Matrx by Midmark
145 Mid County Drive
Orchard Park, New York 14127
800 MIDMARK [643-6275] (Customer Service)
888 279 1260 (Technical Service)
www.midmark.com
Part No. 10376600 Rev. E
FLO-SAFE
Manifold & Alarm System
Installation and Operation Manual
MX105300
Reference Only
1-800-Midmark
www.midmark.com
Style F
i
Doctor’s Operating Summary.................................... ii-iii
Safety Warning and Important Information .................. 1
Section 1 About FLO-SAFE ...................................... 2
1.1 Description
1.2 Models and Features
1.3 System Components
Section 2 Pre-Installation ...................................... 3-5
2.1 Kit Content
2.2 Installation of Manifold Mounting Plate
2.3 Installation of Zone Valve
2.4 Piping System Installation
2.5 Supply Circuit Connection
2.6 Low Voltage Signal Cable
Section 3 System Installation................................ 6-7
3.1 Wall Mounted Alarm
3.2 Desk Mounted Alarm
3.3 Control Module
3.4 Manifold
3.5 Cylinders and Regulators
Section 4 Zone Valve Installation and Testing .. 8-10
4.1 Zone Valve Pre-Installation
4.2 Manifold Switch Wiring
4.3 Zone Valve Switch Wiring
4.4 “Chained” Zone Valve
4.5 Pressure Switch Testing
4.6 Final Inspection
Section 5 FLO-SAFE Operation and Checkout 11-14
5.1 Activating the System
5.2 Deactivating the System
5.3 Changing Security Code
5.4 Alarm Features
5.5 Manifold Features
5.6 Control Module Features
Section 6 System Functional Testing............... 15-17
6.1 Test Setup
6.2 Cross Connection Test
6.3 Testing the Manifold Alarm
6.4 Replacing the Test Regulators
Section 7 Maintenance....................................... 18-20
7.1 Fuse Replacement
7.2 Adjusting Cylinder Regulators
7.3 Gas Cylinder Replacement
Section 8 Calibration and Troubleshooting ..... 21-23
8.1 FLO-SAFE Manifold Calibration
8.2 Problems and Solutions
8.3 Global Reset
8.4 Troubleshooting Tips
Section 9 Replacement Parts ................................. 24
Section 10 Service and Warranty............................. 24
TABLE OF CONTENTS
CONTENTS
Reference Only
ii
Daily Startup
1. Open all four gas cylinder valves completely.
2. At the Alarm Panel, press the ON/OFF indicator.
3. The system is now operational unless your system
is a FS-1 or CFS-1 with the optional security
system. For these systems, the Alarm Panel
SECURITY indicator should light. Enter your code.
If indicator fails to light, call for service.
4. Press ON/OFF again. Your system is now
operational.
Daily Shutdown
1. At the Alarm Panel, press the ON/OFF indicator.
2. Close all four gas cylinders valves completely. The
system is now shut down.
3. Do not remove alarm or disconnect components
to shut down FLO-SAFE.
Operating Tips
1. Do not use the supply circuit breaker to control
operation of FLO-SAFE. Current draw is negligible
and a global reset (Section 8.3) must be performed
each time power is turned off (or interrupted).
2. It is a good practice to note the pressure readings
of both gauges at the Manifold after shutdown and
just before startup. If there is more than 5 psi
change in pressure, your system is leaking
excessively. Call your Matrx by Midmark dealer for
Service.
3. If you have forgotten or want to change your
security code, see Section 5.3 and 5.6 of this
manual.
4. FLO-SAFE provides: status information; audible
and visual alarms when gas pressure is high or
low; warnings when there is no reserve, and a
manual override to allow gas delivery during power
outages. These functions are illustrated from a
user’s prospective on the next page.
DOCTOR’S OPERATING SUMMARY
ALARM PANEL
STEP 2 CLOSE ALL FOUR GAS CYLINDER
VALVES COMPLETELY
STEP 1 PRESS ALARM PANEL
ON/OFF INDICATOR
N
2
O
N
2
O
O
2
O
2
MX105500
Startup
Shutdown
SUMMARY
STEP 3 FOR SYSTEMS WITH SECURITY,
ENTER YOUR CODE
STEP 2 PRESS ALARM PANEL ON/OFF
INDICATOR
STEP 4 FOR SYSTEMS WITH SECURITY,
PRESS ON/OFF AGAIN
MX105400
STEP 1 OPEN ALL FOUR GAS CYLINDER
VALVES COMPLETELY
O
2
O
2
O
2
O
2
N
2
ON
2
O
N
2
ON
2
O
ALARM PANEL
Reference Only
iii
Electrical power failure. To
continue operation, set the
Manifold selector knob so that
the pointer of the knob aligns
withe the triangular blue mark at
12 o’clock on the Manifold cover.
Gas will now flow to the operato-
ries. When power returns, press
the ON/OFF indicator on the
Alarm Panel to resume auto-
matic operation.
Alarm beeps continuously indicates high or low gas
pressure. When nitrous oxide or oxygen pressure at the
Manifold exceeds 65 psi or drops below 40 psi, the Alarm
Panel responds with an audible, repeating “beep” and
lights the appropriate HIGH or LOW indicator. Correcting
the problem causes the indicator to return to normal and
shuts off the beeper. To silence the beeper during
servicing, press the icon shown.
FLO-SAFE is not operating normally and the tank
gauges show adequate gas supplies (at least 200
psi). Check the SYSTEM STATUS indicator. When an
abnormal situation arises, the SYSTEM STATUS
indicator and one or more of the letters A, B, or C will
light. See Section 8, Troubleshooting, for a description
of each of the status condition codes e.g., A, AB, BC.
If calling for service, give your Matrx dealer (listed on
cover), the status code indicated.
When a NO RESERVE icon lights, a good practice is to
replace empty tank without delay to avoid an automatic
shutdown because of low gas pressure.
