PRODUCT MANUAL Safetherm

PRODUCT MANUAL Safetherm
Safetherm
PRODUCT MANUAL
IMPORTANT
Installer: This manual is the property of the customer
and must be retained with the product for maintenance
and operational purposes.
1
CONTENTS
Introduction.............................................................................................. 3
Safety : Warnings..................................................................................... 3
Pack Contents Checklist......................................................................... 5
Specifications........................................................................................... 7
Pressures.............................................................................................. 7
Temperatures........................................................................................ 7
Thermostatic Shut-down....................................................................... 8
Connections.......................................................................................... 8
Important Points.................................................................................... 8
Dimensions.......................................................................................... 10
Installation.............................................................................................. 11
Panel Mounting................................................................................... 12
Basin Mounting.................................................................................... 14
Operation................................................................................................ 16
Commissioning...................................................................................... 17
Maximum Temperature Setting........................................................... 17
Fault Diagnosis....................................................................................... 19
Maintenance............................................................................................ 21
Planned Maintenance......................................................................... 21
Thermostatic Cartridge Renewal......................................................... 22
Filter Renewal..................................................................................... 23
Checkvalve Cartridge Renewal........................................................... 24
Spare Parts............................................................................................. 25
Notes....................................................................................................... 27
Customer Care........................................................................................ 28
2
INTRODUCTION
Congratulations on purchasing a quality Rada product. To enjoy the full potential of
your new product, please take time to read this guide thoroughly; having done so,
keep it handy for future reference.
The Rada Safetherm is an exposed thermostatic control for connection to entry
pipework from various directions. The thermostatic control incorporates a wax capsule
temperature sensing unit. This provides an almost immediate response to changes
in pressures or temperature of the incoming water supplies to maintain the selected
temperature. An adjustable maximum temperature stop is provided which limits the
temperature to the desired level. The Safetherm also includes checkvalves, filters
and inlet flow regulators limiting the outlet flow to 8 L/Min.
The Rada Safetherm has been certified for use in UK Healthcare premises as a
Type 3 valve under the BUILDCERT TMV3 scheme. For Healthcare* installations
refer to the TMV3 Requirements Manual. This product also complies with the Water
Supply (water fittings) Regulations 1999.
*Healthcare applications are hospitals, aged person facilities, residential care homes,
etc. and any other application where the user is similarly at risk.
The approved designations for Type 3 Valves are as follows:
Model
Designation Code
Rada Safetherm
HP-WE, LP-WE
SAFETY : WARNINGS
Warning!
Products manufactured by us are safe provided they are installed, used and maintained
in good working order in accordance with our instructions and recommendations.
Caution!
1. Read all of these instructions.
2. Retain this guide for later use.
For Type 3 installations, valves are only to be used for applications covered by
their approved designations, refer to the TMV3 Requirements Manual.
3. Pass on this guide in the event of change of ownership of the installation
site.
4. Follow all warnings, cautions and instructions contained in this guide.
5. The plumbing installation must comply with the requirements of UK Water
Regulations/Bye-laws (Scotland), Building Regulations or any particular
regulations and practices, specified by the local water supplier. The installation
should be carried out by a plumber or contractor who is registered or is
a member of an association such as:
i)
Institute of Plumbing (IOP), throughout the UK.
3
ii)
National Association of Plumbing, Heating and Mechanical Services
Contractors (NAPH & MSC), England and Wales.
iii)
Scottish and Northern Ireland Plumbing Employers’ Federation (SNIPEF),
Scotland and Northern Ireland.
6. Anyone who may have difficulty understanding or operating the controls of any
appliance should be attended whilst operating. Particular consideration should
be given to the young, the elderly, the infirm, or anyone inexperienced in the
correct operation of the controls.
The use of the word “failsafe” to describe the function of a thermostatic mixing valve
is both incorrect and misleading. In keeping with every other mechanism it cannot
be considered as being functionally infallible.
Provided that the thermostatic mixing valve is installed, commissioned, operated
within the specification limits and maintained according to this Manual, the risk of
malfunction, if not eliminated, is considerably reduced.
