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4. Small Description
This controller (WFHC-MASTERH&C-BUS) used in combination with the WFHT-BASICH&C-BUS or WFHT-LCDH&C-
BUS thermostat offers a complete package to manage all component of your water floor heating and cooling installation.
You could control different type of installations like:
Installation1: Heating only.
Installation2: Cooling Only
Installation3: Pack E for separate systems (Boiler and water chillers) or slave heat pump
Installation4: Pack D for reversible Heat pump (manual or automatic)
For a Heating & Cooling commutation, there is a 2 minutes standby without control to avoid hot / cold overlap
Installation5: Pack C for reversible Heat pump (without Heat & Cool information and control)
In case of cooling function is used, you could control the residual humidity in the house by:
The special input on the receiver which can be use for a NTC or Humidity sensor mounted on incoming pipe of the
manifold. (See the corresponding part)
5. DISPLAY & LED Explanation
Keyboards:
Validation key (OK)
Plus key (+)
Minus key (-)
Navigation key left (◄)
Navigation key right (►)
Display:
1. Humidity drier output activated.
2. Working mode (active mode is framed).
3. Day of the week.
4. Setting temperature required by the zone
Thermostat or time.
5. Graphic of the program for the displayed zone.
6. Current zone or Room temperature if 7 displayed.
7. Room temperatures indicator.
8. Cooling mode indicator (blinks when operating).
9. Heating mode indicator (blinks when operating).
10. Holiday indicator.
Special displaying:
FL.l: Indicate that the zone thermostat is in « Floor Lower limitation mode »
FL.h: Indicate that the zone thermostat is in « Floor upper limitation mode »
(Only available if floor sensor is connected)
OFF: Indicate that the thermostat is stopped.
LED 1: Red => Heating demand indication
Green => Cooling demand indication
Red blinking => Heat & cool sensor error
Off => System in standby
LED 2: Orange => Humidity detection (Humidity drier is activated)
LED 3 to 6 (or Led 14 with 2 slaves):
Green Flash: => indicates a correct radio reception on zone.
Green blinking: => in normal functioning if you press one key, it indicates the current zone or group zone
selected.
Red: =>Indicates that the zone is activated (Water circulation on this circuit)
Red blinking: Indicates that this zone is in alarm. (See thermostat alarm section).
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3
4
1
LED1 --------------------------- --------------------------------- LED14
5


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