DOCTOR’S OPERATING SUMMARY
N
2
O NO RESERVE INDICATOR
O
2
NO RESERVE INDICATOR
MX105800
SYSTEM STATUS
INDICATOR
MX105800
NITROUS OXIDE
HIGH/LOW INDICATOR
TO SILENCE ALARM
BEEPER, PRESS HERE
OXYGEN HIGH/LOW
INDICATOR
MX105700
ON/OFF INDICATOR
MX105600
FOR MANUAL
OVERRIDE, SET
SELECTOR KNOB
TO 12 O’CLOCK
Reference Only
1
WARNING: READ AND UNDERSTAND THE FOLLOWING SAFETY INSTRUCTIONS
BEFORE ATTEMPTING TO INSTALL OR OPERATE THE FLO-SAFE MANIFOLD AND
ALARM SYSTEM. IF YOU DO NOT UNDERSTAND THESE INSTRUCTIONS, CONTACT
YOUR LOCAL MATRX BY MIDMARK DEALER.
SAFETY WARNINGS AND IMPORTANT INFORMATION
Installation and testing shall be done in accordance with NFPA or CSA standards. It is the responsibility of
the installer to ensure compliancy with the above standards as well as any local building or fire code.
1. DO NOT USE OIL, GREASE, OR ANY OTHER
PETROLEUM-BASED OR FLAMMABLE
SUBSTANCE ON OR AROUND OXYGEN
EQUIPMENT. Oil and grease become highly
combustible in the presence of oxygen. Oxygen
is not flammable by itself; however, all materials
which burin in air will burn much more rapidly in
the presence of oxygen.
2. DO NOT ALLOW OXYGEN OR NITROUS
OXIDE EQUIPMENT TO BECOME EXPOSED
TO FIRE, SPARKS, OR OTHER POSSIBLE
SOURCES OF IGNITION.
3. DO NOT USE THE REGULATOR IF OIL OR
GREASE IS PRESENT, OR IF DAMAGE IS
EVIDENT.
4. DO NOT SUBMERGE THE REGULATOR IN
WATER. Wipe Dusty parts with a damp cloth.
To disinfect the regulator, use isopropyl alcohol.
5. NEVER ALTER THE REGULATOR IN ANY WAY.
6. IF YOU HEAR A LOUD “HISSING” OR
“POPPING” SOUND COMING FROM THE
REGULATOR, CLOSE THE CYLINDER VALVE
OR GAS INLET AND CONTACT YOUR MATRX
BY MIDMARK DEALER. This regulator is
equipped with a relief valve; these sounds
indicate a possible malfunction and hazardous
condition.
7. INSPECT THE GAS CYLINDER VALVE FOR
LEAKS BEFORE PUTTING IT INTO SERVICE. If
a leak is found around the cylinder valve stem,
close the valve, place the cylinder outdoors in a
safe area, and inform your medical gas supplier
immediately.
8. DO NOT STORE CYLINDERS NEAR SOURCES
OF HEAT OR FLAME. Never allow the temperature
of the cylinder contents to exceed 125° F.
9. NO SMOKING. Remove matches, cigarettes,
lighters, and lighter fluids from the area.
10. SECURE TANKS with tank restraints.
11. KEEP ALL SUPPLY TANKS IN A LOCKED,
SECURED AREA.
12. NEVER LEAVE GAS CYLINDER VALVES OPEN
OVERNIGHT. Turn all cylinder valves clockwise at
the end of each day to shut off the gas supply.
13. WHEN OPENING A CYLINDER VALVE, ALWAYS
STAND SO THE CYLINDER VALVE IS BETWEEN
YOU AND THE REGULATOR. (Stand opposite the
supply line from the regulator to the Manifold).
NEVER STAND IN FRONT OF OR BEHIND A
REGULATOR when opening a cylinder valve.
INSTALLATION AND TESTING SAFETY
REGULATORY AND GAS CYLINDER SAFETY
Reference Only
2
ABOUT FLO-SAFE
SECTION 1.0
1.1 DESCRIPTION
The Matrx FLO-SAFE Manifold and Alarm System
provides safe delivery of nitrous oxide (N
2
0) and Oxygen
(O
2
) from source tanks to the lines supplying patient
areas. The FLO-SAFE Manifold is designed for systems
using less than 3000 cubic feet (85 cu. m.) of gas.
1.2 MODELS AND FEATURES
The FLO-SAFE Manifold System is available in two
models:
1. FS-1 and CFS-1with security
2. FS-2 and CFS-2 without security
All models provide automatic switchover to the reserve
tank, audio/visual alarms, and a Proportional Fail-Safe
feature that stops nitrous oxide flow in the event oxygen
pressure drops so that nitrous oxide cannot be
administered without oxygen.
1.3 SYSTEM COMPONENTS (Figure 1)
The system consists of the FLO-SAFE Manifold, Alarm
Panel, Control Module, Service Isolation Valve, Zone
Valve Shutoff box and four Cylinder Regulators.
1. The wall-mounted Manifold connects to the gas
supply (nitrous oxide and oxygen). It contains
pressure sensors, pressure relief devices, pressure
gauges, a Proportional Fail-Safe system, an
automatic switchover mechanism and Control
Module.
2. The Control Module houses the control electronics
and power supply. It directs all major functions of
the system, including tank switchover, pressure
alarms and system status.
3. The Alarm Panel provides control and system status
monitoring, with audio and visual alarms to warn of
high and low gas pressures. Model FS-1 has a
security function that prevents unauthorized
operation of the system. The Alarm Panel can be
wall-mounted or optionally desk-mounted
(requires kit PN 91307605).
4. The Zone Valve provids emergency shutoff of
gases in the patient area. Surface and flush-
mounted versions are available. Both are supplied
with high/low pressure switch assemblies and a
single-handle shutoff.
5. The Service Isolation Valve provides a means to
disconnect the supply gas from the distribution
system. A single actuator controls both O
2
and N
2
O
valves. Includes a security device to allow locking
the valve open and closed.
NOTE: Zone Valve Shutoff Boxes are required
in some installations. Refer to NFPA and CSA
guidelines.
