AHI Carrier Catalog | Page 753

CLOSE CONTROL UNIT 50CJ Accessories ■■ 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 Options ■■ 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. Control CONTROLS AIR TREATMENT ■■ 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 C A R R I E R 2 0 1 6 / 2 0 1 7 753