Watts WFHC 06Z 02 HC RF 24 User manual

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Water Floor Controller Wireless
Heating & Cooling
WFHC 06Z 02 HC RF 24
WFHC 06Z 02 HC RF 230
WFHC 10Z 02 HC RF 24
WFHC 10Z 02 HC RF 230

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USER GUIDE GB

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1. GENERAL INFORMATION
1.1 Safety warnings and operating instructions
This product should be installed preferably by a qualified professional. Subject to observation of the above terms, the
manufacturer shall assume the liability for the equipment as provided by legal stipulations.
All instructions in this Installation & Operation manual should be observed when working with the controller. Failures due to
improper installation, improper use or poor maintenance are voiding manufacturer liability.
Any attempt to repair voids the responsibility and the obligation to guarantee and replacement from the manufacturer.
2012/19/EU (WEEE directive): Products marked with this symbol cannot be disposed of as unsorted municipal waste in the
European Union. For proper recycling,return this product to your local supplier upon the purchase of equivalent new
equipment, or dispose of it at designated collection points. For more information see: www.recyclethis.info
Application
1.2 Application
The controller has been designed for use in residential rooms, office spaces and industrial facilities. Verify that the installation
complies with existing regulations before operation to ensure proper use of the installation.
2. PRESENTATION
The Connecting box WFC HC RF is especially designed to control your Under Floor Heating and Cooling system. It
allows easy and quick connection of thermostats and actuators.
4 versions are available:
230 V version
24V Version
6 zones
WFHC 06Z 02 HC RF 230
WFHC 06Z 02 HC RF 24 (Require
external 230V/24V transformer:
TRF02 230/24)
10 zones
WFHC 10Z 02 HC RF 230
WFHC 10Z 02 HC RF 24 (Require
external 230V/24V transformer:
TRF02 230/24)
2.1 Functions
It has integrated multiple functions:
•Wall mounted or mounter on DIN Rail
•Push-in cable connections with strain relief
•LED status indication and DIP switch for device setting
•Manage 6 or 10 zones with 2 actuators per zone
•Easy merging of the zones on the same thermostat
•Multiple systems configuration
•H&C input (230V and volt free signal)
•Water temperature measurement (Probe not supplied) for humidity detection
•Pump or boiler output (230V and volt free signal)
•Anti-Grip management
•Overheating security
•Internal RF antenna, optional external antenna
•Work with NC and NO actuators
•USB connectivity for software update and data log
2.2 Box content
Water Floor controller. Wiireless solution. 6 zones and 10 zones. 24V and 230V
B
GB

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2.3 First installation
There are 2 ways to install the controller
•Wall mounted using 2 screws.
•Mounted on a DIN Rail
3. PRODUCT DESCRIPTION
3.1 LED color meanings (In Red)
# Led
Heat and Cool led
(Blue/Red)
Fix Red= Heating mode
Fix Blue=Cooling mode
Red or blue blinking = Security detection
Red / Blue blinking= RF error (with WFC H/C RF, WFC HCM RF, BT-CT02
RF, internal antenna). In case of RF error, the system switches in Heating
mode
Pump/Drier Led
(Green/Blue/Red)
Fix Green= Pump is triggered
Red blinking=System error (security detection / humidity sensor error/…)
Blue blinking=Global humidity detection
Blue flashing=Humidity configuration problem
Data Led
(Red/Green)
Green blinking=Ongoing data log
Fix Red=USB error
Fix Green=Connected USB
LED per zone
(Red/Green)
Green blinking=RF transmission/reception
Fix Red= Heating or cooling demand in the zone
Red blinking=RF error with the thermostat
Red blinking on all zones=RF antenna error
In case of RF error, the system switches in Heating mode
3.2 Keys (In Green)
3 capacitive keys are available.

