Nu-Heat OneZone neoAir V2 User manual

1
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UNDERFLOOR
HEATING
SOLAR
THERMAL
HEAT
PUMPS
OneZone®
electrical installation
manual & setup guide
for neoAir V2 control
© Nu-Heat 2019
v7

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working with you
your project
before,
& after
during
Nu-Heat
Know-How

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Contents
Introduction 04
Electrical components 05
Planning the installation 06
System control options 07
neoAir and RF Switch connections 08
Systems without direct control of the boiler
Schematic 09
Wiring diagram 09
Systems with direct control of the boiler
Schematic – combi-boiler systems 10
Wiring diagram – combi-boiler systems 10
Schematic – S-Plan systems 11
Wiring diagram – S-Plan systems 11
Schematic – W-Plan systems 12
Wiring diagram – W-Plan systems 12
Schematic – Y-Plan systems 13
Wiring diagram – Y-Plan systems 13
Operation 14
System start up 14
Settings for underfloor heating 15
Installing neoAir 15
Thermostat operation 17
Optional control from a SmartPhone (systems with neoHub) 23
Energy eciency (ErP) 23

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System Ref:
Please read this manual fully before fitting your Nu-Heat OneZone®floor heating
system. It assumes a basic knowledge of electrical wiring, and of common terms
used.
Attention to the advice given in this manual will help to ensure a trouble-free and
eective installation. The requirements of the relevant British Standards and other
Regulations should always be met.
In line with the company policy of product development, Nu-Heat reserves the
right to supply dierent components to those shown.
Please ensure that this manual remains with the homeowner when installation
is complete. It is a companion manual to the OneZone®Installation Manual, which
shows details of the plumbing components and floor construction.
This manual is the copyright of Nu-Heat. All rights reserved. No part of this
publication may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means electronic, mechanical, photocopying, recording
or otherwise without prior written permission of Nu-Heat.
Electrical installation manual –
Nu-Heat OneZone®warm water
underfloor heating with neoAir control

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Electrical components
neoAir wireless thermostat
NeoAir is a wireless, battery powered
programmable thermostat that is
capable of upgrade to smart control
(see neoHub below). The room/zone is
individually programmed for
temperature and times of use. This can
be independent control or in
conjunction with an existing radiator
system. For screed and floating floor
systems, allowance should be made for
the longer warm-up time of underfloor
heating. With LoPro®Max systems
response time is similar to that of a
traditional radiator system.
In order to comply with wiring
regulations bathroom zones must have
the thermostat fitted outside the room,
i.e. next to the door at light-switch
height.
RF Switch
This is the wireless base receiver, to be
fitted near to the OneZone®wiring
centre.
OneZone®wiring centre
The wiring centre can either be fitted
beside or remotely from the heating
components. It can be wired to suit
individual system requirements.
neoHub
The neoHub connects to a home
broadband router and wirelessly to
the neoAirs in a home. Simply plug into
a router, connect to your Nu-Heat
neoApp on an Android or iOS device
and take control of the underfloor
heating from anywhere.
neoPlug
neoPlug is a simple smart plug that
(with neoHub) enables on/o control
of a household appliance. It also acts as
a signal booster between the neoAir
and the RF Switch.
OPTIONAL COMPONENTS

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Planning the installation
1 Read this Installation Manual
carefully.
2Decide which control method is to
be used for the OneZone®under-
floor heating system (see opposite).
3Agree the position for the wiring
centre and thermostat with the
homeowner.
41st fix all electrical equipment as per
the chosen method of control.
5After the underfloor heating
pipework is installed, 2nd fix the
electrical components.
6Commission the underfloor
heating and test its operation.
7Explain the operation of the
OneZone®underfloor heating
system to the homeowner and
hand over this User Guide
for reference.

