CLOSE CONTROL UNIT 50CJ
Support base for air supply via raised ﬂoor: - Bottom version (225 to 320 mm) - Top version (320 to 525 mm) Air supply plenum Acoustic plenum with sound trap Motorised damper on intake section Water leak detection Fire thermostat Hydraulic connection kit (chilled water and hot water coils) LON gateway C/O sensor
Electric heater - Fan-controlled operation - 2-stage control (3 kW electric heater excepted) - 2-stage or TRIAC control - Two high-limit safety thermostats with automatic and manual reset Hot water coil - 1-row coil made of copper tubes with aluminium ﬁns - 2- or 4-way control valve, ﬁtted and connected - Optional ﬂexible connections Humidiﬁer - Immersed electrode humidiﬁer with humidiﬁer information available directly on the Carrier CCU Controller: • • • • Stainless steel large surface area electrodes 3 kg steam per hour, nominal ﬂow rate < 3000 m3/h 8 kg steam per hour, nominal ﬂow rate < 3000 m3/h, Steam cylinder in a single easy to remove component • Filling solenoid valves • Drain pump • Electronics board for operation management • Diffusion jet • Water supply connection kit Operates on municipal water supply only (water conductivity of between 350 and 1250 μS and hardness 15 to 30°F). Do not use deionised or softened water.
753 Carrier CCU Controller - 160-character display showing the operating instructions, operating states, faults and solutions. Conﬁgurable controller. - Two fault levels - Monitoring of operating times - RS 485 output with Jbus/ModBus protocol - Can manage rotations, backups and top-ups between units - LON gateway - C/O sensor