BeaconMedaes Gem 10 User manual
Installation Instructions
Part number 1827420
Revision 3
07/10/09
Installation InstructionsGem 10 AGS Terminal Unit
0088
Page 2
Table of Contents
General Installation
3 Description
3 Operation
3 Safety information
3 Installation procedure - Wall mounted, surface and concealed
4 Installation procedure - Bed head
4 Installation procedure - Pendant/Boom
5 Installation procedure - Second fix
Safety, Storage and Handling Data
The following symbols apply to this product and are used
in these instructions and on the product in question. The
meanings of these symbols are as specified below: -
Environmental Transport and Storage Conditions
Min ambient temperature - 0 degrees Celsius
Max ambient temperature - 40 degrees Celsius
Min relative humidity (non-condensing) - 10%
Max relative humidity (non-condensing) - 95%
Atmospheric pressure range - 70-110 kPa
Environmental Operating Conditions
Min ambient temperature - 0 degrees Celsius
Max ambient temperature - 40 degrees Celsius
Min relative humidity (non-condensing) - 10%
Max relative humidity (non-condensing) - 95%
Atmospheric pressure range - 70-110 kPa
Environmental Protection
Discard the unit and/or components in any standard refuse
facility. The unit does not contain and hazardous substances.
Page 3
Description and Operation
BEACONMEDÆS Anaesthetic Gas Scavenging (AGS) terminal
units are designed to fully comply with BS6834:1987 and
accept probes to the same standard, their installation fully
satisfies the United Kingdom Health Technical
Memorandum’s HTM2022 and HTM02-01. AGS terminal
units are used as outlets to fixed pipeline installations to
supply a maximum flow rate of 130 L/min. with a 1kPa
pressure drop applied and make a connection point
between a suitable receiver unit and disposal system
pipeline. AGS terminal units may be wall mounted, for use
with either surface or concealed pipeline installations or
fitted inside a bed head trunking and pendant assemblies.
Each terminal unit is designed to be fully gas specific, with
gas specific sub-components to prevent inadvertent incorrect
assembly with Medical gas services. The BEACONMEDÆS
AGS terminal units will only accept the correct service
probe, thereby preventing inadvertent operator error. Gem
10 terminal units are clearly identified in accordance with
BS6834:1987 and are subject to comprehensive QA controls
during manufacture with batch numbers allocated to the
assemblies to provide traceability.
Operating Instructions
The probe is attached by pushing in fully home into the
terminal unit and screwing the retaining nut loosely onto
the second fix using hand pressure only. The probe pushes
the valve plug of its seat and allows a flow of gas through the
flow adjustable valve plug. This plug is specifically designed
to provide an adjustable device allowing for fine tuning of
the terminal unit to achieve the correct flow.
Safety Information
WARNING
DO NOT USE OIL OR GREASE ON ANY NIST FOR ANY
REASON! DOING SO COULD LEAD TO A FIRE OR EX-
PLOSION!
Use only approved oxygen compatible lubricants, which can
be purchased from BeaconMedæs if necessary.
Testing
All testing and commissioning should be completed in
accordance with the installation contract.
Installation of Wall and Bed Head Mounted Units
General requirements
Vertically mounted terminal units are installed in the
location and the quantity detailed in the contract
specification, however the following requirements should be
met unless otherwise stated:-
Terminal units shall be located at a height of between
900mm and 1400mm above finished floor level to the centre
line of the terminal unit.
Multi-gas terminal unit installations when vertically
mounted shall be spaced at 135 ± 2.5mm between centres.
The centre of a vertically mounted terminal unit shall be not
less than 200mm from any possible obstruction on either
side.
Wall mounted terminal units shall be housed in either
individual or common (multi-gas) fascia plates.
Vertically mounted terminal units shall be mounted, when
facing the units, in the following order, horizontally from left
to right or vertically from top to bottom: -
O2, N2O, O2/N2O, Medical Air, Surgical Air, CO2, N2, VAC,
AGS.
