Watts WFHC HCM 02 RF 230 User manual

Water Floor Heating and Cooling module

WFHC HCM 02 RF 230

wattswater.eu

PPLIMWxxxxx

USER GUIDE GB

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 WFHC HCM 02 RF 230 is especially designed to control heating and cooling in combination with WFHC 06Z 02 HC

RF or WFHC 10Z 02 HC RF controllers. The targeted application is thus 2 pipes multi zones water floor heating and

cooling. This device is an option and only one module is possible per installation. It should be installed near the heating

and cooling sources whereas the WFHC 06Z 02 HC RF or WFHC 10Z 02 HC RF controllers should be installed near the

manifolds. The device is an option with 3 main value proposals:

•Separate heating and cooling signal

•Global dehumidifier control

•Global Heating & cooling mode control

2.1 Functions

It has integrated multiple functions:

•Wall mounted or mounted on DIN Rail

•Push-in cable connections with strain relief

•LED status indication and DIP switch for device setting

•H&C input (230V and volt free signal)

•Humidity input (Volt free contact) or water temperature measurement (Probe not supplied) for humidity detection

•Dehumidifier output

•Pump or boiler output (230V and volt free signal)

•Heating output and cooling output

•Internal RF antenna, optional external antenna

2.2 Box content

2.3 First installation

There are 2 ways to install the controller

•Wall mounted using 2 screws.

•Mounted on a DIN Rail

WFHC HCM 02 RF 230

3. PRODUCT DESCRIPTION

3.1 LED color meanings (In Red)

# Led

Heat and Cool and

RF led

(Red/Blue/Green)

Fix Red= Heating mode

Fix Blue=Cooling mode

Red/blue blinking = RF loss (In case of RF loss, the WFHC HCM 02 RF 230

switches in Heating mode and triggers the pump)

Green flashing= RF communication

Pump/Humidity/error

Led

(Red/Blue/Green))

Red blinking=NTC error

Blue blinking=Global humidity detection (In that case, the dehumidifier is

triggered)

Fix Green= Pump is triggered

Green/Blue blinking: Global humidity detection and pump activation

Green/red blinling: Pump is triggered and and NTC error

Red/Blue/Green blinking= Global humidity detection and pump activation and

NTC error

3.2 Push button (In Green)

5s press triggers the pairing process

10s press triggers the device reset.

3.3 DIP switch configuration (In Orange)

DIPswitch

number

Function

Value

(default: OFF)

Configuration

Description

DIP#1

Humidity

activation

OFF

Disable

See 4.4 and 4.5

Enable

DIP#2

H&C switch

OFF 2 seconds

See 4.2

5 minutes

DIP#3

H&C output

mode

OFF Demand

See 4.6

ON Mode

DIP#4

Humidity input

OFF

Free contact input

See 4.4

NTC sensor

4. INPUTS / OUTPUTS

4.1 Power Supply

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

The H&C mode is then propagate over all the system.

Only one device is the system should be able to select the

H&C mode (Master H&C device). Other possible H&C

switch signal sources:

•BT-CT02 RF Central unit

•H&C input on WFHC 06Z 02 HC RF or WFHC

10Z 02 HC RF controllers

•Digital thermostat configured as a Master H&C

thermostat in manual or automatic mode.

The DIP switch on the WFHC 06Z 02 HC RF or WFHC

10Z 02 HC RF controllers allows to select the device in

charge of the H&C mode (Master H&C device)

The time before H&C switch is defined by the DIP#2 (See

3.3)

•DIP#2=OFF. 2 seconds

•DIP#2=ON. 5 minutes

Power supply

Junction earth

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, which is sent by the WFHC 06Z 02 HC

RF or WFHC 10Z 02 HC RF controller to the WFHC HCM

02 RF.

The pump signal is always global, i.e. the pump is

triggered when there is a heating or cooling demand within

the system.

If a RF failure occurs, the pump is triggered all the time.

