Trane Performance Air Handlers Manual de Instalação descarregar pdf (Página 96)

96 CAH-SVX01B-EN

Routine Maintenance

Controls

On units that have been selected with the external communications port, both the operator display

and Rover service tool can be connected without shutting off the unit through the external

communications port. Remove the cover plate on the port and plug into the RJ-11 port for the

operator display or the RS 485 port for the Rover service tool. This enables continuous operation

of the Air Handling unit without disruption to the operating conditions of the unit. When servicing

of the unit is complete, replace the cover plate on the external port to eliminate the air leakage path.

Multiple Fans

When controlled in a bank of fans, these fan units must be controlled using a common control

signal, such as the duct static control signal, to modulate the fan speed.

Ultraviolet (UV) Light Maintenance

 WARNING

Hazardous Voltage and Exposure to Ultraviolet Radiation!

If UV lights are present in this unit, it contains components that emit high-intensity ultraviolet

(UV-C) radiation which can be harmful to unprotected eyes and skin. Disconnect all electrical

power, including remote disconnects before servicing. Follow proper lockout/tagout procedures

to ensure the equipment cannot be inadvertently energized. Failure to disconnect power before

servicing could result in death or serious injury.

The intensity of the ultraviolet energy emitted from the ultraviolet bulbs is dependent on the

cleanliness and age of the bulb. The surface of the bulb should be kept as clean as possible for

optimum intensity. Depending on the filtration level of the HVAC system and the general hygiene

of the building, periodic cleaning may be necessary. Before attempting any maintenance

procedures, always follow all warnings and cautions as detailed in this maintenance section.

Cleaning the Bulbs

Note: If bulbs are found to be broken, see the proper warning and cautions below regarding

broken bulbs and hazardous vapors.

1. Disconnect all electrical power to the unit and the ultraviolet bulbs.

2. Wearing soft cloth gloves and safety glasses, use two hands and firmly grasp the bulb at each

end.

3. Rotate the bulb 90 degrees in either direction and move bulb away from the fixture and out of

unit.

4. Wipe down each bulb with a clean cloth and alcohol. Avoid touching the bulb with bare hands

as skin oils can accelerate future glass soiling and degrade the bulb performance.

5. Carefully return the bulb to the fixture and rotate it 90 degrees in either direction until it is firmly

secured.

6. Close and latch all unit panels and reenergize power to the lights.

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Trane Performance Air Handlers Manual de Instalação Página 96