Installation procedure – surface and concealed
A single gas terminal unit required as a concealed
installation requires a chase 95mm square to a depth of
50mm including plaster depth and a chase suitable for the
15mm downdrop pipe). Surface terminal units are installed
separately and attach directly to the wall. In both cases care
must be taken to ensure that each individual terminal unit
is correctly aligned and square, and correct spacing between
centres must be maintained. Multiple concealed terminal
units are mounted on a multiple gas jig plate, which must
be installed first. The procedure to install a BEACONMEDÆS
AGS terminal unit 1st fix assembly is as follows: -
Single terminal unit (concealed). Chase.
Identify correct location. Accurately chase wall 95mm square
to a depth of 50mm including plaster depth and chase wall
suitable for downdrop pipe. Ensure that chase depth enables
terminal unit to be located squarely.
Single terminal unit (surface and concealed).
Locate backplate. Oer terminal unit to wall, check
location, alignment and correct spacing. Ensure that stub
pipe aligns with downdrop pipe. Mark position of securing
holes (4 - o provided, normally two are sucient). In the
event that the stub pipe needs shortening do this now using
a wheel cutter. Ensure that ends are square, free from burrs
and re-round as necessary. Ensure that component is clean
and blow through as necessary to remove any particles.
Distribution system. Purge.
Using Medical quality air, purge downdrop pipe and
associated distribution system to remove all particulate
matter prior to fitting terminal unit.
Single terminal unit (surface and concealed). Fit.
Drill wall and fit anchors. Locate backplate, align stub pipe
with downdrop pipe, fit securing screws and tighten.
Multi-terminal units (concealed). Fit.
Locate backplate on multiple gas jig plate securing studs (2
- o). Ensure that stub pipe aligns with downdrop pipe. Fit
Page 4
nuts (2 - o) and fully tighten.
Stub pipe. Braze to downdrop pipe.
Using the approved jointing technique as detailed in the
contract specification, braze stub pipe to downdrop pipe.
With HTM 2022, HTM02-01 installations the copper stub
pipe is joined using the fluxless brazing technique with
Oxygen-free nitrogen purge.
Care should be taken when working in confined spaces,
precautions should be taken to avoid excessive build up of
nitrogen.
Note...
If the stub pipe has been reduced in length by any more than
100mm the plastic backplate must be protected against
contact with the brazing flame to avoid damage occurring.
Proprietary reusable heat shield compounds are available for
this purpose.
Terminal unit. Blank.
Fit blanking kit assembly Part No. 1825190 to terminal unit.
Note...
This will completely seal o the assembly ready for pipeline
carcass pressure testing.
Plaster box. Fit.
Locate plaster box over backplate and press into position.
Terminal unit. Pressure check.
When all first fix terminal units on a specific distribution
system have been installed, carry out pipeline carcass
pressure testing in accordance with the commissioning
procedure.
Plaster shield. Fit.
Locate plaster shield into plaster box and press into position.
Installation procedure - Bed head installation
Bed head trunking must provide suitable mounting studs to
enable the terminal unit backplate to be firmly secured. The
procedure to install a BEACONMEDÆS AGS terminal unit first
fix assembly within bed head trunking is as follows: -
Distribution system. Purge.
Using Medical quality air, purge associated distribution
system to remove all particulate matter prior to fitting
terminal unit.
Terminal unit. Locate pipe run.
Temporarily locate terminal unit backplate over securing
studs and align pipework. Establish necessary pipe run
layout and mark copper stub pipe for length required. Re-
move terminal unit assembly.
Copper stub pipe. Cut to length.
Using a wheel cutter, cut copper stub pipe to required
length. Ensure that ends are square, free from burrs and
re-round as necessary. Ensure that component is clean and
blow through as necessary to remove any particles.
Terminal unit. Fit.