FIGURE 1. FLO-SAFE Manifold System with Optional Zone Valve
MX106000
FLOW
TO INDIVIDUAL
PATIENT ROOMS
PATIENT AREA
CONTROL
MODULE
O
2
REGULATOR
CYLINDER
VALVE KNOB
O
2
O
2
N
2
O
N
2
O REGULATOR
SECURE
AREA
N
2
O
MANIFOLD
ZONE VALVE
(OPTIONAL)
WALL PLATE
WALL-MOUNTED
ALARM PANEL
OPTIONAL
DESK-MOUNTED
ALARM PANEL
6’ CABLE
SUPPLIED
WALL PLATE
Reference Only
3
PRE-INSTALLATION
SECTION 2.0
2.1 KIT CONTAINS
The Canadian FLO-SAFE (CFS) Manifold System
Installation Kit is available in two different configurations
based on the zone valve mounting arrangement, being
recessed or surface mount. Installation kit with recessed
zone valve, p/n 91307612 consists of the following:
Description Part No. Qty.
Manifold Installation Kit (includes
mounting plate, 100’ of signal and
hardware package) 40116000 1
Service Isolation Valve 30111600 1
Zone Valve Shut-off Box (Recessed) 91305653 1
Switch Box 61943300 1
Switch Box Support 61943455 2
Bushing 62923803 1
2-20 Cable 61896300 1
Installation Kit, with surface mount zone valve, p/n
91307613 consists of the following:
Description Part No. Qty.
Manifold Installation Kit (includes
mounting plate, 100’ of signal and
hardware package) 40116000 1
Service Isolation Valve 30111600 1
Zone Valve Shut-off Box (Surface) 91305652 1
Switch Box 61943300 1
Switch Box Support 61943455 2
Bushing 62923803 1
2-20 Cable 61896300 1
FIGURE 2. Installation Options for Manifold Mounting Plate and Main Power Installation
2.2 INSTALLATION OF MANIFOLD MOUNTING
PLATE
See Figure 3 to select a location for the manifold
mounting plate. The location selected must be within 36
inches of the proposed location for the gas cylinders
because 36 inch lines are provided to connect the FLO-
SAFE Manifold to the cylinders. Mount the bottom edge
of mounting plate 5 feet above the floor.
NOTE: UP label indicates proper orientation
2.2.1 Drywall Mounting
1. Use the mounting plate as a template. Mark
locations of the four spacers on back of the four
spacers on back plate and the four corner holes.
2. Drill 1" diameter clearance holes through drywall
at each spacer location so mounting plate fits flush
to wall.
3. Drill ¼” holes at corner holes. Insert hollow wall
anchors in corner holes. Attach plate using anchors.
2.2.2 Wall Stud Mounting
1. Use mounting plate as template. Mark the upper
and lower rear spacer holes.
2. Attach mounting plate to stud using wood screws.
2.2.3 Crossmember Mounting
1. Use mounting plate as a template. Mark the left,
right and lower rear spacer holes.
2. Attach mounting plate using wood screws.
2.3 INSTALLATION OF THE ZONE VALVE
(Refer to Section 4 elsewhere in this manual)
C
B
E
D
A
C
B
E
D
A
MX104800i
DO NOT USE
KNOCKOUTS
ON SIDE OF
ELECTRICAL BOX
IEC
CORD
GAP
SIGNAL
CABLE
ACCESS
FOR WIRING ACCESS
LEAVE THIS AREA OPEN
8” MAXIMUM
LOCATE BOTTOM
EDGE 5’ FROM FLOOR
Mounting Plate Options:
For drywall or surface mounting,
use four corner holes.
For pre-drywall crossmember
mounting, use three holes shown.
For pre-drywall stud mounting, use
two holes shown.
Main Power Installation Options:
Electrical box may be accessed from:
Top knockout
or
Knockout on backside of plate
Reference Only
4
PRE-INSTALLATION
Figure 3 Installation Options for Manifold Mounting Plate and Main Power Installation
FLOW
MX104900i
2-20 CABLE
(6’ PROVIDED)
TRIPLE GANG
ELECTRICAL BOX FOR
ALTERNATE PRE-
DRYWALL INSTALLATION
(NOT PROVIDED)
MANIFOLD MOUNTING PLATE:
• LOCATE BOTTOM EDGE 5’ FROM FLOOR
• WITHIN 36” OF SUPPLY GAS REGULATOR
SURFACE MOUNTED
ZONE VALVE
RECESSED
ZONE VALVE
1 3/8”
TWO ZONE VALVE SHUTOFF SIGNAL
CABLE - 4 CONDUCTOR EACH
(100’ PROVIDED)
ALARM SIGNAL CABLE - 4 CONDUCTOR
(100’ PROVIDED)
115 VAC MAIN POWER WITH
DEDICATED CIRCUIT BREAKER
CONNECT WITH WIRE
CONNECTORS (SUPPLIED
WITH ALARM PANEL)
12 1/8”
R.O.
2 5/16”
WRAP WET RAGS
AROUND PIPING AT EACH
END WHEN BRAZING
ZONE VALVE
SHUTOFF BOX
IN PATIENT AREA
TO OUTLET
STATION
ISOLATION
VALVE
2” X 4”
1/2”
DRYWALL
O
2
N
2
O
Reference Only
5
PRE-INSTALLATION
2.4 PIPING SYSTEM INSTALLATION
Install piping system in accordance with local building
and fire codes. Depending on locality, adherence to
NFPA 99C or CSA 27396.1 is strongly recommended.
2.5 SUPPLY CIRCUIT CONNECTION
All electrical connections must be made to local codes
by a licensed electrician. A dedicated 15A, 115VAC, 14
All electrical connections must be made to local codes
by a licensed electrician. A dedicated 15A, 115VAC, 14
gauge supply circuit is required. This must be a
dedicated circuit due to the emergency system
requirements, rather than the amperage demands, of
the FLO-SAFE System. To install the supply line:
1. Feed dedicated branch circuit line to Manifold
Mounting Plate electrical box.
· For surface-mounted power line,
use knockout on top of box.
