ABACUS Gemini 2000 User manual

Gemini 2000 Installation Manual v1.3 1
GEMINI 2000
INSTALLATION MANUAL
Tel: [phone]
Email: [email protected]
www.abacushealthcare.co.uk

General Information
You must follow all instructions in this manual. Failure to do so will result in you assuming
liability for the product. Failure to comply with all instructions may result in serious injury.
Intended Use
To provide assistance when bathing by means of an adjustable height bath. The bath is
powered by a 24V (Low voltage) supply with battery backup in case of power failure to allow
the bather to exit the bath. The bath allows the user to be bathed through the provision of a
moving bath, within the confines of the bath footprint. In addition there is a bathing/changing
platform upon which the bather reclines. This can also be adjusted in height within the bath
area. There is a four button handset to control the raising and lowering of the powered bath
and the platform.
With the user in the bath (Usually via a ceiling or mobile hoist) the bath can be raised to a
comfortable bathing height for the helper/carer. Exit is a reversal of the above procedure.
Responsibility of the Installer
The installer must inspect the product prior to installation to ensure the unit is free of defect or
damage. In the event of a problem, the unit must not be installed. If the packaging or product
has been damaged contact your supplier immediately.
This product is designed to be sold on a supply and install basis by a trained certified installer
and electrical work carried out by a qualified electrician.
Only accessories authorised by the manufacturer should be used with this product.
Gemini 2000 Installation Manual v1.3 2

Installer Instructions
This product is heavy. Two persons minimum to move the unit.
The bath is a two person install. Attempting a one person install is not recommended, and
may result in damage to the bath.
Always check around the bath for any obstructions before raising or lowering the bath.
Never drop or insert any objects into any openings.
WARNING! The bath is only to be installed on concrete ground level flooring. If
upper level installation is required it must not be without reference technical support.
WARNING! Check floor loading capacity against bath weight. Total weight
(maximum) is 800kg (including water and maximum user weight).
If the flooring is not capable of withstanding the 800kg load the bath must not be
installed!
WARNING! Risk of electric shock; connect only to a separate circuit protected by an RCD.
Risk of electric shock; do not permit electric appliances (such as a hair dryer, lamp,
telephone, radio or television) within 2 metres of this bath.
The unit must be connected to an RCD. Such a circuit is to be provided by a qualified
electrician and should be tested on a routine basis.
To test the RCD push the test button; the RCD should interrupt power. Push the RESET
button; power should be restored. If the RCD fails to operate in this manner there is the
possibility of an electrical shock. Do not use this unit. Isolate the unit and have the
problem corrected by a qualified service representative before any further use.
Whirlpool and spa motors where fitted must be connected to an RCD protected outlet as
must any electrical accessories.
Although compliant with IEC/EN60601-1-2 for EMC, the bath may still cause interference
with sensitive medical equipment. Should any electro-magnetic interference be
experienced whilst using this product, remove the user immediately and seek medical
advice.
Where a safety lap belt is supplied this must be used for the safety of the bather.
WARNING! If this unit is to be utilised by many different bathers, we would strongly
recommend that it is cleaned regularly with a medical disinfectant as well as following a
strict cleaning routine.
WARNING! This Bath moves. Ensure there are no objects or persons that can become
trapped or injured while the bath raises or lowers.
Gemini 2000 Installation Manual v1.3 3

Access
When deciding on the positioning of the bath there are a number of points that should be taken
into consideration:
IMPORTANT –The bath should be sited at least 100mm away from any wall to ensure there are
no finger trap areas.
It must not be sited closer without reference to the sales office or technical support.
FLOORING
Prepare the floor area and ensure it is flat, level and structurally sound. There must be NO
SERVICES OR UNDER FLOOR HEATING BURIED within the ‘foot plate’ area detailed in figure
1.0. All floor finishes should be in place prior to installation (i.e. altro/tiling).
1. Hoist/wheelchair access.
2. Service/cleaning access.
3. Positions of any existing under floor pipe work or cabling.
4. Conflict between doorways.
5. Distance from walls/other objects.
6. Under-floor obstructions (water/heating pipes, waste pipes, under-floor heating
etc)
7. Level Flooring
Tap end of
bath
Head end of
bath
Foot plates
Gemini 2000 Installation Manual v1.3 4
Figure 1.0

