Armitage Shanks Markwik 21 User manual

A6061AA Markwik Proximity
Panel Mounted Mixer Tap
(demountable) with Armitage Bio-
guard outlet
Important:
1. Electrical connection: these mains powered sensor operated
products must be connected to a continuous permanent power supply.
2. Sensor protector: this black-out lens cover should only be removed from the
sensor after completing installation & at least 20 seconds after powering up..
A6062AA Markwik Timed Flow
Proximity Panel Mounted Mixer Tap
(demountable) with Armitage Bio-
guard outlet
Markwik 21 proximity operated
thermostatic mixers taps
INSTALLER: After installation please pass this instruction booklet to user
IMPORTANT
BEFORE CONNECTION, FLUSH WATER THROUGH PIPEWORK TO REMOVE
ALL DEBRIS ETC. WHICH COULD DAMAGE THE VALVE MECHANISM
INSTALLATION
INSTRUCTIONS

2
The ttings covered by this installation and maintenance instruction
should be installed in accordance with the water regulations
published in 1999*, therefore Armitage Shanks would strongly
recommend that these ttings are installed by a professional installer
*A guide to the Water Supply (Water Fittings) Regulations 1999 and the Water Byelaws 2000, Scotland is published by WRAS (Water
Regulations Advisory Scheme) Fern Close, Pen-y-Fan Industrial Estate, Oakdale, Newport, NP11 3EH. ISBN 0-9539708-0-9
2 DESCRIPTION
This manual covers the Markwik range of proximity operated, panel mounted, thermostatically
controlled mixers. These are designed to provide water at a preset temperature for hand washing.
The proximity controls allow operation of the ow without the user having to touch the mixer.
These products are tted with an Armitage Bioguard outlet which reduces the opportunity for bio lm
attachment and is lined with anti-microbial copper.
A hygiene ush (automatic) is an important optional feature of these products which can be enabled by
the installer or maintenance staff using the optional remote programming unit. The hygiene ush is used
to combat periods of low usage of the product. The program monitors and permits the tting to be run
automatically if it hasn’t been used for a set time period. This feature ensures regular movement of water
preventing stagnation, thus combating bio lm growth and bacteria colonisation.
See section 12.5 for more details.
Two models are covered.
The Proximity Mixer, where ow occurs only while the user’s hands are in the detection zone.
The Timed Flow Mixer, where ow starts when the user’s hand enters the detection zone and shuts off
after a preset time. The preset time can be adjusted. Traditionally the sensor is mounted to the right
of the tting, but it can be mounted to the left if necessary.
They are both intended to be installed on duct panel walls.
The panel thickness should be in the range 13 - 27 mm. Two holes, of diameter 30mm nominal and
one at 35mm nominal, will need to be cut in the panel at centres dened in Figures 1 & 2
The hot side of the mixer is insulated to ensure the body surface is maintained at a safe temperature
when the tting is in operation. These mixing valves are supplied complete with integral isolating valves,
strainers, check valves and ow regulators and are provided with a facility for thermal disinfecting of the
cold inlet side and mixed water outlet
In response to the new requirements of HTM 04-01 Addendum, the design of
Markwik mixers has been enhanced to permit easy demounting of the
mixer from the inlets..
Avoid using heat for soldering near the mixer inlets
to prevent damage to internal components.
FITTINGS COVERED
Description
A6061AA Markwik Proximity Thermostatic Panel Mounted Mixer
with Armitage Bioguard outlet
A6062AA Markwik Timed Flow, Proximity Operated Thermostatic Panel
Mounted Mixer with Armitage Bioguard outlet

3
3 DIMENSIONS
Figure 1
Proximity Mixer Dimensions
Figure 2
Timed Flow Proximity Mixer Dimensions
In healthcare applications the height of the fixation holes above
the “waste appliance” should be selected to create the
recommended “activity space” as defined in HTM64
37
panel 13-27
225
135 CRS
90
36
200 crs
200 crs
261
127
127
Ø62
Ø28
Ø
70
8
º
Ø
14
Ø
14
50 - to start
of detection zone
50 - to start of
detection zone
250 max
detection zone
130
thread
G½
hole size 30mm
85 crs
min
Ø
34
39
120
default
setting
detection zone
50
M33x1.5
thread
M33x1.5
thread
135 CRS
225
fixation details as above
rim of
waste
appliance
rim of waste
appliance
sensor may be mounted
either side of the fitting
IMPORTANT: Prior to installing mixer, ensure that any existing thermostatic mixing
valves (TMVs) that may be tted are removed

