First Ignition; Periodic Maintenance - Master DH 26 Instruction And Maintenance Manual

HUMIDITY GAUGE
•DH 26
Positioned in the front of the appliance. It has a graduated scale
from 1 to 5. When the humidity gauge is set on the minimum
level (1), it means it will work until 80% of relative humidity is
obtained in the room. When it is set on the maximum level (5),
it means the appliance will work until 20% of relative humidity is
obtained in the room. When it is set on "CONT", the appliance
works continuously no matter what the relative humidity level is.
When it is set on "OFF" the appliance will never start (single pole
switch) (Fig. 4).
•DH 44-62-92
Positioned on the front of the machine. It has a graduated
scale from a minimum of 80% to a maximum of 20% of relative
humidity to be obtained in the room (Fig. 5).
HOUR METER
•DH 26
The hour meter is positioned on the rear of the machine and
indicates the number of hours the appliance has functioned
(Fig. 6).
•DH 44-62-92
The hour meter is positioned on the front of the machine and
indicates the number of hours the appliance has functioned
(Fig. 6).

FIRST IGNITION

Before starting the appliance it must have been in an upright
position (the normal working position) for at least eight hours
and failure to observe this instruction could cause irreparable
damage to the compressor.
After eight hours the dehumidifi er can be plugged into a 220-
240V single-phase grounded socket. The "POWER" red led must
come on which shows it is correctly powered. If the "WORKING"
led is off, turn the humidity gauge knob in a clockwise direction
until it comes on. The "DEFROST" led will also come on and
after ab0on tank must be emptied.
IF THE DEHUMIDIFIER DOES
NOT START OR DOES NOT
DEHUMIDIFY
First of all check the red "POWER" led is on, which shows it is
correctly powered, otherwise check it is plugged into the socket
correctly and that power arrives at the appliance. If after these
controls the light remains off, take the appliance to the retailer
where it was purchased.
Check the green "FULL" led is off and check the tank is empty.
Check the red "WORKING" led is on which shows the humidity
gauge has requested it to function. When the appliance starts
after a pause because the set humidity level has been reached
or because the tank has been emptied, the "DEFROST" led will
come on besides the two "POWER" and "WORKING" leds. They
will remain on for about 3 minutes when only the fan will be
working and the compressor will be off.
This cycle is repeated every 45 minutes on average to defrost
the coil (evaporator). If the "DEFROST" led remains on for more
than ten minutes take the dehumidifi er to the retailer where it
was purchased.
If the appliance seems to be working correctly with the
"WORKING" and "POWER" leds on but no water, or very little,
is produced, check that the relative humidity in the room is not
lower than 40-45%, alternatively take the dehumidifi er to the
retailer where it was purchased.
CONNECTION TO A
DISCHARGE PIPE
•DH 26
This dehumidifi er can be connected directly to a fi xed discharge
pipe, in which case the tank is removed to enable connecting the
pipe to the coupling.
For the connection, insert the supplied coupling in the right
side of the tank compartment (Fig. 7). Use the supplied rubber
stopper to block the microswitch lever in the left side of the tank
compartment (Fig. 8).
•DH 44-62-92
This dehumidifi er can be connected directly to a fi xed discharge
pipe, in which case the tank is removed to enable connecting the
pipe to the threaded female coupling (DH 92) and male coupling
(DH 44 - DH 62) (Fig. 9).
For the connection use a pipe with a ¾" female (DH 44 - DH 62)
or male (DH 92) coupling.

PERIODIC MAINTENANCE

The only maintenance that is required is cleaning the fi lter, the
frequency depending on how dusty the room is and how many
hours the appliance actually works each day.
In normal use it is suffi cient to clean the fi lter once a month, but if
the room is very dusty it should be cleaned more frequently.
The fi lter is cleaned by washing it under a jet of water in the sink,
fl owing in the opposite direction to the air fl ow: the perforated
front panel must face downwards so that the water pushes the
fi lter against the panel.
After a few years, the hot heat exchanger (condenser) could
need cleaning using compressed air and only a qualifi ed
technician must do this task. This cleaning improves the
appliance effi ciency and guarantees its long life.
2
GB