Malfunction of thermostatic mixing valves is almost always progressive in nature
and will be detected by the use of proper temperature checking and maintenance
routines.
Certain types of system can result in the thermostatic mixing valve having excessive
‘dead-legs’ of pipework. Others allow an auxiliary cold water supply to be added
to the mixed water from the mixing valve. Such systems can disguise the onset of
thermostatic mixing valve malfunction.
Ultimately, the user or attendant must exercise due diligence to make sure that the
delivery of warm water is at a stable, safe temperature. This is particularly important
in such healthcare procedures as supervised bathing of patients unable to respond
immediately to unsafe temperatures.
Safetherm Options
The following table indicates temperature control options available for the
Safetherm.
Installation
Temperature Adjustment
Panel
Adjustable Temperature Control
Basin
Adjustable Temperature Control
4
Description
Safetherm
PACK CONTENTS CHECKLIST
Tick the appropriate boxes to familiarize yourself with the part names and to
confirm that the parts are included.
Safetherm Panel

1 x 2.5 mm A/F Hexagon Wrench

1 x 3 mm A/F Hexagon Wrench
 2 x Grub Screws
 2 x Compression Nuts
 2 x Back Nuts
1 x ‘O’ Key
 2 x Olives
 2 x 'O' Seals
 2 x Inlet Connector
 1 x Flat Face
Connector Pack
 2 x Concealing
Shroud
 1 x Safetherm Tap Control
(Panel Mount)
 1 x TMV3 Requirements
Manual
5
Safetherm Basin
 2 x Compression Nuts
 2 x Back Plate
 2 x Large Rubber Washer
 2 x Back Nuts
 2 x Deck Mount Plate
 2 x Olives
 2 x Deck Mount Ring
 2 x 'O' Seals
 2 x 'O' Seals
 2 x Grub Screws

1 x 2.5 mm A/F Hexagon Wrench

1 x 3 mm A/F Hexagon Wrench
 1 x ‘O’ Key
 1 x Safetherm Tap Control
(Basin Mount)
 1 x Flat Face
Connector Pack
 2 x Extension
Tube
 2 x Inlet Connector
 2 x Extension
 2 x Concealing
Sleeve
Shroud
 1 x TMV3 Requirements
Manual
6
SPECIFICATIONS
For Type 3 Valves, the supply conditions specified in the TMV3 Requirements Manual
take precedence over the operating parameters which follow.
Pressures
•
•
•
Max Static Pressure: 10 Bar.
•
For optimum performance supplies should be nominally equal.
Max Maintained Pressure: 5 Bar.
Min Maintained Pressure (Gravity System): 0.1 Bar.
(0.1 bar = 1 Metre head from cold tank base to tap outlet).
8
Flow Rate (l/min)
7
6
5
4
3
2
1
0
Temperatures
0 0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Supply Pressure (bar)
•
•
Factory Pre-set (Blend): 41°C.
•
Recommended Hot Supply: 60°C to 65°C Note! The thermostatic control
can operate at higher temperatures for short periods without damage,
however this could detrimentally affect thermostatic performance. For safety
and performance reasons it is recommended that the maximum hot water
temperature is limited to 65°C.
•
•
Cold Water Range: up to 25°C.
•
Please refer to section: ‘Type 3 Valves - Application for Type 3 Valves.
Optimum Thermostatic Control Range: 35°C to 43°C (achieved with supplies
of 15°C cold, 65°C hot and nominally equal pressures).
Minimum Recommended Differential between Hot Supply and Outlet
Temperature: 12°C.
7
Thermostatic Shut-down
•
For safety and comfort the thermostat will shut off the thermostatic control
within 2 Seconds if either supply fails (achieved only if the blend temperature
has a minimum differential of 12°C from either supply temperature).
Connections
•
•
•
Inlets: 15 mm Compression or 1/2" BSP flat face.
Standard connections are: hot - left, cold - right.
The inlet connectors are fixed at 200 mm centres.
Important Points
1.
The installation, commissioning and maintenance of this product must be
carried out in accordance with the instructions given in the manual, and must
be conducted by designated, qualified and competent personnel.
