H50/150 Smart
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User Manual
Page 28 of 32
Preventive Maintenance
RESERVOIR CLEANING
Periodically inspect the fluid inside the reservoir. If cleaning is necessary, flush the reservoir with a cleaning fluid
compatible with the circulating system and the cooling fluid.
The cooling fluid should be replaced periodically. Replacement frequency depends on the operating environment
and running time.
Before changing the cooling fluid ensure that it is at a safe handling temperature.
When fittings must be changed or the chiller is not used for a long period, be sure to drain all liquid out of the unit.
Shut down the unit at first, then put a cup on the ground and disconnect the fitting from the instrument cooled.
Then let the fluid in the tank flow out into the cup and disconnect the fitting on the chiller. Before positioning the
unit in the storage be sure the drain tap is closed.
CONDENSER CLEANING
For proper operation, the unit needs to pull a substantial amount of air through a condenser. A build-up of dust or
debris on the fins of the condenser will lead to a loss of cooling capacity.
The lower front of the unit has a one-piece grid assembly. Gently remove it using hands. Use care not to scratch
the paint.
Periodic vacuuming of the condenser fins is necessary. The cleaning frequency depends on the operating
environment. After the initial installation we recommend a monthly visual inspection of the condenser. After several
months the cleaning frequency will be established.
Use care when cleaning the condenser fins as they can easily bend.
FILTER REPLACEMENT
If the water circuit of the unit is equipped with a filter system, please change the filter cartridge periodically.
