Maintenance And Cleaning; Maintenance Schedule; Cleaning Of Heat Exchanger; Refilling Of Coolant - Laird LA 5000 Operation Manual

Maintenance and Cleaning

Maintenance Schedule

9 Maintenance and Cleaning
Diligent maintenance is the prime factor for assuring an error-free and efficient operation of the unit.
Operating personnel can perform these tasks when properly trained.
9.1 Maintenance Schedule
Device Activity
Heat Exchanger Clean
Coolant container Check filling
Strainer Clean,
replace if
required
Table 11: Maintenance schedule

9.2 Cleaning of Heat Exchanger

Cooling capacity is heavily reduced, if the heat exchanger is polluted. The heat exchanger must be checked
for pollution regularly and be cleaned if required.
For cleaning the heat exchanger follow these steps:
1) Disconnect the unit from mains.
2) Remove the side panel and the unit cover.
3) Clean the heat exchanger using compressed air opposite to the direction of air entrance into the unit
(i.e. from the inside out). Be careful in order not to damage the plate fins.
4) Remove any pollution from the ventilation grid and the side panel using a vacuum cleaner.
5) Remount the unit cover and the side panel.
 The unit is ready for operation.

9.3 Refilling of Coolant

Since the cooling circuit is an open circuit, evaporation of coolant may occur. Thus the filling level of the
coolant container has to be checked regularly and coolant might have to be refilled as described on page 23.
Laird Thermal Systems s.r.o
28
Operation Manual, 387009851
Interval Criteria
Minimum weekly Plate fins and
(if required, daily) ventilation grids
not polluted
Weekly Coolant level well
above mesh
Every 3 Strainer
months,more undamaged and
often when clean
coolant polluted
Date: 08/09/2022
Version: 1.0
Tools Performer
Slotted screw Operating
driver 7 x 1 mm, personnel
compressed air,
vacuum cleaner
Visual inspection Operating
personnel
Metric AF24 Operating
wrench, cloth or personnel
vessel
Liquid-Air Cooling Unit LA 5000
387009381