2.
Installations must comply with all Local/National Water Supply Authority
Regulations/Bye-laws, and Building and Plumbing (UK:BS6700) Regulations.
3.
Rada products are precision engineered and should give continued and superior
performance, provided:
a.
They are installed, commissioned, operated and maintained in
accordance with these recommendations
b.
Periodic attention is given as necessary to maintain the product in
good functional order. Recommended guidelines are given in section:
‘Maintenance’.
4.
Warning! Continued use of this product in conditions outside the limits listed
in this section can severely affect the performance and reduce the effective
service life, and can present potential risk to users.
5.
Suitable for use with most modulating instantaneous gas water heaters.
For information on other specific applications or suitability, contact Kohler Mira
Ltd or your local agent.
6.
Disinfectants and Other Chemicals: In applications where system chemical
disinfection is practised, chlorine can be used (calculated chlorine concentration
of 50 mg/l (ppm) maximum in water, per one hour dwell time, at service interval
frequency). Such procedures must be conducted strictly in accordance with all
relevant Guidelines/Approved Codes of Practice.
8
Note! the use of ammonia or any ammonia type chemicals ( e.g. as found in
some solder fluxes) can attack brass material which may lead to premature
failure.
If in any doubt as to the suitability of chemical solutions, contact Kohler Mira
Ltd or your local agent.
Normal Operating Conditions are considered as:
1. Inlet dynamic pressures nominally balanced to within ten percent of each other
during flow.
2.
A differential of approximately 50°C between the hot and cold inlet temperatures,
and with differentials of 15 - 35°C between the blend setting and either
supply.
3.
Daily usage of 1 - 6 hours.
4.
Installation and usage environment not subject to extremes of temperature,
unauthorised tampering or willful abuse.
9
Dimensions
260
200
175
105
50
Ø 42
131.5
1/2” BSP
115
260
175
200
131.5
296
115
Ø 60
50
1/2” BSP
All dimensions are nominal and in millimetres
10
INSTALLATION
1.
Before commencing, make sure that the installation conditions comply with the
information given in section: ‘Specifications’. For Type 3 valves, refer to the
the TMV3 Requirements Manual.
2.
Care must be taken during installation to prevent any risk of injury or
damage.
3.
Layout and sizing of pipework MUST be such that nominally equal inlet supply
pressures are achieved and effects of other draw-offs are minimised.
4.
The Rada Safetherm is suitable for installation as part of a gravity-fed plumbing
system. Minimum inlet pressures of 0.1 bar (1 metre head) are required,
though inlet pressures of 1 bar (10 metre head) are recommended for optimum
performance. If minimum inlet pressures are not available then it will be
necessary to install a pump.
5.
When used with a high pressure system above 5 bar maintained pressure,
a pressure reducing valve will be necessary. It is important that the system
pressures are within the range specified for the Safetherm.
If the system pressure is not known then the system pressure MUST be
measured.
Pressures are those present at the inlet to the appliance either whilst running
(maintained) or in the off state (static). Nearby hot and cold taps connected to
the same proposed feed pipes as the appliance can be used to measure the
static pressure. No other fitting or appliance should be in use at this time.
6.
Conveniently situated isolating valves MUST be fitted to the supply
pipework.
7.
If the control is to be used with a fully modulating multipoint water heater, fully
modulating combination boiler, thermal store or unvented system an expansion
vessel must be fitted to accommodate the expansion of water in the domestic
hot water supply (this may already be part of the system, check the details on
the boiler/heater or contact the boiler/heater manufacturer).
8. Supply pipes MUST be flushed to clear debris before connecting the control.
Note! The Rada Safetherm is supplied with hot left and cold right inlet
connections as standard.
11
Panel Mounting
Warning! Make sure that there are no buried cables or pipes in the wall before
drilling.
1.
2.
Temporarily assemble the inlet
connectors with the inlet elbows
tightening both grubscrews with a
2.5 mm hexagonal key.
Heat
Shroud
21 mm
Fit the 'O' seal to the rear face of the
inlet connectors then install the inlet
connectors through the Ø21 mm
holes and loosely fit the back nuts.
