2. Turn the adjusting stem counterclockwise to lower the superheat.
3. Turn the adjusting stem clockwise to increase the superheat.
NOTE: Make no more than one turn of the stem at a time. Allow up to 15 minutes of fully loaded
compressor operation before checking superheat or making additional stem adjustments.
13.6 Inspect and Replace the Air Filters—600-mm (24-in.) Models
Check the air filter monthly to maintain efficient air distribution through the evaporator coil.
WARNING! Risk of contact with high-speed, rotating fan impeller blades. Can cause injury or
death. Open all local and remote electrical-supply disconnect switches, verify with a voltmeter
that power is off, and verify that all fan impellers have stopped rotating before working in the
unit.
1. Switch Off the Liebert CRV.
2. Open the rear panel by rotating the three locks with a screwdriver.
3. Wait until the fans stop rotating. When you open the first lock, you also open a safety switch
that cuts the input power, see Figure 13.1 below.
Figure 13.1 Air filter location and input power safety switch—600-mm (24-in.) models
ITEM DESCRIPTION
1 Safety switch
2 Air filter
3 Safety switch
To extract the filters, refer to Figure 13.2 on the next page:
1. Push up the upper filter.
2. Pull the bottom of the filter away from the unit.
Vertiv | Liebert CRV Installer/User Guide | 137
To Next Page
Loading...
