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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 into account the latency of the actuator.
4.4 Contact for temperature limitation
This is a security input (Free contact).
The security input should be used on a controller with a pump.
When the contact is opened:
• The local pump output is stopped (even if DIP1 = ON, i.e. global pump on the controller).
• The actuators are closed.
• The Pump/Drier Led is red blinking.
• The Heat and Cool led is Red blinking (in heating) or blue blinking (in cooling).
• 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 security input is valid in both heating and cooling mode).
The product is delivered with a strap on the connector.
Please note that the pump of the WFC-03 HCM RF is triggered when at least one pump of the multiple WFC-03 HC RF installed
in the system is triggered.
Closed Contact No security detection
Opened Contact Overheating or
overcooling detection
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