleep.
4. Press the tick key to edit.
5. Set the hour using Up/Down.
6. Confirm.
7. Set the minutes.
8. Confirm.
9. Set the temperature.
10. Confirm.
11. Repeat for all remaining comfort levels.
12. Select DONE and confirm.

Temperature Control

To adjust the set temperature:

1. Press the Up or Down key.
2. The display shows SET and the desired temperature.
3. Use Up/Down to adjust the set value.
4. Press the tick key to confirm.

In programmable mode, this manual temperature change stays active only until the next programmed comfort level.

Temperature Hold

Temperature Hold allows users to override the current heating program for a set time.

Mode 1: Heating Only

1. Scroll to HOLD.
2. Press the tick key.
3. Set the hold period using Up/Down.
4. Confirm.
5. Set the hold temperature using Up/Down.
6. Confirm.

The display shows HOLD LEFT and the remaining hold time. The thermostat returns to the normal program when the hold period ends.

Mode 3: Heating and Hot Water

In Mode 3, select HOLD, choose Heating, then set the hold period and temperature. To cancel, open HOLD again, choose Heating, then select CANCEL.

Hot Water Boost

Hot Water Boost is available in Mode 3: Heating and Hot Water.

How to Boost Hot Water

1. Scroll to HOLD.
2. Press the tick key.
3. When Heating is highlighted, use the Left/Right keys to select Timer.
4. Press the tick key.
5. Use Up/Down to set the boost duration, such as 02:00 hours.
6. Press the tick key to confirm.

To cancel the timer boost, go back to HOLD, select Timer, then choose Cancel.

Locking and Unlocking the neoAir V3

The neoAir V3 includes a touch key lock with a four-digit PIN.

How to Lock the Thermostat

1. Scroll to HOLD.
2. Press and hold the tick key for 10 seconds.
3. The display shows 00:00.
4. Use Up/Down to enter the first two digits.
5. Confirm.
6. Use Up/Down to enter the second two digits.
7. Confirm.
8. The lock icon appears on the main display.

How to Unlock the Thermostat

1. Press the tick key once.
2. Enter the same four-digit PIN.
3. Confirm the first two digits and second two digits.
4. The keys unlock and the thermostat returns to the main display.

Frost Protection and Standby Mode

In Frost Mode, the neoAir V3 only turns heating on if the room temperature drops below the frost temperature setting. The default frost temperature is 12°C.

Enable Frost Protection

1. Highlight the power icon.
2. Press the tick key once.
3. The frost symbol appears.

Disable Frost Protection

Press the tick key again while the power icon is highlighted. The frost symbol disappears.

Standby Mode

In Frost Mode, remove the set temperature and set it to –. This means the thermostat will not call for heat while the frost icon is displayed.

Holiday Mode

Holiday mode changes system behavior until a selected date and time.

In thermostat mode:

• The thermostat reduces the set temperature to the frost protection temperature.
• It returns to the normal program at the selected date and time.

In time clock mode:

• The timed output stays OFF.
• The normal program resumes at the configured return time.

How to Set Holiday Mode

1. Scroll to HOLIDAY.
2. Press the tick key.
3. Set the year using Up/Down.
4. Confirm.
5. Set the month, date, and time.
6. Confirm each step.

The holiday period starts immediately and ends at the configured time and date.

Optional Features in Thermostat Mode

The neoAir V3 includes optional settings for pairing, temperature control, sensor behavior, program mode, and safety functions.

Feature	Description	Setting Options
P3	Failsafe	Disabled / Enabled
P2	Pairing to UH8-RF	Receiver address, zone number, zone type
P1	Pairing to RF-Switch and UH8-RF V2	Countdown pairing
01	Pairing to hub	Adds zone to neoHub or neoHub Mini
02	Switching differential	0.5°C, 1.0°C, 2.0°C, 3.0°C
03	Frost protection temperature	5°C–17°C or disabled
04	Output delay	00–15 minutes
05	Temperature up/down limit	00°C–10°C
06	Sensor selection	Built-in, remote air, remote floor, built-in + remote floor
07	Floor temperature limit	18°C–45°C
08	Optimum start	00–05 hours
09	Rate of change	Minutes to raise temperature by 1°C
10	Cool enable	Used with compatible heat pump systems
11	Not used	Not used on this model
12	Program mode	Non-programmable, weekday/weekend, 7 day, 24 hour
13	Temperature format	°C or °F

How to Adjust Optional Settings

1. Highlight the power icon.
2. Press and hold the tick key for 3 seconds.
3. When SETUP is highlighted, press the tick key once.
4. Use Up/Down to select the feature.
5. Use Left/Right to adjust the setting.
6. Press the tick key to confirm and exit.

Re-Calibrating the Thermostat

Re-calibration adjusts the displayed temperature reading.

Re-Calibration Steps

1. Highlight the power icon.
2. Press and hold the tick key for 3 seconds to turn off the display.
3. Press and hold the tick key and Down key together for 10 seconds.
4. The current temperature appears.
5. Use Up/Down to adjust the value.
6. Press the tick key to confirm.
7. Turn the thermostat back on.

The thermostat returns to the main display using the adjusted temperature reading.

Error Codes and Troubleshooting

The manual lists two thermostat error codes.

Error Code	Meaning	What to Check
E0	Internal sensor fault	Built-in sensor may have developed a fault
E2	Remote probe issue	Probe may be disconnected, wired incorrectly, or faulty

Common Troubleshooting Guide

Problem	Possible Cause	Recommended Action
Battery icon appears	Batteries are low	Replace with 4 x AAA batteries
Thermostat does not respond	Touch keys may be locked	Enter the four-digit PIN to unlock
Heating does not turn on	Frost/standby mode may be active	Check frost icon and set temperature
Pairing fails	Wrong receiver mode or pairing mode not active	Check mode compatibility and repeat pairing
Mesh symbol flashes	Hub pairing is not complete	Complete pairing in the neoApp
Remote probe error appears	Probe wiring or probe fault	Check remote probe wiring and connection
Hot water option missing	Wrong receiver or mode selected	Use a compatible receiver and Mode 3
Temperature reading seems wrong	Calibration may be needed	Use the re-calibration steps

Factory Reset

A factory reset erases pairing and programming settings. The thermostat must be paired again after reset.

Factory Reset Steps

1. Highlight the power icon.
2. Press and hold the tick key for 3 seconds.
3. When SETUP is highlighted, press and hold the tick key for 10 seconds until all icons appear.
4. Select Mode 1, 2, or 3 using the Left/Right keys.
5. Press the tick key to confirm.
6. Remove the batteries.
7. Reinsert the batteries to complete the reset.

Remote Sensor Probe Wiring

The manual includes a dedicated section for remote sensor probe wiring. The remote probe connects to the thermostat for remote air or floor temperature sensing. If the probe is missing, wired incorrectly, or faulty, the thermostat may show an E2 error.

Time Clock Mode Overview

In Mode 2 – Time Clock, the neoAir V3 controls a timed output instead of temperature-based heating.

The display includes:

• Communication symbol
• Day indicator
• Holiday indicator
• Set icon
• Program indicator
• Main menu
• Keypad lock icon
• Battery icon
• Timer status
• Hold left indicator
• Time/date display

Setting Switching Times in Time Clock Mode

1. Scroll to EDIT.
2. Press the tick key.
3. Select the day or period of the week.
4. Confirm.
5. Select switching period 1.
6. Set the ON time hours and minutes.
7. Set the OFF time hours and minutes.
8. Repeat for the remaining switching periods.
9. Set unused levels to –:–.
10. Select DONE and confirm.

Timer Override

Timer Override turns the timed output on for a selected duration.

How to Use Timer Override

1. Set the override duration using Up/Down.
2. Press the tick key to confirm.
3. The display shows HOLD LEFT and the remaining time.

To cancel the override, press the Down arrow once, select Cancel, and confirm.

Time Clock Optional Features

Feature	Description	Setting
P3	Failsafe	Disabled / Enabled
P2	Pairing to UH8-RF	Receiver address, zone number, zone type
P1	Pairing to RF-Switch, RF-Switch 16A, and UH8-RF V2	Countdown pairing
01	Pairing to hub	Used to add the time clock to neoHub
02	Program mode	Weekday/weekend, 7 day, or 24 hour

Support and Contact

Heatmiser provides support, FAQs, PDFs, videos, and technical specifications through its support channels.

Heatmiser UK Ltd

Address:
Heatmiser UK Ltd
Units 1-5 Hurstwood Court, Mercer Way
Shadsworth Business Park, Blackburn
Lancashire, BB1 2QU
United Kingdom

Support phone: +44 (0)1254 669090
Website: www.heatmiser.com

The manual also includes a statement that Heatmiser UK Ltd declares the radio equipment is compliant with Directive 2014/53/EU. RF frequency details listed are 868 MHz 12.43 dBm and 2.4 GHz 3.54 dBm.

Read Official User Manual