Installation guide - wiring & plumbing

1

General Guide

The following guide illustrates how Wundafloor warm water underfloor heating systems can be coupled together

with the majority of central heating plumbing and control systems.

The majority of modern central heating systems make use of motorised valves, often called Zone valves, to divide

different heating systems and hot water generation ie. Radiators, Under Floor Heating and Hot water cylinder.

Systems using combination boilers will also need zone valves if separate systems of heating require different times

and temperatures.

Quite often ground and first floors are controlled separately as they may have different uses. The zone valve acts

like a relay, meaning any system can call the boiler/ heat source without other areas being activated.

If the underfloor system is being encorporated alongside a radiator system it is even more important that these

areas are controlled independently as ‘heat up’ and ‘cooling off’ times are different. We recommend the ‘S’ plan

layout is adopted as this allows for more variety in zoning, and should be very familiar to qualified plumber/

electricians. The schematics show typical S-plan heating systems with under floor heating encorporated.

NOTE:An Auto By-Pass valve (ABV) should be incorporated in all systems.

NOTE:If a Heat pump manifold has been supplied then there will be no pump on the manifold. Therefore the relay on

the H-Box wiring centre is used to switch on a shunt pump which will send primary water from a

buffer tank or the heatpump itself to the manifolds.

Wundafloor does not supply:• ‘S’ plan wiring centre

• Cylinder thermostat

• Hot water time clock

• Auto bypass valve

Motorised / Zone valves and Pipe stats are available if requested.

Plumbing and Wiring SchematicsSection A : pg 2 - 4System Boiler with hot water cylinder, radiators & UFH1a) Plumbing Schematic

2a) Multi Zone Wiring Schematic

3a) Single Zone Wiring Schematic

Section B : pg 5 - 7Combination Boiler with radiators & UFH1b) Plumbing Schematic

2b) Multi Zone Wiring Schematic

3b) Single Zone Wiring Schematic

Section C : pg 8 - 10Adding Single Zone kit to exisiting radiator system1c) Plumbing Schematic

2c) Wiring Schematic

3c) Plumbing Schematic (Danfoss kit)

Section D : pg 11 - 13H-Box-12 Wiring Schematics1d) H-Box-12 V1.2

2d) H-Box-12 (previous model)

Section E : pg 14Installing a Wet Room Thermostat

Section F : pg 15Schematic - Wireless Control Centre E8.583RF

Section G : pg 16Schematic - Wireless Receiver (single zone) E8.413RF / E8.423RF

Section H : WundaSmart pg 1 - 4WundaSmart - Working with single & multi-zone system & combi boilers

E09Installation guide - wiring & plumbing

✆ 0800 5420 816 www.wundatrade.co.ukTHE BRAND YOU CAN TRUST

Revision Date: 04/09/2019

2

Radiators

Zone Valves

Circulationpump

HWC

BoilerABV

Under FloorHeating systemsupplied byWunda

Section A 1A : Schematic - System Boiler with hot water cylinder, radiators & UFH




3

7

This drawing is forguidance only.All installationsshould be undertakenby aqualified person only.

Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz

Some Earths & Neutralsomitted for clarity

1 2 3 4 5 6 7 8 9 10

BoilerRadiatorsRoom Stat

L N L1

M

B

O

GM

O

G

UnderfloorHeating pump

EL

N

N LHTon

HWSon

Time Clock 00:00

Hot waterCylinder Stat

1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B

CirculatingPumpOmitted forclarity

L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G

Wundafloor wiring centre used withmultiple Programmable thermostats onUFH system.


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput

Wundafloor ProgrammableThermostat

*

*Thermostat may be powered from a seperated (localised) fused spur.

**Standard dial thermostats may be power from a time clock.

**

2A Typical wiring scheme for multi zone UFH system with a System Boiler

3A Typical wiring scheme for single zone UFH system with a System Boiler

S-PlanWiring centre

S-PlanWiring centre

Section A 2A : Typical wiring scheme for multi-zone UHF system with a System Boiler

This drawing is for guidance only. All installations should be undertaken by a qualified person only.



