Kohler 1190330-NA User manual

11095640-W2-B
IMPORTANT
INSTALLER: THIS MANUAL IS THE PROPERTY OF THE
CUSTOMER AND MUST BE RETAINED WITH THE PRODUCT
FOR MAINTENANCE AND OPERATIONAL PURPOSES.
Installation and User Guide
Built-In Shower Valve
MODEL NUMBERS
Important! Please quote the above model number(s) when ordering spares
1190330-NA, 998W-K-NA
Temperature Only
Single Sequential

2
1095640-W2-B
CONTENTS
Safety Warnings ...................................................................................... 3
Pack Contents .........................................................................................5
Specications ..........................................................................................6
Pressures and Flow Rates ...................................................................6
Dimensions ..............................................................................................7
Installation ...............................................................................................8
Suitable Plumbing Systems..................................................................8
General................................................................................................. 8
Reversing the Outlet Position.............................................................10
Installation Procedure........................................................................... 11
Operation ...............................................................................................15
Commissioning .....................................................................................16
Maximum Temperature Setting ..........................................................16
Fault Diagnosis......................................................................................18
Maintenance...........................................................................................19
Spare Parts ............................................................................................21
Notes ......................................................................................................22
Customer Care.......................................................................................24

31095640-W2-B
WARNING - This product can deliver scalding temperatures if not installed,
operated or maintained in accordance with the instructions, warnings and
cautions contained in this guide.
The function of a thermostatic mixing valve is to deliver water consistently at a safe
temperature. In keeping with every other mechanism, it cannot be considered as
functionally infallible and as such, cannot totally replace a supervisors vigilance
where that is necessary. Provided it is installed, commissioned and maintained within
manufacturers recommendations, the risk of failure, if not eliminated, is reduced to
the minimum achievable.
Kohler thermostatic mixers are precision engineered and should give continued safe
and controlled performance, provided:
1. They are installed, commissioned, operated and maintained in accordance with
the manufacturer’s recommendations.
2. Periodic attention is given, when necessary, to maintain the product in good
functional order.
Caution!
1. DO NOT install the product in a position in which service access is restricted.
2. Read all of these instructions. Retain this guide for later use.
3. Installation must be carried out in accordance with these instructions, and must
be conducted by designated, qualied and competent personnel.
4. Pass on this guide in the event of change of ownership of the installation site.
5. Follow all warnings, cautions and instructions contained in this guide.
6. Make sure that you fully understand how to operate this shower before use, read
all operating instructions and retain this guide for future reference.
7. This product is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction concerning the use of
the product by a person responsible for their safety.
8. Anyone who may have difculty understanding or operating the controls of any
shower should be attended whilst showering. Particular consideration should be
given to the young, the elderly, the inrm or anyone inexperienced in the correct
operation of the controls.
9. Children should be supervised to ensure that they do not play with the product.
10. DO NOT perform any unspecied modications to the shower or its accessories.
When servicing only use genuine Kohler replacement parts.
11. Only Kohler recommended outlet ttings should be used.
12. DO NOT operate the temperature control rapidly, allow 10 – 15 seconds for the
temperature to stabilise before use.
SAFETY WARNINGS

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1095640-W2-B
13. Care is required when adjusting ow or temperature, make sure that the
temperature has stabilised.
14. Care is required if the product is turned off and back on during showering as this
may result in unstable temperature. Ensure temperature has stabilised before
re-using product.
15. Sunburn or skin conditions can increase your sensitivity to hot water. Make sure
that you set the shower to a cooler temperature.
16. DO NOT t the product where it may be exposed to freezing conditions. DO
NOT operate if the appliance is frozen, allow the appliance to thaw and check
for leaks before using.
17. Insulate any pipework that could be exposed to freezing conditions.
18. The water supplies to this product must be isolated if the product is not to be
used for a long period of time. If the product or pipework is at risk of freezing
during this period they should also be drained of water.
19. When this product has reached the end of its serviceable life, it should be
disposed of in a safe manner, in accordance with current local authority recycling,
or waste disposal policy.
20. If you experience any difculty with the installation of your new shower, then
please refer to “Fault Diagnosis”, before contacting Kohler Mira Limited. Our
telephone and fax numbers can be found on the back cover of this guide.