4.
Install the hot and cold supply
pipework ensuring that the pipe ends
align with the inlet connectors.
5.
Fit the compression nuts and olives
or the flat face connectors onto the
supply pipes and connect the supply
pipes to the inlet connectors.
Confirm that the inlet connectors are
level and the specified distance apart
then use a suitable wrench to tighten
the back nuts.
Note! Use the flats provided on the
inlet connectors to hold the connectors
in position while tightening the back
nuts.
Grubscrew
Inlet
Connector
Mark the positions of the holes for
the inlet connectors on the panel and
then drill two Ø21 mm holes for the
inlet connectors.
3.
2.5 mm Hexagonal
Key
'O' Seal
Inlet
Elbow
200 mm
Compression Nut
Olive
Back Nut
Inlet
Connector
Compression Nut
Olive
Inlet
Connector
12
6.
7.
Turn the isolators to the OFF position
then turn on the water supply and
check for leaks.
Note! The isolation valve is located
in the body of the inlet connector.
To isolate the water supply, turn the
screw slot on the isolation valve a
quarter turn.
Fit the heat shrouds to the inlet
connectors. Note! The access
window of the heat shroud must
align with the isolation valve.
Heat
Shroud
The access window
of the heat shroud
must align with the
isolation valve.
OFF
8.
9.
ON
Slide the concealing shrouds along
the elbows then fit the tap control
to the inlet connectors. Use a 2.5
mm hexagonal key to tighten both
grubscrews and secure the tap
control to the inlet connectors.
Turn the isolators to the ON position
and check for leaks.
10. Slide the concealing shroud back
and screw onto the heat shroud to
conceal the grubscrews.
11. Set the maximum temperature
refer to section: 'Commissioning Maximum Temperature Setting'.
13
Concealing
Shroud
Basin Mounting
Deck Mount
Plate
1.
Slide the 'O' seal along the threaded
section of the inlet connector then
screw the inlet connector and the
deck mount plate together.
2.
Insert the inlet connectors through
the basin holes.
3.
Fit the large rubber washers and back
plates then loosely fit the back nuts.
4.
Install the hot and cold supply
pipework. Make sure that the pipe
ends align with the inlet connectors.
5.
6.
Install the compression nuts and
olives or the flat face connectors onto
the supply pipes and connect the
supply pipes to the inlet connectors.
Confirm that the inlet connectors
are the specified distance apart
then use a suitable wrench to tighten
the back nuts. Note! Use the flats
provided on the inlet connectors to
hold the connectors in position while
tightening the back nuts.
Turn the isolators to the OFF position
then turn on the water supply and
check for leaks. Note! The isolation
valve is located in the body of the
inlet connector. To isolate the water
supply, turn the screw slot on the
isolation valve a quarter turn.
14
'O' Seal
Inlet Connector
Inlet Connector
Deck Mount
Plate
'O' Seal
'O' Seal
Large Rubber
Washer
Back Plate
Back Nut
Olive
Compression
Nut
m
0m
20
7.
Fit the deck mount rings over the inlet
connectors.
8.
Fit the heat shrouds to the inlet
connectors. Note! The access
window of the heat shroud must
align with the isolation valve.
8.
Screw the elbow extensions onto
the inlet connectors and tighten with
a 10 mm hexagonal key. Slide the
concealing shrouds onto the elbow
extensions.
9.
Fit the tap control onto the elbow
extensions pushing down to make
sure it is correctly seated. Use a
2.5 mm hexagonal key to tighten
the grubscrews and secure the tap
control to the inlet connectors.
10. Turn the isolators to the ON position
and check for leaks.
The access window
of the heat shroud
must align with the
isolation valve.
OFF
Elbow
Extension
Concealing
Shroud
Deck Mount
Ring
11. Slide the concealing shroud back
to the basin surface to conceal the
grubscrews.
10. Set the maximum temperature
refer to section: 'Commissioning Maximum Temperature Setting'.
15
Heat
Shroud
ON
OPERATION
Rada Safetherm uses a single sequential control lever for on/off and temperature
control.
