Manual master DH 44 INOX (page 6 of 12) (English, German)

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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 dehumidier 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 [if present] 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 reduce its efciency.

DEHUMIDIFIERS

DESCRIPTION

All 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) [if present] or discharged by the

specic pipe. A micro-switch (6) stops the appliance when

the water in the tank reaches a set level [if present]. 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. This allow to extend 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 [if present]; when this light is on the appliance stops/

does not work.

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master DH 44 INOX Manual

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