Side Wall Pre-install Plumbing
Figure 3.0
When fitted against a side wall, all pipework connections to the bath should be made through
the foot side panel (tap end).
(figure 3.0).
This will provide the neatest solution for side wall installation.
Waste outlet and water feed connections will exit the panel as shown in figure 3.0 when
installed correctly.
Tap end of bath –Plumbing connections
Note: for right handed bath plumbing
connectors will be mirrored to
opposite side of the bath foot.
5
Left hand bath tap end shown shown
Figure 4.0
Waste feed: Ensure that of the 3 water
Pipes which come through the wall/floor,
The waste pipe is the closest to the
‘bath plumbing connections’ (figure 4.0).
Hot & Cold water feeds:
Notice the position of the hot
and cold pipes entering the bath in
figure 4.0.
This orientation will be mirrored for a
right hand bath, with cold water pipe
being closest to the bath foot plate.
Gemini 2000 Installation Manual v1.3

Side Wall Pre-install Plumbing
Plumbing feeds -Wall fed (Dimensions shown in mm)
As plumbing connections will be from the side of the bath as shown, side wall plumbing is preferred
as it is the most straightforward and hidden solution. End wall plumbing is also possible, however
pipework will be required to follow the perimeter of the bath (see fig 4.0)
Note: when a peninsula layout in chosen, all visible pipework must also be boxed and identified as
a trip hazard.
Hot & Cold - Feeds should be fed in 22mm. Feeds should terminate with full bore isolating
valves 25mm from the wall. These should be set between 20- 40mm centres off the floor where
possible to ensure a neat connection.
Isolation valves must be located so that they are easily accessible.
Waste - 40mm Waste outlet @ 3ltr/sec. It is recommended that the waste should be set at
between 30-100mm centre from the floor.
Figure 4.0
Left hand bath wall fed
plumbing locations
shown.
Note: for right handed
bath plumbing will be
mirrored to opposite
side.
It is preferable that
plumbing enters the
room anywhere in the
green area shown.
Pipework must not
enter the room in the
location shown in
orange, as doing so
will hinder installation.
6Gemini 2000 Installation Manual v1.3

Plumbing feeds -Floor fed (Dimensions shown in mm)
Where wall entry is not possible, floor fed connections may also be made.
Hot & Cold - Feeds should be fed in 22mm. Feeds should terminate with full bore isolating
valves. Elbow isolation valves may be used to improve plumbing routing where possible.
Isolation valves must be located so that they are easily accessible.
Waste - 40mm Waste outlet @ 3ltr/sec. Waste pipe highest point should not exceed 120mm
from the floor.
Side Wall Pre-install Plumbing
7
Left hand bath floor fed
plumbing locations
shown.
Note: for right handed
bath plumbing will be
mirrored to opposite
side.
It is preferred that
plumbing feeds will
terminate anywhere
along the midpoint of the
green area outlined.
When the bath is fitted at
more that 100mm from
the wall, floor feed
centres should be 50mm
from the wall.
Pipework must not enter
the room in the location
shown in orange, as
doing so will hinder
installation.
Figure 5.0
Gemini 2000 Installation Manual v1.3

End Wall Pre-install Plumbing
Figure 7.0
The bath may also be supplied with pipework fitted to exit the foot end panel (tap end).
This configuration of plumbing is preferred when the bath is fitted with a foot end panel
against a wall (peninsula).
Waste outlet and water feeds will exit the foot end panel as shown in either figure 7.0 and 8.0,
depending on the handing of the bath.
Note: plumbing will exit the foot end panel slightly differently depending on bath handing, with
either the waste outlet at the far end (right hand, figure7.0) or in the centre (left hand, figure
8.0).
Tap end of bath –Plumbing connections
8
Left hand bath
Right hand bath
Figure 8.0
Note: Consider which handing the bath is, this will influence where the plumbing will enter.
Waste feed: Ensure that of the 3 water pipes
which come through the wall/floor, the
waste pipe is the closest to the
‘bath plumbing connections’ (figure 9.0).
Hot & Cold water feeds:
The hot and cold water feeds entering the bath
will always maintain the same order, regardless
of bath handing. Cold water to the left of the
bath, hot water to the right of the bath
(figure 9.0).
Figure 9.0
Gemini 2000 Installation Manual v1.3