· For in-wall power line, use rear
center knockout.
Note: Do not use side knockouts on
electrical box.
2. Attach bushing of supplied Romex connector to
incoming cable. Insert connector through chosen
knockout and secure with connector locknut.
3. Connect supply hot line to black or brown wire using
wire connector provided.
4. Connect Supply neutral line to white or blue wire
using wire connector or provided.
5. Connect supply ground to ground post inside
electrical box. Attach ground of Manifold power cord
to same post using #6-32 nut provided.
6. Attach cover to box.
7. To facilitate future servicing, label dedicated
Manifold System supply circuit at service panel.
2.6 LOW VOLTAGE SIGNAL CABLE
Provided is 300’ of 4 conductor signal cable. Two equal
lengths run between the Manifold Mounting Plate and
Zone Valve Shutoff Box. A third length between the
Manifold mounting Plate and the Alarm panel (see figure
2). Also provided is a 6’ length of 2 conductor cable
which connects the alarm panel to the 90 dB remote
auditory alarm. Connection details found in the FLO-
SAFE Manifold & Alarm System Installation & Operation
Manual #10376600.
Reference Only
6
SYSTEM INSTALLATION
SECTION 3.0
Follow these instructions to complete system installation
only after the building trades have completed the
Pre-Installation procedures in Section 2.
3.1 WALL-MOUNTED ALARM (Figure 4)
1. Attach one end of 4" cord to connector on back of
Alarm Panel, then attach other end to connector on
Alarm Panel wall plate.
2. Insert tabs on back of Alarm Panel into slots on
Alarm Panel wall plate, then slide Alarm Panel down
into place.
3.2 DESK-MOUNTED ALARM (Figure 5)
Installation of the optional Desk-Mounted Alarm requires
kit PN 91307605
1. Remove backing from double-sided tape on support
wedges.
2. Slide metal tabs on back of Alarm Panel into slots in
support wedges. Place assembled Alarm Panel on
selected desk, making sure bottom edges of support
wedges rest on desk when Alarm Panel is upright.
3. Attach one end of 6’ cord (supplied with kit) to
connector on back of Alarm Panel, then attach other
end to connector on Alarm Panel wall plate.
3.3 CONTROL MODULE (Figure 6)
Now, install the Control Module on the Manifold
mounting plate and connect the Alarm wiring per the
following procedure while referring to Figure 6.
1. Place Control Module tabs over four studs on
Manifold mounting plate. Fasten with 6-32 nuts and
lock washers. Do not pinch power cord when
tightening.
2. At Control Module, remove 3" to 5" of gray outer
jacket from four-conductor alarm signal cable, then
strip ¼” insulation from the end of each wire.
3. Connect wires to terminal block, matching wire
colors to terminal block label, then tighten screws.
4. Insert Alarm terminal-block jack into Control Module
port (connector) marked ALARM.
3.4 MANIFOLD (Figure 6)
Now, install the Manifold in the Manifold mounting plate
and connect the wiring as detailed below.
1. Remove and discard retaining clips and cap plugs
from both gas line pigtail fittings on Manifold
mounting plate.
2. Place Manifold over 2 studs on Manifold mounting
plate and fasten 2" screws.
3. Connect Manifold DISS fittings to pigtails.
4. Insert jack of pre-wired 12-conductor cable from
Manifold into Control Module port (connector)
marked SWITCHES.
5. Insert jack of pre-wired six-conductor cable from
motor on Manifold into Control Module port marked
MOTOR.
6. Turn Manifold selector knob to 6 o’clock position.
7. Place cover on Manifold, gently spreading sides of
cover so as to clear locking tabs on sides of
Manifold mounting plate.
3.5 CYLINDERS AND REGULATORS
WARNING: Read and understand the page 1
safety instructions before attempting to
operate regulators. If you do not understand
these instructions, contact your Matrx by
Midmark dealer.
1. Mount tank restraints 40" from floor.
2. Secure tanks in tank restraints. Each cylinder
MUST be individually restrained.
3. Open and close each cylinder valve to purge foreign
materials. Contact your medical gas dealer for more
information.
FIGURE 4. Wall-Mounted Alarm Panel Installation
FIGURE 5. Desk-Mounted Alarm Panel Installation
6’ CORD
TAB
OPTIONAL
DESK-MOUNTED
ALARM PANEL
TO WALL PLATE INSTALLED 12”
MINIMUM ABOVE FLOORING
SUPPORT
WEDGES
SLOT
MX106200
4” CORD
TAB
WALL-MOUNTED
ALARM PANEL
WALLPLATE
SLOT
MX106100
Reference Only
7
SYSTEM INSTALLATION
FIGURE 6. Control Module and Manifold Installation
4. Mount a test regulator on one oxygen cylinder.
5. Mount a test regulator on one nitrous oxide cylinder
.
NOTE: Do not mount the preset regulators
supplied at this time.
6. Connect DISS oxygen and nitrous oxide flexible
hoses from test regulator outlets to Manifold inlets.
7. Install any optional Zone Valves required for the
system as discussed in Section 4. Perform the
installation checkout and operational feature
familiarization of Section 5.
8. Finally, functionally test system per Section 6
procedure. This test must be witnessed.
WARNING: After installation, the customer and
Matrx by Midmark dealer shall witness testing
of system for proper gas connections.
MX106200
MANIFOLD
MOUNTING
PLATE
LOCKING
TAB
12-CONDUCTOR
PRESSURE SWITCHES
JACK FROM MANIFOLD
TO CONTROL MODULE
“SWITCHED” PORT
6-CONDUCTOR MOTOR JACK
FROM MANIFOLD TO CONTROL
MODULE PORT LABELED “MOTOR”
IEC 320 POWER CORD
3’ TO 5”
1/4”
4-CONDUCTOR ALARM JACK
FROM ALARM PANEL TO CONTROL
MODULE PORT LABELED “ALARM”
(Installer Assembled)
MANIFOLD
COVER
MANIFOLD
CONTROL
MODULE
Reference Only
8
ZONE VALVE INSTALLATION AND TESTING
SECTION 4.0
4.1 ZONE VALVE PRE-INSTALLATION (Figure 3)
The Zone Valve Shutoff Box Kit includes the following
components:
• Shutoff Box assembly (with separately
packaged O
2
and N
2
O pressure
assemblies).................................... 1
• Bezel ............................................... 1
• Clear access panel.......................... 1
• Central supply label......................... 1
• Manual ............................................ 1
• Truss head screws #6 x ¼ .............. 4
• 100’ four-conductor alarm cable...... 2
NOTE: Do not install pressure switch
assemblies or open packages at this time.
