CLOSE CONTROL UNIT 50CO
Features and advantages
■■ Casing
-- Double-wall construction (M0/A1 fire resistance)
-- Detachable pre-coated grey (RAL 7035 and
RAL 7024) panels
-- 0.8mm painted pre-coated exterior panel
-- 25 mm mineral wool insulation
-- 0.8 mm galvanised interior panels
■■ Filtration
-- Filter cells: G4, F7
-- Holds filter cells pressed against the counter frame
with the gasket directly on the filter cells
-- Filter restriction monitored by an analogue sensor.
Restriction values displayed by controller
■■ Cooling coil section
-- Copper tubes, aluminium fins
-- Aluminium or stainless steel condensate drain pan
-- Stainless steel coil casings (option)
-- Fitted and connected two-way or three-way control
valve
■■ Ventilation section
-- Plug fan coupled with an induction motor or an
electronically commutated (EC) motor
-- EC motor: fan speed adjusted by a potentiometer or
automatically by the controller based on room loads
(system air contro l)
-- The fan also has a ModBus card which allows faults and
settings such as the actual power input, current, rotation
speed, etc. to be transmitted
■■ Electrics box
Electrical power and control box consisting of:
-- Power supply (three phase, 400 V, earth)
-- Main disconnect switch
-- Protected transformer (three phase, 400 V, 50 Hz)
-- All electrical components protected and controlled by
a circuit breaker and contact switch
-- Automatic CARRIER CCU Controller
-- Monitoring of return air dry-bulb temperature
-- Monitoring of return air humidity during supply or
dehumidification
-- Options: water leak detection
-- Remote control and fault summary contact
■■ Accessories (options)
-- Free cooling box
-- Support base for delivering supply air into a raised
floor
-- Cased base with grille or damper
-- Supply plenum
-- Motorised intake damper
-- Fire thermostat
-- Supply air low-limit sensor
-- LON gateway
-- Management of pressure in raised floor
-- Changeover thermostat
Controls
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7
CONTROLS
AIR TREATMENT
■■ CARRIER CCU Controller control system
-- 160-character display shows operating instructions,
operating states, faults and solutions. Configurable
controller.
-- Two fault levels
-- Monitoring of running times
-- RS485 output with a Jbus / ModBus protocol
-- Master/slave operation possible
-- LON gateway (optional)
-- Management of pressure in raised floor (optional)
-- Changeover thermostat (optional)
-- Bus management between the centrifugal plug fan
and the controller
-- Transmits fan faults and settings such as the actual
power input, current, rotation speed, etc. to the
controller
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