CSZ ZP 16, Installation, Operation & Maintenance Manual, Page: 77 / 88

MAINTENANCE WITH Q&A
Page 5-15
HUMIDITY SYSTEM MAINTENANCE
1. The standard steam generator requires no maintenance under normal use.
2. The outer casing of the demineralizer fi lter is transparent and the crystals
are visible. A new cartridge is violet or dark blue when water fl ows through
it. A spent cartridge will turn brown, orange, yellow or white. The cartridge
should be changed before it completely changes color. Spare cartridges are
available through the Cincinnati Sub-Zero Service Department.
CHANGING THE CARTRIDGE
1. To change the demineralizer fi lter cartridge, close the valve, and loosen the
large, white-locking ring on the bottom of the cartridge and rack. This will
reduce the pressure on the cartridge. Push the cartridge straight up and pull
the lower part of the cartridge out. Reverse the operation when replacing the
cartridge. SEE CAUTION.
2. Check the compression fi ttings on the humidity panel periodically for
tightness.
REMOVING THE ATOMIZING NOZZLE (FLUID CAP)
(If Equipped with Atomizer System Option)
1. Turn off the unit power.
2. Disconnect the recirculating water.
3. Open the humidity side pack cover.
4. Locate square plate with two compression fi ttings.
5. Remove the plate with the nozzle assembly attached.
6. Remove the retainer ring at the end of the nozzle assembly.
7. Gently pull the air cap from the fl uid cap.
8. Remove the fl uid cap from the body of the nozzle.
The demineralizer filter
should be replaced when
the color change reaches
3" from the bottom of the
cartridge. Damage will
occur if the cartridge is not
replaced when the color
changes from dark blue to
orange-brown.
Make sure that the rubber
gaskets at each end are
properly oriented before
tightening the locking ring.
Figure 1. Atomizing Nozzle Components
Do not overtighten
compression fi ttings.
Water pressure should
not exceed 10 PSI when
unit is equipped with an
atomizer. For optimal
operation of the atomizer
system, inlet water
pressure should not fall
below 10 PSI (69 kPa).
NOTE
LIQ.
AIR
Retainer Ring
Air Cap
Fluid Cap
Nozzle Body
CAUTION
!
CAUTION
!
CAUTION
!