Tri-Tech Medical

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Tri-Tech Medical

• Medical Gas Alarm Panel
• Conversion Kits

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Why convert?

• Present alarm is not NFPA compliant
• Present alarm is not functioning properly and
  replacement / repair parts are not available
• Received notice years ago from Hill-Rom about an
  alarm that can overheat and smoke or flame, and
  finally have money allocated to do something
  about it

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Why convert?

• Need to add gases to a zone of the hospital, and
  present alarm cannot be expanded
• Need to link source alarm signals to Building
  Management System, and present alarm cannot
  provide that
• Need to set up PC based interfacing of hospital
  alarm systems, and present alarms cannot provide
  that
• Need to utilize existing alarm back box and
  allocated space to make any upgrades

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Tri-Tech DU/DC Series Alarm Conversions

• Area Alarms
• Master Alarms
• Combination Alarms
• Convert from most major brands, including Ohio
  Medical, Chemetron, Amico, and both Tri-Tech
  older versions
• Get a fully functioning, NFPA compliant,
  state-of-the-art Tri-Tech DU/DC series alarm

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Conversion processDetermine sizing/configuration
of alarm to be converted

• Determine make, model, number of area modules and
  master signals of old alarm
• Measure alarm panel - dimensions of back box and
  front panel
• Know how the converted alarm should be configured
• More or different area alarm gas modules?
• More master alarm signals?
• Combination alarm?
• Building management interface?
• TNET?

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Conversion processChoose the Tri-Tech
conversion that best fits the need

• Three different standard sizes of Tri-Tech alarm
  panels, with corresponding number of area alarm
  and master alarm modules
• 2 slot
• 3 slot
• 5 slot
• Three different standard sizes of sub-mounting
  plates that correspond with those three sizes
• Choose Tri-Tech conversion alarm panel
• Unusual sizing? Standard conversion might still
  work!
• Customized conversions and trim pieces are
  possible.
• Call Tri-Tech for assistance.

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Conversion processChoose the Tri-Tech
conversion that best fits the need

• 2 slot sub-mounting plate
• 3 slot sub-mounting plate
• 5 slot sub-mounting plate

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Conversion processDisconnect/Remove existing
components

• Shut off and disconnect electrical power to the
  alarm
• For Area Alarm, locate zone valves that provide
  gas to the alarm transducers, and shut off gas
  service
• If Tri-Tech AU/AC series alarm, no need to shut
  off power or gas
• We have made some live Area Alarm conversion
  kits that would not require shutting down the gas
  services, but this should be considered only when
  absolutely necessary
• Label each Area Alarm transducer location with
  gas service!
• Locate and remove existing Area Alarm
  transducers. Remove all non-DISS gas specific
  demand valve couplings.

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Conversion processDisconnect/Remove existing
components.

• Disconnect and remove existing power supply
• If Tri-Tech AU/AC series, do not remove the power
  supply
• Remove existing front panel
• If existing front panel houses signal wiring for
  Master Alarm, label/record all source wire
  positions

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Conversion processInstall Tri-Tech Transducers
with connectors

• Included in all Area Alarm conversions are parts
  needed to properly install Tri-Tech transducers
• Couplers for DISS demand checks
• 90 transducer connections
• If using a coupler, make sure gas service matches
  DISS demand check valve - gas ID is stamped on
  DISS demand check valve
• If transducers are mounted remotely, follow
  Appendix A of DU/DC Medical Gas Alarm
  installation manual

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Conversion processInstall Mounting Flange with
power supply

• Power supply comes pre-installed on the flange of
  the sub-mounting plate, but can be moved to
  different sides of sub-mounting plate
• As long as power supply fits in back box with
  transducers, sub-mounting plate/conversion alarm
  can be positioned as needed
• With conversion from Tri-Tech AU/AC series
  alarms, use existing power supply and no
  sub-mounting plate needed
• Position and install sub-mounting plate with
  power supply over back box
• Mark 4 drill holes
• Make sure no utility services behind
• Make sure it is level
• Drill holes
• With provided mollie bolts, install sub-mounting
  plate
• Connect the three wires from the power supply to
  the 110 VAC supply wires using wire nuts

