Maintenance; Transport And Movement; Dismantling And Disposal - Master DH 25 Owner's Manual

WARNING: Before taking out the water tank,
turn OFF the main switch and take out the plug.
WARNING: After emptying , put the water tank
very carefully back in its bay so as not to dam-
age or interfere with the switch which is con-
nected to the float.

MAINTENANCE

WARNING: Before any maintenance opera-
tion turn OFF the main switch and take out the
plug.
To work efficiently the air filter and the internal parts of the humidifi-
er must be cleaned periodically. To clean the air filter apply com-
pressed air or wash with tepid soapy water.
To gain access to the internal parts unscrew the external casing
panels. The internal parts must be cleaned with an aspirator. Take
special care when cleaning the condenser's and evaporator's ribbed
batteries and the fan blades.

TRANSPORT AND MOVEMENT

WARNING: Before moving a unit turn OFF the
main switch and take out the plug.
The dehumidifier must not be transported in a horizontal position.
Having wound up the electrical cable, wheel the unit. must be tilted
as illustrated in Fig. 2.
To move the unit up or down a stairs or steep incline proceed as
illustrated in Fig. 3
Fig. 2
Fig. 3
TRANSPORT AND MOVEMENT

DISMANTLING AND DISPOSAL

DISMANTLING AND DISPOSAL
There is a pressurized refrigerant, R407C, in the refrigeration circuit
and oil in the compressor. For this reason, when a unit has come to
the end of its working life, it must not be dumped. It must be dist-
mantled and the various parts can be recycled and/or scrapped.
Refrigerants cannot be dumped. In order to extract R407C you
need:
1. A pliers like the one in Fig. 4.
WARNING: The following operations must be
carried out by qualified personnel.
2. Motorcondenser
3. Pressurized vessel
Proceed as follows:
• Connect the pressurized vessel to the motorcondenser, and the
motorcondenser to the pliers.
• Punch a hole in the compressor's exit tube and leave the pliers in
position.
• Open both motorcondenser taps, turn it on and empty the refriger-
ation circuit.
• Stop the motorcondenser and close both taps. Then close the tap
on the pressurised vessel.
• Remove the pliers.
• If the pressurized vessel is full it should be given to a company that
specializes in the disposal of waste fluids.
The welded joints on the compressor's entry and exit tubes should
be elimimated and lock bolts removed. Then drill a hole in the under-
side of the chassis, and pour the mineral oil into a vessel which
should be delivered to a company that specializes in the recycling
and disposal of oil.
The remaining metal parts which contain copper, aluminium and
steel can be recycled or scrapped.
MAINTENANCE
Fig. 4
5
GB