C 1


4

7


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G



EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput


*



**



S-PlanWiring centre

S-PlanWiring centre

Section A 3A : Typical wiring scheme for single zone UHF system with a System Boiler




C 1





6

8

Wiring Key

Orange

Grey

BrownB

O

G

Wiring Schematic A


1 2 3 4 5 6 7 8 9 10

Combi Boiler+ Time Clock

00:00L N SL SI

RAD roomstat

L N L1

M

B

O

GM

B

O

G

L N E230V50Hz

Wundafloor wiring centre used with multipleProgrammable thermostats on UFH system.


EL

N

UnderfloorZone valve

RadiatorsZone valve

Wiring Key

Orange

Grey

BrownB

O

G

1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

L N L1

RAD roomstat

L N L1


M

EL

N

B

O

GM

B

O

G

L N E

230V50Hz

SomeEarths &Neutrals

omitted forclarity


RadiatorsZone valve



***


S-PlanWiring centre

S-PlanWiring centre

2B Typical wiring scheme for multi zone UFH with a combination boiler

3B Typical wiring scheme for single zone UFH with a combination boiler

This drawing is for guidance only.All installations should be undertaken by aqualified person only.


Section B 2B : Typical wiring scheme for multi zone UHF system with a Combination Boiler


Switch Relay

Pump Relay

230v Input




7

8

Wiring Key

Orange

Grey

BrownB

O

G

Wiring Schematic A


1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

RAD roomstat

L N L1

M

B

O

GM

B

O

G

L N E230V50Hz



EL

N


RadiatorsZone valve

Wiring Key

Orange

Grey

BrownB

O

G

1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

L N L1

RAD roomstat

L N L1


M

EL

N

B

O

GM

B

O

G

L N E

230V50Hz


omitted forclarity


RadiatorsZone valve



***


S-PlanWiring centre

S-PlanWiring centre





Section B 3B : Typical wiring scheme for single zone UHF system with a Combination Boiler





8

Radiators


Combi or System Boiler

ABV

Under FloorHeating systemsupplied byWunda

Connections to existing radiator flow & return

Section C 1C : Schematic - Adding single area UFH to an existing radiator system

*

*

*

HWC



9

10

This is when a single zone underfloorheating kit is connected to an existingradiator system without an individual zonevalve for the UFH and therefore unable tocall the boiler/heat source independentlyfor heat.

Although a room thermostat or program-mable thermostat can be used to controlair temperature, this area can only be ONwhen the existing heating system is ON.

When this is the case, a pipe thermostatcan be attached to the heating mains flow,so that the new area of the underfloorknows when hot water is available andtherefore stops the pump running when noheat is available.


L N L1

EL

N

Pipe thermostatset at 35°C

L N E

230V50Hz

1 2 3 4 5 6 7 8 9 10


*A standard dial thermostat may be power from a time clock.

*

2C wiring schematic for single zone kit added to radiator system

Terminal Block

Section C 2C : Wiring schematic for single zone kit added to radiator system

This is when a single zone underfloor heating kit is connected to an existing radiator system without an individual zone valve for the UFH and therefore unable to call the boiler/heat source independently for heat.

Although a room thermostat or programmable thermostat can be used to control air temperature, this area can only be ON when the existing heating system is ON.

When this is the case, a pipe thermostat can be attached to the heating mains flow, so that the new area of the underfloor knows when hot water is available and therefore stops the pump running when no heat is available.





10

Radiators

Danfoss FHV-R

HWC

Combi or System Boiler

ABV

Connections to existing radiator flow & return

This diagram show how a Danfoss FHV-R is connected to and existing radiator system.

Please note:• The valve should be used with a maximum of 100m of 16mm Wundapipe.• The valve must be positioned on the return from the heated floor.• It is recommended that isolation valves are used for filling and maintenance.• The supply pipework must not be less than 15mm.• The heating engineer must check that the is adquate flow available from the heating mains.

Section C 3C : Schematic - Danfoss FHV-R Kit to an existing radiator system

*

*

*




11

11

Wiring centre - H-Box-12

LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W

From main heating controlsPower input (230VAC, 50/60Hz)

LN

N L

Manifoldpump

Max. 4 actuators can belinked to one room stat

TimerRTS 80.70

LIVE - 1N - 2SL - 4

Boiler / zone valve switchVoltage free OR with link 230V

LN

L N

*Optional Link

*

Voltage Free SwitchWith Optional Link fitted - Can be used as a 230v switch live output to zone valve or boiler/heat sourceWithout Optional Link fitted - Can be used as low voltage switching for Boiler/heat source

*

V1.2

°L.E.D.

(Identifiable by model No. ZDA0003-V1.2 on PCB and addition of L.E.D.)

Dimension (mm) 310 W x 110 H x 55 DAmbient temperature 0°C-50°C

Relay Output(2 minutes delay) (230V AC, 3A)

Two Relays will be engaged whenever one or morethermostats call for heating.

The relays will be disengaged when all the zonethermostats stop heating activity

Technical Data.Supply voltage 230V AC, 50/60HzOutput voltage 230V AC,50/60HzMax.Load 4ANumber of zone outputs 12 zones

Left Hand: 1 x potential free relay outputRight Hand:1 x independent relay output

Current Model

L N L1

Room thermostat Terminal Note

T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat

E91.713Touch screen room ‘stat

1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

*Voltage Free Switch• With Optional Link fitted - Can be used as a 230v switch live output to zone valve or boiler/heat source

• Without Optional Link fitted - Can be used as low voltage switching for Boiler/heat source

RTC75.713TButton room stat

E91.713Touch screen room stat

Sensor 6 - 71 2 3



Transformer

N L

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

11


LNL1L1N

Transformer

GroundFU

SE

(max

. 10A

)2

x 5m

m F

AS

T B

LOW


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

Section D 1D : Schematic - Wiring Centre - H-Box-12 V1.2 PCB version H-Box-12 V1.4 or V1.5 (Current model)

(Identifiable by model no. H-box212_V1.4 or V1.5 on PCB)

11

Section D 1D : Schematic - Wiring Centre - H-Box-12 V1.2 (current model)

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

(identifiable by model No. ZDA0003-V1.2 on PCB and addition of L.E.D.)





Sensor 6 - 71 2 3


✆ 0800 5420 816 www.wundafloorheating.co.ukTHE BRAND YOU CAN TRUST


N L

11


LNL1L1N

Transformer

GroundFU

SE

(max

. 10A

)2

x 5m

m F

AS

T B

LOW


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

Note: if using a time clock/programmer to control the wiring centre please ensure it is suitably rated for the electrical load.

11

Section D 1D : Schematic - Wiring Centre - H-Box-12 V1.2 (current model)

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

11


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

(identifiable by model No. ZDA0003-V1.2 on PCB and addition of L.E.D.)





Sensor 6 - 71 2 3


✆ 0800 5420 816 www.wundafloorheating.co.ukTHE BRAND YOU CAN TRUST

(Previous model)

(Identifiable by model no. ZDA0003-V1.2)

2D


12



N L

11


LNL1L1N

Transformer

GroundFU

SE

(max

. 10A

)2

x 5m

m F

AS

T B

LOW


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -


13

Section D 3D : Schematic - Wiring Centre - H-Box-12 (previous m- no LED on PCB)

12

Wiring centre - H-Box-12Technical Data.

Supply voltage 230V AC, 50/60HzOutput voltage 230V AC,50/60HzMax.Load 4ANumber of zone outputs 12 zones


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

Optional Link*


*

*





Previous model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -

12

Wiring centre - H-Box-12Technical Data.

Supply voltage 230V AC, 50/60HzOutput voltage 230V AC,50/60HzMax.Load 4ANumber of zone outputs 12 zones


LNL1L1N

Transformer

Ground

FUS

E (m

ax. 1

0A)

2 x

5mm

FA

ST

BLO

W


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

Optional Link*


*

*





Previous model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -





Sensor 6 - 71 2 3



(Old model)


N L

11


LNL1L1N

Transformer

GroundFU

SE

(max

. 10A

)2

x 5m

m F

AS

T B

LOW


LN

N L

Manifoldpump


TimerRTS 80.70

LIVE - 1N - 2SL - 4


LN

L N

*Optional Link

*


*

V1.2

°L.E.D.








Current Model

L N L1


T6360C 2 6 3 Link 3-5

RTC86.13 1 2 4 Sensor 6 - 7

1 2 4 Sensor 6 - 7

RTC75.713T

Button room stat


1 2 3 Sensor 6 - 7

RTC84.13 1 2 4 -


14

Section E Installing Wet Room Thermostats

For floor temperature sensing, place probe midway between pipe circuit runs to monitor average floor temperature.

For air temperature, place unit on outside wall of wet room in desired location at height of 1500 mm from floor level.

Check distance between thermostat’s terminal block and probe casing location of wet room’s interior wall is no more than 3 metres.

Do not trim probe sensor to length to ensure the probe wire is long enough to span the distance between the unit’s terminal block, to go through prepared hole through wall and exit into supplied probe housing fixed onto interior wall of wet room at 1500 mm from wet room floor level.

*Bathroom Stat

Unit can be used as a floor temperature sensor or an air temperature sensor.

Bathroom stat on outside of wet room wall

Ensure hole is sealed between wall space and probe housing so that only the wet room air temperature is detected

Probe housing on inside of wet room wall

1500mm 1500mm

* models: RTC86.13, RTC75.713T & E91.713 can be used with a probe

3000mm Probe Probe Housing

Probe Housing

Stat

Max 3000mm distance




Section F Schematic - Wireless Control Centre E8.583RF

Manifold Pump

Max 3 actuators can be connectedto one channel

Boiler / zone valve switch Voltage freeOR with link 230v

*Optional Link

AC230V Input

*Voltage Free Switch• With Optional Link fitted - Can be used as a 230v switch liveoutput to zone valve or boiler/heat source• Without Optional Link fitted - Can be used as low voltage switching for boiler/heat source

Wireless Control Centre E8.583RFParametersVoltage : AC230VCurrent : Max 3AWireless Frequency Output: 433MhzEffective Transmission Distance: 200m empty spaceAmbient Temperature : -5~50°CPump Linkage: 230V sub-outputBoiler/Zone Valve Linkage: Volt free or 230V with linkProtective Housing: Ip40Weight : 1 KG

E8.413RF/E8.423RF Wireless Receiver (Single Zone)

Technical Data

Voltage : AC230V

Current : Max 3A

Wireless Frequency Output: 433Mhz

Effective Transmission Distance: 200m empty space

Ambient Temperature : -5~50°C

Pump Linkage: 230V sub-output

Boiler/Zone Valve Linkage: Volt free or 230V with link

Protective Housing: Ip40

Weight : 1 KG

* Voltage Free Switch• With Optional Link fitted - Can be used as a 230v switch live output to zone valve or boiler/heat source


AC230V Input

Boiler / zone valve switch Voltage freeOR with link 230vMax 3 actuators can be connected

to one channel

Manifold Pump

*Optional link

15

NOTE:Pump and switch relays have a 3 minute delay.




N L N L

Section G Schematic - Wireless Receiver (single zone) E8.413RF / E8.423RF

Manifold Pump

Max 3 actuators can be connectedto one channel

Boiler / zone valve switch Voltage freeOR with link 230v

*Optional Link

AC230V Input

*Voltage Free Switch• With Optional Link fitted - Can be used as a 230v switch liveoutput to zone valve or boiler/heat source• Without Optional Link fitted - Can be used as low voltage switching for boiler/heat source

Wireless Control Centre E8.583RFParametersVoltage : AC230VCurrent : Max 3AWireless Frequency Output: 433MhzEffective Transmission Distance: 200m empty spaceAmbient Temperature : -5~50°CPump Linkage: 230V sub-outputBoiler/Zone Valve Linkage: Volt free or 230V with linkProtective Housing: Ip40Weight : 1 KG

E8.413RF/E8.423RF Wireless Receiver (Single Zone)

7 6 5 4 3 2 1

7 6 5 4 3 2 1

Sensor*(External Probe)

Sensor*(External Probe)

Potential freeoutput 3A

Main Controlcircuit

L1 N13A

3A

N L

N LL1

E8.413RF

E8.423RF

16

Technical Data

Voltage : AC230V

Current : Max 3A

Wireless Frequency Output: 433Mhz

Effective Transmission Distance: 200m empty space

*External Limitation Value: 300C, 400C and 500C if external probe is fitted. (Factory setting 300C)

Limitation Switch Differential: -20C

Ambient Temperature: -50C – 500C

Protective housing: Ip20

Housing Material: Anti Flammable PC

*OPTIONAL (not supplied with receiver)




Typical wiring schemes for single zone & multi-zone Wundasmart UHF systems

when partnered with a System Boiler and Combination Boiler

1

7


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G



EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput


*



**



S-PlanWiring centre

S-PlanWiring centre

Section H1 : Typical wiring scheme for multi-zone WundaSmart UHF system with a System Boiler



C 1


7


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G



EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput


*



**



S-PlanWiring centre

S-PlanWiring centre


WundaSmart wiring centre used with multipleWundaSmart thermostats on UFH system

SwitchRelay

230vOutput

PumpRelay

2

7


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G



EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput


*



**



S-PlanWiring centre

S-PlanWiring centre

Section H2 : Typical wiring scheme for single zone WundaSmart UHF system with a System Boiler




C 1


WundaSmart Switch

NO

COM

NC

3

8

Wiring Key

Orange

Grey

BrownB

O

G

Wiring Schematic A


1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

RAD roomstat

L N L1

M

B

O

GM

B

O

G

L N E230V50Hz



EL

N


RadiatorsZone valve

Wiring Key

Orange

Grey

BrownB

O

G

1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

L N L1

RAD roomstat

L N L1


M

EL

N

B

O

GM

B

O

G

L N E

230V50Hz


omitted forclarity


RadiatorsZone valve



***


S-PlanWiring centre

S-PlanWiring centre





Section H3 : Typical wiring scheme for multi zone WundaSmart UHF system with a Combination Boiler


Switch Relay

Pump Relay

230v Input




WundaSmart wiring centre used with multipleWundaSmart thermostats on UFH system

7


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G



EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput


*



**



S-PlanWiring centre

S-PlanWiring centre

SwitchRelay

230vOutput

PumpRelay

4

8

Wiring Key

Orange

Grey

BrownB

O

G

Wiring Schematic A


1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

RAD roomstat

L N L1

M

B

O

GM

B

O

G

L N E230V50Hz



EL

N


RadiatorsZone valve

Wiring Key

Orange

Grey

BrownB

O

G

1 2 3 4 5 6 7 8 9 10


00:00L N SL SI

L N L1

RAD roomstat

L N L1


M

EL

N

B

O

GM

B

O

G

L N E

230V50Hz


omitted forclarity


RadiatorsZone valve



***


S-PlanWiring centre

S-PlanWiring centre





Section H4 : Typical wiring scheme for single zone Wundasmart UHF system with a Combination Boiler





WundaSmart Switch

NO

COM

NC

7


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G


EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


L N SL

B

Hot WaterZone Valve

L N L1


Wiring Key

Orange

Grey

BrownB

O

G

L N E

230V50Hz


1 2 3 4 5 6 7 8 9 10


L N L1

M

B

O

GM

O

G



EL

N

N LHTon

HWSon

Time Clock 00:00


1 C

RadiatorsZone Valve

M G

UFHZone Valve

O

B


Switch Relay

PumpRelayL N SL

B

Hot WaterZone Valve

230vInput


*



**



S-PlanWiring centre

S-PlanWiring centre

Date post:	19-Feb-2022
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Installation guide - wiring & plumbing

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