The control lever operates anti-clockwise in the following sequence:
•
•
•
•
•
Off
On
Cool
Warm
Maximum Preset Temperature
OFF
30°
120°
Maximum
Preset
16
COMMISSIONING
Commissioning must be carried out in accordance with these instructions, and must
be conducted by designated, qualified and competent personnel.
Exercising the Thermostat
Thermostatic mixing valves with wax thermostats are inclined to lose their
responsiveness if not used. Valves which have been in storage, installed but not
commissioned, or simply not used for some time should be exercised before setting
the maximum temperature or carrying out any tests.
Note! Make sure that the hot and cold water supplies are available at the inlets.
1.
Move the tap control lever rapidly from cold to hot and hot back to cold several
times, pausing at each extreme.
2. Operate the tap control and check:
a. Flow rate is sufficient for the purpose
b. Temperature(s) obtainable are acceptable.
3. Adjust the temperature of the mixed water in accordance with the instructions
(refer to the section: 'Commissioning: Maximum Temperature Setting' ).
For Type 3 valves refer to the table in the TMV3 Requirements Manual.
It is advisable to establish a performance check at this time, which should be noted
for future reference as part of a Planned Maintenance Programme. The procedure
should be chosen to imitate both typical and difficult operating conditions, such as
any supply pressure fluctuations that may be likely. An ideal method is to locate
another outlet on the common cold water supply close to the mixing valve (operating
this outlet should cause a drop in supply pressure), and note the subsequent effect
on blend temperature (should be no more than a 2° C change).
Maximum Temperature Setting
Before using the thermostatic control the maximum temperature must be checked
to make sure that it is at a safe level. It has been preset to approximately 41°C at
the factory but due to variations in site conditions the maximum temperature may
need adjustment.
Note! Make sure that the hot water temperature is at least 55°C and that there is
sufficient supply.
1. Turn the tap to the maximum temperature and maximum flow setting (i.e. fully
anticlockwise) and allow the temperature to stabilise.
If the temperature is too hot or too cold adjust as follows:
17
2.
3.
4.
5.
Carefully remove the concealing cap, unscrew the grubscrew using a 2.5 mm
hexagonal key (supplied) and pull off the control lever.
Unscrew the hub retaining screw with a 2.5 mm hexagon key.
Note! Do not remove the hub.
Insert the 2.5 mm hexagon key into the centre of the spindle and engage with
the recessed temperature adjusting screw.
Rotate the hexagon key until the required maximum temperature is obtained
at the tap outlet. Anticlockwise to increase the temperature, or clockwise to
decrease the temperature (¼ turn = approximately 1°C).
Concealing Cap
Control
Lever
2.5 mm
Hexagonal Key
Grubscrew
-
+
Hub Retaining
Screw
2.5 mm
Hexagonal Key
Hub
Maximum Temperature Setting
6.
7.
8.
9.
Once the desired maximum blend temperature has been achieved turn off the
tap control by rotating the hub fully clockwise.
Note! Do not remove the hub.
Refit the hub retaining screw.
Refit the control lever.
Push the control lever down (1), and tighten the grubscrew (2) and refit the
concealing cap.
1
2
10. Check that the temperature is correct.
18
FAULT DIAGNOSIS
Symptom
1.
Cause/Rectification
Only hot or cold a.
water from tap b.
outlet.
c.
d.
e.
Inlet supplies reversed. Check.
No hot water reaching control. Check.
Check filters and inlet fittings for blockage.
Installation conditions continuously outside operating
parameters: refer to the section: 'SPECIFICATIONS'
and symptom 2.e.
Refer to symptom 5.
2.
Fluctuating or Normal function of thermostatic control when operating
reduced flow conditions are unsatisfactory;
rate.
a. Check filters and inlet/outlet fittings for flow restriction.
b. Make sure that minimum flow rate is sufficient for supply
conditions.
c. Make sure that maintained inlet pressures are nominally
balanced and sufficient.
d. Make sure that inlet temperature differentials are
sufficient.
e. (Subsequent to rectification of supply conditions) Check
thermostatic performance; renew thermostatic cartridge
if necessary.
3.