4
In accordance with the NHS model engineering specications DO8 this valve has approval for
the following applications:-
High Pressure HP- -WE
Low Pressure LP- -WE
For this type of application the following supply conditions must apply:
Operating pressure range: High Pressure Low Pressure
Maximum static pressure 10 bar 10 bar
Flow pressure hot and cold 1 to 5.0 bar 0.2 to 1.0 bar
Hot supply temperature 55 to 65 °C 55 to 65 °C
Cold supply temperature 5 to 20 °C 5 to 20 °C
4.3 Healthcare Establishments
Note:
Fittings operating outside these
conditions cannot be guaranteed
by the scheme to operate as TMV3.
*52°C absolute minimum can
be used but not recommended
Table 1 Supply conditions for healthcare establishments
Effectively this means:
Differential between HOT and COLD inlet temperatures ( ∆t ) must be 32C° min and 60C° max
Differential between HOT inlet temperature and MIXED temperature ( ∆t ) must be 11C° absolute mini-
mum but > 14C° preferred
See 9.3 Audit checks on TMV’s.
4.1 Introduction
4.2 Supply Pressure Requirements
This proximity operated thermostatically controlled mixers are manufactured to the highest standards
and have approval to TMV3 which permits it to be installed in healthcare establishments such as hospi-
tals, nursing homes and residential care homes. When installed in healthcare establishments the supply
conditions detailed in Table 1 must be observed and the commissioning and servicing requirements
detailed on section 9 & 10 must be followed.
For other installations this is not a requirement.
This mixers are designed to be installed on all types of plumbing systems.
Hot and cold water supply pressures should be reasonably balanced, however, the mixer will function
within specication on unequal pressures up to 5 :1.
The mixers has integral isolating valves which permit servicing of the strainer, ow regulator & thermo-
static cartridge. They are also used for thermal disinfection.
The minimum pressure for the correct thermal operation is 0.2 bar. However, in order to achieve an ac-
ceptable ow performance at very low pressures it may be necessary to remove the ow regulators (10).
IMPORTANT: DO NOT REMOVE check valves tted inside the inlet tails (19) - see gure 27.
4 WATER SUPPLY CONDITIONS

5
5 INSTALLATION: FIXATION
Figure 3
Proximity mixer installation panel mounting
(RH inlet cut away for clarity)
200 mm
130 mm
Ø
30 nominal
Ø
35 nominal
backnut
slip
washer
slip washer
wall panel
seal
seal
reversible
backnut
proximity sensor
slip
washer
reversible
backnut
backnut
slip
washer
Figure 4
Timed Flow mixer
installation - panel mounting
200 mm
85 mm
min
left or
right
Ø
30
nominal
Ø
35 nominal
wall
plate
shroud
seal
seal
timed flow
sensor
wall
panel
These mixers are designed to be
panel mounted on a duct wall of
maximum panel thickness 27mm.
For thicker panels the rear of the
panel will require counter bores of
62mm or greater around the xa-
tion holes.
Cut two holes of 30mm diameter,
horizontally aligned to 200mm
centres in the wall.(See figure 1
for height positioning of the tting
body over a “waste appliance”)
The sensor will require a hole of
35mm positioned as indicated in
either g1 or g2.
Loosen the chrome shrouds and
insert the tting as shown above
with the wall plates and seals to
the front of the wall.
Put on the slip washers and do up
the backnuts to a torque of 25 Nm
.
Screw the shrouds onto the
wall plates.
Check that all joints are securely tightened, test for leaks.

6
6 INSTALLATION: PLUMBING
supply pipes
(from above)
water
flow
copper
pipes
in-line
servicing
valve
in-line
solenoid
valve
solenoid
coupling
kit
90º swivel elbow
connects to
product inlets
Fig 5 Overview of plumbing installation
Fig 6 View from rear of proximity product
showing it fixed to panel with backnuts, swivel elbows & copper tails
Fig 7 Solenoid valve &
coupling nuts
Fig 8 View from rear showing solenoid valves fitted onto copper pipes
ensure
arrow on
valve body
follows
direction
of flow
cold
supply
hot
supply
15mm copper tails 45mm long
minimum (not supplied)
15mm
x G1/2
swivel
elbows
solenoid coil is on a
ratchet - permitting rotation
of up to 90 deg in either direction
about the horizontal axis shown
solenoid valves can also be rotated
about the vertical axis into a position
that permits easy access to connectors
FLOW
First refer to section 4. Supply conditions.
A typical example of an installation of a proximity mixer is shown
here as a guide. In this example, the water supply pipes are pro-
vided from above (this usually permits better drain down of pipes).
Supplies can be from any direction.
This diagram shows the preferred method of assembling the plumb-
ing components. Two of these assemblies are required per product.
OBSERVE ARROWS ON VALVE BODIES.
IMPORTANT: Avoid using heat for soldering near the product
inlets to prevent damage to internal components
Mount mixer to the panel and secure the backnuts.
Fit swivel elbows (15mm x G1/2, not supplied) to the inlet tails
as shown and ensure the seals supplied with them are tted
between the inlet tails & the elbows. Make good the joints.
Prepare two short lengths of 15mm copper pipe (minimum
of 45mm long) and assemble to the compression side of
elbows. Make good the joints
IMPORTANT: When viewed from the REAR, the HOT
supply should be connected to the RIGHT hand side.
The coupling nuts (supplied) can now be screwed onto both sides of
both in-line solenoid valves. Ensure the seals provided are tted be-
tween the solenoids and the coupling nuts. Make good the joints, taking
care not to use excessive force.
The solenoid valve assemblies can now
be loosely tted onto the copper pipes.
IMPORTANT: Ensure directional ar-
row onvalve body follows the direc-
tion of the water ow.
Position solenoid valves as required and
then make good the joints
DO NOT apply heat near this product. Heat generated by soldering
could damage plastic parts and seals.
Check that all joints are securely tightened, test for leaks.