Place packaged assemblies in Shutoff Box.
1. Feed two four-conductor signal cables from Zone
Valve Shutoff Box to Manifold mounting plate.
2. Feed both cables through plastic bushing at upper
right corner of Manifold mounting plate. Mark
both ends of each cable for proper identification.
3. Replace cardboard plaster shield in Zone Valve
Shutoff Box.
4.2 MANIFOLD SWITCH WIRING (Figure 7)
1. At the Manifold, remove shorting jumper assembly
from the terminal block labeled “Zone Valve.”
2. Remove 3" to 5" of gray outer jacket from both
four-conductor cables. Strip insulation back ¼”
on each wire.
3. Attach wires for Zone Valve to this terminal block,
jack, matching wire colors to colors on label
(see Figure 7). Tighten screws securely.
NOTE: If a Zone Valve Shutoff Box is not
installed, do not remove the shorting jumper
from terminal block.
4.3 ZONE VALVE SWITCH WIRING (Figure 8)
NOTE: The Zone Valve Shutoff box has three
wire routing holes. Three strain relief fittings
are provided with each Zone Valve in a 3" x 5"
plastic bag. Insert strain relief fittings into
holes before inserting cables.
1. At the Zone Valve, remove 8-10" of gray outer
jacket from both four-conductor cables and strip
insulation back 1/4" on each wire.
2. Remove foam packing from the pressure switch
assemblies.
3. Attach wires to terminal strips on pressure
switch assemblies, matching colors to wires on
each pressure switch (see figure 9). Tighten
terminal screws to fasten wires securely.
4. Insert oxygen pressure switch into lower section
of Zone Valve Shutoff Box.
5. Insert nitrous oxide pressure switch into upper
section of the Zone Valve Shutoff Box.
4.4 “CHAINED” ZONE VALVES (Figure 9)
1. For multiple Zone Valves, install wiring to first
Zone Valve as described in Section 4.2.
2. Run two additional four-conductor cables between
the two zone valves.
3. Remove jumpers from the second terminal strip on
both the oxygen and nitrous oxide pressure switch
assemblies.
4. Using the second pair of four-conductor cables,
attach wires to these terminal strips following the
same color code.
5. At the next Zone Valve Shutoff Box, attach four-
conductor cable wires to first terminal strips on the
oxygen and nitrous oxide pressure switch
assemblies.
6. If installing additional Zone Valves, repeat Steps 2-5.
NOTE: If “Chained” Zone Valves are not installed,
do not remove jumpers from second terminal
strip on pressure switch assemblies.
FIGURE 7. Zone Valve Terminal Block at Manifold
TWO 4-CONDUCTOR CABLES
SHORTING
JUMPER
ZONE VALVE
TERMINAL BLOCK
JACK
ZONE VALVE CONNECTOR FROM BACK
SHOWING WIRING COLOR CODE
MX105200
Reference Only
9
ZONE VALVE INSTALLATION AND TESTING
4.5 PRESSURE SWITCH TESTING
1. Test Set-Up. With the Zone Valve open and the
Manifold System turned on at the Alarm Panel (see
Section 5.4), slowly open all four cylinders, pressurizing
the system to the normal operating pressure. After
about 10 seconds, pull the Zone Valve handle to close
its two valves, isolating the Zone Valve pressure
switches from the Manifold pressure switches.
2. Low Pressure Alarm Test. To an outlet station,
connect a stem-indexed hose with a shutoff valve.
Slowly bleed down the pressure at the outlet station
until the LOW pressure visual (4, Figure 11) and
audio alarms activate. The Zone Valve gauge
pressure should be approximately 40 psi. Silence the
audio alarm (see section 5.4). Repeat for both gases.
NOTE: To perform the high pressure test, the
Zone Valve must be pressurized from the outlet
station side of the Zone Valve Box. To prevent
false alarms, make sure the Manifold side of
the Zone Valve remains pressurized at the
normal operating pressure. The Zone Valve
handle must remain closed.
3. High Pressure Alarm Test. To a controlled outlet
station, connect a stem-indexed hose with a test
regulator and cylinder capable of pressurizing the line
to 65 psi. Slowly increase pressure until the HIGH
pressure visual (4, Figure 11) and audio alarms,
activate. The Zone Valve gauge pressure should be
approximately 65 psi. Silence the audio alarm (see
section 6.4). Repeat for both gases. Slowly relieve
pressure in both lines.
4.6 FINAL INSTALLATION
1. Remove and discard the protective cover only
after the completion of wall plastering, painting,
tiling, and trim work. Be careful removing the
protective cover so that the plaster does not chip
away from the edge of the box.
2. Check that all wires are terminated, both pressure
switch assemblies are installed, and valves are open.
3. Remove the self-adhesive label from the plastic
bag in the box. Mark the area controlled on label.
4. Attach label to bezel (see figure 8).
5. Secure bezel to metal enclosure with screws
provided.
6. After pressure switch testing, remove packing from
cover and place cover in opening of bezel.
FIGURE 8. Zone Valve Final Installation and Wiring
MX107400
FLOW
NITROUS OXIDE SWITCH (BLUE)
GREEN
RED
TO GREEN
SWITCH
OXYGEN SWITCH (GREEN)
ATTACH
LABEL
COVER
BEZEL
TO
MANIFOLD
LOW (N.O.)
HIGH (N.C.)
