Manual master DH 44DV (page 10 of 72) (All languages)

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THE UNIT IS SEALED AND CONTAINS

FLUORINATED GREENHOUSE GASES

COVERED BY KYOTO PROTOCOL.

THE “GWP” IS LISTED IN THE “TECHNICAL

SPECIFICATIONS TABLE”.

SAFETY WARNINGS

The dehumidier must always be connected to an

efciently grounded socket. As with all electrical

appliances, failure to observe this safety measure is a

potential source of danger that the constructor does not

respond for in any way.

The appliance must only be dismantled by a qualied

technician using the appropriate tools.

The appliance must always be in an upright position

when it is plugged into an electric socket and must not

be handled with sharp movements. Any water leaking

from the tank or tray could wet the electric parts with the

obvious risk of danger, therefore the dehumidier must

always be unplugged before it is moved and the tank

emptied before it is lifted.

Should any water be spilt due to sharp movements, the

dehumidier must remain turned off and unplugged in an

upright position for at least eight hours before it can be

turned on again.

This dehumidier takes the air in from the rear and expels

it through the front grid, and therefore the rear panel

which holds the air lter must be at a distance of at least

15 centimetres from the wall.

The appliance must not be turned on in conned spaces

where the expelled air from the front grid Is unable to

circulate freely, however the side panels can be placed

next to a wall without affecting the appliance efciency.

This dehumidier has been constructed to the strictest

safety standards. No sharp items (such as screwdrivers,

knitting needles or similar objects) must be introduced

into the front grid or the opening in the rear panel when

the lter is removed as that is extremely dangerous for

human safety and can damage the appliance.

Do not wash the appliance with water; just use a damp

cloth after unplugging it from the socket.

Do not cover the front grid with clothes or other items

as this could damage the appliance and be a source of

danger.

Clean the lter periodically; on average once a month but

if the dehumidier is used in very dusty surroundings

the lter should be cleaned more frequently. Refer to the

specic lter cleaning chapter. When the lter is dirty the

expelled air is hotter than normal and can damage the

appliance and reduces its efciency.

DEHUMIDIFIER

DESCRIPTION

All portable dehumidiers use cooling cycles with compressor.

The appliances are described below.

FUNCTIONS

This dehumidier is an appliance working with a cooling cycle

based on the physical principle whereby the air is exposed

to a cold surface and wets it, giving off humidity as drops of

condensation, or ice if the room temperature is very low.

In practice, a cooling machine keeps a coil cold that the air is

passed through and therefore the air cools down and has the

humidity removed. The air then passes through a hot heat

exchanger and is heated up to return to the room dehumidied

and slightly warmer than at the beginning.

Refer to the diagram (Fig. 1-2):

The air is taken in from the rear of the appliance and passes

through the lter (1), the cold aluminium coil (evaporator) (2),

the hot exchanger (condenser) (3), the fan (4) and nally the

dehumidied air is expelled into the room through the front grid.

The condensed water is collected in the tank (5). A microswitch

(6) stops the appliance when the water in the tank reaches a

set level. The moisture gauge (7) enables the dehumidier to

work when the room humidity is higher than the required level.

An electronic board (8) controls the defrosting and prevents any

dangerous starting of the compressor (9) too soon and delays

its ignition.

These appliances have hot gas defrosting devices installed,

with a solenoid valve for the hot gas bypass, a special electronic

board (with double relay) and a defrosting thermostat.

This defrosting system is exclusive to our appliances: in

practice, a system with a thermostat and electronic control that

uses the hot gas bypass only for the time that is strictly needed,

which lengthens the life of the appliance and reduces the time

of the hot gas phase.

CONTROL PANEL

The control panel is in the front of the appliance and contains

four lighted signals (Fig. 3):

•DEFROST (red led): Comes on when the compressor is on

pause or the rst ignition is delayed or during the defrosting

phase.

•WORKING (red led): Comes on when the humidity gauge

requests the appliance functions.

•POWER (red led): Comes on when the appliance is powered.

•FULL (green led): Comes when the condenser tank is full;

when this light is on the appliance stops/does not work.

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master DH 44DV Manual

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