Parts list and build notes (Rev 2)

Item: Packout Cart, Milwaukee
Price (each): $129.00 at Home Depot/Ace
Quantity needed: 1
Notes: Lower box to contain parts during transport; has hand truck for transport

Item: Milwaukee PACKOUT 22 in. Large Tool Box
Price (each): $79.97 at Home Depot/Ace
Quantity needed: 1
Notes: Perfect size enclosure to house the power, control system and pump.

Item: AC Infinity Ventilation Grille, for PC Computer AV Electronic Cabinets, Also mounts one 120mm Fan (not used)
Price (each): $11.99 on Amazon.com
Quantity needed: 2
Notes: 4 inch hole saw to create port; use any vent grill to fit

Item: GDSTIME 80mm USB Fan, 5V USB powered, 80mm x 25mm 8025 Brushless Computer Case Cooling Fan
Price (each): $13.99 on Amazon.com
Quantity needed: 2
Notes: POSSIBLE LONG LEAD TIME! Any brand of 3" diameter fan, 5v USB power supply--Grainger (or other vendor) may have but would need to wire USB plug

Item: EcoPlus 728459 Pump, Commercial 3566 GPH, Brown/A
Price (each): $117.74 on Amazon.com
Quantity needed: 2 (One for use, one for emergency backup)
Notes: Local Hydroponics suppliers may have stock on these. If you don't deadhead the pump (i.e. significantly decrease its output flow), it should run at an acceptable temperature maximizing its anticipated service life, particularly with the cooling fans used in the enclosure. Include two pumps with every build for a backup, which can be brought online in about 20 seconds.

Item: 24V DC Power Supply: PSL-24-060 by Rhino
Price (each): $36.50 on AutomationDirect.com
Quantity needed: 1
Notes: 24V DC, 60 Watts. Board mounted. Power module assembly required. This was introduced in REV2

Item: Solid State Relays DC60S5 by Opto 22
Price (each): Around $22 each (various sources online)
Quantity needed: 3
Notes: These solid state relays added improved reliability and were introduced for REV2. They are board mounted and require wiring and assembly.

Item: Spartan Scientific normally open valve, 6200-F50-AEC3A, 24VDC, NO Valve, O2 cleaned
Price (each): around $35
Quantity needed: 3
Notes: Prototype valves had LONG LEAD TIME; The US Solid valves used in the prototype are only good for about 1 Million cycles per the company-- only about 10 days of use. PRODUCTION SWITCHED TO 3 NORMALLY OPEN, Oxygen Cleaned 24V DC Solenoid Valves Manufactured by Spartan Scientific (a Canfield Company), with anticipated service life of 20 Million cycles (about one year of continuous use). Part Number:  6200-F50-AEC3A, 24 VDC, NO VALVE, O2 CLEANED. Vendor: Fiero Automation, Arvada, Colorado

Item: Machine Screw, Round Head CMB Zinc #10-32×1
Price (each): $1.18 at Home Depot
Quantity needed: 1 package of six (need only two per build)

Item: 16-2 50ft Landscape Lighting Cable (or equivalent)
Price (each): $15.98 at Home Depot
Quantity needed: 1

Note: An assortment of 16 gage wire is recommended for this build. Use single strand 16-Ga on the board; we used 5 strand-18 gage shielded from board to solenoids. Only two strands (red and black, standard for + and -) are used for solenoids. Also, an assortment of wire butt splices and terminal splices (ferrule type) appropriate to the wire gage is recommended.

Item: Spade, vinyl 16-14 AWG 8-10 Stud 15 Pack
Price (each): $1.98 at Home Depot
Quantity needed: 2

Notes: You may substitute any safe and appropriate electrical fittings for powering connecting 24V DC solenoid valve dongles to enclosure plugs. We used these on the prototype and to test the new solenoids on REV2.