length of 15mm copper tails
will define service valve position,
ideally adjacent to an access panel
IMPORTANT: Ensure
the arrows on the
valves bodies match
the direction of
the water flow.
Fig 9 view from rear showing
service valves fitted to pipework
Fig 10 View from front showing service valves
fitted to pipework of proximity product
supply pipes
(from above)
isolator screw
filter access
where access panel is
available above product,
service valves can be
orientated as shown
Figure 10a Use of purging kit
shroud
purge kit body
purge kit elbow
isolating valve
supply pipes
(from above)
in-line servicing valve should be orientated
to permit easy access for maintenance
FLOW
blocks waterway
to thermostatic
cartridge thus protecting
it from debris
Connect water supply pipes to the ser-
vice valves and make good all the joints.
Check that all connections are water tight.
IMPORTANT NOTE:
Before operating the product, it is strongly rec-
ommended to ush the pipe work to remove
any residues or debris remaining after instal-
lation. A purge kit is available for this purpose.
See below
A purging kit - A4556AA (not included) designed to ush out debris from the pipe-work after installation
is available from Customer Care (see section 18)
Sensor and solenoids must be connected and be operational before purging (see sections 7 & 8)
The following procedure should be used to ush the pipe work:
1.Unscrew and slide back shrouds, close both isolating valves.
2.Remove both maintenance carriers as described in section 13.1.
3.Screw the purge kit bodies into both sides of product. Screw elbows onto the ends of the purge kit
bodies.
4.Open isolating valves then place a hand in the sensor detection zone (to operate the valve).
Allow water to discharge into a receiving vessel.
Note: suitable tubing can be push tted onto elbows if required.
5.Once system has been purged, reverse this procedure.
7
6.1 Flushing with hydro-purging kit

7 INSTALLATION: ELECTRICAL
MAINS ELECTRICAL POWER SUPPLY
Mains powered Sensor Operated Products must be connected to a
(fused / switched) continuous permanent power supply.
Connection to an interrupted power supply intended to stop
electrical consumption in an unused facility, may adversely affect
the Sensor product and is therefore not recommended.
Each time the power supply is reinstated the product enters
reprogramming mode.
During reprogramming mode, any interaction (passive or active)
with the product may alter the sensor settings in respect to range
and / or run duration.
No signicant savings will be achieved by connection to an
interrupted supply. These products are intrinsically economical in
terms of both water and electrical energy and will shut down in the
event of a sensor being obstructed.
8
Abbreviations & terminology used
PSU: Power Supply Unit, either mains, battery or link versions.
PCB: Printed Circuit Board inside the PSU.
RCD: Residual Current Device
SELV: Safety Extra Low Voltage

9
Fig13 View from rear showing solenoid valves link cable fitted
note: additional spade
connectors on one
end of solenoid link
cable
connect other end of
link cable to terminals
of other solenoid
connect one end
of link cable to
terminals of one
solenoid
+
-
solenoid
valve
terminals
observe + -
Fig12 View from rear showing one
of the solenoid valves
Fig14 View from rear showing sensor cable fitted to one solenoid valve
connect sensor
cable onto
additional spades
Fig11 Showing overview of electrical installation
< mains power supply in
cable from sensor
(grey)
sensor
solenoid linking cable
(red & black)
cable from
sensor
(red & black)
solenoids
PSU
case
Connection of this product to mains
power supply should be undertaken by a
competent person and should conform to
IEE Wiring Regulations.
A typical example of an installation of a prox-
imity mixer is shown here as a guide.
Orientation & position of solenoids, and PSU
(Power Supply Unit) case can differ from in-
stallation to installation.
An overview of the electrical wiring is shown
in Fig 11
With the product securely mounted to the panel &
plumbed-in, electrical work can commence.
First connect the two solenoid valves together using the separate link cable provided. The link cable is
black & red with connectors tted at both ends. Cable length is 500mm.
Connect the cable to the solenoid valve terminals as shown. Observe the + and – symbols marked on
the solenoid valves, connect the red cables to + & black to -.
Note: one end of this link cable is tted with additional spade connectors
as shown. These connectors are for attaching the red & black sensor cable.
Locate the end of the red & black cable which is attached
to the rear of the sensor. Cable length is 750mm.
Connect this cable to the spade connectors shown on
the link cable. Observe + and – Ensure red is connected
to red & black to black.

