2. Check for air leakage prior to initiating
fl
ow through the dryer.
Repair all leaks prior to starting the dryer. To maintain dryer
performance, all leaks must be repaired. Most important are
leaks that might be identi
fi
ed on the outlet side of the dryer.
3. Verify the Purge Adjustment Valve is open.
4. Verify that the pre-
fi
lter drain is blowing freely to discharge
residual water from the system. If moisture is not being
discharged from the drain, rotate drain stem to the Automatic
position. Verify functionality of all drains ahead of the dryer.
5. Turn the
fi
eld disconnect switch to the ON position to apply
electrical power to the dryer. This will energize the Dryer
Controller. Use proper PPE when verifying that the voltage to
the Dryer Main Panel matches the voltage/phase listed on the
dryer Serial Plate. Do not apply electrical power to the ZPB
dryer until items 1 - 4 listed above have been veri
fi
ed. Do not
apply power to the dryer or activate the dryer for operation until
the air system checks are completed.
• For dryers equipped with the Moisture Load Control (MLC)
option, do not install the Dew Point Transmitter until the dryer
has been in operation for at least 24 hours and is in a steady
state, with the Blue Moisture Indicator appearing blue in
color. See the Warning and instruction regarding installation
of the Dew Point Transmitter. Enter the SETTINGS Screen
(3/3) within the Dryer Controller and press the +/- key to de-
activate the MLC function until the Transmitter is installed.
Failure to follow this procedure will cause damage to the Dew
Point Transmitter and will void the Sensor Warranty.
6. The dryer main
fl
ow valves and purge valves are designed
to operate in a pressure range of 80 - 100 PSI. On dryers
equipped in NEMA 4 con
fi
guration, use the adjustment dial and
gauge on the Control Air Filter/Regulator to adjust the control
air pressure to not exceed 100 PSI. Check functionality of the
drain on the Control Air Filter (NEMA 1) or Filter/Regulator
(NEMA 4) to verify discharge of all accumulated liquid.
7. Press the ON Button on the dryer Controller to initiate dryer
operation.
• Observe the dryer in operation to verify that the operating
sequence is functioning properly. The Dryer Controller will
automatically sequence the valves. Do not allow the dryer to
continue operation if problems are observed.
• Set the Regeneration Purge Flow when the left tower is in the
regeneration mode. Refer to SECTION 6.4 of this Technical
Manual.
• Gradually open the outlet air shut-o
ff
valve (if equipped) and
allow the compressed air system to pressurize slowly.
8. Verify that the compressed air system remains pressurized.
9. Verify the TECHNICIAN and MAINTENANCE settings within
the Dryer Controller. Refer to SECTION 6.9 of this Technical
Manual for further instructions.
• Verify that the
fl
oat drain(s) on the air compressor after-cooler
is operating properly. It is important to note that debris from
the air system piping may interfere with operation of the
drain(s) and it is the responsibility of the installer to verify drain
functionality after the dryer is placed into operation. Drain
maintenance or cleaning of system debris is not covered
under the ZPB dryer warranty. Improper drain maintenance
will result in damage to the desiccant beds and will void the
warranty.
• Following the initial 30 minute period of operation, the mu
ffl
ers
must be inspected and cleaned, or be replaced. De-energize
and depressurize the dryer before removing the mu
ffl
ers.
Disassemble and clean the removable insert inside each mu
ffl
er
core. Reassemble and reinstall mu
ffl
ers prior to resuming dryer
operation. Mu
ffl
ers are consumable items and are not warranted
other than for manufacturing defects.
• Monitor the operation of the ZPB dryer and contact your
ZEKS Compressed Air Solutions Distributor if any problems
arise during the startup process.
• The
fl
oat drains on the ZPB dryer must be inspected daily to
ensure proper dryer operation.
• For dryers equipped with the Moisture Load Control (MLC)
option, install the Dew Point Transmitter following no less than
24 hours of dryer operation and only when the Blue Moisture
Indicator appears blue in color. Enter the SETTINGS Screen
(3/3) within the Dryer Controller and press the +/- key to re-
activate the MLC function.
• For dryers equipped with the Fail-To-Shift option, verify that
the pressures indicated on the Tower Pressure Gauges
match the pressures displayed on the Dryer Controller.
• Verify that alarms are cleared. Verify (if wired) PurgeSync
™
function. See SECTION 6.8 of this Technical Manual.
10. Following Startup and full commissioning of the dryer,
complete and mail the ZPB Warranty Startup Card.
Long-Term Storage
If the ZPB dryer has been in storage for an extended period of
time, the Blue Moisture Indicator (BMI) may appear gray in color.
To return the BMI to its correct blue color, follow the instructions
above to properly start the dryer. Depending on the length of time
the dryer was in storage, it will take between 8 and 12 hours for
the beaded media in the BMI to return to its normal blue color.
If it is known that the ZPB dryer will not be put into operation
immediately, a Long-Term Storage option can be ordered from
the factory.
!
NOTICE
When opening the outlet valve, ensure drying tower gauge
maintains line pressure. Allowing the pressure in the dryer to
drop will result in an over
fl
ow condition and potentially cause
valves to stop functioning.
!
NOTICE
-80°F and -100°F dryer models require air
fl
ow through the
dryer to lower the pressure dew point to design levels. Failure
to permit air
fl
ow through dryer (deadheading) will result in
elevated outlet dew points. Once air
fl
ow is permitted, the
pressure dew point of the outlet air will gradually drop to
design levels.
8.0 INSTALLATION AND START-UP
ZEKS Eclipse
TM
90-5,000ZPB Desiccant Dryers
www.zeks.com
20
!
NOTICE
At initial start-up, observe the dryer through one or two
complete operating cycles, especially at the time of tower
shift. Verify that all systems are operating in proper order and
sequence. If the dryer is not functioning properly, contact your
ZEKS Distributor.
!
NOTICE
DO NOT FLOW COMPRESSED AIR THROUGH THE DRYER
WHEN THE DRYER IS OFF. The desiccant beds will become
fl
ooded with moisture and the Warranty will be voided.