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System control options
There are two ways to connect the system:
B – Connection is at the boiler
This arrangement gives optimum performance. It allows time and
temperature settings for the OneZone®underfloor heating system to be
independent of other areas of the home. It also enables use of a set-back
temperature facility to reduce warm-up times. Pipework is connected back
to the boiler side of any control valves.
What type of heating system do you have?
Combination boiler
Refer to page 10 for wiring details.
S Plan
The system has two 2-port zone
valves, one controlling the radiator
circuit and the other controlling
the cylinder. Refer to page 11 for
wiring details.
Boiler & cylinder
What type of system
control do you have?
W or Y Plan
The system has a 3-port zone valve
controlling both the cylinder and
radiator circuits. This system type
requires an additional 2-port zone
valve to be fitted. Refer to pages
12–13 for wiring details.
Don’t know
Please consult your heating
engineer or electrician.
Please consult your heating
engineer or electrician.
Don’t know
OR
A – Connection is to the radiator circuit
Pipework is connected directly to the radiator circuit meaning that time
settings will correspond to the radiator circuit and set-back operation is
not possible. With screed and floating floor constructions, heating operation
times for the whole system may have to be altered to allow for the
longer warm-up time of underfloor heating compared to radiators. With
LoPro®Max systems response time is similar to that of a traditional radiator
system.
Refer to pages 9 for wiring details.

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NEOAIR TERMINAL CONNECTIONS RF SWITCH TERMINAL CONNECTIONS
Remote
sensor
neoAir & RF Switch connections
REMOTE TEMPERATURE SENSORS
All OneZone®systems are supplied with a remote floor temperature sensor for
use with sensitive floor coverings such as engineered hardwood, vinyls (including
Amtico) and linoleums.
Note applying to all wiring diagrams:
All new electrical works must comply with IEE Regulations and health and safety
requirements, and be tested by a competent person before connection to mains
voltage.

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SCHEMATIC
OneZone®
wiring centre
RF Switch5A fused spur
Radiator circuit Distributor assemblies and
Underfloor heating circuit
Pump & blending
valve assembly
Dierential bypass valve
WIRING DIAGRAM
1
2
3
4
RF Switch (see diagram on p.8 for terminal connections)
5A switched fused spur
Zone actuator
Underfloor heating pump
1
2
3
4
KEY
SL Switched Live
LLive NNeutral
EEarth
LS Live (source) LR Live (return)
Live voltage marker sleeve
Notes: Colour of wires may vary from
those shown.
Earth where required.
KEY
Pre-wired 2-core flex
2-core + Earth
3-core + Earth
4-core + Earth
Systems without direct control
of the boiler
neoAir
Notes:
a The Nu-Heat underfloor heating programmable thermostat must be set so that
heating periods coincide with the availability of hot water in the radiator circuit.
b Components shown in outline are not supplied.
c A 2-port zone valve is not needed on the UFH circuit.

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Systems with direct control
of the boiler
COMBINATION BOILERS WITH MAINS OR LOWVOLTAGE SWITCHING
OneZone®
wiring centre
Existing radiator room
thermostat and/or timeclock
RF switch5A fused spur neoAir
Radiator circuit
Combi-boiler
and pump Distributor assemblies and
Underfloor heating circuit
Pump & blending
valve assembly
Dierential bypass valve
Additional
2-port zone valve
SCHEMATIC
WIRING DIAGRAM
1
2
5
3
6
4
RF Switch (see diagram on p.8 for terminal
connections)
Radiator room thermostat and/or
timeclock – note: number of cable cores
depends on the thermostat used – see
manufacturer’s instructions.
5A switched fused spur
Boiler and boiler pump
Zone actuator
Underfloor heating pump
Additional 2-port zone valve
1
2 5
3
6
4
7
7
KEY
SL Switched Live
LLive NNeutral
EEarth
LS Live (source) LR Live (return)
COM Common NO Normally open
Live voltage marker sleeve
Notes: Colour of wires may vary from
those shown. Earth where required.
KEY
Pre-wired 2-core flex
2-core + Earth
3-core + Earth
4-core + Earth
Boiler
Refer to
note d
Notes:
a Refer to boiler manufacturer’s instructions for connection details and system
recommendations.
b Ensure radiator room thermostat (if used) is suitable for 230v AC switching.
c Components shown in outline are not supplied.
d A 2-port zone valve is not needed on the UFH circuit.
e Low-voltage switched boilers: Ls and LR must NEVER be connected to mains voltage.