10
use either connector
for grey sensor cable
grommet for
sensor cable
lid screws
lid
lid seal
PCB
terminal block
for mains
connection
transformer with
thermal fuse
complies with
EN60950
PSU case
output voltage 6V
- complies with
IEE wiring regulations
safety extra low voltage
(SELV)
grommet for
power cable
(bottom entry)
mains supply (210 - 250 volt)
should be via an RCD
(max trip 30mA)
and fused spur
(fused at 3 amp)
power cable not supplied
Fig15 Power Supply Unit (PSU)
Next, open the PSU case by un-
screwing 4x posi-drive screws; the
lid & seal should separate from the
PSU case. Slide out the PCB (Print-
ed Circuit Board) from the case.
With the mains power switched off,
prepare the mains power cable (not
supplied). This should be exible 3A
rated 2 core cable. Carefully remove
about 100mm of outer cable sheath-
ing, strip the wire ends back by
about 5mm.
Feed the cable through the grommet
at the base of the case (cut small slot
in grommet rst).
Connect the appropriate mains wires
to the L (Live) & N (Neutral) marked
on the terminal block on the PCB.
Slide the PCB back into the case
(note guide slots), allowing the
mains wires to rest in-front of the
transformer.
DO NOT leave wires on top of the
transformer as this may prevent the
lid from closing completely
Locate the end of the second cable (grey with black line) which is attached to the rear of the sensor
(cable end has connector tted, length is 750mm). The cable can be slid into the upper grommet (which
is pre-slit) & fed through the lid.
Plug this cable into either one of the two connectors on the PCB. The lid can now be closed, ensure the
grommet is pressed into the lid. Check that no cables are trapped under the lid, make sure the lid seal
is in place, and then ret the 4 retaining screws.
A pair of self-adhesive Velcro-type pads are provided. Attach one to the side of the PSU case & the other
to a suitable location on the rear of the mounting panel.
Note: ensure the selected location does not stretch/stress the cables. Consideration should also be
given to keeping the PSU case within easy reach/access for maintenance staff. Fasten the PSU case
to the mounting panel.
This completes the behind-panel installation work.
IMPORTANT: Leave the sensor protective sticker in place for at least 20 seconds after
powering-on the product.
See section 8 regarding sensor adjustment
IMPORTANT: Ensure terminal block screws are rmly tightened & clamp the wires securely.
Note earth connection is not required to PCB

11
8 OPERATION & SENSOR ADJUSTMENT
Operation
Proximity mixer
Timed flow mixer
detection
zone
detection
zone
Figure 16
Step 1a Detection Range Adjustment
sensor
required range
(max 250 mm)
sensor
30 - 50 mm
Step 1b
Figure 17
Figure 18
NOTE: Ensure there
is no obstruction in
the detection range
during 'Power -Up'
as this may cause
the range to be
changed.
Before programming
remove sticky label
over sensor face.
Both mixers are operated when the user places a hand in the detection zone.
With the proximity version, ow starts when a hand is placed in the detection zone and
will continue until it is removed.
The other version gives a timed ow which is started by placing a hand in the detection zone. Flow will
then continue for a preset time of 60 seconds and then stop automatically. The preset time can be ad-
justed by following the procedure outlined in the section on programming the sensor below.
After the initial 5 secs, the LED will stop ashing and will stay fully on for about 5 more secs.
During this time, move hand to required range (up to a maximum of 250mm),
Leave hand at this position for 5 seconds, the LED will start to ash again.
If it is necessary to change the run time, go to Step 2 below, otherwise move hand away from detection
range. The sensor now works normally and is no longer in programming mode.
If an error is made in programming the detection range, it is necessary to start again from Step 1a.
PROGRAMMING THE SENSOR
Follow this procedure to change the Detection Range and the Run Time for timed ow product
PLEASE NOTE: Only the detection range can be changed on proximity product. The run time is deter-
mined by the presence of a hand in the detection zone, or the anti-vandal max run time.
The sensor can only be programmed just after power-up.
Disconnect power supply from the mains, wait 30 seconds.
Reconnect sensor to power supply - note LED in sensor ashes slowly for about 5 seconds.
During this time, place hand 30 to 50 mm from sensor while LED ashes slowly.

