Specifications

6
HECD–65 & HECD–130 Installation & Operations Manual
cylinder. This housing provides means of
high voltage feed to the electrode connecting
sockets and isolation from the water jacket.
End Cap:4. Machined cap provides end sealing
for the CD Cell and vertical electrode support.
Specialized conical springs in the cap cradle
the glass tubes and center the end within the
ground tubes.
Gaskets and Centering Disks:5. Die-cut
gaskets provide the seal between end housings
and the water jacket. An additional disk within
the HV housing provides centering support for
electrodes. These are all service items and
should be replaced as normal maintenance with
any module cleaning and service.
3E. Air Preparation & Oxygen Control
Air Compressors:1. Each generator
incorporates a set of air compressors designed
and sized to provide on-board oxygen
concentrators with the required air volume
flow rate and pressure. These are mounted to
a common tray secured in the bottom of the
enclosure. Compressors receive power through
power relays in the control unit. Compressor
on/off control is regulated by the PLC.
Oxygen Concentrator(s):2. Each oxygen
concentrator receives power indirectly from
the PLC through a power relay located in the
control unit (See Figure 3). The PLC monitors
oxygen system performance and will fault if
oxygen concentration falls below 80%. The PLC
regulates start/stop cycling to allow steady state
performance and purge cycles during start-up
and shut-down.
Output Solenoid Valve:3. The solenoid valve
is located on the ozone output supply line. It
isolates the generator during shut-down. This
solenoid valve receives power directly from
the PLC which controls its operation based on
oxygen performance, water back-flow, vacuum
and pressure in the system.
Flowmeter:4. Indicates the flow of oxygen
entering the ozone generator. Factory flow
settings are listed in the specifications for each
system. (See specifications on the inside of the
door.)
Oxygen Orifice:5. Sized to regulate oxygen
flow to the maximum capacity of the oxygen
concentrator(s). Located in the tubing going into
the oxygne sensor box.
Vacuum Regulator:6. Regulates the oxygen
flow into the generator module based on a
vacuum set point (factory set to 3-5 in Hg,
DO NOT ADJUST). When sufficient suction is
being developed by the injector(s) downstream
the regulator will allow full flow (as set by the
Orifice above) to pass. As suction is reduced,
flow is restricted proportionally to maintain the
vacuum set point. If suction is lost completely
flow is cut off.
Vacuum Gage:7. Displays the vacuum
developed at the vacuum regulator (above).
3F. Operator Interface Panel
The Operator Interface Panel consists of an LCD
display, a keypad, and indicator LEDs.
3F-1. Display
The display contains several lines of system 1.
information and configuration menus.
3F-2. Control Buttons
Use the Up and Down Arrow keys to scroll 1.
through the menu. Press the Enter key to view
sub-menus and the ESC key to go back up one
level.
In the “Settings” and “Maintenance” menus, 2.
choose a parameter by scrolling up or down
with the arrow keys. Press enter to edit the
parameter and use the arrow keys to increase
or decrease the setting value. Press the ESC
key when finished.
User Function keys are as follows:3.
Key Function
F1
Toggle Startup and Shutdown.
F2
Toggle Standby mode.
F3
Not used
F4
Acknowledge Error messages
F5
Not used