End Wall Pre-install Plumbing
Plumbing feeds -Wall fed (Dimensions shown in mm)
As plumbing connections will be from the end of the bath as shown, end wall plumbing is preferred
as it is the most straightforward and hidden solution. Side wall plumbing is also possible, however
pipework will be required to follow the perimeter of the bath (see fig 9.0).
Note: when a peninsula layout in chosen, all visible pipework must also be boxed and identified as
a trip hazard.
Hot & Cold - Feeds should be fed in 22mm. Feeds should terminate with full bore isolating
valves 25mm from the wall. These should be set between 20- 40mm centres off the floor where
possible to ensure a neat connection.
Isolation valves must be located so that they are easily accessible.
Waste - 40mm Waste outlet @ 3ltr/sec. It is recommended that the waste should be set at
between 30-100mm centre from the floor.
Figure 9.0
End wall peninsula
plumbing shown.
Note: plumbing
connections terminate
in the same location for
both left and right
handed baths.
It is preferable that
plumbing enters the
room anywhere in the
green area shown.
Pipework must not
enter the room in the
location shown in
orange, as doing so
will hinder installation
(unless the bath is
positioned 150mm or
more from the wall.
9Gemini 2000 Installation Manual v1.3

Plumbing feeds -Floor fed (Dimensions shown in mm)
Where wall entry is not possible, floor fed connections may also be made.
Note: when a peninsula layout in chosen, all visible pipework must also be boxed and identified as
a trip hazard.
Hot & Cold - Feeds should be fed in 22mm. Feeds should terminate with full bore isolating
valves. Elbow isolation valves may be used to improve plumbing routing where possible.
Isolation valves must be located so that they are easily accessible.
Waste - 40mm Waste outlet @ 3ltr/sec. Waste pipe highest point should not exceed 120mm
from the floor.
End Wall Pre-install Plumbing
10
Floor fed peninsula plumbing
locations shown.
Note: plumbing connections
terminate in the same location for
both left and right handed baths.
It is preferred that plumbing feeds
will terminate in the green area as
close to the bath centreline as
possible, without entering the
orange margin.
Pipework must not enter the room
in the location shown in orange, as
doing so will hinder installation.
When the bath is fitted 200mm or
more from the wall plumbing may
terminate along the bath centreline,
providing it does not enter the
orange margin.
Plumbing pipes should terminate
the floor with centres a minimum of
50mm form the wall.
Figure 10.0
Gemini 2000 Installation Manual v1.3

Gemini 2000 Installation Manual v1.3 11
Water Pressure Requirement
As the bath requires a Thermostatic Mixing Valve, which has been manufactured to NHS
model engineering specification D08, and approved under the TMV scheme, please read the
following which outlines how a TMV may affect the use of your bath.
The working parameters of the TMV require a water pressure of 1-5 bar with a
maximum pressure loss ratio of no greater than 10:1 between hot and cold feeds.
The maximum bath water temperature according to DO8 is no higher than 43°C and
the maximum for the shower is 39°C.
It is important to note that a pressure difference between hot and cold pipes will have a great
effect on the time it takes to fill a bath, i.e;
Hot water 1.4 bar and Cold water 2.4 bar = Approx. 12.5min. to fill bath with 250 litres
Hot water 2.2 bar and Cold water 2.2 bar = Approx. 7min. to fill bath with 250 litres
If in doubt a pressure test should be carried out prior to installation of the bath, and if
required a booster pump or pressure reducing valve fitted, as required.

Electrics
Electrical Connection & Earth Bonding
A 30mA RCD is required in accordance with current IET regulations. This should be located
outside the bathroom or on the consumer unit covering that area of the building.
Earth Bonding and Cross Bonding are to be fitted and tested for continuity in accordance with
IET regulations. Trailing flex should be protected by use of protective conduit.
Image for Plumbing and Electrical Supplies
(Reference purposes only) -Side & end wall feeds
Gemini 2000 Installation Manual v1.3 12
300 - 500mm
Second spur required if
spa system is fitted
IP65 rated cable outlet wired to
5Amp fused spur at high level
75mm min
The bath should be connected via a 5 Amp IP65 rated non-switched fused spur unit, with 2
metres of 1.5mm 3 core flex. Located at the tap end of the bath, positioning and specification
to be in accordance with IET regulations. The spur box should be mounted between 300-
500mm off the floor.
Where electrical options are fitted (i.e. spa, lights, etc) a 13 Amp IP65 rated non-switched
fused spur is also required. The second spur is required to ensure the bath will continue to
operate should there be a fault in the accessory fitted.

