REMKO ETF 400 - Manual (Page 6)

Condensation heat
The Energy transferred to the air
from the condenser consists of:
1. the amount of heat derived
beforehand in the evaporator.
2. the electrical drive energy.
3. the condensation heat released
by the liquefying of the water
vapour.
Energy must be supplied when
liquid is converted into a gas.
This energy is designated
as evaporation heat. It does not
cause any increase in temperature,
but is required to convert a liquid
into a gas. Conversely, energy
is released when gas is liquefied,
this is designated as condensation
heat.
The amount of energy from
evaporation heat and condensation
heat is the same.
For water, this is:
2250 kJ/kg (4.18 kJ = 1kcal)
From this it is evident that
the condensation of water vapour
causes a large quantity of energy
to be released.
If the moisture that
it is to be condensed is not
introduced by evaporation
in the room itself, but
from outside, e.g. through
ventilation, the condensation
heat released contributes
to the heating of the room.
With drying operations, a heat
cycle is created, whereby heat
is consumed for evaporation
and released for condensation.
When dehumidifying fed air,
a larger contribution of heat
is created, which manifests itself
as a temperature increase.
Generally speaking, the time
required for the drying
process is not only dependent
onthe output of the unit, but
isdetermined to a greater extent
by the speed at which the material
or building section loses its
moisture.
Safety notes
The units were subjected to exten-
sive material, functional and qual-
ity inspections prior to delivery.
However, dangers can emanate
from the units if they are used
improperly or not as intended by
untrained personnel!
The following notes must be ob-
served in full:
■ The units may not be installed
or operated in explosive envi-
ronments
■ The units must not be installed
or operated in atmospheres
containing oil, sulphur, chlorine
or salt
■ The units must be installed up-
right and in a stable position
■ The units must not be exposed
to direct jets of water
■ An unobstructed air inlet and
air outlet must be guaranteed
at all times
■ The air-inlet grille must always
be kept free of dirt and loose
objects
■ The units must not be covered
during operation
■ Never stick foreign objects into
the units
■ The units must not be trans-
ported during operation
■ The units must only be trans-
ported when the condensate
container is empty and the
evaporator is dry
■ All electrical cables on the out-
side of the units must must be
protected against damage (e.g.
by animals etc.)
■ Before each change of location,
the condensate container must
be emptied
ATTENTION
Extensions to the connection
cable must only be conducted
by authorised specialist
electricians, taking into
consideration the unit power
consumption, cable length
and local use.
!
ATTENTION
Work on the refrigerant
system and on the electrical
equipment must only
be conducted by a specially-
authorised specialist.
!
6
REMKO ETF 400