REMKO KWL 130 H - Manual (Page 5)

means of a variable injector valve
back to the evaporator where the
circuit begins again.
In heating mode, an air-cooled
chiller with heat pump functions
(HP-function) can take up heat
from the ambient air in the finned
condenser and give it off to the
operating medium. A reversing
valve switches the cooling circuit
function.
A return temperature dependent,
adaptive control, which ensures
the unit's operation and all of the
safety functions, is used to control
the cooling or heating. A potential-
free contact provides for remote
enabling.
The unit is designed for outdoor
installation. Under certain circum-
stances, it can also be used indoors.
The unit cooling circuit comprises
an evaporator, compressor, thermal
injection valve, condenser, con-
denser fan, fan control system and
The equipment is shipped in sturdy
transport packaging. Immediately
check the equipment on delivery
and make note of any damage or
missing parts on the delivery note
and inform the forwarding agent
and your contractual partner.
Claims under guarantee made at
a later date will not be accepted.
System description
Transport and
packaging
In cooling mode, the unit (an air
to water chiller) takes heat out
of the operating medium to be
cooled, water or a mixture of
water and glycol, within a closed
medium circuit in the evaporator
(plate heat exchanger) and gives
it off to the closed cooling circuit.
As a consequence of the heat
exchange, the medium cools and
the refrigerant in the cooling circuit
vaporises under low pressure.
The gaseous refrigerant
enters an electric compressor
(scroll construction) which
increases the pressure and the
temperature of the refrigerant.
The gaseous refrigerant is
led into a finned condenser,
which, as a consequence of the
heat exchange, condenses the
refrigerant under high pressure to
a liquid. The air emerging at the
condenser heats the environment.
The liquid refrigerant is led by high and low pressure controllers
Units with heat pump function also
have a reversing valve and a col-
lecting flask.
The medium circuit comprises
a circulation pump, expansion
vessel, safety valve and differential
pressure switch. A storage tank is
not mandatory.
Winter pressure controls, cabled
remote control, crank case heat-
ing, vibration dampers, heaters
for anti-freeze protection, external
medium storage tanks, glycol con-
centrate and a technical handover
are available as accessories.
7
Depending on the model and the
equipment, the system is only
intended to be used as a chilled
water system for the cooling or
warming of the operating medium
water or a water-glycol mixture
within a closed cycle.
Any other use or use in a way that
dose not conform with the defini-
tion above is considered an incor-
rect use.
The manufacturer/supplier as-
sumes no liability for damages
arising from the incorrect use of
the system or any part of it.
Intended use
The user dose so at their own risk.
Using the system correctly means
working in accordance with the
operating manual, installation in-
structions and complying with the
maintenance requirements.
5