TO BLUE
SWITCH
TWO 4-CONDUCTOR
CABLES TO
CONTROL MODULE
ZONE VALVE
SHUTOFF BOX
WHITE
BLACK
LOW (N.O.) HIGH (N.C.)
TO
OPERATORIES
O
2
N
2
O
O
2
N
2
O
Reference Only
10
ZONE VALVE INSTALLATION AND TESTING
FIGURE 11. “Chained” Zone Valve Installation
ZONE VALVE 1
REMOVE
JUMPERS
ZONE VALVE 2
WHITE
TO MANIFOLD
GREEN
BLUE NITROUS OXIDE
PRESSURE SWITCH
LOW (N.O.)
HIGH (N.C.)
BLACK
TO MANIFOLD
ZONE VALVE 1
RED
GREEN OXYGEN
PRESSURE SWITCH
HIGH (N.C.)
LOW (N.O.)
REMOVE
JUMPERS
BLACK
BLACK
RED
RED
BLUE NITROUS OXIDE
PRESSURE SWITCH
ZONE VALVE 2
GREEN OXYGEN
PRESSURE SWITCH
LOW (N.O.)
HIGH (N.C.)
LOW (N.O.)
HIGH (N.C.)
BLACK
BLACK
RED
RED
MX106400
GREEN
GREEN
WHITE
WHITE
GREEN
GREEN
WHITE
WHITE
Reference Only
11
FLO-SAFE OPERATION AND CHECKOUT
SECTION 5.0
The FLO-SAFE Manifold with Security and without
Security are operated using controls on the Alarm Panel
and Control Module. The Alarm Panel and the Control
Module are touch panels. To operate, touch the graphics
or icon on the panel that depicts the desired function.
(For examples, see Figure 10) In the detailed operating
procedures that follow, the numbers in parentheses
following the names of indicators are “find” numbers that
are keyed to the referenced illustration.
5.1 ACTIVATING THE SYSTEM (Figure 11 to 13)
1. Turn on main power at the circuit breaker.
2. At the Manifold, turn the selector knob (Figure 14)
to 6 o’clock.
3. Open the cylinder valves.
4. Insert power cord into right side of Control Module.
The POWER ON indicator (Figure 12) should light.
FIGURE 12. Quick Operating Guide
STARTING FLO-SAFE (5.1)
ALARM
WITH SECURITY
ALARM
WITHOUT SECURITY
DEACTIVATING FLO-SAFE (5.2)
STEP 2
GAS INDICATORS
GO OFF
STEP 1
TOGGLE
ON/OFF TO OFF
STEP 3
MANUALLY CLOSE
GAS VALVE
STEP 10
INDICATES
GASSES
ACTIVATED
STEP 11
TANK IN USE
INDICATOR
LIGHT
STEP 9
PRESS
ON/OFF
STEP 6
SECURITY
LIGHTS
STEP 7
ENTER
SECURITY
CODE
STEP 5
PRESS ON/OFF
STEP 8
PRESS ON/OFF AGAIN
STEP 2
SET SELECTOR
KNOB TO 6 O’CLOCK
MX106500
Reference Only
12
FLO-SAFE OPERATION AND CHECKOUT
3. After the test sequence, the SECURITY (2) indicator
will illuminate.
4. Enter a new security code of up to four digits using
the Code Control (3) buttons.
5. Press the ON/OFF (1) button again.
6. The system will save the new code, then deactivate.
To reactivate the system using the new code, follow
Section 5.1.
NOTE: Allow 20 seconds for processing and
storing after entering a new code before
reactivating FLO-SAFE with the new code.
5.4 ALARM FEATURES (Figure 11)
1. ON/OFF: FLO-SAFE’s primary ON/OFF control.
Press this touch button to turn the system on or off.
2. SECURITY: This icon illuminates to indicate that
thecode must now be entered to complete
activation. To change the code, see Section 5.3.
3. CODE CONTROL BUTTONS 1, 2, 3: These
buttons are used to enter the selected security
code or factory default code (1) to complete
activation of the unit.
4. HIGH/LOW PRESSURE INDICATORS: When
nitrousoxide or oxygen pressure at the Manifold
exceeds 65 psi or drops below 40 psi, Alarm
sounds an audible, repeating “beep” and illuminates
the appropriate HIGH or LOW indicator. Correcting
the problem causes the indicator to return to
NORM, automatically silencing the beeper.
5. TEST/SILENCE ICON: During an alarm, press this
icon to silence the alarm beeper. If no alarm is in
progress, pressing this icon starts the test sequence,
which consists of a single response beep and the
illumination of each indicator in the following
sequence: LOW, NORM, HIGH, NO RESERVE,
SYSTEM STATUS, A, B, C, and SECURITY. The
Alarm Panel performs a self-test whenever activated.
Test each day before beginning use. If the test
sequence is not normal, call for service.
6. NO RESERVE: When either of there icons
illuminates, the reserve gas supply is exhausted.
The upper icon indicates reserve status of the nitrous
oxide supply; the lower icon is the oxygen reserve.
7. SYSTEM STATUS INDICATORS: If an
abnormal situation arises, the SYSTEM STATUS
indicator (7) and one or more of the letters A, B,
or C will illuminate. See Section 8, Troubleshooting,
for description.
Alarm with Security (Figure 13)
5. At the Alarm Panel, press the ON/OFF (1) control.
Note: An audible “beep” occurs each
time on Alarm Panel button is pressed.
6. The SECURITY (2) indicator will illuminate to
indicate a security code must be entered.
7. Enter the security code using the Code Control (3)
buttons. (See section 5.3 to change the code, or
Section 5.6 if you have forgotten the code.)
8. Press the ON/OFF (1) control again.
A) If the security code is correct, SECURITY (2)
indicator goes off, and both the NITROUS OXIDE
and OXYGEN pressure indicators (4) will illuminate,
indicating that the Manifold is supplying gas to the
patient area.
B) If the SECURITY indicator (2) remains
illuminated, the code was incorrect. Re-enter code.
