HYDRONIC FAN COIL
COMMUNICATING CONTROLLER (NTC)
Controls
NTC
Network communication
Description
• The NTC communicating controller can be connected on an
RS 485 bus, using the Carrier
Comfort Network (CCN) protocol.
• Units equipped with the NTC
controller can be part of the
Aquasmart Evolution system.
Carrier offers one of the market’s most sophisticated and complete communicating
controllers for hydronic fan coil ranges, the NTC controller, that is compatible
with the full Carrier fan coil range.
For the customer and installer the same controller simplifies and eases
installation and service operations whilst covering a wide range of hydronic
system types and applications.
The controller can be applied and function as either a standalone control, as
part of a larger CCN system application, or at the heart of a Aquasmart system
functioning with the Aquasmart Touch Pilot System Manager.
Advanced functions
• Low Energy Consumption (LEC)
variable speed control.
• The NTC controller can drive the
fan speed continuously within a
configurable range for optimal
thermal and acoustic comfort.
• Hydronic control - The NTC
controls both floating and fixedpoint value actuator types (230 V
on-off and 230 V three point).
• Demand controller ventilation
(DCV) - On fan coils equipped
with CO2 sensors and fresh air
dampers, the NTC controller
can adjust the amount of fresh
air admitted to the room, as
required by the occupants.
• IAQ management - The NTC
controller can control all
features related to Indoor Air
Quality that are included in
Carrier terminal fan coil units.
Features
• The NTC controller controls and optimises the operation of hydronic terminal
fan coil units. It is a microprocessor-based CCN (Carrier Comfort Network)
compatible communicating controller with energy-saving algorithms.
• Energy-saving algorithms manage water valve operation and fan speed
control simultaneously to ensure minimum energy consumption whilst
maximising comfort conditions for the occupant.
• Factory-installed on terminal fan coils
The NTC controller is factory-installed on the terminal fan coil; the assembly
is also factory-tested. As a result, field installation is extremely simple.
• A wide range of user interfaces
Depending on the application, two user interface types can be selected:
- a simplified wired analogue user interface (SUI) that can be wall-mounted
- a wired communicating user interface (CRC2) that can be wall-mounted or
incorporated in compatible terminal fan coils (42N)
- an infrared user interface (IR2) for use together with a wall-mounted
infrared received or a receiver incorporated on compatible terminal fan
coils (42GW)
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