Item: Programmable Logic Controller (PLC): C0-02DD2-D by CLICK 
Price (each): $103 at AutomationDirect.com
Quantity needed: 1

Item: Human Machine Interface (HMI): EA3-S3ML-RN by C-more Software
Price (each): $101 at AutomationDirect.com
Quantity needed: 1

Item: Communication Cable: DV-1000CBL
Price (each): $28 at AutomationDirect.com
Quantity needed: 1

Item: DIN Rail mounting clip  DN-CLIP-FM5-5
Price (each): Around $3.50 at AutomationDirect.com
Quantity needed: 2

Item: Circuit Breaker, Power Module FAZ-C15-1-NA-SP by Eaton
Price (each): $20 at AutomationDirect.com
Quantity needed: 1

Item: 3-receptacle outlet, 15A 110VAC,  FA-REC3 by FACTS Engineering
Price (each): $24.50 at AutomationDirect.com
Quantity needed: 1

Item: Aluminum back plane, 12" x 10" by Attabox
Price (each): around $20 at AutomationDirect.com
Quantity needed: 1

Item: DIN Rail: DNR35HS1-2
Price (each): $8.50 at AutomationDirect.com
Quantity needed: 1

Item: DIN Rail: DNR35HS1-2
Price (each): $8.50 at AutomationDirect.com
Quantity needed: 1

Item: Terminal Block Jumper, Screw-Type, 4-Pole: KN-4J12 by Konnect-It
Price (each): around $15 at AutomationDirect.com
Quantity needed: 1-2 packs of 15

Item: Terminal Block End Cover: KN-ECT6GRY-25 by Konnect-It
Price (each): $2 at AutomationDirect.com
Quantity needed: 4

Item: Terminal Block End Bracket: KN-G12SP-10 (package of 10) by Konnect-It
Price (each): $16 at AutomationDirect.com
Quantity needed: 1

Item: Grounding Terminal Block: KN-T12RED-25 (package of 25) by Konnect-It
Price (each): $6.50 at AutomationDirect.com
Quantity needed: 1

Item: Single Level Terminal Block, White: KN-T12WHT-25 (package of 25) by Konnect-It
Price (each): $6.50 at AutomationDirect.com
Quantity needed: 1

Item: Single Level Terminal Block, Blue: KN-T12BLU-25 (package of 25) by Konnect-It
Price (each): $6.50 at AutomationDirect.com
Quantity needed: 1

Item: Single Level Terminal Block, Gray: KN-T12GRY-25 by Konnect-It
Price (each): $6.50 at AutomationDirect.com
Quantity needed: 1

Item: USB Charger, Anker Elite Dual Port 24W Wall Charger, PowerPort 2 with Power IQ and Foldable Plug (or equivalent)
Price (each): $8.99 on Amazon.com
Quantity needed: 1
Notes: Any 5V 2.4A USB charger with 2 ports will work to deliver power to the Enclosure Cooling Fans

Item: 3/8" Barb x 1/2" MIP Adapter, Brass

Item: 3/8" Barb x 1/2" MIP Adapter, Brass
Price (each): $3.93 at Home Depot
Quantity needed: 12

Item: 1/2" x 1/2" x 1/2" PEX Tee, 10-pack
Price (each): $25.57 at Home Depot
Quantity needed: 1
Notes: Only need one package

Item: 3/8 in. I.D x 10 ft. Clear Braid Vinyl UDP Tubing, 225 psi, 25-150 degrees Fahrenheit rating
Price (each): $11.32 at Home Depot
Quantity needed: 2
Notes: 3/8" inside diameter needed-- possible to substitute 1/2" inside diameter but fittings will need to be adjusted accordingly. If building multiple units, cost savings available buy purchasing larger quantities. Also used to make a tube header that can be connected to hospital oxygen supply by 4mm ID tubing.

Item: Pressure Relief Valve, 0 to 20 psi, 1/4″ NPT
Price (each): $14.35 at Grainger
Quantity needed: 12
Notes: Need one per patient port; set them to 40-45cm H₂0 per instructions

Item: Brass Pipe Hex Bushing, 1/2" MIP x 3/8" FIP)
Price (each): $4.38 at Home Depot
Quantity needed: 1
Notes: Used to bush down pressure gage only (for test). Needed only if you can't find a 3/4" to 3/8" bushing.

Item: Brass Pipe Hex Bushing, 3/4" MIP x 1/2" FIP
Price (each): $6.13 at Home Depot
Quantity needed: 1
Notes: Used to bush down pressure gage only (for test). If you can, use a 3/4" to 3/8" bushing and this won't be needed.