9. When powering up the system for the first time, you
must do a global reset as detailed in Section 8.3
CAUTION: FLO-SAFE will not operate properly
unless a global reset is done when the unit is
first powered up and after correction of main
power problem such as a blown fuse.
Alarm without Security (Figure 11)
10.Press the ON/OFF (1) button. The NITROUS OXIDE
and OXYGEN pressure indicators (4) will illuminate.
11. At the manifold, the appropriate SELECTED (in
use) tank indicator arrows (3 & 7, Figure 13) will
illuminate to show which tanks have been selected.
5.2 DEACTIVATING THE SYSTEM
1. At the Alarm Panel, press the ON/OFF (1) button.
2. The NITROUS OXIDE and OXYGEN pressure
indicators (4) will go ofF (extinguish), indicating
that the Manifold is no longer supplying gas.
3. At the Manifold, close all the cylinder valves by
turning clockwise until completely closed.
5.3 CHANGING SECURITY CODE (Figure 11)
1. Activate FLO-SAFE at the Alarm Panel by pressing
ON/OFF button (1). Press and hold Alarm Test/
Silence button (5).
2. Press and release the ON/OFF (1) button. Release
the Test/Silence control (5) button.
Reference Only
13
FLO-SAFE OPERATION AND CHECKOUT
5.5 MANIFOLD FEATURES (Figure 12)
1. PROPORTIONAL FAIL-SAFE: A safety feature,
the Proportional Fail-Safe assures that nitrous oxide
line pressure never exceeds that of oxygen.
2. PRESSURE GAUGES: Gauges for nitrous oxide
and oxygen indicate the pressure of the pipeline in
pounds per square inch (psi).
3. MANUAL OVERRIDE: Overrides automatic tank
selection function of the Manifold. In the event of a
power failure or other unusual condition, it permits
gas flow to the patient area. Manually turn the
selector knob to the 12 o’clock position and align
the pointer with the blue mark on the Manifold cover
to select all four tanks simultaneously. Use this
function only when necessary, as it can compromise
reserve tank(s) integrity.
NOTE: During periods of extremely high gas
usage, such as normal usage combined with
oxygen flushes, a Low Pressure alarm may
activate due to a brief system pressure drop.
The FLO-SAFE Manifold has a built-in ten
second delay to help avoid erroneous tank
switchovers during such conditions.
The selector switch used to operate manually (12
o’clock) or automatically (6 o’clock) is a six-position
switch. Figure 12 shows the tank open/closed
configuration in the other switch positions.
FIGURE 11. Alarm Panel Controls
FIGURE 12. Manifold Controls and Indicators
(4) PRESSURE
INDICATOR
(6) NO RESERVE
INDICATOR
(7) SYSTEM
STATUS
INDICATOR
(3) CODE
CONTROL
(5) TEST
SILENCE
CONTROL
(2) SECURITY
INDICATOR
(1) ON/OFF
CONTROL
MX106600
CONTROL MODULE
SELECTOR KNOB
O
2
GAUGE
N
2
O GAUGE
MX106700
Reference Only
14
FLO-SAFE OPERATION AND CHECKOUT
5.6 CONTROL MODULE FEATURES (Figure 13)
1. Code Reset: If the security code is forgotten, the
unit can be reprogrammed to the factory code, which
is 1, by depressing the Code Reset button (1) on the
Manifold. Carefully insert a thin pen or tool into the
hole just above the words MANUAL OVERRIDE and
gently depress the button. Code Reset must also be
depressed simultaneously with both Service buttons
to perform a global reset.
2 & 6. SERVICE Buttons: Two buttons, labeled PRESS
AFTER REPLACING N
2
O TANK and PRESS
AFTER REPLACING O
2
TANK, are the Service
buttons. To test all indicators for either gas, hold the
button down. All the indicators will illuminate
simultaneously. Releasing the button clears the
EMPTY indicators for that gas. To reset the Manifold
after using the Manual Override feature, press both
buttons simultaneously. The Service buttons (and the
Code Reset button (1)) are also used to globally
reset the FLO-SAFE computer. A global reset is
required at initial start-up, before calibration and
whenever electrical power is interrupted.
3 & 7. TANK Indicators: There are two indicators for
each tank. SELECTED indicates which tank is in
use; EMPTY indicates which tank is considered
empty by the Manifold. The NO RESERVE indicator
on the Alarm will illuminate when the EMPTY
indicator is illuminated at the Manifold. A tank is
considered empty when the Manifold senses low
pressure for 10 seconds while that tank is selected.
If low pressure exists when the system is activated,
a two-minute delay occurs before the EMPTY
indicator illuminates to allow the user to open the
cylinder valve and/or allow the system to fill with gas,
thus avoiding a false EMPTY reading.
4. POWER ON Indicator: Lights when main power is
applied.
5. MANUAL OVERRIDE Indicator: Illuminates at the
Manifold when the selector knob is aligned with the
blue mark at 12 o’clock on the Manifold cover. The
PRESSURE indicators and NO RESERVE indicators
will illuminate at the Alarm Panel, according to the
gas pressure. To resume automatic operation, press
both Service buttons on the Manifold Control Panel
or the ON/OFF button on the Alarm.
8. SYSTEM STATUS Indicators: If an abnormal
situation arises, the SYSTEM STATUS indicator and
one or more of the letters A, B or C will illuminate.
See Section 8, Troubleshooting, for code
descriptions.
9. PRESSURE Indicators: These four indicators are
hard wired to the pressure switches and illuminate if
there is a break anywhere in the switch circuit. They
are visible only with the Manifold cover removed.
Power Supply with Fuse: The power supply and main
connector with a replaceable fuse are enclosed in
the Control Module. See Section 7.1 for fuse
replacement instructions.
