EPH CONTROLS UFH10 10 Zone Underfloor Heating Wiring Thermostat Installation Guide
- June 13, 2024
- EPH CONTROLS
Table of Contents
UFH10
Wiring Centre
Installation and
Operation 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 | Admissible ambient humidity: | 5-95%RH |
|---|---|---|---|
| Number of Zones: | 10 | Dimensions: | 380 x 165 x 50 mm |
| Power Supply Indication: | Yes | Heat Enable contact rating: | 3A |
| Heat Enable Indication: | Yes | UFH Pump contact rating: | 3A |
| UFH Valve Indication: | Yes | IP rating: | IP20 |
| Zone 1 to Zone 10 Indication: | Yes | Max. No. of actuators per zone | 4 |
| Ambient temperature: | 0…45°C | Max. Permissible Load | 5A Resistive |
Mounting and Installation
- Remove the UFH10 from its packaging.
- 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)
L 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.
| CONTROLS | INSTALLED |
|---|---|
| UFH Pump | Yes |
| UFH Valve | Yes |
| UFH Actuators | Yes |
| Programmer | – |
| RAD Valve | – |
| HW Valve | – |
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:
| CONTROLS | INSTALLED |
|---|---|
| UFH Pump | Yes |
| UFH Valve | Yes |
| UFH Actuators | Yes |
| Programmer | R47 |
| RAD Valve | – |
| HW Valve | – |
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.
UFH10 – 10 x Underfloor Heating Zones
c/w Mains Operated Non- Programmable Setback Thermostats.
Options:
Note: Please refer to individual thermostat wiring diagrams
| CONTROLS | INSTALLED |
|---|---|
| UFH Pump | Yes |
| UFH Valve | Yes |
| UFH Actuators | Yes |
| Programmer | R47 |
| RAD Valve | – |
| HW Valve | – |
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.
UFH10 – 8 x Underfloor Heating Zones
– 1 x Radiator Zone
– 1 x Hot Water Zone
c/w Mains Operated Non- Programmable Thermostats. Options:
Note: Please refer to individual thermostat wiring diagrams.
| CONTROLS | INSTALLED |
|---|---|
| UFH Pump | Yes |
| UFH Valve | Yes |
| UFH Actuators | Yes |
| Programmer | R47 |
| RAD Valve | V22_P |
| HW Valve | V22_P |
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.
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
EPH Controls Ltd.
UFH10 is compatible with the following EPH thermostats
Electro – Mechanical Thermostats
Documents / Resources
| EPH
CONTROLS UFH10 10 Zone Underfloor Heating Wiring
Thermostat
[pdf] Installation Guide
CDTP2, CP4M, RDTP, CDT2, HDT, RDT, EDBS, UFH10 10 Zone Underfloor Heating
Wiring Thermostat, 10 Zone Underfloor Heating Wiring Thermostat, Underfloor
Heating Wiring Thermostat, Heating Wiring Thermostat, Thermostat
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