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Asset Type
Sequential Compression Device (SCD)
Manufacturer
Model
Manual Reference
Kendall SCD 700 Sequential Compression System Operation and Service Manual
Manufacturer Recommendation / AEM Status
The manufacturer-listed preventive maintenance items for the Kendall SCD 700 Series are limited and specific.
Manufacturer-Listed PM Items
Inspect and clean the fan filter and exhaust filter. Perform the Basic Functional Test. Keep the fan filter and exhaust filter clean. Do not operate the controller without the fan filter and exhaust filter installed. Clean or replace filters when required.
Manufacturer-Listed Frequencies
Inspect and clean fan filter and exhaust filter: As needed.
Basic Functional Test: As needed or after power cord or battery pack replacement.
The manual does not list a fixed annual, semiannual, or monthly PM interval.
Manufacturer-Listed Parts
Tube set, sold in pairs: 9528
Filter Exhaust SCD 700 Series: 1036056
Filter Inlet SCD 700 Series: 1036057
Battery Pack: 1030950-SP
Power Cord, US/Japan: 93120-SP
Additional regional power cord and repair part numbers are listed in the manual parts section.
Post-Repair / Replacement Considerations
The manufacturer-listed Basic Functional Test is specifically listed as needed or after power cord or battery pack replacement. The manual does not list a separate electrical safety test procedure with ground resistance or leakage current limits.
AEM Note
If a facility performs this PM at a different interval or changes the listed activities, that should be handled under the facility’s approved AEM program, risk assessment, maintenance history, and applicable regulatory requirements.
What This PM Procedure Covers
This procedure covers exterior condition and power cord inspection, fan filter and exhaust filter inspection or cleaning, the Basic Functional Test, battery operation check, verification that no unexpected errors occur during PM, and electrical safety documentation per facility policy.
Required Tools and Equipment
Soft cloth
Mild detergent or approved disinfectant wipe, if cleaning is performed
Access to AC power
Tubing and sleeves removed from rear controller ports for Basic Functional Test
Electrical safety analyzer, if required by facility policy
Replacement inlet filter, exhaust filter, power cord, or battery pack if needed
The manual supports cleaning with water or mild detergent and lists approved cleaner types for controller cleaning. It warns against excessive spraying near rear connection ports and says liquid entering the ports may damage internal components.
Step-by-Step PM Procedure
1. Verify Device Identity and Condition
Action: Confirm manufacturer, model, asset ID, serial number, and location. Inspect the controller housing, membrane panel, rear ports, bed hook, power cord cover, tubing ports, and labels.
Expected outcome: Device is identifiable, intact, and suitable for inspection.
Remove from service if: Housing is damaged, controls are unreadable or nonfunctional, rear ports are damaged, the controller cannot be safely powered, or the device appears contaminated beyond routine cleaning.
2. Inspect Power Cord and Mains Connection
Action: Inspect the power cord and plug for cuts, damaged insulation, bent blades, exposed conductors, looseness, or signs of overheating.
Expected outcome: Power cord and plug are intact.
Why it matters: The manual warns not to operate the controller if the power cord is damaged and states the device must be connected to a supply mains with protective earth ground to avoid electric shock risk.
Remove from service if: Power cord is damaged, plug is damaged, grounding integrity is questionable, or AC power connection is unreliable.
3. Inspect Airflow Areas and Filters
Action: Unplug the controller before accessing the fan filter or exhaust filter. Inspect the fan filter and exhaust filter. Clean or replace as needed.
Expected outcome: Filters are present, clean, and correctly installed. Airflow paths are not blocked.
Why it matters: The manual states the fan filter and exhaust filter must be kept clean, the controller should never be run without them in place, and obstructed airflow can cause overheating and premature component failure.
Remove from service if: Filters are missing, damaged, excessively contaminated, or airflow cannot be restored.
4. Clean Exterior Surfaces if Needed
Action: Clean the controller enclosure with a soft cloth dampened with water or mild detergent. If sanitizing, apply cleaning agent using a cloth or wipe. Avoid excessive spraying near the rear connection ports.
Expected outcome: Controller is clean with no liquid intrusion.
Do not do: Do not immerse, autoclave, or ETO sterilize the controller.
Why it matters: The manual states liquid immersion, autoclaving, or ETO sterilization can cause irreparable damage.
5. Perform AC Power Indicator Check
Action: Plug the controller into AC power. Verify the AC Power/Battery Charging indicator LED illuminates blue.
Expected outcome: Blue AC Power/Battery Charging indicator is illuminated.
Manual-listed Basic Functional Test step: This is Step 1 of the manufacturer-listed Basic Functional Test.
6. Perform Battery-Only E12 Functional Check
Action: Disconnect the controller from AC power. Ensure tubing and sleeves are not connected to the rear of the controller. Turn the controller on and allow it to run on internal battery only until the E12 error is presented. Turn the controller off.
Expected outcome: Controller runs on internal battery and presents E12 when no tubing or sleeves are connected.
Manual-listed expected result: The Basic Functional Test expects the controller to run on internal battery only until E12 is presented. If any other errors are presented, the manual directs the user to refer to the IFU error codes for troubleshooting.
Remove from service if: Controller does not operate on battery, fails to present E12 under the test condition, presents an unexpected error, or cannot be powered off normally.
7. Check Battery Condition Indicators
Action: Observe battery status indicators during AC charging and battery operation.
Expected outcome: Battery indicators behave normally and the unit supports battery operation.
Facility note: The manual states a fully charged battery typically provides 6–8 hours of operation depending on sleeve configuration, sleeve application, and battery condition. It also states that if battery operation time is extremely short, the battery should be returned for service or replacement.
8. Review Visible Error Condition
Action: Confirm no persistent service-required error remains after the PM test. If an unexpected error occurred, document it and troubleshoot using the manual’s error code section.
Expected outcome: No unresolved unexpected errors remain.
Remove from service if: Any service-required error appears, repeated unexpected errors occur, or the controller cannot complete the manufacturer-listed Basic Functional Test.
Electrical Safety Testing
The uploaded manual does not provide a manufacturer-listed ground resistance limit or leakage current limit for routine PM.
Use facility policy, NFPA 99 program requirements, and the facility’s electrical safety testing procedure when electrical safety testing is required.
Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different.
Touch/chassis leakage measured in microamps:
Facility limit used =
Result =
Pass / Fail =
Electrical safety note: The device is Class I, internally powered, portable, with Type BF applied parts. The manual lists power requirements of 100–240 VAC, 50 VA, 50/60 Hz.
Pass / Fail Criteria
PM Pass Criteria
Controller exterior is intact.
Power cord and plug are undamaged.
Fan filter and exhaust filter are present, clean, and installed.
Airflow paths are not obstructed.
AC Power/Battery Charging indicator illuminates blue when plugged into AC.
Controller operates on internal battery during the Basic Functional Test.
E12 error appears as expected with no tubing or sleeves connected.
No unexpected errors are present.
Electrical safety testing passes if required by facility policy.
Remove From Service Criteria
Remove the controller from service if the power cord or plug is damaged, the controller housing, ports, bed hook, or membrane panel is damaged in a way that affects safe use, the fan filter or exhaust filter is missing or cannot be cleaned/replaced, the controller does not operate on battery during the Basic Functional Test, the expected E12 error does not occur during the Basic Functional Test, any unexpected or service-required error occurs and cannot be resolved, electrical safety testing fails under facility criteria, or evidence of liquid intrusion is found.
Copy/Paste CMMS Work Order Procedure
Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.