No flow from a. Check filters and inlet/outlet fittings for blockage.
tap outlet.
b. Hot or cold supply failure; thermostat holding correct
shutdown function: rectify, and refer to symptom 2.e.
c. Thermostatic cartridge faulty. Check and renew if
necessary.
4. B l e n d Indicates operating conditions changed.
temperature a. Refer to symptom 2.
drift.
b. Hot supply temperature fluctuation.
c. Supply pressure fluctuation.
d. Thermostatic cartridge faulty. Check and renew if
necessary.
5.
Hot water in Indicates check valves require maintenance, refer to the
cold supply or section: 'MAINTENANCE'.
vice versa.
19
Symptom
Cause/Rectification
6.
M a x i m u m a. Indicates incorrect maximum temperature setting; refer
b l e n d
to the section: 'COMMISSIONING'.
temperature b.As symptom 4.
setting too hot c.As symptom 5.
or too cool.
7.
Water leaking Seal(s) worn or damaged.
from control a. Obtain service pack and renew all seals.
b. If leak persists renew thermostatic cartridge.
body.
8. C o n t r o l a.
Lever stiff to
operate.
b.
c.
9.
Impaired movement of internal components. Renew the
thermostatic cartridge.
Supply pressures too high. Fit pressure reducing valve.
Refer to the section: 'SPECIFICATIONS' for acceptable
operating pressures.
Pressure build up. This may be due to domestic hot
water expansion. Fit domestic hot water expansion
vessel (available from your local stockist). If one already
fitted, it may be deflated and require repressurization.
Drip from tap a.
outlet.
A small amount of water may be retained in the valve
after the tap control has been turned off. This is quite
normal and should drain after a few minutes.
10. S a f e t h e r m a.
noisy during
operation.
The inlet supply pressures may be unbalanced. Fit a
drop tight Pressure Reducing Valve (PRV) just after
the incoming mains stopcock, effectively balancing the
hot and cold supply pressures. Ideally set the PRV to
3.0 bar.
The inlet supply pressures may be high. The maximum
maintained pressure should not exceed 5 bar. If greater,
fit a drop tight PRV installed as detailed above.
b.
20
MAINTENANCE
Planned Maintenance
Malfunction of Thermostatic Mixing Valves is almost always progressive in nature
and will be detected by the use of proper temperature checking and maintenance
routines.
Certain types of system can result in the valve having excessive ‘dead-legs’ of
pipework, or auxiliary cold water supply added to the mixed water from the valve.
Such systems can disguise the onset of thermostatic mixing valve malfunction and
should not be used.
We recommend a preventative maintenance procedure based on site conditions
and the risk to the user. All results must be recorded in a log book.
Healthcare
Healthcare applications are hospitals, aged person facilities, residential care homes,
etc. and any other applications where the user is similarly at risk.
Ultimately, the user or attendant must exercise diligence to make sure that the delivery
of warm water is at a stable, safe temperature. This is particularly important in such
procedures as supervised bathing where patients are unable to respond immediately
to unsafe temperatures.
Commercial
Check for correct blend setting every 6 months.
Follow the In-Service Test Procedure every 12 months.
Critical Components
Irrespective of supply and usage conditions or the evidence of in-service tests, critical
components should be replaced at intervals of no more than 5 years.
Note! During the replacement of critical components, it may be necessary to replace
other non-critical components.
Cleaning
External surfaces can be cleaned with products associated with basin cleaning
referenced in the NHS cleaning manual.
Caution: Plated or plastic fittings should only be cleaned using a mild detergent or
soap solution and wiped dry with a soft cloth.
21
Thermostatic Cartridge Renewal
Important! Use only silicone-based lubricants
when reassembling.
1. Isolate the water supplies using the ball
valves fitted in the inlet connectors.
2. Turn on the control lever to relieve
water pressure and to drain any residual
water.
3. Carefully remove the concealing cap.
4. Unscrew the grubscrew using a 2.5 mm
hexagonal key (supplied) and pull off the
control lever.
5. Pull off the bearing.
6. Use a suitably sized wrench to unscrew
the brass cartridge retaining nut then pull
out the thermostatic cartridge.
