SeQual INTEGRA E-Z - Basic Mechanical Layout; Theory of Operation: Air;Product Flow; Theory of Operation: Electrical System

Service Manual
Integra E-Z Oxygen Concentrators
Chart SeQual Technologies Inc. Page 5 of 34 P/N 2917
1.4. Basic Mechanical Layout
The Integra E-Z family of oxygen concentrators shares the same basic components and layout,
consisting of the compressor, ATF module, and POD assembly. These components are mounted to the
base and center frame and are housed in a two-piece cover. Although the plastic components are
common to all the Integra E-Z concentrators, refer to the appropriate model data sections concerning
parts replacement.
The Integra E-Z Oxygen Concentrator is manufactured in the following variations:
DESCRIPTION 115V / 60 Hz 220-240V / 50Hz
INTEGRA E-Z 5 LPM 6323A EURO
INTEGRA E-Z 5 LPM OM 6323A-OM EURO
INTEGRA E-Z 7 LPM 6323A-7
INTEGRA E-Z 7 LPM OM 6323A-OM-7
INTEGRA E-Z 10 LPM 6323A-10 6323A-10 EURO
INTEGRA E-Z 10 LPM OM 6323A-OM-10 6323A-OM-10 EURO
User Controls are located on the front panel of the POD assembly. On/Off button, “Plus”(+) and
“Minus”(-) flow rate control buttons, Service button (located behind the No Smoking logo), and the
Flow Indicator LCD display.
1.5. Theory of Operation
1.5.1 Air/Product flow
Ambient air is pulled in through the cabinet inlet filter. A cooling fan in the base expels hot air
through an opening in the bottom of the case. The compressor inlet filter and muffler assembly,
mounted on the center frame above the compressor, provides sound suppression and filtered air
to the compressor via a clear feed tube. Compressed air from the compressor runs through a
heat exchanger coil and into the inlet barb of the ATF module. Oxygen from the product barb is
routed to the pod assembly.
The POD assembly provides electrical power, oxygen flow control, flow rate indication, and
various monitoring functions depending on model. The oxygen outlet port is equipped with a
DISS fitting for connection of appropriate accessories such as a humidifier, cannula, etc.
1.5.2 Electrical
A two-prong plug can be inserted into any standard outlet of the appropriate voltage. All
Integra E-Z concentrators are double insulated and require no grounding.
WARNING
Do not modify or otherwise tamper with the electrical harness or attached
components without the express, written consent of SeQual Technologies. Doing so
could result in the loss of double insulation protection and create a potential hazard.
Line voltage is connected to a printed circuit board mounted in the POD assembly.
Transformers on the board reduce line voltage to low voltage for circuit board control, flow