Using any necessary copper pipe fittings, align copper stub
pipe with distribution system layout. Locate terminal unit
backplate over securing studs. Fit nuts (2 - o) and tighten.
Stub pipe. Braze to distribution system.
Using the approved jointing technique as detailed as
detailed in the contract specification, braze stub pipe to
distribution system and any fittings used. Care must be
taken to prevent heat damage to the terminal unit, bed head
trunking and any associated structure, electrical wiring etc.
Proprietary reusable heat shield compounds are available for
this purpose. With HTM 2022, HTM02-01 installations the
copper stub pipe is joined using the fluxless brazing
technique with Oxygen-free Nitrogen purge.
Care should be taken when working in confined spaces,
precautions should be taken to avoid excessive build up of
nitrogen.
Terminal unit. Blank.
Fit blanking kit assembly Part No. 1825190 to terminal unit.
Note...
This will completely seal o the assembly ready for pipeline
carcass pressure testing.
Terminal unit. Pressure check.
When all first fix terminal units on a specific distribution
system have been installed, carry out pipeline carcass
pressure testing in accordance with the commissioning
procedure.
Installation of Pendant Units
General requirements.
Pendant/Boom mounted AGS terminal units are installed in
the location and the quantity detailed in the contract
specification, however the following requirements should be
met unless otherwise stated: -
Terminal units should be securely fastened to a mounting
plate contained within the pendant.
The construction of the pendant should provide for
segregation of gases and electric’s, and provided with
Page 5
adequate ventilation to allow escape of gas in the event of
rupture of any of the gases.
Vertically mounted terminal units shall be mounted, when
facing the units, in the following order, horizontally from left
to right or vertically from top to bottom: -
O2, N2O, O2/N2O, Medical Air, Surgical Air, VAC, AGS.
When terminal units are mounted in a circular array on the
under surface of a pendant the sequence is as for vertically
mounted units but in a clockwise direction when viewed
from below. The AGS terminal unit may occupy the centre
of such an array.
Installation procedure
Terminal Unit. Fit. Fix to terminal unit mounting plate
contained within the pendant/boom with 2 - M4 bolts, nuts
and washers.
Hose Assembly. Connect.
Connect the gas specific NIST nut of each terminal unit to its
respective gas specific hose assembly.
Terminal unit. Commissioning.
Carry out the commissioning procedure when all terminal
units and hose assemblies have been fitted.
Installation of A Second Fix Assembly
General requirements.
The second fix assembly should only be fitted to the first fix
assembly when the wall surface, pendant, trunking or hose
boom installation is completed and clean conditions prevail.
Installation procedure
First fix assembly. Remove blanks. Remove dust plug or
pressure blank (if fitted) from the first fix assembly.
Valve. Assemble.
Locate spring into brass valve plug counterbore and
locate brass valve plug into front body. Check which thread
matches the thread on the first fix assembly, fit the ‘O’ Ring
to the base of this thread if not already present. Screw the
front body into the rear body (this is a left hand thread and
will tighten anticlockwise).
Tighten assembly with hand pressure only.
Terminal unit label. Fit.
Remove the backing paper from the terminal unit label.
Locate and ax to front body with self adhesive pad.
Terminal unit. Check operation.
Insert an AGS probe and check for correct operation.
Note...
Ensure that bezel is located with moulding marks next to the
wall to provide a neat installation.
Concealed installation. Locate bezel.
Locate bezel to inside lip of fascia plate.
Fascia plate. Fit.
Locate fascia plate squarely over the installation. With
surface installations, fascia lip fits securely inside plaster
box. Engage both screws with first fix gas specific bracket and
tighten.
Part No. 1827420-I3 © 2009 BeaconMedaes. All rights reserved.
BeaconMedaes
Telford Crescent
Staveley, Derbyshire S43 3PF
Tel:
+44 (0) 1246 474 242
• Fax:
+44 (0) 1246 472 982
Website: www.beaconmedaes.com
Table of contents
