WATTS BT-WR02 H&C RF Wireless Wall Receiver
Product Information
The BT-WR02 H&C RF receiver is a wall-mounted receiver designed for controlling hydraulic heating regulation or cooling regulation. It features a proportional regulation with a time cycle of 10 minutes and hysteresis regulation. The heating relay can be used to control a boiler, valve, or electric radiator, while the cooling relay is used to manage an actuator for a cold water circuit. The receiver is compatible with thermostats from the BT-XX02 RF or BT-XX03 RF range, except for BT-A02 RF thermostats.
The receiver is delivered with 2 outputs in free contact mode.
To trigger the outputs in live contact, connect the live wire to 1 point of each connector using the cable supplied in the box.
Product Usage Instructions
- Make sure the power supply is connected to the receiver.
- Configure the thermostat’s address according to the thermostat leaflet.
- Refer to the thermostat leaflet to enter the thermostat in RF pairing mode.
- Ensure that the receiver’s RF LED is switched off and the thermostat exits the RF init mode to indicate correct pairing between the receiver and thermostat.
Presentation
The BT-WR02 H&C RF receiver is a Wall mounting receiver, specially designed to control hydraulic heating regulation or cooling regulation.
It embeds a proportional regulation with a time cycle of 10mn and a Hysteresis regulation:
- The heating relay is used to control a boiler in free contact or a valve or an electric radiator in live contact. (Available with all thermostats of the BT-XX02 RF or BT-XX03 RF range).
- The cooling relay is used to manage an actuator for a cold water circuit. (Not available with BTA02 RF thermostats).
This couple (thermostat BT-XX02 or BT-XX03 and receiver BT-WR02 H&C RF) can also be managed by a Central unit BT-CT02 RF to have a full control of your heating installation from one point. In that case, the receiver works always in automatic regulation mode for the heating/cooling switch. With the central unit, it is possible to pair the receiver in “Regulation/heating” mode and in “Hydraulic circuit” mode. It is not possible to pair the receiver in lighting mode or ON/OFF mode.
You can access to the general leaflet of the system on wattswater.eu.
With a BT-D02 RF/BT-D03 RF or BT-DP02 RF/BT-DP03 RF it is possible to configure the receiver in manual mode, heating mode, cooling mode or automatic mode (Please refer to the BT-XX02 RF or BT-XX03 RF leaflets).
In all cases, the receiver is making cooling only in comfort mode. All other modes (Reduced, anti-freeze, auto in Reduced) forbid the cooling regulation.
In case of set point modification, a delay of 5mn is always applied before switching from cooling to heating or heating to cooling.
In automatic regulation, a dead band of ± 1°K with timer is applied before switching from heating to cooling or from cooling to heating.
Compatibility matrix
 |
 |
 |
 |
|||
|
Pairing |
Regulation/ Heating | x | x | x | x |
| ON/OFF | ||||||
| Lighting | ||||||
| Hydraulic circuit | x | |||||
|
Regulation mode |
Heating | x | x | x | ||
| Cooling | x | x | x | |||
| Manual | x | x | ||||
| Auto | x | x | x | |||
The receiver is delivered with 2 outputs in free contact mode. To trigger the outputs in live contact, linked the live on 1 point of each connector using the cable supplied in the box.