7.
8.
9.
10.
11.
12.
13.
Pull off the cardboard shroud from the
new cartridge.
Caution! The cartridge is factory set, do
not turn the cartridge end.
Make sure that the tap control body
is clean and free from limescale and
carefully push the replacement cartridge
into the body, aligning the cartridge lugs
into the correct body slots (1). Secure by
tightening the brass cartridge retaining
nut (2).
Important! Take care when fitting the
cartridge as damage to the cartridge inlet
seals may result in water dripping from
the tap control outlet.
Refit the bearing and control lever.
Push the control lever down (3) and using
the 2.5 mm hexagonal key tighten the
grubscrew (4).
Refit the concealing cap.
Restore the hot and cold water supplies
and check for leaks.
This completes the replacement of the
thermostatic cartridge and/or hub.
Go to section: ‘Commissioning’.
22
Control
Lever
Concealing
Cap
Grubscrew
Bearing
Wrench
Thermostatic
Cartridge
Cardboard
Shroud
DO NOT turn
cartridge end
3
4
Cartridge Lug
Cartridge Renewal
Filter Renewal
Should the filters require cleaning or renewal then the following procedure should
be followed (refer to the following illustration).
Important! Use only silicone-based lubricants when reassembling.
1. Isolate the water supplies using the ball valves fitted in the inlet connectors and
operate the lever to drain the tap control of any residual water.
2. Use a suitably sized wrench to unscrew and remove the filter plug.
Note! Using a suitable cloth over the elbow plug will reduce the risk of damaging
the chrome finish.
3. Pull out the filter cap and filter from the elbow using a pair of long nosed pliers
if necessary.
5. The filters may be cleaned under a jet of water, or renewed. Make sure there
is no debris or damage to the ‘O’ seals.
6. Refit the filter and filter cap.
7. Tighten the filter plug.
8. Restore the hot and cold water supplies and check for leaks.
9. Restore the water supplies using the ball valves fitted in the inlet connectors
and make sure there are no leaks.
Cold Elbow
Hot Elbow
Filter
Filter Cap
Filter Plug
Filter Renewal
23
Checkvalve Cartridge Renewal
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Isolate the water supplies using the ball valves fitted in the inlet connectors and
operate the lever to drain any residual water.
Use a 2.5 mm hexagonal key to loosen the grubscrews and release the main
tap control body from the inlet connectors.
Remove the tap control.
Use a 2.5 mm hexagonal key to loosen the grubscrews, then remove the elbows
from the tap control body.
The checkvalve cartridge is seated between two seals and as the elbow is
removed may be retained in the elbow or the main body, either:
• Pull the checkvalve cartridge to remove it from the body, or
• If the checkvalve cartridge remains in the elbow use a pair of long nosed pliers to remove it.
Discard the original checkvalve cartridge then push the replacement checkvalve
into the body making sure the 'O' seal engages fully.
Slide the elbow over the checkvalve cartridge pushing firmly to relocate the
elbow with the seals in the tap body.
Retighten the grubscrew to secure the elbow to the tap body.
Repeat this process to replace the other checkvalve cartridge.
Refit the tap control to the inlet connectors and retighten the grubscrews.
Restore the water supplies and make sure there are no leaks.
Tap Body
Elbow
Checkvalve
2.5 mm Hexagonal Key
24
SPARE PARTS
Safetherm Spare Parts Diagram (Panel Mount)
1704.193
Screw Pack - Identified A
1704.181
Lever and
Bearing
1704.194
Seal Pack - Identified B
A
1704.228
Isolator
A
1704.180
Hub
1704.179
Cartridge
Assembly
1704.227
Panel Shroud
Screw
B
A
1704.186
Flow
Straightener
1704.226
Hot Elbow Hex
Assembly
1704.185
Checkvalve
B
1704.184
Filter
1704.224
Hex Filter Plug
1704.168
Component
Pack
Accessories
1704.196 - Pall Filter Adapter
25
1704.225
Cold Elbow Hex
Assembly
Safetherm Spare Parts Diagram (Basin Mount)
1704.193
Screw Pack - Identified A
A
1704.181
Lever and
Bearing
1704.179
Cartridge
Assembly
1704.225
Cold Elbow Hex
Assembly
1704.194
Seal Pack - Identified B
1704.185
Checkvalve
1704.224
Hex Filter
Plug
A
1704.184
Filter
B
B
A
1704.226
Hot Elbow Hex
Assembly
1704.186
Flow
Straightener
A
1704.195
Basin Shroud
B
1704.228
Isolator
1704.178
Basin Mount
Component
Pack
B
Accessories
1704.196 - Pall Filter Adapter
1704.168
Component
Pack
26
NOTES
27
CUSTOMER
CUSTOMER
SERVICE
CARE
Guarantee of Quality
Rada Customer Service
Rada products have the benefit of our one year
manufacturer’s guarantee which starts from the date of
purchase.