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SPLAN 2 X 2PORT CONTROL VALVES
SCHEMATIC Existing wiring centre RF Switch neoStat
Cylinder Boiler
Distributor
assemblies
&
Underfloor
heating
circuit
2-port
zone valve 2-port
zone valve
Pump & blending
valve assembly
Dierential bypass valve
WIRING DIAGRAM
1
2
3
4
RF switch (see diagram on p.8 for terminal connections)
Boiler and boiler pump
Zone actuator
Underfloor heating pump
1
2
3
4KEY
SL Switched Live
LLive NNeutral
EEarth
LS Live (source) LR Live (return)
Live voltage marker sleeve
Notes: Colour of wires may vary from
those shown.
Earth where required.
KEY
Pre-wired 2-core flex
2-core + Earth
3-core + Earth
4-core + Earth
OneZone®
wiring centre
Boiler
Refer to
note c
Notes:
a The existing connection strip shown should be wired according to Honeywell
or Danfoss standard wiring schematics for S-plan (two-port valve), with the
addition of the connections detailed here.
b Components shown in outline are not supplied.
c For low-voltage switched boilers: Ls and LR must NEVER be connected to
mains voltage.
d A 2-port zone valve is not needed on the UFH circuit.

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WPLAN 3PORT CONTROL VALVES 230V AC SWITCHING
SCHEMATIC
WIRING DIAGRAM
1
2
5
6
3
RF switch (see diagram on p.8 for
terminal specifics)..
W-Plan wiring centre
Additional 2-port zone valve
Boiler and boiler pump
Zone actuator
Underfloor heating pump
1
2
4
5
6
3
4
Existing wiring centre RF Switch neoStat
Cylinder Boiler
Distributor
assemblies
&
Underfloor
heating
circuit
Existing
3-port
zone valve
Additional
2-port zone valve
Boiler pump
Pump & blending
valve assembly
Dierential bypass valve
Note: To ensure there is no flow through the 3-port valve when both the radiator
and cylinder system are o but the underfloor heating is on, an additional 2-port
control valve must be fitted as shown.
Break connection from wiring
centre terminal 7 to boiler
Boiler
KEY
SL Switched Live
LLive NNeutral
EEarth
LS Live (source) LR Live (return)
Live voltage marker sleeve
Notes: Colour of wires may vary from
those shown.
Earth where required.
KEY
Pre-wired 2-core flex
2-core + Earth
3-core + Earth
4-core + Earth
OneZone®
wiring centre
Do not
alter
existing
W-Plan
wiring
Notes:
a The existing connection strip shown should
be wired according to Honeywell or Danfoss
standard wiring schematics for W-plan
(three-port valve), with the addition of the
connections detailed here.
b A 2-port zone valve is not needed on the UFH
circuit.
c Ensure that the connection from Terminal 7
to the boiler is broken.
d Components shown in outline are not
supplied.

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YPLAN 3PORT CONTROL VALVES 230V AC SWITCHING
SCHEMATIC
WIRING DIAGRAM
1
2
5
6
3
RF switch (see diagram on p.8
for terminal connections)
Y-Plan wiring centre
Additional 2-port zone valve
Boiler and boiler pump
Zone actuator
Underfloor heating pump
1
2
4
5
6
3
4
Existing wiring centre RF Switch neoStat
Cylinder Boiler
Distributor
assemblies
&
Underfloor
heating
circuit
Existing
3-port
zone valve
Additional
2-port zone valve
Boiler pump
Pump & blending
valve assembly
Dierential bypass valve
Note: To ensure there is no flow through the 3-port valve when both the radiator
and cylinder system are o but the underfloor heating is on, an additional 2-port
control valve must be fitted as shown.
Break connection from wiring centre terminal 8 to boiler
Boiler
KEY
SL Switched Live
LLive NNeutral
EEarth
LS Live (source) LR Live (return)
Live voltage marker sleeve
Notes: Colour of wires may vary from
those shown.
Earth where required.
KEY
Pre-wired 2-core flex
2-core + Earth
3-core + Earth
4-core + Earth
OneZone®
wiring centre
Do not
alter
existing
Y-Plan
wiring
Notes:
a The existing connection strip shown should
be wired according to Honeywell or Danfoss
standard wiring schematics for Y-plan
(three-port valve), with the addition of the
connections detailed here.
b A 2-port zone valve is not needed on the UFH
circuit.
c Ensure that the connection from Terminal 8
to the boiler is broken.
d Components shown in outline are not
supplied.

