Table of Contents
Advertisement
2 - SAFETY INSTRUCTIONS
■ The air handling units are designed in compliance with recognised safety rules.
■ Unauthorised persons and the general public must be prevented from accessing this device.
■ These units must be used in perfect technical condition and within their field of application.
■ Only qualified technicians may work on the machine. They must have all the necessary Personal Protective Equipment
(PPE): glasses, gloves, safety shoes, hearing protection, dust mask, etc.
■ Check the following points before carrying out any work on the air handling unit.
- A 1 minute fan delay, no less, must be applied after the electric heaters and gas heating systems are shut down to allow
complete cooling. This delay must be adjusted as per the damper actioners rotary speed, but must not be less than 1
minute.
- Equipment lock-out in accordance with standard EN 60204/DIN VDE 0113.
- Warning: Depending on the options selected, there may be several different power supplies on the various units
(main unit, supply unit for electric heaters, humidifier). Make sure all power supplies are cut and locked out.
- All moving or rotating parts must be at a stop.
- Wait at least 15 minutes if using a frequency inverter (resultant voltage).
- All of the casings must be at atmospheric pressure before work can be carried out.
- Wait until the heat exchangers have cooled (heaters, steam, hot water coils).
- Make sure there are no foreign objects in the air handling units before starting them up.
■ For units that can be entered, an "internal handle" option is available to prevent accidental entrapment.
During any servicing operations, all the recommendations and instructions given in the maintenance brochures, on the labels or in the
instructions accompanying the equipment must be observed, along with any other applicable safety instructions.
■ Observe all the regulations in the safety codes.
■ To prevent any risk of accident, prohibit public access by clearly marking the work area.
■ Wear all the required Personal Protective Equipment (PPE).
■ Follow the handling instructions.
■ Handle heavy and bulky equipment with care when lifting, handling and setting down.
■ Technicians who install, commission, operate and service the unit must understand the instructions given in this manual and be
familiar with the specific technical characteristics of the installation site.
For your safety, we recommend the use of PPE (Personal Protective Equipment)
PROTECTION AGAINST ELECTROCUTION
Only personnel qualified in accordance with the IEC (International Electrotechnical Commission) recommendations must be allowed
to access the electrical components. It is particularly recommended that all the electrical supplies to the unit are switched off before
any work is carried out. Cut the main power supply using the disconnect switch or circuit breaker.
WARNING:
The control system includes electronic components. These may cause or be subject to electromagnetic disturbance if they
are not installed and used in accordance with these instructions.
Before carrying out any work on the frequency inverters (heat recovery wheel, etc.), disconnect the power supply and ensure
that these are not live. After disconnection, you must wait 5 minutes before starting work (necessary for the capacitors to
discharge).
5
Advertisement
Table of Contents
