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7. FUNCTIONS
- Heat Cool input signal (Master mode switch 1 OFF)
When BT-HCM02 RF is in master mode for Heat/Cool, it decides if system is in heating mode or in cooling
mode according to H&C imputs:
o Free contact input (manual switch or automatic from heat pump):
if contact is opened then system is in heating mode
if contact is closed then system is in cooling mode
o NTC Sensor 10K connected on the water inlet:
if temperature > 24°C, system is in heating mode
if temperature < 20°C, system is in cooling mode
Heating or cooling switch is delayed 2sec / 5minutes depending on the state of DIP switch 3.
For system initialisation, when you are using a water sensor, unplug the sensor to trigger the system in the
proper mode, then plug the sensor.
- Heat output: (free contact)
Heat relay is closed when system is in heating mode.
- Cold output: (free contact)
Cold relay is closed when system is in cooling mode.
- Dehumidifier output: (free contact)
Humidity relay is closed when
o system is in cooling mode
o AND there is a detection of humidity on at least one of thermostat with humidity sensor BT-D(P)02-
RF RH (refer to its instruction manual to have more information about humidity configuration)
o AND humidity function is activate (DIP switch 2 OFF)
- 230V Pump output: (live contact)
230V relay is closed when there is at least one demand on the system, a typpical application to this output
is Pump output.
Note: to use this output, installer needs to strap the “SECU” connector
8


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