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1. Technical characteristics
Operating temperature
0°C - 50°C
Protection
Class I - IP20
Power supply
Fuse
24 VAC +/- 10%
2.5AT 5x20mm
Outputs
Pump & accessories:
Relay => 2 free contact 8A 250Vac
Zones:
6 independent zones => The maximum output power of each zones depends
of the thermostat connecting on this zone but for easy installation we
recommend a maximum of 4 actuators by zones.
2. Function and description
The UFH-MASTER with 6 zones is a wiring module with built in pump logic. All the main electrical connections
for water floor heating system are existing. This box can be adapted either on a DIN rail or directly on a wall.
(the DIN rail mounting permit to add with facility a UFH-SLAVE or UFH-H&C module).
It connects room thermostats to their corresponding actuators.
The state of each zone is indicated by individual green LED.
As soon as we have a heat demand from one zone a relay with 2 potential-free contacts is switch on (pump,
boiler or other possible connection).
By using terminal A and B, the pilot wire of thermostats can be controlled by a main zone programmer (UFH-
DIGITAL PROGRAMMER 24V).
3. LED indicator
Red: - Heating indication (water circulation on this zone)
4. Possible combinations (6, 10, 12 zones)
LED indicator zone
Screw connector for
power supply
Screw connector for pump
and accessories
Supply for thermostat and
actuators for 1 zone
MASTER 6 ZONES + SLAVE 4 ZONES
MASTER 6 ZONES + SLAVE 6 ZONES
MASTER 6 ZONES
4


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