Thermor R4GHD2-Mk22, User Manual

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User’s manual
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9.4 - Connect the radiator
The radiator must be powered at 230V
50 Hz.
The radiator power supply must be
connected directly to the network behind
the omni-pole breaking device with a
contact opening distance of at least
3 mm without an intermediate switch
(clock, mechanical and static relay,
ambience thermostat, etc).
The connection to the mains power supply will be made using a 3-wire cable (Brown =
Phase, Blue = Neutral, Black = Pilot wire) through a connection box. The connection box
must be installed at least 25 cm above the floor in wet rooms like kitchens, the bathrooms.
The installation must be provided with a circuit breaker type protection device.
Connection to the earth is prohibited. Do not connect the pilot wire (black) to the earth.
The manufacturer, his after sales service or a similar qualified person must replace the
power supply cable if it is damaged, so that the work can be done safely.
The power supply cable must be put back into position and fixed with the plastic
flange to hold the thermostat in position. There is a risk of electrical danger if this
operation is not respected.
If the pilot or piloted radiator is protected by a 30mA differential protection device (e.g.
bathroom), then the power supply to the pilot wire connected onto this differential switch
will have to be protected.
Pilot wire connection test
You can connect the pilot wire if your house is fitted with a programming unit, or a power
manager.
In this case, make the following checks to verify that programming orders are transmitted
correctly:
Orders
Received
No
current
230V for 3s 230V for 7s 230V
-115V
négative
+115V
positive
Signal to be
transmitted
Mode
Obtained
COMFORT
COMFORT
-1°C
COMFORT
-2°C
ECO
FROST
FREE
SWITCH
HEATING
OF /
LOAD
SHEDDING
As regards the programming by pilot wire or current carrier, the frost-free or relief orders
take priority.
The time for switching from the comfort mode to the Eco mode takes about 12 seconds.
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