Electrical Connections; First Commissioning; Maintenance - Daikin UATYA-BBAY1 Manual De Instalación, Uso Y Mantenimiento

The following is not recommended:
- the use of well and/or industrial water or water taken from cooling circuits and, generally, water that is potentially
polluted from a chemical or bacteriological standpoint;
- the addition of disinfectants or anti-corrosive compounds to water, as they are potential irritants.
For correct installation check that:
- a shut-off valve is installed;
- a mechanical filter is installed;
- the water temperature and pressure are within the admitted values.
6.8.4

Electrical connections

The electrical connections must be made using the supplied cables, in compliance with the wiring diagram.
6.8.5

First commissioning

Before starting the humidifier, check that it is in perfect working order, no water is leaking, and the electrical parts are
dry.
Do not energise the equipment if it is damaged or partly wet.
Check for throttling in the steam exhaust pipe.
After completing the installation procedure, purge the feed pipe for approx. 30 minutes and convey water directly
to the drain, without letting it go into the humidifier. This procedure is required to remove impurities and substances
resulting from the work processes which may clog the drain valve and cause foaming during the boiling phase.
6.8.5.1 Start the humidifier with the cylinder empty.
This step is performed automatically when the machine is started.
An extended period of time, up to a few hours, is required - which depends significantly on the conductivity of feed
water - before nominal production is achieved.
6.8.6

Maintenance

Periodic checks
After use for a long time or when waters rich in salts are used, the solid deposits forming naturally on the electrodes
may grow until they stick to the inner wall of the cylinder. If such deposits have particularly conductive properties, the
resulting heat may overheat the plastics and melt it, and in the worse case scenario the heat may form a hole from
which water may spill from the cylinder to the tray.
To prevent the above from occurring, monitor the deposits at the recommended intervals and check for deformations
or blackened parts on the cylinder wall, in presence of which the cylinder must be replaced.
If leaks are identified, cut off power to the equipment before touching the cylinder as water may be
energised.
The steam generating cylinder is the only component of the steam humidifier that requires periodic replacement.
The cylinder must be replaced whenever the build-up of lime scaling in the cylinder and/or the corrosion of the
electrodes, either partial or total, are such to prevent the transit of current as required.
This situation is signalled by an alarm that is given by the controller.
The frequency of the operation above depends on the feed water: the richer the water with salts or impurities, the
most frequent cylinder replacement.
Anyway, as plastic material ages and the electrodes get consumed, a steam cylinder has a limited life cycle, so we
recommend replacing it after max. 5 years or after max. 10,000 hours of operation.
We reserve the right to make changes without any prior notice.
UATYA
4P645202-2
Translation from original instructions
Packaged Rooftop
57