Cleaning; Checks; Operating Faults; Table Of Main Faults - VMI URBAN Manual De Instalación Y Mantenimiento

5.4.1 Cleaning

Operation that cannot be done by the user.
The machine must be thoroughly cleaned once a year (preferably in autumn), either as part of a
maintenance contract or when requested by the user.
•
Cleaning the machine
▪
Cut all power to the VMI® unit before intervening and make sure that it cannot be
accidentally reset.
▪
The Urban VMI® must be removed from the wall
▪
Open the machine's cover by removing the 4 screws.
▪
Remove the dust from the fan's wheel using a blower or a dry brush.
▪
Remove the dust from the resistors using a blower or a dry brush.
▪
Wipe the inside of the housing with a clean cloth.
▪
Close the cover again by screwing down the 4 screws.

5.4.2 Checks

To ensure the appliance remains effective, it is important to check the following points:
- The condition of the duct system. Clean or change it if necessary.
- The roof outlet or the suction grille must be clear and not obstructed by anything (nest,
leaves, etc.). If it is obstructed, clean it following the safety rules.
- The various air passages (openings, grilles, clearance under doors) must not be obstructed or
reduced in size.

6 OPERATING FAULTS

6.1 Table of main faults

Fault
Indicators flashing
Error code on
control unit
Blown air is too cold
Flow rates at
openings are too
low
Noisy product
Cause
The VMI® unit requires an
intervention
Product fault
Set temperature is too low
Incorrect product configuration
Leak in the system
Air flow network crushed or
excessive load loss
Incorrect product configuration
Filter clogged
Remedy
See the table of colour indications.
See error code table.
Increase the preheat temperature.
Review installation settings.
Seal the system better.
Check system.
Review installation settings.
Replace the filter.
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