Within the guarantee period we will resolve defects in
materials or workmanship, free of charge, by repairing or
replacing parts or product as we may choose.
Technical Helpdesk Service
This guarantee is subject to the following
conditions:
•
•
•
•
The product must be installed and maintained in
accordance with the instructions given in this guide.
Repair work must only be undertaken by us or our
approved agent. Note! If a service visit is required
the product must be fully installed and connected to
services.
Repair under this guarantee does not extend
the original expiry date. The guarantee on any
replacement parts or product ends at the original
expiry date.
For shower fittings or consumable items we reserve
the right to supply replacement parts only.
The guarantee does not cover:
•
•
•
•
•
Call out charges for non product faults (such as
damage or performance issues arising from incorrect
installation, improper use, lack of maintenance, build
up of limescale, frost damage, corrosion, system
debris or blocked filters) or where no fault has been
found with the product.
Water or electrical supply, waste and isolation
issues.
Compensation for loss of use of the product or
consequential loss of any kind.
Damage or defects caused if the product is repaired
or modified by persons not authorised by us or our
appointed representative.
Routine maintenance or replacement parts to comply
with regulatory requirements.
What to do if something goes wrong
If your product does not function correctly when you first
use it, contact your installer to check that it is installed
and commissioned in accordance with the instructions in
this manual.
Should this not resolve the issue, contact us and we will
offer you or your installer advice.
If the performance of your product declines, check within
this manual to see if maintenance is required. Contact us
if you require further assistance.
Our
dedicated
Customer
Services
Team
is
comprehensively trained and can offer help and advice,
spare parts, accessories or a service visit.
We will need you to have your model name or number
and date of purchase.
As part of our quality and training programme calls may
be recorded or monitored.
Spares and Accessories
We maintain extensive stocks of genuine spares and
accessories and aim to provide support throughout the
products life.
Payment can be made by phone at time of order using
most major Credit or Debit cards and we aim to despatch
orders within two working days. Items purchased from us
are guaranteed for 12 months from date of purchase.
For safety reasons spares exposed to mains voltages
should only be fitted by competent persons.
Returns – items can be returned within one month of date
of purchase, providing that they are in good condition and
the packaging is unopened. Please obtain authorisation
from our Customer Services Team before return. We
reserve the right to apply a 15% restocking charge.
Service / Repairs
We have a nationwide team of fully trained and approved
Service Technicians who can carry out all service or repair
work both within the guarantee period and beyond.
You have the assurance of a fully trained Technician,
genuine Rada spare parts and a 12 month guarantee on
any chargeable work done.
Service Contracts
A regular service ensures your product continues to
perform at the peak of performance. We offer yearly
or bi-annual servicing carried out by our full trained
technicians subject to site survey.
Contact us for more details.
Rada Controls,
Cromwell Road,
Cheltenham,
Gloucestershire,
GL52 5EP
CustomerService&SpecificationEnquiries
Telephone: 0844 571 1777
Mon to Fri 8:30 am - 5:0 pm
E-mail: rada_technical@mirashowers.com
Fax: 01242 282595
Rada is a registered trademark of
Kohler Mira Limited.
The company reserve the right to alter
product specifications without notice.
www.radacontrols.com
1139248-W2-D
28
© Kohler Mira Limited, August 2012
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