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3.3 DIP switch configuration (In Orange)
DIPswitch
number
Function
Value
(default: OFF)
Configuration
Description
DIP1
Controller
function
OFF
Local Pump
See 5.3
ON
Global pump
DIP2
Actuator types
OFF NC actuator
See 5.6
ON
NO actuator
DIP3
Pump delays
(After start / After
stop request)
OFF 2min/5min
See 5.3
ON 5min/20min
DIP4 and
DIP5
H&C switch
control OFF OFF
Central Unit
BT-CT02 RF
See 5.2
OFF ON
Master thermostat
BT-D03 RF
ON
OFF
WFC HCM RF
ON
ON
H&C input
DIP6
Anti Grip
OFF
Enabled
See 7.1
ON
Disabled
DIP7
Humidity
management
OFF
Comfort approach
See 5.5
ON
Safety approach
DIP8
Humidity sensor
OFF
ON/OFF sensor
See 5.5
ON
Pipe temperature
sensor
3.4 USB stick
USB connectivity allows
•To update the Software of the controller.
•To record data for system monitoring
For the software update, please refer to wattswater.eu for getting the file, put the file on an USB stick.
•Insert the USB stick on the controller
•Switch OFF/ON the controller
•During update,
oGreen LED are power on from Z1 to Z6/Z8
oAll LED become red
oRed LED are power Off from Z6/Z8 to Z1
•After update, you can remove the USB stick

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4. INPUTS / OUTPUTS
4.1 Power Supply
WFHC 06Z 02 HC RF 230
WFHC 10Z 02 HC RF 230
WFHC 06Z 02 HC RF 24
WFHC 10Z 02 HC RF 24
Require to use transformer supplied by Watts (4 cables):
WAT TRF02 230/24
4.2 Heating/cooling Input
Purpose:
This input allows switching the regulation mode for the
system: Heating or cooling.
Source of the signal:
•A mechanical switch
•The Heat Pump
•A BT-WR02 paired on the BT-CT02 central
unit as an ON/OFF device. This solution
allows getting a remote control of the H&C
mode from the application.
Format of the signal:
The input could be free contact or live contact 230V.
Mode
Free contact
Live contact
Heating
Opened
No signal
Cooling
Closed
230Vac
Only one device is the system should be able to select the
H&C mode. Other possible H&C switch signal source (See
3.3)
•Central unit
•WFC HCM RF which embeds an H&C input
•Digital thermostat configured as a Master H&C
thermostat in manual or automatic mode.
Power supply
Junction earth
Power Supply
230V/24V transfomer
Junction earth

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4.3 Pump Output
There are 2 outputs:
•Live contact output (230Vac)
•Free contact output
These outputs can be used to trigger:
•A zone valve
•A pump
•A boiler or heat pump
The 2 outputs are triggered when there are a heating or
cooling demand
•In the controller if DIP switch 1=local
•In the system if DIP switch 1=Global
See 3.3
The delay between the heating or cooling demand and the
pump activation is configurable.
•Pump starts 2 minutes after heating or cooling
demand if DIP switch 3=OFF
•Pump starts 5 minutes after heating or cooling
demand if DIP switch 3=ON
See 3.3
The purpose it to take account the latency of the actuator.
The delay between the end of the heating or cooling
demand and pump output stop is configurable:
•Pump stops 5 minutes after heating or cooling
demand stop if DIP switch 3=OFF
•Pump stops 20 minutes after heating or
cooling demand stop if DIP switch 3=ON
See 3.3
The purpose is to dispel the energy.
4.4 Security input
This is a security input (Free contact).
Closed Contact
No security detection
Opened Contact
Overheating or
overcooling detection
When the contact is opened,
•The local pump output is stopped
•The actuators are closed
•The Pump/Drier Led is red blinking
•The Heat and Cool led is Red or blue
blinking
•If the controller is a sub controller, the
heating or cooling demand is not sent to
the main controller
You can use a contact thermostat for thermal security. You
can install 2 contact thermostats in serial to protect against
both overheating and overcooling.
The product is delivered with a strap on the connector.