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System startup
Underfloor heating
Locate the main components of your
installation: the boiler, hot water
cylinder, OneZone®pump and
manifold assembly, thermostat and
OneZone®wiring box.
Electricity supply
Ensure that the electrical installation is
complete and that the heating system
is turned on. The location of the main
supply ON/OFF switch may vary but is
often positioned next to the boiler.
There may be an additional switch
located at the OneZone®wiring box
which also needs to be on.
Once your system has been commissioned it should be fully operational. To initially
check that your system is turned on and working please follow these simple steps:
Operation
neoAir combines the functions of a room
thermostat and programmer.
A programmer allows you to set ON and OFF periods to suit your own lifestyle.
A room thermostat works by sensing the air temperature, switching on the heating
when the air temperature falls below the thermostat setting, and switching it o
once this set temperature has been reached.
A programmable room thermostat lets you choose what times you want the
heating to be on, and what temperature it should reach while it is on. It will allow
you to select dierent temperatures in your home at dierent times of the day (and
days of the week) to meet your particular needs and preferences.
Setting a programmable room thermostat to a higher temperature will not make
the room heat up any faster. How quickly the room heats up depends on the
design and size of the heating system.
Similarly reducing the temperature setting does not aect how quickly the room
cools down. Setting a programmable room thermostat to a lower temperature will
result in the room being controlled at a lower temperature, and saves energy.
The way to set and use your programmable room thermostat is to find the lowest
temperature settings that you are comfortable with at the dierent times you have
chosen, and then leave it alone to do its job.
The best way to do this is to set the room thermostat to a low temperature – say
18°C and then turn it up by 1°C each day until you are comfortable with the
temperature.
You won’t have to adjust the thermostat further. Any adjustment above this setting
will waste energy and cost you more money.
You are able to temporarily adjust the heating program by overriding or using the
temperature hold feature. These features are explained further on pages 18–19 of
this manual.

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Settings for underfloor heating
UNDERFLOOR HEATING
Consideration should be given to the
floor construction and floor finish used
in the room with OneZone, as these
factors will aect the time the system
will take to achieve comfort conditions.
Note that systems without direct boiler
control cannot operate at times when
the radiator circuit is o.
The temperature chosen as the setback
temperature will depend upon the
situation:
•For new build properties this will
generally be 4-6°C lower than the
comfort setting, although again, this
can be experimented with.
•Renovated properties with
LoPro®Max may work best with
a lower setback temperature, in
order that the heating remains o
outside of the times at which the
comfort temperature is selected.
•Less thermally responsive floors, in
particular screed floors greater than
65mm thick, will achieve comfort
temperatures more quickly when
the setback temperature is closer
to the comfort temperature.
Installing neoAir
INSTALLATION PROCEDURE
Programmable room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains
or blocked by furniture. Nearby electric fires, televisions, wall or table lamps may also prevent the thermostat from working properly.
Do
•Mount the neoAir at eye level.
•Read the instructions fully so you get the best from the
product.
Don’t
•Do not install near to a direct heat source as this will
aect functionality.
•Do not push hard on the LCD screen as this may cause
irreparable damage.
This wireless thermostat is designed to be surface mounted.
1 Carefully separate the front half of
the thermostat from the back plate
by placing a small flat head terminal
driver into the slots on the bottom
face of the thermostat.
2Mark 2 hole positions on the wall
using the back plate as a positioning
template.
Drill at the marked positions and
insert a wall plug into each hole.
3Screw the thermostat back plate
securely on the wall.
4Clip the front of the thermostat
back onto the thermostat back plate.
5Optional remote sensor connection.