12
PROGRAMMING THE SENSOR CONTINUED
9 COMMISSIONING AND AUDITS
sensor
30 - 50 mm
Step 2 Run Time Adjustment
Figure 19
No of LED Flashes
1
2
3
4
5
6
7
8
9
Run Time (Seconds)
1
2
3.25
7.5
15
30
60
120
240
While the sensor LED is ashing, hold hand near
to sensor (30 - 50mm),
The sensor LED turns off and starts to ash very
slowly (once every 2 seconds),
Each ash will give a different time period, after
7 ashes take the hand away from the detection
range. The run time is now set for 60 seconds.
For other run times, see the table below. The sensor now works normally, and is no longer in program-
ming mode.If an error has been made in programming the run time, it is necessary to start from Step 1.
The following procedure should be conducted after installation to ensure the product is
functioning correctly.
9.1 The Purpose of Commissioning:
• To conrm the correct designation of product versus application.
• To conrm the correct supply water conditions for the product / installation.
• To adjust the mixed temperature if necessary to suit the water supply conditions of the installation.
• To check the product is performing properly.
• To start an audit log and record appropriate data.
This product is factory set at 40 ± 1°C * with supplies of circa; 3 bar balanced pressure and
temperatures of 15°C cold & 65°C hot (i.e. an inlet ∆t of 50°C & a hot / mix ∆t of 24°C )
For supply requirements, see 4.0 Water supply conditions.
9.2 Commissioning Process
• Establish that the supply conditions are within the requirements of HTM 04 and the supply
conditions outlined above. If not investigate.
• When conditions are acceptable record them, together with hot and cold temperatures. Establish ∆t.
Check the outlet mix temperature is within 41°C ± 2°C *, if not (probably due to ∆t > 5 difference to
factory setting) adjust appropriately. (See 12.1)
• If mixed water temperature is correct undertake an ‘in eld’ cold water isolation (CWI) test (See 9.5).
Pass – restore supply and record mixed temperature,
Fail – See 9.5 in eld ‘Cold Water Isolation’ test.
9.3 Audit Checks on TMV’s
The purpose of a performance audit of a product is:
• To check the product continues to perform properly.
• To ag the need for the product to be adjusted due to supply condition changes or mechanism
ageing.
• To ultimately identify the need for product maintenance.
Note - Additionally these audits facilitate regular verication of the supply conditions in accordance
with HTM 04 requirements. (See decision tree FC3)
* See section 9.6: setting temperature

13
9.2 cont. Commissioning process (decision tree FC1)
NOTES:
MWT - Maximum Working
Temperature
Commissioning; Supply Conditions
should be recorded
NOTE:
Factory settings are:
Inlet
t = H - C = 65-15 = 50°C
Hot/Mix
t = 65-41 = 24°C
∆
∆
pass
accept
record mixed temperature
re-set mixed to
41
C +0/-2°C
º
follow setting
or maintenance
instructions
MWT 41
C (+0 / -
º
2ºC) *
check the supply conditions
pressure 0.2 - 5.0 bar & temperature <20
ºC & >55º
record supply conditions
and
∆t for the hot & cold
investigate
YES
YES
YES
NO
NO
NO
fail test
undertake in-field cold water
isolation test - see see 9.5
Achieved 41 +0 / -2°C *
* See section 9.6: setting temperature

14
∆t>5
ºC
is supply temperature
same as previous audit?
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
record stable state supply
temperature (5 - 20
C)
º
cold <20
in 2 minutes
ºC
supply pressures
are appropriate
hot>55
in 1 minute
ºC
record stable state supply
temperature (55 - 65
ºC)
is supply temperature
same as previous audit?
insignificant change
difference <5
C
∆t
º
>65
ºC
temporary change
of known cause
long term or permanent
change - consider
recommisioning of thermo
fitting(s)
implications to terminal fittings
investigate system issue
no action.
retest when
conditions normalise
no action
go to D-08 field test audit 9.4
or commissioning 9.2
follow
commissioning
instructions see
9.4 Audit procedure (see decision tree FC2)
• Verify the water supplies conditions are similar to when the product was commissioned i.e. inlet ∆t
as previous + / - 5C°
Note: If inlet ∆t change is > 5C consider the cause of the change, If it is seen as a long term or
permanent change, re-commission the product. If however, it is only a temporary change, retest when
normal conditions resume.
• If inlet ∆t differs from the commissioning ∆t by < 5C° carry out eld ‘cold water isolation’ (CWI) test
as D-08: 2009. See 9.5 in eld Cold Water Isolation test failure.
• Pass - restore the cold supply and move on to check the mix temperature.
Note: If the product fails CWI test, refer to 9.5 and then re-commission the valve.
• Mixed Temperature is as commissioned ±2C°, Accept and record the temperature.
Note: If mixed Deviation > ±2C° (1st instance) reset mix as instructions and redo the test from start.
See 12.1 Adjustment of the mix temperature.
• 2nd & subsequent instances follow maintenance instructions.
Audit of Supplies To Fittings (FC3)