GEMINI 2000 ON SITE ASSEMBLY AND INSTALLATION INSTRUCTIONS
The bath will come in a partly built state on a pallet, with all panels boxed separately.
Depending on the individual bath location, the bath may require some break down to
safely get it on site.
Where access allows, taking the bath into the property without any breakdown in
preferable.
Preparation
a) Carefully remove all packaging and inspect all components thoroughly. Note: Do not use
sharp knives or instruments to remove packaging around the finished surface areas of the bath.
b) Ensure all component parts are present before proceeding to remove any existing facilities. It
is important to ensure the complete kit is there. If there are ANY components missing contact
the office and quote the number on the side of the bath
c) Prepare the floor area and ensure it is flat, level and structurally sound & there are NO
SERVICES BURIED within the floor fixing area.
Ensure the bath location has suitable clearance for correct installation (When the bath is in the
room it may be difficult to move once fully assembled. Please refer to the detailed layout plan
provided on page 14.
D) All panels and contents should come labelled to help simplify assembly and installation.
Check that all contents is labelled prior to install.
Gemini 2000 Installation Manual v1.3 13
Items
Items supplied with the kit should be as
follows:
•Installation Manual (this booklet)
•User Manual
•Bath unit complete (Bath Shell, belly pan,
frame, control pack, platform support
rods, Platform)
•Bath Surround Panels –top, middle, foot
end side panels, bottom end panels and
bellows.
•Flexible water feed pipes x2
•User Handset
•Bath Shower Mixer Tap (TMV) –optional
•Backrest and cover
•Footrest (optional)
•Dispatch kit (Floor fixing kit, panel
bolts/washers, plumbing kit, cable ties
etc).

Please note: if locating the bath into the installation site is difficult, partial disassembly of
the bath is recommended.
Bath teardown
1. Bathing platform removal
1. Remove the 2 x M5 Round Head Stainless steel
bolts securing the hinge-stay to the platform rod brace.
2. Remove the 2 x M10 Stainless Steel bolts from
the top of the platform rods.
3. Whilst supporting the platform, remove the 2 x M10
Hex Head Nylon bolt. The platform will now come
free.
Note: the platform rod supports braces will now come
free and can be set aside.
Note: When reinstalling, bolts should be hand tight.
2. Belly pan removal
The belly pan is located on the underside of the base frame. When pressure is applied to the
underside of the bath, the belly pan will rise, activating the safety edge feature. Once activated,
the bath can only be raised, preventing any further lowering.
Removing the belly pan is optional, However is recommended as it will decrease the size and
weight of the base frame, and make removing the platform rods easier as access will be
improved.
1. Whilst supporting the belly pan from the underside, remove the M17 bolt holding the belly pan
at each corner (4 in total).
2. Now that the belly pan is released, carefully lower slightly and set aside.
Note: When refitting the belly pan, it is critical
that a gap of approximately 1mm is maintained
between the switch contact surface and the top
of the belly pan. This will ensure no miss
triggering of the safety edge system.
Gemini 2000 Installation Manual v1.3 14
1
3
2
1mm

Gemini 2000 Installation Manual v1.3 15
3. Bath shell removal
This requires two people. Firstly disconnect the handset. Remove the 10 x 15mm M6 screws
located on the underside of the bath.
The bath waste pipe will still be attached, remove this from the waste water trap.
Remove the control boxes from the underside of the bath using the quick release tabs
attached.
Unscrew the 2 x junction boxes from the underside of the bath.
Ensure all wiring linking the bath shell to the bath frame is disconnected.
Keeping the bath level, the bath can now be carefully guided off the platform rods, ensuring no
damage is caused to the seal housings or seals. (The seals will contain silicone grease, check
that this is clean and free from any dirt prior to reassembly).
Now that the bath shell has been removed, carefully set aside.
4. Platform rod removal
Each platform rod is bolted to the scissor frame using 1 x M8 Hex Head bolt and 1 x M8 flat
washer.. Remove the bolt and washer and the platform rod will come free.
Repeat for each platform rod (4 in total).
5. Scissor frame removal.
The next stage of the bath breakdown is to remove the scissor frame.
1. To do this the first stage is to unplug the wiring from all 4
actuators around the bath. Secondly, the Safety Edge
switches will all require moving. To do this remove the 2 x M5
round head allen bolts for each switch. (There are 4 in total
on the base frame).
2. Whilst supporting the scissor frame, disconnect one of the
side actuators from the upper scissor frame mount by
removing the clevis pin.
Repeat for the other side of the bath.
With the top mount disconnected and the scissor frame
flat, remove the actuator from the lower mount by removing
the clevis pin. The actuator can now carefully be set aside.
Repeat for the other side.
Now cable tie the scissor fame together to prevent opening.
Remove
Remove