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4.5 Humidity detection input
The product has a humidity detection input.
2 possible types of signal:
•Water temperature sensor (CTN 10kΩ): Require
BT-D03 RF RH thermostat
•A humidity contact sensor
1. Humidity contact sensor
Format of the signal
The input is a free contact
No Humidity
Opened contact
Humidity detected
Closed contact
In cooling mode, when humidity is detected, the
controller:
•Stops the pump signal if DIP7=ON (Safety
approach)
•Closes all actuators if DIP7=ON (Safety
approach)
•Requests the WFC HCM RF to enable the
dehumidifier
If the controller is a sub controller, the cooling demand
is not sent to the main controller
2. Water temperature sensor.
For each zone, the controller computes the dew point
based on the ambient temperature and relative
humidity sent by each thermostat. When the water
temperature reaches the dew point in one zone, the
controller
•Closes the actuator of the zone if DIP7=ON
•Enables remote dehumidifier
•Requests the WFC HCM RF to enable the
dehumidifier
If the controller is a sub controller, the cooling demand
of the zone is not sent to the main controller
4.6 NC/NO actuators
Connect one NC or NO actuator per connector
•230V actuators for WFHC 06Z 02 HC RF
230 and WFHC 10Z 02 HC RF 230
•24V actuators for WFHC 06Z 02 HC RF
24 and WFHC 10Z 02 HC RF 24
The type of actuators is defined by DIP2.
It is necessary to use the same type for all actuators.

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4.7 External antenna
The controller embeds an internal antenna. If require, an
external antenna can be connected to improve the RF
communication. It could be useful if the controller is
installed inside a metallic box. In that case, you need to
install the external antenna outside the metallic box.
Please respect the mounting to optimize sensitivity and avoid any dysfunction
Antenna must be installed:
- outside the metallic box
- in vertical position
- and at least at 50cm of metallic parts
If you have several antenna (several controllers), they must be placed at minimum 80cm of each other.
√Good
The active antenna must be mounted vertically.
Metallic Box
50 cm

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5. System configuration
5.1 System configuration without central unit
5.1.1 Standalone installation
Only one controller or multiple controllers without interconnection
Device 1
Device 2
Remarks
By pressing for 5 seconds, the
controller goes in RF pairing menu.
Bu using and select zone 1
(Red led), press to enter in
Pairing with thermostat mode.
Choose the channels with and .
Select/deselect the zone with .
Cursor is blinking green (Zone LED).
Selected zone is fix red.
Already paired zone is fix green.
Thermostats :
Put product in RF pairung mode (refer
to corresponding instruction manual)
If RF pairing is done, the leds of the
channels selected on the WFHC 02
HC RF must turn Green and the
thermostats must exit the pairing
mode.
Exit of the controller pairing menu:
Long press on
By pressing for 5 seconds, the
controller goes in RF pairing menu.
Bu using and select zone 3
(Red led), press to enter in
Pairing with a slave device mode.
All LEDs are blinking red.
Put the device in RF pairing mode.
When link is done WFHC 02 HC RF
and WFHC HCM 02 RF 230 return to
normal mode.
REMARK: only one WFHC HCM 02
RF 230 per installation
WFHC 02 HC RF
WFHC HCM 02 RF 230 (Option)
BT-WR02 RF (Option)
BT-D03 RF
BT-A03 RF