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Conversion processInstall Tri-Tech Medical
alarm front panel

• Insert new front panel over the two hinges and
  attached lanyards to the flange screw mounts
• Carefully connect CPU wiring harness, making sure
  it is properly aligned
• Attach the grounding wires

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Conversion processConnect transducer and/or
remote signal wires

• Install the two wires from each transducer to the
  labeled BLK and WHT sensor slots
• Install existing master signal wires into the NC
  labeled positions and the common wires into the C
  labeled positions. Follow same order as old panel
  had
• If old master boards had been in back box, move
  wires from old points to new alarm connector
  points, and then remove old master boards

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Complete the installation

• Label the front panel as needed
• Restore electrical power and medical gases to the
  alarm panel
• Make sure fuse is installed on the power supply
  and turn alarm on
• Program if necessary
• Area Alarm modules come pre-programmed
• Master alarm points are programmed normally
  closed and all signals active
• Test functioning and cross-connections

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Completed conversion
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Troubleshooting tips

• The alarm you need to convert is not shown in our
  catalog page
• - Chances are Tri-Tech has a conversion that
  will work
• - Compare the back box dimensions with the
  sub-mounting plates
• - Know your riser connections
• - Send us pictures
• The conversion needs to fit in a very tight /
  limited space
• - Tri-Tech conversion provides different
  mounting options
• - Power supply can be positioned in different
  positions on the sub-mounting plate
• - Sub-mounting plate can be positioned
  anywhere over the back box
• The existing alarm has a large or a very small
  back box
• - Additional backing plate can be installed
  behind the sub-mounting plate to cover over
  the existing alarm back box cavity
• - It might be possible to cut out some wall to
  house the power supply, and transducers
  could still fit or could be mounted remotely.
  Unique accommodations are possible.
• Transducers mounted remotely, or cannot be
  accessed
• - Tri-Tech transducers can be mounted remotely
  and wired to the conversion panel
• - New construction transducers can be supplied
  with risers to mount in the pipeline
• When in doubt, call us or send us pictures
• - Pictures tell a thousand words
• - We are a knowledgeable bunch here at
  Tri-Tech

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NFPA 5.1.9 Level 1 Warning Systems

• All master, area local alarm systems used for
  medical gas vacuum systems shall include the
  following
• Separate visual indicators for each condition
  monitored (except as permitted in 5.1.9.5.2)
• Visual indicators that remain in alarm until the
  situation that had caused the alarm is resolved
• A cancelable audible indication of each alarm
  condition that produces a sound with a minimum of
  80 dBA _at_ 3 ft
• A means to visually indicate a lamp or LED
  failure
• Visual audible indication that the wiring to an
  alarm initiating device is disconnected
• Labeling of each indicator, indicating the
  condition monitored
• Labeling of each alarm panel for its area of
  surveillance
• Re-initiation of the audible signal if another
  alarm condition occurs while the audible alarm is
  silenced
• Powered by the Life Safety branch of the
  emergency electrical system
• Power for local alarms, dew point sensors, CO
  sensors permitted to be from the same essential
  electrical branch as is used to power the air
  compressor
• Wiring from switches or sensors that is
  supervised or protected as required by Sect
  517.30 (C) (3) of NFPA 70
• Assurance by the responsible authority of the
  facility that the labeling of the alarms, where
  room s or designations are used, is accurate
  up-to-date
• Provisions for automatic restart after a power
  loss of 10 seconds without giving false signals
  or requiring manual reset

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NFPA 5.1.9.3 Area Alarms

• Area alarm panels shall be provided to monitor
  all medical gas, medical-surgical vacuum, and
  piped WAGD systems supplying anesthetizing
  locations, and other vital life support and
  critical areas
• 5.1.9.3.1 Area alarms shall be located at a
  nurses station or other similar location that
  will provide for surveillance
• 5.1.9.3.2 Area alarm panels for medical gas
  systems shall indicate if the pressure in the
  lines in the area being monitored increases or
  decreases by 20 from the normal line pressure
• 5.1.9.3.3 Area alarm panels for medical-surgical
  vacuum systems shall indicate if the vacuum in
  the area drops to or below 300 mm (12 in Hg)
• 5.1.9.3.4 Sensors for area alarms shall be
  located as follows
• Vital life support critical areas shall have
  the alarm sensors installed on the patient or use
  side of any of the individual zone valve box
  assemblies
• Areas for anesthetizing gas delivery shall have
  the sensors installed either on the source side
  of any of the individual room zone valve box
  assemblies or on the patient or use side of each
  of the individual zone valve assemblies
• The placement of the sensors shall not be
  affected by valves located in areas accessible to
  authorized personnel only, such as service valves

