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8. OPERATION AND MAINTENANCE
These instructions serve as an aid for professionals, operators of air handling units, or investors who are assumed to already have experience
with the operation of air conditioning systems. The instructions are especially important for the start-up period of the entire system, when more
detailed operating regulations are not available. The purpose of these instructions is to allow temporary operation of air handling units and to
prevent possible operator errors. Final operating regulations must be prepared in accordance with the operating regulations of the entire building.
8.1 SAFETY INSTRUCTIONS FOR OPERATION AND MAINTENANCE
Follow all safety recommendations to prevent damage to the fans or personal injury. The technical characteristics of this manual must not be
changed. The motors of the unit must not be changed. The unit can be connected to a three-phase AC mains supply 400 V / 50 Hz or single-
phase 230 V / 50 Hz networks for sizes DV 500, DV 800 and DV 1200. For installation in accordance with EC regulations, the units may only be
connected to the mains in accordance with the applicable regulations. The device must be installed in such a way that, under normal operating
conditions, it cannot come into contact with any moving or live part. DUOVENT
®
COMPACT DV units comply with the applicable regulations for
electrical equipment.
Before carrying out any work on the device, always disconnect the device from the power supply.
Always use the
appropriate tools. Use the device only for its intended purpose.
8.2 EQUIPMENT SERVICE
To maintain the efficiency of DUOVENT
®
COMPACT DV 500 to 7800 units, regular maintenance is required.
8.2.1 FILTER REPLACEMENT AND MAINTENANCE
The filter replacement interval can vary considerably depending on the operating conditions and where the unit is located (the level of outdoor
pollution depends on the location near industrial areas, roads or highways, forests or agricultural areas). The filter change interval ranges
generally from 6 to 12 months. After unlocking the locks, open the relevant door of the unit. Pull together to remove and then replace all filters on
the unit.
Plate filter dimensions:
CAUTION!
•
The unit must be disconnected from the power supply
!
The unit service switch is locked in OFF position.
•
The fan impellers shall not rotate!
•
Electric heater bars must be cooled to min. 30 °C!
Ventilation unit with heat recovery
DUOVENT
®
COMPACT DV