Display description
| A B C D
(push button) (red/green) (red/blue) (orange) |
|
| / / / / OFF mode | |
| Short press / / / ON/OFF trigger with bip | |
| Comfort mode
/ Green fix / / with the 2 ouputs opened (without heating, without cooling) |
|
| Reduced mode
/ Green 50% / / with the 2 ouputs opened (without heating, without cooling) |
|
| Antifreeze mode
/ Green 10% / / with the 2 ouputs opened (without heating, without cooling) |
|
| / / Red / Heating demand (Heating output closed) | |
| / / Blue / Cooling demand (Cooling output closed) | |
| 10sec press / / Orange slow flash RF pairing with a thermostat
or the central unit |
|
| / / / Orange quick flash RF reception | |
| / / / Orange quick flash permanently RF signal lost | |
| / Red / green flash / / Error on Thermostat sensor | |
| 30sec press Orange Blue/red Orange Reset of the receiver | |
Technical characteristics
| Environment. (Temperatures) Operating /shipping et storage | 0°C – +40°C
-10°C to +50°C |
| Power supply | 230Vac 50Hz |
| Electrical protection | Class II – IP33 |
| Output Maximum Load | 2 x Relay 5A 250VAC
Up to 5A resistive – 250Vac 50Hz (2 wires L,N) |
| Radio Frequency & RF Receiving distance | 868MHz < 10mW (Bidirectional communication) Range of approximately 100m in open space
Range of approximately 30m in residential environment |
|
CE Directives Your product has been designed in conformity with the European Directives. |
EN 60730-1:2017 / EN 60730-2-9:2021 / EN IEC 61000-3-2:2019 + AMD1:2021 EN IEC 61000-3-3:2013 + AMD1:2017 + AMD2:2021 / EN 55014-1:2017
EN 55014-2:2015 / EN 55024:2010 + A1:2015 / ETSI EN 301 489-3 V2.1.1 ETSI EN 301 489-1 V2.2.3 / ETSI EN 300 220-1 V3.1.1 / ETSI EN 300 220-2 V3.2.1 EN IEC 63000:2018 / Regulation (EU) 2015/1188 / Regulation (EU) 2013/813 |
| Classification / Contribution | IV / (2%) |
| Regulation characteristics | Proportional Integral regulation or Hysteresis regulation. Regulation is defined by thermostat linked to each channel (see thermostat leaflet) |
Installation and RF pairing rules
Install and plug the receiver into the following guidelines to guaranty an optimal reception:
- The receiver must be put at a minimum distance of 50cm of all others electrical or wireless materials like GSM, Wi-Fi router
- Before wiring work related to the receiver must be carried out only when de-energized
- Connect your receiver to the power supply.
Following your installation an order of pairing must be respected for a correct RF initialisation.
Installation 1: Receiver BT-WR02 H&C RF + RF thermostat BT-XX02/BT-XX03
- The receiver must be put in RF pairing mode by 10sec pressing on the button.
- The RF LED should be orange slow flashing, indicating that the Receiver is now in radio configuration mode waiting for a thermostat configuration address.
- Please refer to the thermostat leaflet for enter the thermostat in RF pairing mode.
- The receiver RF LED must be switched OFF and the thermostat should exit the RF init mode to indicate correct pairing between both elements.
Installation 2: Receiver BT-WR02 H&C RF + RF Thermostat BT-XX02/BT-XX03 + central unit BT-CT02 RF
- Link first the thermostat with the smart home.
- The receiver must be put one time more in RF pairing mode by 10 sec pressing on the button.
- Then the RF LED should be orange slow flashing, indicating that the receiver is now in radio pairing mode waiting for a thermostat configuration address.
- Please refer to the Central leaflet for more explanation about the pairing mode “RF Init”. Pair only in heating mode or hydraulic circuit mode.
- The receiver RF LED must be switched OFF and the Central will show a message to indicate correct pairing between both elements.
Remarks:
- In case of loss RF communication (RF Alarm), the receiver will stop heating or cooling.
Watts Electronics S.A.S
B.P. N°10 – Z.A. des Tourettes, 43800 ROSIERES, France, T: +33(0) 471 57 40 49, F: +33(0) 471 57 40 90, www.wattswater.eu
Watts contacts in Europe: https://wattswater.eu/watts/contacts/
Documents / Resources
 |
WATTS BT-WR02 H&C RF Wireless Wall Receiver [pdf] User Guide BT-WR02 H C RF Wireless Wall Receiver, BT-WR02 H C RF, Wireless Wall Receiver, Wall Receiver, Receiver |