Start-Up; Preliminary Checks; Removing The Element Centring Spring (Only For Three-Phase Models) - Carel heaterSteam User Manual

9. START-UP

IMPORTANT WARNING: on completion of the installation procedure, drain the supply tubing for around 30 minutes
by passing water directly through the tubing and without introducing it into the humidifier. This will allow the
elimination of any scoria and processing residues which may cause the formation of foam during the boiling.

9.1 Preliminary checks

Before starting the humidifier, check that:
the hydraulic and electrical connections are made and the steam distribution
system is configured according to the instructions contained herein;
the shut-off tap for water into the humidifier is open;
the power fuses are installed and in tact;
terminals 7I and 8I are connected by jumper or connected to the remote
ON/OFF contact, and that the latter is closed;
the probes or the external command device are correctly connected (and that
the ground of these devices is electrically connected to the ground of the
main control board);
the steam emission tubing is not choked;
in the event of ducted humidification, the operation of the humidifier is slave
to the operation of the air fan (replacing or in series with the remote
ON/OFF contact);
the distributor condensation return tubing is installed and free;
the drain tubing is correctly connected and free.
Prima dell'avviamento verificare che l'umidificatore sia in perfette condizioni, che non vi siano perdite
d'acqua e che le parti elettriche siano asciutte.
Non applicare la tensione se l'apparecchio è danneggiato o anche parzialmente bagnato!
9.2 Removing the element centring spring
To prevent the elements in three-phase models hitting each other or against the internal wall of the cylinder and thus
damaging the appliance, due to vibrations or bumps during transport, the heating elements are factory-fitted with a centring
spring which has no function during the operation of the appliance.
As the centring spring may hinder the removal of lime-scale from the elements and diminish the interval between cleaning
cycles, the spring should be removed before the initial start-up.
To do this, remove the cylinder by following the relative instructions (see Maintenance of the cylinder-boiler).
9.3 Start-up
After having closed the power switch to the humidifier, turn the appliance on by moving the
rocker switch (coupled with the DRAIN button) located in the bottom right of the frame, to
the I position.
The start-up sequence is thus initiated. This includes the initial phase, the autotest phase,
and finally, the actual operating phase.
According to the model of the humidifier's control module, the start-up sequence is
signalled by the illumination of the LEDs on the control panel, as described in the following
chapter.
Carel code +030221761
(only for three-phase models)
29
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
Fig. 9.1.1
ON
Fig. 9.3.1