Item: Brass Pipe Square Head Plug, 1/2" MIP
Price (each): $4.98 at Home Depot
Quantity needed: 6
Notes: Used to plug ends of manifold for transport to keep free of debris

Item: Brass Pipe Nipple, 1/2" MIP x 2-1/2
Price (each): $6.95 at Home Depot
Quantity needed: 6

Item: Hose Barb Adapter, 1/4" ID x 3/8" MIP
Price (each): $5.88 at Home Depot
Quantity needed: 1
Notes: Not used in final design

Item: 1/2" PVC Union FPTXFPT
Price (each): $3.23 at Home Depot
Quantity needed: 6
Notes: Two per manifold are sufficient

Item: 1/2 in. x 1/2 in. x (4) 1/2 in. CSST FIPT Stainless Steel Manifold
Price (each): $15.47 at Home Depot
Quantity needed: 3
Notes: Need three manifold bodies for 1:2 I/E mode

Item: 1/2 in. PVC Sch. 40 FIP x FIP Ball Valve
Price (each): $2.80 at Home Depot
Quantity needed: 18
Notes: Need six per manifold. With the addition of a Bypass line in REV 2, a ball valve between the solenoids and manifolds is optional. The anticipated 20 million cycle life of the upgraded solenoids should prevent their failure for limited deployments (conservatively up to a few months), so a manual mode of controlling flow to the patient manifolds may not be needed with the REV2 units. This does not mean these valves should not be replaced during routine maintenance. The time of operation should definitely be tracked for each.

Item: 1/2" MIP x Close nipple, brass
Price (each): $4.87 at Home Depot
Quantity needed: 18

Notes: You may want to purchase some extra ones. We seemed to run short on these, depending on actual manifold assembly and availability of FPT vs MPT fittings in your area.

Item: 1/2" MIP x 1-1/2" to 2" nipple, brass
Price (each): $4.87 at Home Depot
Quantity needed: 10

Item: 3/8" Barb x 1/2" MIP Adapter, Brass
Price (each): $3.93 at Home Depot
Quantity needed: 4

Notes: You need one on each side of two check valves. One check valve is placed in the Air line prior to teeing into the main supply line (with the Oxygen line on the other leg of the tee). The other check valve is placed in the Oxygen line, also ahead of this tee, but downstream of the O2 Pressure regulator (which reduces pressure from the hospital supply to ~5 psi, equivalent to the pump air supply pressure). Pick up a few extras and also some 3/8" barb x 3/8" MIP brass adapters for the new REV2 Spartan solenoid valves, which has 3/8" FPT porting (not 1/2" like the prototype).

Item: 1/2" Barb x 3/8" MIP Adapter, Brass
Price (each): $3.93 at Home Depot
Quantity needed: 10

Item: T-H-B CO EDGE INDUSTRIAL Heavy Duty HIGH Flow Compressed AIR in-LINE PARTICULATE Filter with Metal Bowl, 3/4″ NPT Ports, 140 CFM, Visible Sight Glass, 5 Micron Element
Price (each): $35.90 @ Amazon.com
Quantity needed: 1
Notes: Grainger may have substitute. You don't need an adjustable one so don't spend the extra money.

Item: 3/4" ID Clear Vinyl Tubing – 1-inch, 10-feet
Price (each): $24.15 at Lowes
Quantity needed: 1

Notes: One roll of this can build multiple field vent units. It is only used as a shroud to protect the 3/8" ID tubing from the pump nozzle, where it goes through the enclosure; and to connect the intake filter (via 3/4" x 1/2" poly adapter) to the pump's 1/2" intake.

Item: Intake Filtration, 3/4″ Poly Insert Male Adpater (3/4" barbed x 3/4" NPT)
Price (each): $0.81 at Home Depot
Quantity needed: 2

Item: Intake Filtration,1/2 in. I.D. x 5/8 in. O.D. x 10 ft. Clear Vinyl Tubing
Price (each): $5.18 at Home Depot or other
Quantity needed: 1

Notes: DO NOT USE THIN WALLED CLEAR VINYL TUBING. VACUUM PRESSURE FROM THE PUMP MAY CAUSE THE TUBING TO CONSTRICT AND REDUCE INTAKE AIR FLOW.