FIGURE 13. Control Module Controls and Indicators
MX106800
(8) SYSTEM STATUS
INDICATOR
(4) POWER ON
INDICATOR
(9) PRESSURE
SWITCH INDICATORS
(7) NITROUS
OXIDE
TANK
INDICATOR
(6) NITROUS OXIDE
RESET BUTTON
(5) MANUAL
OVERRIDE INDICATOR
(1) CODE
RESET BUTTON
(2) OXYGEN
SERVICE BUTTON
(3) OXYGEN
TANK
INDICATOR
Reference Only
15
SYSTEM FUNCTIONAL TESTING
SECTION 6.0
NOTE: The National Fire Protection Association
(NFPA) requires a 24 hour standing pressure
leak test at 55 psi with the intended use gases.
Refer to NFPA 99, 1996 Edition, Section
4-5.4.1.3 Check your local inspection
requirements before testing.
NOTE: Use test regulators for the following tests.
Do not use the preset regulators supplied.
NOTE: If installing a Zone Valve Shutoff
assembly, see Section 5.0 before performing
the tests in Section 4.0.
WARNING: Always hold free end of hose.
“Hose whip” may cause serious injury.
6.1 TEST SETUP (Figure 14)
1. Remove Manifold cover.
2. Turn selector knob to 12 o’clock position.
3. Make sure Zone Valve is open (if installed).
4. Slowly and carefully turn oxygen cylinder valve
counterclockwise until you hear oxygen begin to flow
into test regulator. Wait about 10 seconds, then open
cylinder valve fully. Repeat for nitrous oxide cylinder.
WARNING: When opening a cylinder valve,
never stand in front of or behind a regulator.
(Stand opposite the line from the regulator to
the Manifold). Always stand so the cylinder
valve is between you and the regulator.
Always open the cylinder valve slowly.
5. Adjust both test regulators to 55 psi.
6. Check for obvious leaks throughout the entire
piping system.
7. Turn selector knob to 6 o’clock position.
8. Turn the Manifold Alarm ON at the Alarm Panel.
There should be no alarms at the normal
operating pressure.
9. The system is now ready for testing.
FIGURE 14. Setup and Function Test
MX106900
STEP 1
REMOVE
MANIFOLD COVER
STEP 8
TURN ALARM ON
PRESS TO
SILENCE
ALARM
STEP 7
SET SELECTOR
TO 6 O’CLOCK
STEP 4
OPEN
CYLINDER VALVE
N
2
O
O
2
STEP 4
OPEN
CYLINDER VALVE
STEP 2
SET SELECTOR
TO 12 O’CLOCK
MANIFOLD
Reference Only
16
SYSTEM FUNCTIONAL TESTING
6.2 CROSS CONNECTION TEST
When system installation is complete (FLO-SAFE
Manifold and Alarm and all piping and outlet stations to
the operatories installed and leak tested), a cross
connection test shall be run and witnessed by the
customer and/or Matrx dealer. The procedure that
follows assures that gas lines have not been crossed
during installation. These tests must be conducted
before clinical used of the system.
1. Exhaust gas from the entire Manifold system by
sequentially connecting an indexed hose to each
outlet station.
2. Test the oxygen circuit. Open all oxygen cylinder
valves; close all nitrous oxide cylinder valves.
3. Turn ON FLO-SAFE at the Alarm Panel. Silence
the alarm by depressing the alarm silence icon on
the Alarm Panel (see Figure 14).
4. Exhaust all nitrous oxide gas from the entire system
by sequentially connecting an indexed gas hose to
each nitrous oxide outlet station.
5. Verify the following:
· All gas cylinders are individually restrained
to the wall.
· Manifold oxygen gauge reads 50 to 55 psi.
· Manifold nitrous oxide gauge reads 0 psi.
6. Test for crossed gas lines by connecting an indexed
gas hose to each outlet station in all areas and
verifying that:
· There is no oxygen flow at each O
2
outlet
station.
· There is no nitrous oxide flow at each
N
2
O outlet station.
7. This completes the oxygen portion of the crossed
lines test. Exhaust all gas from the entire Manifold
system sequentially connecting an indexed hose to
each outlet station.
8. Next, test the nitrous oxide circuit. Open all nitrous
oxide cylinder valves; close all oxygen cylinder
valves.
9. Turn ON FLO-SAFE at the Alarm Panel. Silence the
alarm by depressing the alarm silence icon on the
Alarm Panel (see Figure 14).
10.Exhaust all oxygen from the entire system by
sequentially connecting an indexed gas hose to
each oxygen outlet station.
11. Verify the following:
· All gas cylinders are individually restrained
to the wall.
· Manifold nitrous oxide gauge reads
50 to 55 psi.
· Manifold oxygen gauge reads 0 psi.
12.Test for crossed gas lines by connecting an
indexed gas hose to each outlet station in all
areas and verifying that:
· There is nitrous oxide flow at each N
2
O
outlet station.
· There is no oxygen flow at each O
2
outlet station.
13.This completes the crossed lines test. Exhaust all
gas from the entire Manifold system by sequentially
connecting an indexed hose to each outlet station.
6.2 TESTING THE MANIFOLD ALARMS
NOTE: Due to the proportional Fail-Safe
feature, the following order of alarm testing
must be followed:
1. Oxygen High Alarm
2. Nitrous Oxide High Alarm
3. Nitrous Oxide Low Alarm
4. Oxygen Low Alarm
WARNING: During high pressure alarm testing
do not pressurize the system higher
than the high pressure switch point (65 psi).
Manifold pressure should never exceed 72 psi.
1. Test the Oxygen High Alarm.
Using the oxygen cylinder test regulator, slowly
increase the oxygen pressure to the Manifold until
the oxygen high pressure visual and audio alarms
activate. The pressure reading on the Manifold
oxygen pressure gauge should be approximately
65 psi. Silence the audio alarm at the Alarm Panel
(see Figure 14).
2. Test the Nitrous Oxide High Alarm
Keep the oxygen pressure at is high alarm set point
from the preceding step. Using the nitrous oxide
cylinder test regulator, slowly increase the nitrous
oxide pressure until the nitrous oxide high pressure
visual and audio alarms activate. The pressure
reading on the Manifold nitrous oxide pressure
gauge should be approximately 65 psi. Silence the
audio alarm at the Alarm Panel (see Figure 14).
Reference Only
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
/
