EPH CONTROLS UFH10 10 Zone Underfloor Heating Wiring Centre Installation Guide

EPH CONTROLS UFH10 10 Zone Underfloor Heating Wiring Centre Installation Guide

Factory Default Settings

Zone 9 Switch: UFH
Zone 10   Switch: UFH

Grey and Orange terminals of the UFH valve are electrically linked. If UFH valve is fitted, remove this link.

Specifications

Power supply: 230Vac 50-60Hz
Number of Zones: 10
Power Supply Indication: Yes
Heat Enable Indication: Yes
UFH Valve Indication: Yes
Zone 1 to Zone 10 Indication: Yes
Ambient temperature: 0…45°C
Admissible ambient humidity: 5-95%RH
Dimensions: 380 x 165 x 50 mm
Heat Enable contact rating: 3A
UFH Pump contact rating: 3A
IP rating: IP20
Max. No. of actuators per zone: 4
Max. Permissible Load 5A: Resistive

Mounting and Installation

1. Remove the UFH10 from its packaging.
2. The UFH10 can be directly mounted on a wall using the fixing holes on the base of the unit or it can be directly mounted on DIN rail.
   

Wiring Centre Terminals

Power Supply

L 230Vac Live
E Earth
N Neutral

Programmer

L 230Vac to the programmer.
E Earth to the programmer.
N Neutral to the programmer.
1 Zone 1 output from programmer to the wiring centre.
2 Zone 2 output from programmer to the wiring centre.
3 Zone 3 output from programmer to the wiring centre.
4 Zone 4 output from programmer to the wiring centre.

Thermostats (Zone 1 to Zone 8)

L Live supply to the thermostat.
1 Timed switch live to room stat from programmer zone 1.
2 Timed switch live to room stat from programmer zone 2.
E Earth.
N Neutral supply to the thermostat.
S/L Switch live from the thermostat to the wiring centre.

Note: With thermostats 1 to 8, you have an option of; one of two time inputs.

Thermostats (Zone 9 and Zone 10)

L Live supply to the thermostat.
1 Timed switch live to room stat from programmer zone 1
2 Timed switch live to room stat from programmer zone 2
3 Timed switch live to room stat from programmer zone 3
4 Timed switch live to room stat from programmer zone 4
E Earth.
N Neutral supply to the thermostat.
S/L Switch live from the thermostat to the wiring centre.

Note: With thermostats 9 & 10, you have an option of; one of four time inputs.

Heat Enable (Boiler / Heat Pump On)

LS Live supply
E Earth
LR Live return

This is a volt free relay which is switched on when there is a call for heat.

If 230V is applied to terminal LS and there is a call for heat, 230V will come back on terminal LR.

UFH Pump (Underfloor Heating Pump)

L 230Vac Live
E Earth
N Neutral

When an underfloor heating zone calls for heat, 230V is sent to the underfloor heating manifold pump.

Best practice is to wire the underfloor heating manifold pump through a high limit thermostat which is mounted on the manifold.

UFH Valve (Underfloor Heating Valve)

GR Grey Switch Live
OR Orange Permanent Live
L Live
E Earth
N Neutral

When an underfloor heating zone calls for heat, 230V is sent to the Underfloor heating valve.
The valves auxiliary contacts are wired to the GR and OR terminals.
Note: Please refer to factory default settings on page 1.

Actuators (Zone 1 to Zone 8)

L 230V Live supply to the actuator.
N Neutral supply to the actuator.

There are two terminals marked L & N for each zone.

Actuators (Zone 9 and Zone 10)

. Live supply to the actuator.
N Neutral supply to the actuator.

There are two terminals marked L and two terminals marked N for each zone.

Both zones 9 and 10 have a switch associated with each zone.

This allows the installer to use these zones as underfloor heating zones or radiator / hot water zones.

Operation of Zone 9 & 10 UFH – RAD / HW switches

If set to UFH – When the thermostat calls for heat, the actuator, boiler and pump / valve outputs are enabled.

If set to RAD / HW – When the thermostat calls for heat, the actuator is enabled.

To enable the boiler output, the actuator auxiliary contacts (Grey and Orange wires) must be connected to the LS & LR terminals of the Heat Enable.

SWITCH SELECTED| HEAT ENABLE| UFH PUMP| UFH VALVE| ZONE VALVE ACTUATOR
---|---|---|---|---
UFH| On| On| On| On
RAD| Off| Off| Off| On

UFH10 – 10 x Underfloor Heating Zones

c/w Mains Operated Programmable Thermostats.

Options:

Note: Please refer to individual thermostat wiring diagrams.

230V on OR & L when a UFH zone calls for heat.
If no valve is fitted, GR & OR must be linked out.

UFH10 – 10 x Underfloor Heating Zones

c/w Mains Operated Non- Programmable Thermostats. Options:

Note: Please refer to individual thermostat wiring diagrams.

In this example:

• Zone 1 on the programmer is controlling thermostats 1, 2, 3 & 4
• Zone 2 on the programmer is controlling thermostats 5, 6, 7 & 8
• Zone 3 on the programmer is controlling thermostat 9
• Zone 4 on the programmer is controlling thermostat 10
  

230V on OR & L when a UFH zone calls for heat.
If no valve is fitted, GR & OR must be linked out

c/w Mains Operated Non- Programmable Setback Thermostats.

Options:

Note: Please refer to individual thermostat wiring diagrams.

In this example:

• Zone 1 on the programmer is controlling thermostats 1, 2, 3 & 4
• Zone 2 on the programmer is controlling thermostats 5, 6, 7 & 8
• Zone 3 on the programmer is controlling thermostat 9
• Zone 4 on the programmer is controlling thermostat 10
  

UFH10 – 8 x Underfloor Heating Zones

• 1 x Radiator Zone
• 1 x Hot Water Zone
  

Note: Please refer to individual thermostat wiring diagrams.

In this example:

• Zone 1 on the programmer is controlling thermostats 1, 2, 3 & 4
• Zone 2 on the programmer is controlling thermostats 5, 6, 7 & 8
• Zone 3 on the programmer is controlling thermostat 9
• Zone 4 on the programmer is controlling thermostat 10
  

UFH10 is compatible with the following EPH thermostats

Electro – Mechanical Thermostats

Programmable Thermostats

Non Programmable Thermostats

Cylinder Thermostats

EPH Controls IE

technical@ephcontrols.com
www.ephcontrols.com/contact-us
T +353 21 471 8440

EPH Controls UK

technical@ephcontrols.co.uk
www.ephcontrols.co.uk/contact-us
T +44 1933 322 072

Documents / Resources

| EPH CONTROLS UFH10 10 Zone Underfloor Heating Wiring Centre [pdf] Installation Guide
UFH10, UFH10 10 Zone Underfloor Heating Wiring Centre, 10 Zone Underfloor Heating Wiring Centre, Underfloor Heating Wiring Centre, Wiring Centre, Centre
---|---
| EPH CONTROLS UFH10 10 Zone Underfloor Heating Wiring Centre [pdf] User Guide
UFH10 10 Zone Underfloor Heating Wiring Centre, UFH10, 10 Zone Underfloor Heating Wiring Centre, Underfloor Heating Wiring Centre, Heating Wiring Centre, Wiring Centre, Centre

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