WB9-RF

The WB9-RF is designed to be used in conjunction with compatible wireless thermostats. The outline dimension is 32cm x 14cm x 5.5cm

The WB9-RF provides central switching and is therefore ideally situated next to the underfloor heating manifold. 9 zones can be controlled as well as providing an output for a hot water cylinder. At the same time the WB9-RF offers the ability to operate a boiler or other heat source through a volt free output with changeover contacts, which gives you both a heat on signal and a heat off signal. Up to 9 actuators can be connected to each zone.

1, Mains Supply: Power supply into the WB9-RF, which should be fused at 5 amps, 230v AC 50/60Hz
2, Heat Enable: This is the main call for heat for the system
Boiler
This is the main call for heat for the system, there are 3 connections;
C = common
NO = normally open
NC = normally closed
Electrically this is a two-way switch, whatever supply is placed on the C connection, is fed to the NC connection when there is no call for heat. This is then switched to the NO connection when there is a call for heat. Most systems will use the common (C ) and normally open (NO) connections.
H/W
This output is used to control a hot water cylinder thermostat
C = common
NO = normally open
Electrically this is a two-way switch, whatever supply is placed on the common connection, is fed to the NC connection when there is no call for hot water. This is then switched to the NO connection when there is a call for hot water. Normally the NO connection would be wired to the hot water cylinder thermostat, then from there to the hot water valve, the valve auxiliary switch will then start the boiler/other heat source.
Most systems will use the common and normally open connections.
Zones 1- Zone 9
Zones outputs are clearly marked
L = live out to actuator or valve
N = neutral to actuator or valve
There are two connections live (L) and neutral (N), both terminals marked L are the same and both terminals marked N are the same. Each zone output is numbered, Zone 1 will respond to radio signals from the thermostat paired to zone 1, Zone 2 output will respond to thermostat numbered 2 etc.
Pump
Used for an underfloor heating manifold pump. Connections are clearly marked
L = live or phase 230v ac 50/60Hz
N = Neutral
E = Earth
When an under-floor heating zone sends a call for heat to the WB9-RF, the live & neutral output will supply 230v to the manifold pump . It is recommended that this is fed through a high limit switch placed on the heating manifold, to protect against mechanical failure of the manifolds temperature control.
Valve
Used for an underfloor heating manifold valve. Connections are clearly marked
L = live or phase 230v ac 50/60Hz
N = Neutral