Item: Intake Filtration, 3/4" x 1/2" barbed poly adapter
Price (each): $0.99 at Home Depot or other
Quantity needed: 1

Notes: For connecting 3/4" ID vinyl tubing from intake filter to the 1/2" ID vinyl tubing that goes to the pump's intake.

Item: Intake Filtration, 1/2" barbed poly elbow
Price (each): $0.99 at Home Depot or other
Quantity needed: 2

Notes: For connecting the 1/2" ID vinyl tubing that goes to the pump's intake to the 3/4" ID vinyl tubing from the intake filter. There are two required per build because one goes with the backup pump that should be supplied with every unit.

Item: 4 foot, 4 outlet 1200J USB Surge Protector
Price (each): $14.97 at Lowes
Quantity needed: 1

Note: This power supply is not needed for REV2 (which delivers power from the Power Module), but a suitable 110V AC Power Cord with ground and enclosure clamp (e.g. Romex connector) will be needed to bring power to the updated Power Module breaker.

Item: 1/2" Romex connector
Price (each): Approximately $0.99 at any hardware store
Quantity needed: 1

Note: Any suitable cable clamp can be used to attach the 110VAC power supply cable to the enclosure wall. It is recommended for true field units to use an enclosure- mounted female electrical plug receptacle in the cabinet and attache the shortest extension cord possible to it at the deployment site. This avoids having any power cords outside the unit during transport. Also, do not use less than 16 gage wire extension cords capable of 20 amp service.

Item: 110VAC power cord, 3 wire, 20 amp
Price (each): Approximately $40 (Grainger price)
Quantity needed: 1

Item: Extension cord, 8 foot, Indoor/Outdoor, 125V 13 Amp, 1625 Watt
Price (each): $8.95 at Home Depot
Quantity needed: 1
Notes: Keep extension cords as short as possible to avoid line voltage drops to power module and pump.

Item: Flanged Inlet, Male electric plug, enclosure mounted
Price (each): approximately $10.00 at Home Depot
Quantity needed: 1
Notes: Used in true field units to connect power to the enclosure without having an electrical supply cable dangling outside the box during transport. (Wire this to the power module inside the enclosure).

Note: Power Supply was changed from 12V DC to 24V DC after prototype

The prototype power supply rail system will be obsolete from REV2 forward. This does not affect the rail system clamping the air blower (pump) into the housing.

Item: Jam Nut, 1/4"-20 x 4
Price (each): $1.18 at Home Depot
Quantity needed: 2 (total of 8 needed to clamp the REV2+ power module in the enclosure)

Note: When installing the power module back plane into the enclosure, place sound damping mat beneath the back plane and elevate the back plane at least 1/2" above the mat to allow cooling air to circulate beneath the back plane. Use jam nuts to do this and clamp the back plane between two jam nuts at each corner.

Item: Round head machine screw, 1/4"-20 x 2-inch length
Price (each): $28 at Home Depot for 50-pack
Quantity needed: 8 per unit (there are enough for 6 field vent units in one pack)
Notes: Use four for power module and 4 for pump.

Item: Mending Plate, 10" Zinc, for retaining Power Supply in enclosure
Price (each): $2.98 at Home Depot
Quantity needed: 2

Notes: Use these to clamp the pump to the enclosure. This avoids having to know the bolt pattern of the pump's mounting brackets. 

Item: 1/4" Zinc Wing Nut, Bag of 4
Price (each): $1.18 at Home Depot
Quantity needed: 2 bags (one for the Power module and one for the pump)

Item: Fender Washer, Zinc, 1/4" x 1-1/4", Bag of 4
Price (each): $1.18 at Home Depot
Quantity needed: 2

Item: Washer, lock INT Tooth, Zinc, 1/4", Bag of 18
Price (each): $1.18 at Home Depot
Quantity needed: 1

Notes: These are used to prevent the 1/4"-20 nuts (and wing nuts) that retain the Power Module and Pump from loosening during the vibration of the pump in use.