51095640-W2-B
PACK CONTENTS
Or
q1 x Mixer Valve
Single Sequential Temperature Only
q1 x Building in Shroud
q1 x Adapter Pack
q3 x Screws q3 x Wall Plugs

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1095640-W2-B
SPECIFICATIONS
Pressures and Flow Rates
Note! For optimum performance, dynamic supply pressures should be nominally
equal.
Recommended Minimum Dynamic Supply Pressure: 0.15 bar.
Recommended Maximum Dynamic Supply Pressure: 5 bar.
Maximum Static Pressure: 10 bar.
Recommended Minimum Flow Rate: 3 L/min at mid-blend with equal dynamic
supply pressures.
Recommended Maximum Flow Rate: 35 L/min at mid-blend (which equates to
maximum pressure loss of 1.8 bar).
Temperatures
Optimum performance is obtained when temperature differentials of 20°C or more
exist between blend and either supply. Blend control accuracy will begin to diminish
at temperature differentials below 12°C.
Blend Temperature Range: between ambient cold and approximately 60°C,
according to hot water supply temperature.
Thermostatic Control Range: approximately 25-60°C.
Optimum Thermostatic Control Range: 30-50°C.
Recommended Minimum Cold Water Temperature: 1°C.
Recommended Maximum Hot Water Supply Temperature: 85°C.
Connections
Inlets and Outlet: 1/2” BSP external union or 15 mm compression.
Pressure Loss (bar)
Flow Rate (L/Min)
0.51.0 1.
52
.00
0
10
20
30
40
50

71095640-W2-B
DIMENSIONS
All dimensions are nominal and in mm.
140
16
77
140
53
Single Sequential Temperature Only
16
77
53

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1095640-W2-B
INSTALLATION
Suitable Plumbing Systems
Gravity Fed:
The thermostatic mixer must be fed from a cold water cistern (usually tted in the
loft space) and a hot water cylinder (usually tted in the airing cupboard) providing
nominally equal pressures.
Gas Heated System:
The thermostatic mixer can be installed with a combination boiler.
Unvented Mains Pressure System:
The thermostatic mixer can be installed with an unvented, stored hot water system.
Mains Pressurised Instantaneous Hot Water System:
The thermostatic mixer can be installed with systems of this type with balanced
pressures.
Pumped System:
The thermostatic mixer can be installed with an inlet pump (twin impeller). The pump
must be installed on the oor next to the hot water cylinder.
General
Installation must be carried out in accordance with these instructions, and must be
conducted by designated, qualied and competent personnel.
The installation must comply with the “Water Supply Regulations 1999 (Water
Fittings)” or any particular regulations and practices, specied by the local water
company or water undertakers.
Note! Make sure that all site requirements correspond to the information given in
section: ‘Specications’.
1. The product must not be installed in an area where it may freeze. Pipework to
the product that could become frozen must be properly insulated.
2. Do not install the product in a position in which service access is restricted.
3. For stud partitions alternative xings may be required.
4. Isolating valves must be installed close to the product for ease of maintenance.
5. Pipework must be rigidly supported and avoid any strain on the connections.
6. Pipework dead-legs should be kept to a minimum.
7. If pipework enters the product from the rear through a hole in the wall, provision
must be made to prevent water ingress back into the wall structure.

91095640-W2-B
(0.1 bar). Double checkvalves tted in the inlet supply to the appliance cause a
pressure build up, which affect the maximum static inlet pressure for the appliance
and must not be tted. For Fluid category 5 double checkvalves are not suitable.
9. The showerhead should be positioned so that it discharges down the centre line
of the bath or across the opening of a shower cubicle.
10. Only use the inlet connections supplied with the product. DO NOT use any other
type of ttings.
11. All pipework must be checked for leaks before the product installation is
completed. The product should be pressurised and the inlet & outlet connections
inspected.
12. DO NOT overtighten connections, screws or grubscrews as product damage
may occur.
13. Upon completion of installation, or if the product is dismantled during installation
or servicing, then the product must be inspected to ensure that there are no leaks.
14. Having completed the installation, make sure that the user is familiar with the
operation of the product.
Zone of
Backow Risk
30 mm
Minimum
Toilet or Bidet
FC5
Hand Basin
FC3
Bath or Shower
Tray FC3
Mixer
Shower
25 mm
Minimum
25 mm Minimum
8. The position of the shower and
shower ttings must provide a
minimum gap of 25 mm between
the showerhead and the spill
over level of any bath, shower
tray or basin and a minimum
gap of 30 mm between the
showerhead and the spill over
level of any toilet, bidet or other
appliance with a Fluid Category
5 backow risk (see diagram).
Note! There will be occasions when
the hose retaining ring will not provide
a suitable solution for Fluid Category
3 installations, in these instances an
outlet double checkvalve must be
tted, this will increase the required
supply pressure typically by 10kPa

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1095640-W2-B
Reversing the Outlet Position
1. Remove the outlet adapter using a 12 mm hexagonal wrench (not supplied).
2. Remove the outlet blanking plug using a 12 mm hexagonal wrench.
3. Screw the outlet adapter, complete with ‘O’ seal into the bottom hole previously
blanked and tighten.
4. Screw the outlet blanking plug, complete with ‘O’ seal, into the top hole and
tighten.
Outlet Blanking
Plug
Outlet Adapter
Temperature Only valve shown