15
Fitting Field Test Audit (FC2)
go to commissioning FC1 (9.2)
2nd instance
follow maintenance
instructions (section 12)
1st instance
reset, follow
setting instructions
accept
& record
mixed temp.
same as at
commissioning
2.0
C
±
º
deviation from
previous >+2.0
ºC
check mixed
temperature
restore cold
pass
fail
see 12
undertake the cold
water isolation test
see 9.5
water supplies same as
previous audit or
∆t change >5ºC
9.5 In-eld ‘Cold Water Isolation’
(CWI) test.
Note: To gain access to the cold water isolat-
ing valve, unscrew the right hand shroud (42)
& slide forward to expose the isolating screw
on top of the cold inlet leg (see g 24, section
13). Using a at-blade screw driver, the screw
can be rotated 90° anti-clockwise to isolate
the cold water supply.
Prior to commencing the CWI test, ensure:
1. The water supply conditions are met either:
A. For commissioning a new product
(see table 1, section 4).
B. Or the inlet ∆t is within ±5°C to when the
product was commissioned (see 9.4).
NOTE It is important that the hot
temperature is greater than 55°C
2. Mixed water outlet temperature is
correct (see table 2, section 10).
To perform a CWI test, operate the product
using the sensor. Then conduct the following
procedure:
1. Record the steady state temperature of
both hot and cold water supplies.
Note the ∆t.
2. Record the temperature of the mixed
water at the outlet.
3. Isolate the cold water supply (by rotating
the isolating screw 90°) & monitor the
ow of water from the outlet.
If the ow ceases, CWI test passed:
1. Restore the cold water supply by rotating
the isolator screw 90° clockwise.
2. Slide the shroud back & screw onto the
wall plate.
3. Re-check the temperature of the stabilised
mixed water at the outlet to ensure it is still
correct. Accept & record mixed temperature
.
If there is an ongoing ow of water from the mixed water outlet, then 5 seconds after CWI collect the
discharging water into a measuring vessel for 60 seconds. To pass the CWI test the volume of collected
water should be less than 120ml.
If the product fails CWI test, see FC2 (section 9). Follow product maintenance (see section 12) and
servicing (see section 10) instructions.
9.6 Setting temperature for sensor operated mixers
These products do not allow the user to select the desired blend temperature. We therefore recommend
setting a blend temperature of 39 to 40°C rather than the normally applicable 41°C maximum associated
with “user adjustable” products. This ensures comfort to more sensitive users.

16
11 ARMITAGE BIOGUARD OUTLET
10 SERVICING - TVM3 SCHEME
10.1 FREQUENCY OF REGULAR SERVICING
The need for servicing is normally identied as a result of the regular performance auditing.
Table 2 A guide to maximum temperature sets
Permitted maximum stabilised
temperature recorded during site
testing – excluding transient spikes
Maximum mixed water
temperature during
normal operation
Application
41ºC *
43ºC
Washbasin
The purpose of servicing regularly is to monitor any changes in performance due to changes in either
the system or the product. This may highlight the need to adjust either the supply system or the product.
These products should be audited 6 to 8 weeks and again 12 to 15 weeks after commissioning. The
results are to be compared against original commissioning settings. If there are no signicant changes
at the mixed temperature outlet then a 6 monthly servicing cycle may be adopted. Otherwise, servicing
checks should be carried out more frequently (e.g. every 4 months).
Follow the recommended auditing and maintenance procedures detailed in sections 9 & 12. During
servicing, note the following:
1. Repeat the procedure of recording and checking supply temperatures. (The same type of measuring
equipment should be used)
2. If the temperature has changed signicantly from the previously recorded valves, the following should
be checked:
a. All in-line or integral valve lters are clear of obstruction.
b. All in-line or integral check valves are clean and working properly to prevent backow.
c. Any isolating valves are fully open.
d. The thermostat is free of debris
3. When satised with the mixed outlet temperatures re-record the temperatures.
11.1 Outlet cleaning
Traditional “ow straightener” type outlets have recently been identied by extensive research as an
area most likely to harbour bacteria. This product uses an Armitage Bioguard outlet which replaces this
traditional ow straightener with a fully open copper-lined waterway. This greatly reduces the risk of
bacteria build-up whilst the copper lining has natural anti-microbial properties.
Outlet is suitable for autoclaving (remove o-ring if exceeding 80°C).
In the interests of infection control and health hygiene, the Armitage Bioguard Outlet is a supplement to,
not a substitute for, standard infection control practices. Continue to follow all current protocols, includ-
ing those practices related to cleaning and disinfection of surfaces. Refer to HTM04-01 for more details.
Patent pending for Armitage Bioguard antibacterial outlet, application No: 10 2012 107 243.4
On a regular basis the outlet should be inspected and cleaned.
To unscrew and remove the outlet, use an adjustable spanner on the ats (20mm). To ret, hand tighten
and then use the spanner until the outlet has bottomed in the bore. Take care not to over tighten.
In areas where lime scale build-up is prevalent this should be avoided by regular cleaning. If it should
build up, it will have to be removed. An inhibited proprietary scale solvent can be used such a kettle des-
caling solvent but it is important to follow the manufacturer’s guidelines. After descaling it is important to
rinse the parts thoroughly in clean water. Clean carefully and do not use abrasive materials or scrapers
Note: Lime scale deposits should be removed prior to using any disinfection treatments.
OUTLET FILTER: The Armitage Bioguard outlet can be removed (as described below) & re-
placed with a universal lter adaptor, see section 18. The adaptor will accept most lter types
which are externally threaded M24x1.
* See section 9.6: setting temperature