Item: Mat, sound deadening, phalate free, low VOC emmisions (for sound and vibration damping)
Price (each): $7.98 at Home Depot
Quantity needed: 1

Notes: We used the "Jimmy Black 17.5" x 29" mat by Home depot beneath the power module and pump, as well as on the back wall of the enclosure containing the 4" diameter passive cooling air inlets.

Item: Rubber Pin 18"x30" Black Door Mat
Price (each): $10.47 at Home Depot
Quantity needed: 1

Notes: We used this material as sound damping on the remaining enclosure walls and inside the lid (cut to appropriate shape)

Item: Oxygen Pressure Regulation Valve (We used the Olsen model available at Harbor Freight)

Price (each): $70 at Harbor Freight
Quantity needed: 1
Notes: Used to regulate hospital line pressure (50 to 150 psi in general) down to that needed for the field vent unit (approximately 5 psi). Be sure to use Oxygen cleaned pressure regulators and valves in any flow line that will carry oxygen percentages greater than room air! To splice this into the O2 line, remove the CGA fitting and 1/4" NPT nipples from the valve body and instead place 3/8" barbed x 1/4" NPT tubing adapters.

Item: Inline Check Valve (1/2" x 1/2")
Price (each): $11.29 at Home Depot
Quantity needed: 2
Notes: Do not use swing check valves. They must remain upright in order to function properly. These inline valves do not. Be sure to use Oxygen cleaned valves in any flow line that will carry oxygen percentages greater than room air! Cracking pressure must be only 1-2 psi maximum.

Item: 3/8" barbed tee
Price (each): Approximately $6.00 for a dozen (various online suppliers)
Quantity needed: 6 per unit
Notes: Can substitute brass for significantly greater cost. You will use two in the Oxygen tubing headers; one in the Air bypass line; one to connect the Oxygen and Air lines to the main manifold supply tubing; and two more to branch tubing from the main supply line to the individual manifolds.

Item: 3/8" barbed elbow
Price (each): Approximately $1.00 from any hardware store (more if brass is used)
Quantity needed: 1
Notes: Used in the Oxygen tubing header.

Item: 3/8" barbed x 1/4" NPT adapter
Price (each): approximately $5.00 at Home Depot
Quantity needed: 3
Notes: Used to connect 3/8" ID vinyl braided tubing header supply lines to the 1/4" x 1/4" FPT couplings (and from there to the 1/4" barbed x 1/4" NPT O2 adapters to 4mm ID hospital supply)

Item: 1/4" barbed x 1/4" NPT adapter
Price (each): approximately $5.00 at Home Depot
Quantity needed: 5
Notes: Use three to connect 3/8" ID vinyl braided tubing header supply lines to the 1/4" x 1/4" FPT couplings (and from there to the 1/4" barbed x 1/4" NPT O2 adapters to 4mm ID hospital supply). The other two will replace the inlet and outlet fittings supplied with the Olsen Oxygen Pressure Regulator, so that 3/8" ID tubing can be adapted to that regulator.

Item: 1/4" barbed x 1/4" FPT Coupling
Price (each): $4.37 at Home Depot
Quantity needed: 3
Notes: Used to connect 3/8" ID vinyl braided tubing header supply lines to the 1/4" x 1/4" FPT couplings (and from there to the 1/4" barbed x 1/4" NPT O2 adapters to 4mm ID hospital supply)

Item: High Flow O2 Liter Meter (2-15 LPM) to Measure Oxygen by Responsive Respiratory
Price (each): $20.88 on Amazon.com
Quantity needed: 6
Notes: Any equivalent manufacturer OK

Item: CPAP Tubing
Price (each): $8.50 (obtained at Independently Yours Medical Supply, Louisville, Colorado)
Quantity needed: 6

Item: Home-Flex Pressure Test Gauge (0-15 PSI, 3/4" FIP Threads, Schrader Valve)
Price (each): $10.97 at Home Depot
Quantity needed: 1

Item: 3/4" Poly Insert Tee
Price (each): $0.83 at Lowes
Quantity needed: 1

Item: 3/4" Poly Insert Male A
Price (each): $0.43 at Lowes
Quantity needed: 2

Item: 3/4"x1/2" Poly Insert Tee IXIXFPT
Price (each): $1.45 at Home Depot
Quantity needed: 1