Gemini 2000 Installation Manual v1.3 16
3. The next stage is to remove the base pivot shaft from the
base frame. To remove, unscrew the 1 x M5 round head
allen bolt from the shaft bracket. Remove the spring steel
star washer from the opposite end.
Whilst supporting the scissor frame, slide the shaft out of
the frame.
Note: Notice the nylon washers between the base frame
and scissor frame. Be sure to re-fit these when
reassembling.
Note: When reassembled, a spring steel star lock washer
will require fitting to the opposite end of the base pivot
shaft.(Supplied in the dispatch kit).
4. The tap end of the scissor frame must now be slid towards
the tap end of the bath, whilst also lifting upwards. This will
release the black nylon sliding blocks from the framework,
allowing the scissor frame to be lifted and set aside.
When done correctly, the scissor frame will lift away from the
base frame with all wiring attached.
Remove
6. Base frame removal
The bath base frame can now be removed from the foot
plate assemblies.
1. Starting at one end, whilst supporting the frame, remove
the 4 x M8 allen head bolts from the top of the base
frame.(2 bolt each side of frame).
2. Remove the 2 x M8 allen head bolts form the underside of
the base frame.(1 bolt each side of frame).
3. The base frame will now come free from the foot plate
assembly.
Carefully lower the end of the frame to the ground.
4. Repeat the process for the opposite end of the bath.
Remove
Remove

Gemini 2000 Installation Manual v1.3 17
Floor must be sound, solid and even surface.
Attention should be paid to the footplate area which will be drilled to a depth of 100mm
and must be of sound construction with no buried services in foot plate area.
Bath breakdown reversal
If the bath required breaking down (covered on pages 10-12), and after carefully carrying the
various components onto site, It is now time to begin reassembling the bath ready for
installation.
Using the foot fixing template bellow, pay attention to where the bath will be positioned.
Position the bath near the final installation site, but make sure there is enough clearance to get
to every side of the bath for installation.
To reassemble the bath to the state presented on arrival reverse the process shown during
pages 11,12 and 13.
Ensure that there is silicone grease in the seal area and the seals are free from any dirt.
Reconnect the actuators ensuring they are firmly clipped into place, and that no cables are
trapped.
HEAD END
TAP END

Gemini 2000 Installation Manual v1.3 18
Shower Mount Fitting (Bath with roaming shower only)
Before the bath is installed or panels fitted, the shower head mount must be fitted.
There are 2 x pre-drilled holes on top of the bath where the mount will locate.
Note: The mount must be fitted so that
the outer screw cover is facing
away from the bath, as shown.
Using the fixings provided with the mount,
firmly secure the mount to the bath.
Next, the mount screw cap must be fitted.
Position the screw cover over the mount
from above, and when lined up correctly
press down firmly.
When correctly installed the top of the cover
will come flush with the top of the mount, as
below

Bath plumbing connections will be made externally to the bath.
All bath plumbing is located on a bath plumbing bracket, which holds internal pipework in the
correct position to prevent any interference with framework etc. Therefore it is essential that
internal plumbing remains as shown below.
In some instances the plumbing bracket may be removed if necessary to help with bath
installation.
To gain access to the bracket mounting bolts, slide out the water feed pipes.
If this is the case, it is critical that the bracket is checked once fitted into position to ensure
there has been no movement in pipework.
It is essential that a measurement of 210mm is maintained between the stem elbows and the
22mm nylon pipe brackets as shown.
When reassembling the bracket to the frame for bath installation, use the 2 x M5 round head
allen bolts removed.
Gemini 2000 Installation Manual v1.3 19
Bath Plumbing Bracket –Side wall plumbing
Pipework mounting bracket
210mm
Tap connections
Water feeds
Waste water outlet

Gemini 2000 Installation Manual v1.3 20
Side Wall Plumbing Feed Position
Plumbing inlet connections and waste outlet connections are located external to the bath.
In order to take the plumbing from the plumbing bracket to the outside of the bath, one of the
bath foot end panels will require altering.
The panel will require holes drilling into the specified area, or a rectangle cutting out.
The panel cut-out is dependent on how the bath is handed. Plumbing will exit the right foot end
panel at the tap end of the bath if the bath is left handed, and the left foot end of the bath if the
bath is right handed.
Identifying a panel:
Once the foot end panel to cut has been selected, use the information below to correctly mark
out and cut the panel.
Left foot end panelRight foot end panel
Bottom cut-out
(floor side)
40 mm
120 mm
40 mm Correctly cut left
foot end panel