ecocool 100R
Page 25
Operating Manual
www.grantinstruments.com
8.0 Warranty information
When used in laboratory conditions according to this manual, this product is guaranteed
for THREE YEARS against faulty materials or workmanship.
Extended warranty for year five can be purchased by contacting our sales department at
[email protected].
9.0 Maintenance and service
9.1
Routine maintenance
The refrigerated bath contains a flammable refrigerant:
•
Do not use mechanical devices or other means to accelerate defrosting:
either turn the equipment off or set it to ambient temperature and wait until
all the ice has melted.
•
Do not damage the refrigerant circuit.
The over-temperature cut-out on the heating circulator should be checked periodically by
turning the over-temperature dial with a screwdriver anticlockwise until the alarm lamp
illuminates. The heating circulator
will also sound a buzzer and “Cut” will be shown on
the display. The over-temperature dial should then be turned to the maximum setting
without the alarm cancelling. The heating circulator should be powered off and back on
to confirm that the cut-out can be reset correctly. If the alarm lamp fails to illuminate
when the value indicated on the over-temperature dial is more than 10°C below the
current temperature as indicated by the main display, then the equipment should be
checked by a competent person.
The float liquid level protection should also be checked periodically by lowering the level
of liquid in the bath and noting that the equipment cuts out with the top turn of the heater
coil still immersed in the liquid.
When hoses are fitted to the pump they should be inspected periodically and replaced as
necessary to avoid hose failure.
No other routine maintenance is required.
9.2
Cleaning
Regular maintenance of the refrigerated bath is important to allow it to perform to its
specification and is required for validity of the warranty.
A removable grille enables easy access to the condenser for cleaning. Cooling power
will be reduced if the fins become clogged with dust. The condenser fins (see section
4.2.2, figure 3) should be examined monthly and, if necessary, use a vacuum cleaner
nozzle and soft brush to remove the dust.
Take care not to damage the condenser fins during cleaning. Always replace the
condenser grille following cleaning
Allow the equipment to cool before cleaning the condenser fins
Unplug the equipment from the mains supply before cleaning
