AHI Carrier Catalog | Page 713

HIGH-EFFICIENCY DUAL-FLOW AIR HANDLING UNIT   39HX Control 39HX features, as standard, an electric box equipped with a factory-programmed PLC and a hand-held micro-terminal. 39HX CONTROL Control function Fan timer programming Included Integrated clock: management in series 4 events per year, and per week and per day X By fresh air temperature control By exhaust air flow pressure on heat recovery unit delta control (pressure sensor) X Frost protection Alarms Control mode Hot air and/or cold air production Free cooling operation Night cooling function Morning heating operation ECO recirculation operation Optimisation of output X X X X X X X X X Contr ol of room temperature with a room terminal (Th-Tune) X Gradual action on the 2- or 3-way control valve on the hydraulic coil Gradual action on the electric heater TRIAC On/Off action on the various stages of the electric heaters Rotary heat exchanger stop (E model) Open by-pass on counter-flow plate recovery unit (V, H & C models) Rotary heat exchanger stop (E model) Open by-pass on counter-flow plate recovery unit (V, H & C models) X X X X X X X Opening level control of mixing bypass (E model) X Opening level control of mixing bypass (E model) X Variation of the rotation speed of the rotary recovery unit (E model) X Configuration of the air flow rate 2 air flow rate setpoints per air flow Display of the air flow rate Overpressure/negative pressure management X X X Constant flow rate operation Keeps the air flow rate constant regardless of how fouled the filters are X CO2 sensor Presence contact Contact External contact Air supply duct constant pressure operation ModBus RS485 protocol LON protocol KNX protocol X X X X X X X Signal 0-10 V Single zone Modulation of flow rates operation Multi zone Communicating mode Management by CMS ModBus TCP/BACNET IP protocol Miscellaneous AIR TREATMENT Safety X X Languages supported (French/English/German/Dutch/Spanish/Italian) Integrated temperature sensors (*3: fresh air supply and extraction, exhaust air extraction) Integrated pressure sensors (*4: fresh air and exhaust air filter fouling level, fresh air and exhaust air fan) Damper control Information provided to the user via the hand-held micro terminal Contact for controlling the pumps for the hydraulic coils (with operating control) Contact for controlling an external outdoor heat production system (boiler, etc.) Contact for controlling a humidifier X Electric heater load shedding input X X X X X X X X CONTROLS Monitoring of sensor status Monitoring operation values (thresholds) Operating control of EC fan motor assemblies via a fault summary contact Control of filter fouling (automatic calculation of "Dirty filter" and "Blocked filter" alarm thresholds) Main and ordinary fault summary Fire monitoring (potential free (dry) contact available (normally closed)) Management of alarms and log (100) Control of return air or supply air temperature Regulated temperature control based on outdoor temperature Options* Option*: Requires the component to be selected as an option damper, coil, CO2 sensor, etc. C A R R I E R 2 0 1 6 / 2 0 1 7 713