6 - ENG PN 13402391 D | User Manual
EMS 20
Operating Instructions
Setup Instructions
1. Remove from shipping carton and remove plugs
from quick disconnect valve (QDV) and oxygen
gas outlet.
WARNING: THESE CONNECTION MUST
BE DRY, BECAUSE MOISTURE CAN CAUSE
THE EQUIPMENT TO FREEZE TOGETHER
AND MAY CAUSE LEAKAGE IN THE FILL
CONNECTOR.
2. Position and secure EMS unit in vehicle compart-
ment. Optional Caire mounting bracket.
3. Attach vent line from vent outlet to exterior of
vehicle compartment (see Accessories section for
more info).
4. Attach vehicle’s oxygen plumbing.
5. Attach condensate bottle bracket to EMS unit.
6. Slide condensate bottle into bottle bracket or run
condensate drain tube to exterior of vehicle.
7. Fill equipment with liquid oxygen and test vehi-
cle’s oxygen delivery systems.
Note: Fill source must contain liquid oxygen satu-
rated between 75psi (5.2 bar) and 100psi (6.9 bar).
Optimal saturation pressure is 85psi (5.9bar)
8. Record location of equipment inside vehicle for
future reference.
Fill Instructions
1. Weigh unit as required by local and federal stan-
dards.
2. Wipe reservoir fill connector and fill source with
lint-free rag.
3. Open liquid use valve on fill source and purge
transfer line by pressing QDV poppet (at end of
transfer line) against non-painted surface for a
few seconds.
4. Connect pressure gauge to oxygen outlet and
open outlet valve.
5. Open vent valve on EMS unit.
6. Connect transfer line from fill source to EMS to
fill. During fill, throttle the vent valve to keep
pressure at oxygen outlet at approximately 50psi
(3.5 bar).
7. When liquid spurts from vent outlet, perform the
following steps in order: close EMS vent valve,
turn off outlet valve, disconnect pressure gauge,
close liquid fill source, and purge transfer line.
Basic Operations
1. Use the following chart as a guideline to deter-
mine the length of time the EMS 20 will operate:
Model
L-20
Off
Nominal
0.25
34-17
0.5
24-16
0.75
16-11
1
12-8
1.5
8-5
2
6-4
2.5
4-22
3
3-2
4
2-11
5
2-1
6
1-12
8
1-5
10
1-0
12
0-19
15
0-19
Note: Times are in days and hours (format 00-00).
Note: The “Nominal” times are for ideal conditions,
i.e. maximum fill, exact flow rates, good loss rate,
EMS 20 not being moved, etc. These times are the
maximum expected.
Note: Your individual results will vary.
2. Use the following chart as a guideline to the
recommended tubing length.
FLOW
SETTING
MAXIMUM (RECOMMENDED)
TUBING LENGTH*
(LPM)
20-psig
50-psig
1-6
100 Ft. (30.5 m)
100 Ft. (30.5 m)
8
100 Ft. (30.5 m)
75 Ft. (22.9 m)
10
50 Ft. (15.2 m)
50 Ft. (15.2 m)
12
25 Ft. (7.6 m)
50 Ft. (15.2 m)
15
25 Ft. (7.6 m)
25 Ft. (7.6 m)
*Length is oxygen tubing only. Does
not
include a 7 Ft. cannula.