4.4 Humidity detection input

When DIP#1= ON (See 3.3) the product manages a

humidity detection input, with 2 possible types of signal

depending on DIP#4 (See 3.3):

•Water temperature sensor (NTC 10kΩ):

Require BT-D03 RF RH thermostat

•A humidity contact sensor

Humidity contact sensor

Format of the signal

The input is a free contact

No Humidity

Opened contact

Humidity detected

Closed contact

When humidity is detected by the sensor, the information is

sent to the WFHC 06Z 02 HC RF or WFHC 10Z 02 HC RF

controller which manages the information. Moreover the

dehumidifier output is triggered.

Water temperature sensor.

The water temperature measurement is sent to all WFHC

06Z 02 HC RF or WFHC 10Z 02 HC RF controllers to

compute the dew point for humidity control in cooling mode

(Please refer to the leaflet of WFHC 06Z 02 HC RF)

4.5 Dehumidifier output

When DIP#1= ON (See 3.3), the dehumidifier output (Free

contact) is triggered in 2 cases:

•When the Humidity input is triggered (See 4.4)

•When the WFHC 06Z 02 HC RF or WFHC

10Z 02 HC RF controller orders the

dehumidifier

4.6 Heating and cooling outputs

The behavior of the outputs (Free contact) is dependent of

the DIP#3 (See 3.3):

•DIP#3=OFF. The heating/cooling output is

activated when there is a heating or a cooling

demand in the installation

•DIP#3=ON. The Heating or cooling output is

triggered constantly following the mode of the

installation (heating or cooling)

In case of RF failure, the heating output is triggered all the

time.

4.7 External antenna

The distance between 2 devices with internal antenna should be at least 50cm.

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 WFHC HCM 02 RF

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

5. System configuration

The WFC HCM RF should be always paired to a WFHC 06Z 02 HC RF or WFHC 10Z 02 HC RF controller, even if you are

using a BT-CT02 RF. There is always only one WFC HCM RF per installation.

Device 1: WFHC HCM 02 RF 230

Device 2: WFHC 02 HC RF

Remarks

Put the device in RF pairing mode.

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 green.

When link is completed, WFHC 02

HC RF returns to the RF pairing menu

and WFHC HCM 02 RF 230 returns

to normal mode.

6. Trouble shooting

Trouble #

Trouble

Description

Trouble shooting

Red/blue blinking

on Heat and Cool

and RF led

RF Issue

The WFC HCM RF has lost the

connection with the WFHC 06Z 02 HC

RF or WFHC 10Z 02 HC RF controller.

Check distance between

devices. If the device is

installed within a metallic box,

use an external antenna

located outside the metallic

box. External antenna is also

useful for a long distance

between devices.

Usage of an external antenna

on the WFHC 06Z 02 HC RF

improves the RF

communication.

WFHC 02 HC RF

WFHC HCM 02 RF 230

BT-D03 RF

BT-A03 RF

Usage of a repeater paired to

the WFHC 06Z 02 HC RF or

WFHC 10Z 02 HC RF may

be required.

Red blinking on

Pump/Humidity

Led

NTC error

If DIP#4=ON, a water temperature

sensor should be connected on Humidity

input.

Check DIP#4 setting and

NTC

6. TECHNICAL CHARACTERISTICS

WFHC HCM 02 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 (5

outputs)

Relay : 5A

Compatibility

•BT-A03 RF

•BT-D03 RF

•BT-DP03 RF

•WFHC 06Z 02 HC RF 24, WFHC 06Z 02 HC RF 230,

WFHC 10Z 02 HC RF 24, WFHC 10Z 02 HC RF 230,

•BT-CT02 RF

6.1 Dimensions & weight

Weight= xxxxxx

7. DIRECTIVES

Designation

Description

Link

Low Voltage Directive (LVD)

The Low Voltage Directive (LVD) (2014/35/EU)

ensures that electrical equipment within certain

voltage limits provides a high level of protection

for European citizens, and benefits fully from the

Single Market.

2014/35/UE

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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