17
In response to the new requirements of HTM 04-01 Addendum, the designs of these mixers have been
enhanced to permit easy demounting of the mixer from the inlets.
This updated design permits quick & easy removal of the mixer for cleaning, disinfection & maintenance
purposes.
Prior to commencing this procedure, you should have available either a replacement mixer (without
inlets) or a pair of protective cover caps. See section 18.
Disinfection by full immersion in an appropriate bactericidal solution is recommended for this assembly.
Prior to immersion, the tting should be clean and dismantled to a level that prevents air locking. In some
cases it may be considered appropriate to dismantle the tting prior to demounting.
The level of dismantling should be established as a result of practice and will be largely dependant upon
the water quality and service life. As a minimum we recommend removal of the lever handle, thermo-
static cartridge & the maintenance carriers in each side of the body. Cleaning the lter screens on the
latter is of great importance, see section 13. All components can be immersed together unassembled.
Disinfected mixers should be promptly replaced or stored using an appropriate method until required.
For disinfection solution see section 11.8
Method for demounting mixers:
1. Isolate the hot and cold water supplies
using the integral ball valves.
See section 13.
Operate mixer lever to conrm
water supplies are closed off.
2. Undo the 2 grub screws
securing the mixer using
a 3mm hexagon key.
(Take care not to lose
the screws).
3. Remove the mixer from the inlets, by
gently pulling away as shown. Expect
some trapped water to escape.
4. During cleaning protocols:
Fit a replacement mixer (without inlets) to ensure
continuity of use. Alternatively t cover caps to protect &
seal the inlets.
5. To ret the mixer; reverse this procedure. Tighten screws securely.
6. Follow the commissioning procedure to ensure the product is functioning correctly. See section 9.
11.7 Demounting mixer
Take care to avoid damaging the inlet seals. Damage to these seals
would compromise the insulate feature & affect the mixer’s thermostatic
performance. See section 15 for spare “demountable seal kit”.
3

18
If a replacement mixer is not available, a pair of protective cover caps should be tted to the inlets. For
product code see section 18.
For both practical and functional reasons along with environmental contamination reasons, the inlets
should not be left open.
Push the caps onto the inlets until they stop against the shoulder.
Take care not to damage the o-ring seals.
Secure the caps with grub screws as shown using a 3mm
hexagonal key. Leave the hot & cold supplies isolated.
Cover caps should be disinfected / sterilised when necessary.
As discussed in section 11.7, for disinfection, we recommend parts be immersed in an appropriate
bactericidal solution.
The frequency of such disinfection actions will be derived from regular sampling carried out under the
regime of the Responsible Person (Water). We would not expect to need greater than 6 monthly fre-
quencies, hopefully considerably less.
The need for excessive use of this procedure would be indicative of the need for some root cause analy-
sis as there could be some system or behavioural problems that need addressing.
11.8 Disinfection solution
IMPORTANT:
Do not leave the mixer inlets open without a body or cover caps tted.
3
Protective cover caps
IMPORTANT ADMINISTRATION NOTE:
Where an audit log document (report or electronic record) is being kept for a mixer,
consideration should be given to the mixer’s traceability during the demounting &
disinfecting process.

