Water sensor A water temperature sensor can be provided as an option for NTC and WTC controllers. - For 2-pipe coil: The sensor is installed on a cooling/ heating water pipe (for change-over function). - For 4-pipe coil: The sensor is installed on a heating water pipe (for cold-draft function that prevents the operation of the unit when the heating network is off). In case of fan-coil unit delivered with an electrical box, the “water sensor” option is actually a switch that will be connected to the Carrier thermostat.
NOTE: - The water sensor option (switch) with electrical box is only available for 2-pipe coil without electrical heater. - A water probe can also be provided as an accessory only in order to use the cold draft function of the thermostat.
Air sensor Two air sensors, factory fitted, are available as an option for NTC and WTC controllers. They measure the air temperature at the inlet and/or at the outlet side. CO2 sensor For indoor air quality control, a CO2 sensor is available as an option for NTC and WTC controllers. The sensor is factory fitted at the inlet side.
Condensate pump (option)
The condensate pump option is designed to fit on the side of the unit drain pan. Electrical power supply 230V-50/60Hz. Condensate pump discharge performances:
Table of actual discharge (l/h) Total length of pipe (Ø int. 6 mm ) A Discharge head (B) 0m 2m 4m 6m 8m 10 m 5m 20 16 11.5 10 m 19 15 11 8.5 6 4 20 m 18 14 10.5 7.5 5 3.5 30 m 17 13.5 10 6.5 4 2.5