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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 Schematics
Section A
System Boiler with hot water cylinder, radiators & UFH
1a)
Plumbing Schematic
2a)
Multi Zone Wiring Schematic
3a)
Single Zone Wiring Schematic
Section B
Combination Boiler with radiators & UFH
1b) Plumbing Schematic
2b) Multi Zone Wiring Schematic
3b) Single Zone Wiring Schematic
Section C
Adding Single Zone kit to exisiting radiator system
1c) Plumbing Schematic
2c) Wiring Schematic
3c) Plumbing Schematic (Danfoss kit)
Section D
H-Box-12 Wiring Schematics
1d) H-Box-12 V1.2
2d) H-Box-12 (previous model)
Section E
Installing a Wet Room Thermostat
Section F
Schematic - Wireless Control Centre E8.583RF
Section G
Schematic - Wireless Receiver (single zone) E8.413RF / E8.423RF
E09
Installation guide - wiring & plumbing
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0800 5420 816
www.wundafloorheating.co.uk
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