19
12 MAINTENANCE
12.1 Adjustment of the mix temperature:
12.2 Removal and inspection of cartridge
When installed as a TMV3 application it is a requirement that the commissioning and maintenance
procedures, detailed under 9 & 10, be carried out.
4mm
retaining
screw
upper
stop ring
lock
shield
lower
stop ring
cartridge
stop face
Figure 20 Adjusting the pre-set
temperature
Figure 21 Exploded view showing
sequential cartridge
cover button
screw
sequential
cartridge
lock shield
36mm A/F
(deep socket
required)
• Note: Cartridge is factory pre-set at 40 ± 1°C *.
• Prise out the cover button, then use a 4mm Allen key to
remove the screw.
• Lift off the lock shield.
• Remove both rotational stops from the spindle.
• Turn the spindle to achieve a 40 ± 1°C * mixed.
(Clockwise to reduce and anti-clockwise to increase).
• Ret both stop rings against the anti-clockwise rotation
stop face.
Note: 1. This is the normal maximum temperature range for
the product and as such there is a wide zone of spindle move-
ment that gives this mix temperature. For best performance
you should ret the stop at the rst point of anticlockwise rota-
tion that achieves the desired setting.
2. If you are unable to achieve 40 ± 1°C * and you have the
correct ?t’s it may be due to ne debris. See 12.2 Removal
and inspection of cartridge.
• Upon successful completion of the temperature adjustment,
conduct the Cold Water Isolation (CWI) test (See 9.5) to
ensure product is working properly.
• Ret the lock shield and record the mix temperature.
After checking that supply conditions are within the specied
parameters (see table 1), if the tting malfunctions or should the
test results fail to fall within the specied limits consider replacing
the cartridge with a new one. See 12.3 Important notes on debris.
Isolate the tting by turning the isolating valves 90 anti-clockwise
(viewed facing the iso-valve).
Remove the lock shield as described in 12.1. Unscrew the cartridge
from the body with a 36mm a/f deep socket. Inspect cartridge for
damage.
Replace cartridge if necessary and reassemble cartridge into body
.
The replacement cartridge should be tightened to a torque of 15Nm.
(To re-secure the cartridge we recommend the use of Permabond
A011 or equivalent applied to the thread of the cartridge)
Replace the lock shield and reinstate the supplies.
• Redo the Cold Water Isolation (CWI) test (See 9.5).
• Once satised with the CWI test, re-check and if necessary,
adjust the maximum mix temperature, see (See 12.1).
• Record the mix temperature.
* See section 9.6: setting temperature

20
12.3 Important notes on debris
Although this product is protected by built-in lters, debris can still nd its way to the thermostat housing
area. This can happen during servicing for example. Remove cartridge (see section 12.2) and carry out
an inspection.
12.4 Thermostatic Cartridge Ageing
12.5 Hygiene Flush (automatic)
Following many years of normal service you may notice the following:
1. The need to carry out more frequent adjustment of mixed temperature.
2. The thermostatic element may not pass the CWI test.
These issues could be due to the ageing of the thermostat which loses some expansion capability over time.
These are the principle objectives of testing, as they serve to indicate to maintenance staff the declining
performance capability of the thermostatic cartridge.
For this reason the audit testing ow chart highlights that 2nd Instance CWI test failure or 2nd instance
mixed deviation even with stable ‘as commissioned’ supply conditions and correct inlet supply ∆t’s, is
potentially the rst indication of the need to replace the cartridge.
This hygiene ush is an important optional function of these products which can be enabled by the in-
staller or maintenance staff using the optional remote programming unit (for part number see sect.18).
The hygiene ush is used to combat periods of low usage of the product. The function monitors and
permits the tting to be run automatically if it hasn’t been used for a set time period. This function en-
sures regular movement of water preventing stagnation, thus combating bio lm growth and bacteria
colonisation.
a) Handunit ON
b) Navigate to Menu 4 PARAMETER
c) SENSOR 2013 (Enter)
d) MENU 4.1 HAND-WASH (Enter)
e) AUTO-RINSE FREQUENCY: OFF
ARROW UP (To required Delay time) (Enter). Recommended: 6 or 12 hours.
f) AUTO-RINSE DURATION: (15 sec default)
ARROW UP or DOWN (To required Run Time). Recommended: 60sec (max).
g) Point towards Sensor (approximate distance 100mm)
h) Press ENTER
i) TRANSMISSION OK - if successfully programmed; ERROR COM – if programming failed
j) Press ESCAPE (X) to get BACKUP FUNCTION
k) With BACKUP FUNCTION, previous settings are ‘Remembered’ –
- just point at next Tap / Sensor and press ENTER to repeat.
l) Handunit turns itself off after 2 minutes of non-use.
The programming unit should be held pointing towards the sen-
sor at distance of approx. 100mm, see below.
Once enabled, this function will automatically turn the water on
for a duration of 1 to 60 seconds if the product has not been used
for a period of 6, 12, 24, 48, or 72 hours.
For full details on how to enable this function, refer to the
programming instructions supplied with programming unit.
A brief summary of how to navigate the programming unit is as follows: