Watts WFHC-MASTERH&C-BUS & SLAVE Guide Utilisateur page 9

Type of the Heating & Cooling
commutation
The following parameters are only available if a water humidity sensor (NTC 10K or free contact sensor) is
Setting level to switch off the cooling function to avoid
residual humidity in the house:
When the water temperature in the pipe decrease
under this level during the time of the anti short cycle
adjusted on "F9" the cooling function will be stopped.
Press (OK) to view the instantaneous value measured
by the sensor.
Minimum time to decide to stop the cooling function
when the water temperature decreases under the "F8"
level.
Type of degrees displayed
Type of time displayed
Selection of the proportional band (PWM) duration in
minutes
You could decrease this time up to 15min only if your
installation as fast thermal reacting behavior
(Liquid concrete floor, ...)
Value of the proportional band (PWM)
Adjust this value like this:
A well insulated house « 1.5°C »
A not insulated house « 4°C »
Press (OK) during 5 seconds to reset the installation.
All parameters are replaced by default value.
Master Heat&Cool thermostat Bus configuration mode (see the corresponding section)
Standard thermostat Bus configuration mode (see the corresponding section)
Press (OK) on this parameter to exit the parameters menu end come back to the main display.
8. Thermostat alarm
- You could see the alarm on the Master (Red blinking LED on the concerned zone and alarm sound).
To stop immediately the alarm sound, press the (OK) key.
- If an alarm is detected on one zone, the regulation will be maintained on this zone by average of the actual room
temperatures of the other zones used on the Master.
rF: The Heating & Cooling mode will be done by the Master HC
thermostat WFHT-BASICH&C-BUS.
* Generally use when separate system is installed. (Boiler, water
chillers...)
CtAC: The Heating & Cooling mode will be done by the Heat Pump
connected on the special input of your RF receiver (see the wiring for
more explanation)
* Generally use when manual or automatic reversible Heat pump
SEnS: The heating & Cooling mode will be done by the WFH-
SENSOR installed on the incoming pipe of the manifolds and
connected on the special input on RF receiver (see the wiring for more
explanation) * Generally use when reversible heat pump without Heat
& Cool information and control is installed.
connected and installed on the incoming pipe of the manifolds
(See the schematic and system drawing to install the sensor)
Default: 18°C
Adjustable: 5 to 25°C
Default: 30
Adjustable: 00 to 60min
°C: Celsius degrees.
°F: Fahrenheit degrees.
Default: 24H00
Adjustable: 12:00 am/pm
Default: 20 minutes
Adjustable: 0 to 120 min
Default: 3.0°C
Adjustable: 0.1 to 6°C
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