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PAIRING WITH THE RF SWITCH
At the thermostat:
1 Use the < / > keys to scroll to O
I
. Press and hold 3for 3 seconds. SETUP will be
highlighted, now press 3
2The display will now show 01 in the top right hand corner.
3Press the 6once. The display will now show P1.
4Press 3once to start 99 second countdown.
5During the countdown press and hold the BOILER pairing button on the
RF Switch for 5 seconds.
The Boiler LED on the RF-Switch will flash to indicate it’s in pairing mode. Once
paired the LED will stop flashing.
Wireless communications coverage
Where building size or construction results in inadequate wireless coverage, this
can be extended by use of a neoPlug. (Available from Nu-Heat)
FITTING AND REPLACING THE BATTERIES
Batteries will need to be replaced occasionally to ensure the thermostat operates correctly.
The thermostat will inform you when
the batteries need to be replaced by
displaying the battery icon on screen.
To access the battery holder, push and
release the compartment door located
on the bottom face of the thermostat.
4 x AAA batteries have been supplied
with this thermostat.
Do not use rechargeable batteries with
this product!
Insert the batteries in the empty battery
holder, ensuring that each battery is
orientated for the correct polarity + / -.
Push the battery holder back inside
the thermostat until it is secured in its
closed position.
Battery icon flashes

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Thermostat operation
*SET = Displayed when changes are being made to the program schedule or
current set point.
ERROR CODES
When used as a thermostat the screen will display an error code if a fault is
detected.
E0 = The internal sensor has developed a fault.
E2 = The remote probe has not been connected / has not been wired
correctly / is faulty.
Comms symbol
Day
Frost protection
Flame symbol
Holiday
Floor limit
Floor/room temp
Set*
Programme indicator
(6 level mode)
Programme indicator
(4 level mode)
Main menu
Key lock indicator
Battery indicator
Temperature (current)
Timer status
Temperature format
Hold left
Time/Day/Month/Year
1
1
3
3
6
7
7
8
8
9
10
9
17
17
16
16
15
15
14
14
13
13
12
12
11
11
4
4
5
5
6
2
2
10
18
18

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TEMPERATURE DISPLAY
The neoAir can be configured for dierent sensor options such as remote air
sensor or floor sensor, see pages 21-22. The display will clearly indicate which
sensor is
being used by showing either ROOM TEMP or FLOOR TEMP before the actual
temperature value.
To view the current floor temperature, press and hold the <and >arrow keys
for 5 seconds, the floor temperature will then be displayed.
SETTING THE CLOCK
To set the clock, follow these steps.
1 Use the < / > keys to scroll to O
I
. Press and hold 3for 3 seconds
2 Use the < / > keys to scroll to CLOCK. Press 3to confirm selection
3 Use the 6/5keys to set the year
4 Press 3to confirm selection
5 Repeat steps to set month, date and time
6 Press 3to confirm selection
7 Use 6key to select O
I
8 Press 3to confirm selection and return to the main display
The neoAir oers three program
mode options: Weekday/Weekend
programming, 7 Day programming and
24 Hour programming. There is also
the option to use the thermostat as
a Non-Programmable thermostat.
To change program mode, see Optional
Features on pages 21-22.
When neoHub is used the program
mode for the system is configured by
using the neoApp.
The thermostat is supplied with comfort
levels already programmed, but these
can be changed easily. The default
times and temperature settings are;
07:00 / 21˚C (wake)
09:00 / 16˚C (leave the house)
16:00 / 21˚C (return home)
22:00 / 16˚C (sleep)
To program the comfort levels, use the
< / > keys to scroll to EDIT
1Press 3to confirm selection
2Use the < / > keys to select day /
period of week
(the selection will flash).
3Press 3to confirm selection
4WAKE will flash and current time
and temperature setting will be
shown.
5Press 3to alter wake settings
6Use the 6/5keys to set the hours
7Press 3to confirm
8Use the 6/5keys to set the
minutes
9Press 3to confirm
10 Use the 6/5keys to set the
temperature
11 Press 3to confirm the settings
12 Press the >arrow key
13 LEAVE will flash and current settings
will be displayed.
14 Press 3to alter leave settings
15 Repeat these steps to set all comfort
levels.
16 For any unused periods set time to
--:--
17 Use the < / > keys to scroll to done
and press 3
SETTING THE HEATING PERIODS AND TEMPERATURES

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TEMPERATURE CONTROL
1The 6/5allow you to adjust the set temperature. When you press either key,
you will see the word SET and the desired temperature value. Use the 6/5
keys to adjust the set value.
2Press 3to confirm settings and return to the main display.
Note: This new temperature is maintained only until the next programmed comfort
level. At this time, the thermostat will revert back to the programmed levels.
TEMPERATURE HOLD
The temperature hold function allows you to manually override the current
operating program and set a dierent temperature for a desired period.
1 Use the < / > keys to scroll to HOLD
2 Press 3to confirm selection
3 Use the 6/5keys to set the desired Hold period
4 Press 3to confirm selection
5 Use the 6/5keys to set the desired Hold temperature
6 Press 3to confirm selection
You will see the HOLD LEFT indication is displayed on screen. The time will
countdown the set duration and then revert to the normal program.
To cancel a temperature hold, select HOLD on the main menu, press 3 key, then
press 3again while CANCEL is highlighted.
LOCKING THE NEOAIR
The thermostat has a keypad lock facility. To activate the lock follow these steps:
1Use the < / > keys to scroll to HOLD & press 3for 10 seconds.
2 The display will show 00:00 and you will need to set a four digit pin number.
3 Use the 6/5keys to enter the first two digits
4 Press 3to confirm
5 Use the 6/5keys to enter the second two digits
6 Press 3to confirm
The display will return to the main screen and display the keypad lock indicator Ï
Note: The keypad lock indicator is only displayed when the lock is active.
UNLOCKING THE NEOAIR
To unlock the neoAir press 3once. The display will show 00:00 and you will need
to enter the four digit pin number you set previously.
1 Use the 6/5and 3keys to enter the first two digits
2 Use the 6/5and 3keys to enter the second two digits
The display will unlock and return to the main screen.
FROST MODE
1 Use the < / > keys to scroll to the O
I
icon. The FROST icon will toggle
ON/OFF each time 3is pressed.
In this mode, the neoAir will display the frost icon and will only turn the heating ON
should the room temperature drop below the set frost temperature
(see pages 21–22).
If the heating is turned ON whilst in frost mode, the flame symbol will be displayed.
To cancel the frost protect mode, navigate to the POWER button again and press 3.

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POWER ON/OFF
The heating is indicated ON when the flame icon is displayed. When the flame icon
is absent, there is no requirement for heating to achieve the set temperature but
the neoAir remains active.
1To turn the neoAir o completely, scroll to the O
I
icon and hold the 3key for 3
seconds until the SETUP/CLOCK menu is displayed.
Wait for the display to go blank; the O
I
icon is still visible.
The display and heating output will be turned OFF. To turn the thermostat back ON,
press the 3key once.
HOLIDAY
In thermostat mode, the HOLIDAY function reduces the set temperature in your
home to the frost protection temperature setting (see page 19).
In time clock mode, the holiday function maintains the timed output as OFF. The
thermostat will maintain this setting for the duration of the holiday and will then
automatically return to the program mode on your return.
To set date and time for a holiday period to end, use the steps below:
1Use the < / > keys to scroll to HOLIDAY and press 3
2Using the 6/5keys to set the year and press 3
Use the 6/5keys to set the month and press 3
4 Repeat the steps for date and time
5Press 3 to confirm selection
Note: The holiday period will start immediately and will return to the normal
program at the time and date set.
To cancel, Use the < / > keys to select HOLIDAY, press 3 , CANCEL will be
highlighted, press 3 to cancel.