HIGH-EFFICIENCY DUAL-FLOW AIR HANDLING UNIT 39HX
39HX features, as standard, an electric box equipped with a factory-programmed PLC and a hand-held micro-terminal.
39HX CONTROL Fan timer programming Control function Integrated clock: management in series Frost protection 4 events per year, and per week and per day By fresh air temperature control By exhaust air ﬂow pressure on heat recovery unit delta control (pressure sensor) Included X X X X X X X X X X X X X X X X X X X X X X X X X X X Options*
Alarms Control mode
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 Control of room temperature with a room terminal (Th-Tune) 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) Opening level control of mixing bypass (E model) Opening level control of mixing bypass (E model) Variation of the rotation speed of the rotary recovery unit (E model) 2 air ﬂow rate setpoints per air ﬂow Display of the air ﬂow rate Overpressure/negative pressure management Keeps the air ﬂow rate constant regardless of how fouled the ﬁlters are CO2 sensor Presence contact Contact External contact Air supply duct constant pressure operation ModBus RS485 protocol LON protocol KNX protocol ModBus TCP/BACNET IP protocol 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 Electric heater load shedding input Signal 0-10 V
Hot air and/or cold air production Free cooling operation Night cooling function Morning heating operation ECO recirculation operation Optimisation of output Conﬁguration of the air ﬂow rate Constant ﬂow rate operation Modulation of ﬂow rates operation
Single zone Multi zone
Management by CMS
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Option*: Requires the component to be selected as an option damper, coil, CO2 sensor, etc.
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