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By pressing for 5 seconds, the
controller goes in RF pairing menu.
Bu using and select zone 3
(Red led), press to enter in
Pairing with a slave device mode.
All LEDs are blinking red.
Put the device in RF pairing mode
When link is done WFHC 02 HC RF
and BT-WR02 RF return to normal
mode.
This configuration allows a remote
pump output.
REMARK: Instead of BT-WR02-RF,
you can also use BT-FR02-RF
By pressing for 5 seconds, the
controller goes in RF pairing menu.
Bu using and select zone 3
(Red led), press to enter in
Pairing with a slave device mode.
All LEDs are blinking red.
Put the RF repeater in RF Link mode
(press 3 s on the button)
When RF link is done, WFHC 02 HC
RF returns to normal mode and the
led on the repeater becomes green
fix.
5.1.2 Multiple controller’s installation
If there are multiple interconnected controllers in the installation, there are 1 main-controller and up to 3 sub-controllers.
The main controllers centralizes the information for the sub-controllers. If a WFHC HCM 02 RF 230 is used, it should be
paired to the main-controller.
•The main-controller propagates the Heat and Cool mode to the sub-controllers. This information could come from
the WFHC HCM 02 RF 230 or from a Master Digital thermostat according to the DIP4 and DIP5 (See 4.3)
•The main-controller could handle the pump signal of the whole installation according to DIP1 (See 4.3)
Main WFHC 02 HC RF
WFHC HCM 02 RF 230 (Option)
BT-WR02 RF (Option)
BT-D03 RF
BT-A03 RF
Sub WFHC 02 HC RF
Sub WFHC 02 HC RF
Sub WFHC 02 HC RF

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Device 1: Main Controller
Device 2: Sub-controller
Remarks
By pressing for 5 seconds, the
controller goes in RF pairing menu.
By using and select zone 3
(Red led), press to enter in
Pairing with a slave device mode.
All LEDs are blinking red.
By pressing for 5 seconds, the
controller goes in RF pairing menu.
Bu using and select zone 2
(Red led), press to enter in
Pairing with a master device mode.
All LEDs are blinking red.
When RF pairing is done, both WFC
H/C return to normal mode.
5.2 System configuration with central unit
The central unit centralizes the communication between controllers.
Device 1: WFC H/C RF
Device 2: BT-CT02 RF
Remarks
By pressing for 5 seconds, the
controller goes in RF pairing menu.
By using and select zone 2
(Red led), press to enter in
Pairing with a master device mode.
All LEDs are blinking red.
Put the device in RF pairing mode.
Select the first room.
When RF pairing is done, both WFHC
02 HC RF
and BT-CT02 RF exits the pairing
mode.
WFHC 02 HC RF
WFHC HCM 02 RF 230 (Option)
BT-D03 RF
BT-A03 RF
WFHC 02 HC RF
WFHC 02 HC RF
WFHC 02 HC RF
BT-CT02 RF
BT-WR02 RF (Option)

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5.3 Control a dehumidifier per room.
There are 2 ways to detect humidity:
•At controller level using the humidity detection input (See 5.5)
•At the room level if the thermostat embeds a relative humidity sensor
When humidity is detected, there are 2 ways to trigger dehumidifier.
•A global dehumidifier is triggered by the WFC HCM RF if the feature is activated on the WFC HCM RF
•A dehumidifier is triggered on the room level where the humidity is detected
For that last case, you need to pair a receiver (such as a BT-WR02 RF or BT-FR02 RF) on each zone of the controller in order
to trigger a dehumidifier.
Device 1: WFHC 02 HC RF
Device 2: BT-WR02 RF or BT-FR02
RF
Remarks
By pressing for 5 seconds, the
controller goes in RF pairing menu.
Bu using and select zone 4
(Red led), press to enter in
dehumidifier Pairing mode.
Choose the zones with and
(Z
ones are defined by paired
thermostat channels (for example if
TH1 = Z1, TH2 = Z2+Z3 and TH3 =
Z4+Z5+Z6, navigation proposes 3
zones to pair a dehumidifier on (Z1),
(Z2+Z3) and (Z4+Z5+Z6).
Select/deselect the zone with .
Cursor is blinking green.
Selected zone is fix red.
Already paired zone is fix green.
Put the device in RF pairing mode.
Exit of the controller pairing menu:
Long press on .
WFHC 02 HC RF
BT-D03 RH RF
BT-D03 RH RF
BT-WR02 RF to trigger a dehumidifier
BT-WR02 RF to trigger a dehumidifier
Room 1
Room 2

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6. Other Features
6.1 Anti Grip Feature
The feature is enable using DIP6 (See 4.3). If the valves
are not active during a week, a complete exercise is
triggered (actuator + pump outputs+ Heat/cool demand
sent to the WFHC HCM 02 RF 230).
6.2 Reset
In case of dysfunction, it may be required to reset the product to factory setting. By pressing simultaneously on , and
up to getting all zone LED in red, the controller reset is triggered and the product restarts.
Trouble shooting
Trouble #
Trouble
Description
Trouble shooting
Red or blue
blinking on Heat
and Cool led
Security detection
The contact of the security input is opened
If you not using a security
thermostat, make sure you
have installed a strap on the
security thermostat input.
Otherwise control the
temperature of the pipe (too
hot in heating mode, too cold
in cooling mode)
Red / Blue
blinking on Heat
and Cool led
RF Issue
The controller has lost the connection with
a RF device other than a thermostat
Check distance between
devices. If the controller is
installed within a metallic box,
use an external antenna
located outside the metallic
box.
Red
blinking on
Pump/Drier
Led
System error
Blue flashing on
Pump/Drier Led
Humidity configuration problem
Red fix on Data
led
USB error

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Red blinking on
1 zone
RF error with the
thermostat
RF blinking on
all zones
RF antenna error
7. TECHNICAL CHARACTERISTICS
WFHC 06Z 02 HC RF 24
WFHC 06Z 02 HC RF 230
WFHC 10Z 02 HC RF 24
WFHC 10Z 02 HC RF 230
Electrical protection
Class II with functional earth
IP Protection
IP30
Shipping and storage
temperature
-10°C à 50°C (14°F à 122°F)
Power supply
230 Vac ± 10% 50Hz
Output maximum load (2
outputs)
Relay : 5A
Actuators
230V /24V NC/NO up to 2.5W
Compatibility
•BT-A02 RF / BT-A03 RF
•BT-D02 RF / BT-D03 RF
•BT-DP02 RF / BT-DP03 RF
•BT-HCM02 RF / WFHC HCM 02 RF 230
•BT-CT02 RF
7.1 Dimensions & weight
WFHC 06Z 02 HC RF 24 and WFHC 06Z 02 HC RF 230

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WFHC 10Z 02 HC RF 24 and WFHC 10Z 02 HC RF 230:
Weight= xxxxxx
8. DIRECTIVES
Designation
Description
Link
Low Voltage Directive (LVD)
The Low Voltage Directive (LVD) (2014/35/EU)
ensures that electrical equipment within certain
2014/35/UE

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voltage limits provides a high level of protection
for European citizens, and benefits fully from the
Single Market.
Electromagnetic Compatibility (EMC)
Directive 2014/30/EU
The Electromagnetic Compatibility (EMC)
Directive 2014/30/EU ensures that electrical and
electronic equipment does not generate, or is
not affected by, electromagnetic disturbance.
2014/30/UE
Restriction of the use of certain
hazardous substances Directive
(RoHS) 2011/65/ EU
Directive on the restriction of the use of certain
hazardous substances in electrical and electronic
equipment.
2011/65/EU
Waste Electrical
& Electronic Equipment
Directive (WEEE)
The WEEE Directive (2012/19/EU) aims to
reduce the amount of waste electrical and
electronic equipment that ends up in landfill.
2012/1
9/EU
Ecodesign Commission
Regulation
Ecodesign requirements for local space heaters.
2015/1188
Radio Equipment Directive (RED)
2014/53/EU
The Radio Equipment Directive 2014/53/EU
(RED) establishes a regulatory framework for
placing radio equipment on the market.
2014/53/EU

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The descriptions and photographs contained in this product specification sheet are supplied by way of information only and
are not binding. Watts Industries reserves the right to carry out any technical and design improvements to its products
without prior notice.” Warranty: All sales and contracts for sale are expressly conditioned on the buyer’s assent to Watts
terms and conditions found on its website at www.wattswater.eu Watts hereby objects to any term, different from or
additional to Watts terms, contained in any buyer communication in any form, unless agreed to in a writing signed by an
officer of Watts
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