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NFPA 5.1.9.2 Master Alarms

• A master alarm system shall be provided to
  monitor the operation and condition of the source
  supply, the reserve source, and the pressure in
  the main lines of each medical gas vacuum
  piping system
• The master alarm system shall consist of two or
  more alarm panels located in at least two
  separate locations as follows
• One master alarm panel shall be located in the
  office or work space of the on-site individual
  responsible for the maintenance of the medical
  gas vacuum systems
• The second master alarm panel shall be located in
  an area of continuous observation
• 5.1.9.2.2 A centralized computer system shall be
  permitted to be substituted for one of the master
  alarms, if it complies with 5.1.9.4
• 5.1.9.2.3 The master alarm panels shall connect
  directly to the alarm devices they monitor
• 5.1.9.2.3.1 Master alarm signals shall not be
  relayed from one master alarm panel to another
• 5.1.9.2.3.2 Where multi-pole alarm relays are
  used to isolate the alarm initiating signals to
  master alarm panels, the control power source for
  the relays shall be independent of any of the
  master alarm panels
• 5.1.9.2.3.3 Multiple master alarms shall be
  permitted to monitor a single initiating device

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NFPA 5.1.9.2 Master Alarms

• 5.1.9.2.4 Master alarm panels for medical gas
  vacuum systems shall each include the following
  signals
• An alarm condition when or just before changeover
  occurs in a medical gas system that is supplied
  by a manifold or other alternating-type bulk
  system that has as a part of its normal operation
  a changeover from one portion of the operating
  supply to another
• An alarm indication for a bulk cryogenic liquid
  system when the main supply reaches an average
  days supply, indicating low contents
• An alarm indication when or just before the
  changeover to the reserve supply occurs in a
  medical gas system that consists of one or more
  units that continuously supply the piping system
  while another unit remains as the reserve supply
  operates only in the case of an emergency
• An alarm indication for cylinder reserve pressure
  low when the content of a cylinder reserve header
  is reduced below one days supply
• For bulk cryogenic liquid systems, an alarm when
  or at a predetermined set point before the
  reserve supply contents fall to one days average
  supply, indicating reserve low
• Where a cryogenic liquid storage is used as a
  reserve for a bulk supply system, an alarm
  indication when the gas pressure available in the
  reserve unit is below that required for the
  medical gas system to function
• An alarm indication when the pressure in the main
  line of each separate medical gas system
  increases 20 or decreases 20 from the normal
  operating pressure

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NFPA 5.1.9.2 Master Alarms

• 5.1.9.2.4 Master alarm panels for medical gas
  vacuum systems shall each include the following
  signals
• An alarm indication when the medical-surgical
  vacuum pressure in the main line of each vacuum
  system drops to or below 300 mm (12 inHg)
• An alarm indication(s) from the local alarm
  panel(s) as described in 5.1.9.5.2 to indicate
  when one or more of the conditions being
  monitored at a site is in alarm
• A medical air dew point high alarm from each
  compressor site to indicate when the line
  pressure dew point is greater than 2 C (35
  F)
• A WAGD low alarm when the WAGD vacuum level or
  flow is below effective operating limits
• An instrument air dew point high alarm from each
  compressor site to indicate when the line
  pressure dew point is greater than -30C (-22F)
• 5.1.9.2.5 The alarm indications required in
  5.1.9.2.4(7) and 5.1.9.2.4(8) shall originate
  from sensors installed in the main lines
  immediately downstream of the source valves.
  Where it is necessary to install a main line
  valve in addition to a source valve, the sensors
  shall be located downstream of the main valve.

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Thank-you!